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                     ON THE TRAIL OF THE SPACE PIRATES

                    A TOM CORBETT Space Cadet Adventure

                             By CAREY ROCKWELL

                       WILLY LEY _Technical Adviser_

                      ILLUSTRATIONS BY LOUIS GLANZMAN




GROSSET & DUNLAP _Publishers_ New York

COPYRIGHT, 1953, BY
ROCKHILL RADIO
ALL RIGHTS RESERVED

PRINTED IN THE UNITED STATES OF AMERICA

[Transcriber's note:  This is a rule 6 clearance.  PG has not been able
to find a copyright renewal for this book.]




ILLUSTRATIONS


Hawks stood up and eyed the two men coldly

Tom saw three pretty girls board the ship

The hatch opened again and the two spacemen entered the air lock

The scar-faced man obviously wanted something from Tom

The young cadet timed his move perfectly

All Solar Guard defense measures seemed to be futile

Astro and Coxine were locked in mortal combat




ON THE TRAIL OF THE SPACE PIRATES




CHAPTER 1


"ALL ABOARD!"

A metallic voice rasped over the loud-speakers and echoed through the
lofty marble and aluminum concourse of the New Chicago Monorail
Terminal. "Atom City express on Track Seven! Space Academy first stop!
Passengers for Space Academy will please take seats in the first six
cars!"

As the crowd of people waiting in the concourse surged through the gate
leading to Track Seven, three boys in the royal-blue uniforms of the
Space Cadet Corps slowly picked up their plastic space bags and joined
the mass of travelers.

Wearily, they drifted with the crowd and stepped on the slidestairs
leading down to the monorail platform. In the lead, Tom Corbett, the
command cadet of the unit, a tall, curly-haired boy of eighteen,
slouched against the handrail and looked back at his two unit-mates,
Roger Manning and Astro. Manning, a slender cadet, with close-cropped
blond hair, was yawning and blinking his eyes sleepily, while Astro, the
third member of the unit, a head taller than either of his unit-mates
and fifty pounds heavier, stood flat-footed on the step, eyes closed,
his giant bulk swaying slightly with the motion of the slidestairs.

"Huh! A real snappy unit!" Tom muttered to himself.

"Hmmm? What?" Roger blinked and stared bleary-eyed at Tom.

"Nothing, Roger," Tom replied. "I only hope you guys can stay awake long
enough to get on the monorail."

"It's your own fault, Tom," rumbled Astro in his bull-like voice. "If
your family hadn't thrown so many parties for us while we were on leave,
we'd have had more sleep."

"I didn't hear any complaints then," snorted Tom. "Just get into the car
before you cork off, will you? I'm in no shape to carry you."

Seconds later, the slidestairs deposited the three boys on the platform
and they slowly made their way through the crowd toward the forward cars
of the monorail. Entering the third car, they found three seats together
and collapsed into their luxurious softness.

"Oh, brother!" Tom groaned as he curled himself into the cushions, "I'm
going to sleep all the way to the Academy."

"I'm asleep already," mumbled Roger, his voice muffled by his cap pulled
low over his face.

Suddenly Astro sat bolt upright. "I'm hungry!" he announced.

"Oh, no!" moaned Tom.

"Why, you overgrown Venusian ape, Mrs. Corbett gave you dinner less than
an hour ago!" Roger complained. "Steak, French fries, beans, corn, pie,
ice cream...."

"Two helpings," chimed in Tom.

"And now you're hungry!" Roger was incredulous.

"Can't help it," calmly answered Astro. "I'm a big guy, that's all." He
began digging through his space bag for an apple Mrs. Corbett had
thoughtfully provided.

Tom finally stirred and sat up. He had learned a long time ago the
futility of trying to deny Astro's Gargantuan appetite. "There's a
dining car on this section of the monorail, Astro," he said, slapping a
crumpled mass of credits into the Venusian's hamlike hand. "Here. Have
yourself a good time." He slumped back in his seat and closed his eyes.

"Yeah," growled Roger, "and when you come back, don't make any noise!"

Astro smiled. He got up carefully and climbed over his two sleeping
mates. Standing in the aisle, he counted the credits Tom had given him
and turned to the front of the car. Suddenly a heavy voice growled
behind him.

"One side, spaceboy!"

A hand grabbed him by the shoulder and pushed him to one side. Caught
off balance, Astro fell back on his sleeping unit-mates.

"Hey! What th--" stuttered Astro as he sprawled on top of his friends.
The two sleepy cadets came up howling.

"Astro! What in blazes do you think you're doing?" roared Tom.

"Why, you space-brained idiot," yelled Roger, "I ought to lay one on
your chin!"

There was a tangle of arms and legs and finally the three cadets
struggled to their feet. Astro turned to see who had pushed him.

Two men standing at the end of the car grinned back at him.

"It was those two guys at the end of the car," explained Astro. "They
pushed me!" He lumbered toward them, followed by Tom and Roger.

Stopping squarely in front of them, he demanded, "What's the big idea?"

"Go back to your beauty rest, spaceboy!" jeered the heavier of the two
men and turned to his companion, adding with a snarl, "How do you like
his nerve? We not only have to pay taxes to support these lazy kids and
teach them how to be spacemen, but they're loud-mouthed and sassy on top
of it!"

The other man, smaller and rat-faced, laughed. "Yeah, we oughta report
them to their little soldier bosses at Space Academy."

Astro suddenly balled his fists and stepped forward, but Tom grabbed his
arm and pulled him back while Roger eased himself between his mates and
the two grinning men.

"You know, Tom," he drawled, looking the heavier of the two right in the
eye, "the only thing I don't like about being a Space Cadet is having to
be polite to _all_ the people, including the space crawlers!"

"Why, you little punk," sneered the bigger man, "I oughta wipe up the
deck with you!"

Roger smiled thinly. "Don't try it, mister. You wouldn't know what hit
you!"

"Come on, Wallace," said the smaller man. "Leave 'em alone and let's
go."

Astro took another step forward and roared, "Blast off. Both of you!"

The two men turned quickly and disappeared through the door leading to
the next monorail car.

The three cadets turned and headed back down the aisle to their seats.

"Let's get some sleep," said Tom. "We better be in good shape for that
new assignment when we hit the Academy. No telling what it'll be, where
we'll go, or worse yet, when we'll blast off. And I, for one, want to
have a good night's rest under my belt."

"Yeah," agreed Roger, settling himself into the cushions once more.
"Wonder what the orders will be. Got any ideas, Tom?"

"No idea at all, Roger," answered Tom. "The audiogram just said report
back to the Academy immediately for assignment."

"Hey, Astro!" exclaimed Roger, seeing the Venusian climb back into his
seat. "Aren't you going to eat?"

"I'm not hungry any more," grunted Astro. "Those guys made me lose my
appetite."

Tom looked at Roger and winked. "Maybe we'd better tell Captain Strong
about this, Roger."

"Why?"

"Get Astro mad enough and he won't want to eat. The Academy can cut down
on its food bills."

"Ah, rocket off, you guys," growled Astro sleepily.

Tom and Roger smiled at each other, closed their eyes, and in a moment
the three cadets of the Polaris unit were sound asleep.

       *       *       *       *       *

Suspended from a single gleaming rail that stretched across the western
plains like an endless silver ribbon, the monorail express hurtled
through the early dawn speeding its passengers to their destination. As
the gleaming line of streamlined cars crossed the newly developed
grazing lands that had once been the great American desert, Tom Corbett
stirred from a deep sleep. The slanting rays of the morning sun were
shining in his eyes. Tom yawned, stretched, and turned to the viewport
to watch the scenery flash past. Looming up over the flat grassy plains
ahead, he could see a huge bluish mountain range, its many peaks covered
with ever-present snow. In a few moments Tom knew the train would rocket
through a tunnel and then on the other side, in the center of a deep,
wide valley, he would see Space Academy, the university of the planets
and headquarters of the great Solar Guard.

He reached over and shook Roger and Astro, calling, "All right,
spacemen, time to hit the deck!"

"Uh? Ah-ummmh!" groaned Roger.

"Ahhhoooohhhhhh!" yawned Astro. Standing up, he stretched and touched
the top of the monorail car.

"Let's get washed before the other passengers wake up," said Tom, and
headed for the morning room. Astro and Roger followed, dragging their
feet and rubbing their eyes.

Five minutes later, as the sleek monorail whistled into the tunnel
beneath the mountain range, the boys of the _Polaris_ unit returned to
their seats.

"Back to the old grind," sighed Roger. "Drills, maneuvers, books,
lectures. The same routine, day in day out."

"Maybe not," said Tom. "Remember, the order for us to report back was
signed by Commander Walters, not the cadet supervisor of leaves. I think
that means something special."

Suddenly the monorail roared out of the tunnel and into brilliant
early-morning sun again.

The three cadets turned quickly, their eyes sweeping the valley for the
first sight of the shining Tower of Galileo.

"There it is," said Tom, pointing toward a towering crystal building
reflecting the morning light. "We'll be there in a minute."

Even as Tom spoke, the speed of the monorail slackened as it eased past
a few gleaming structures of aluminum and concrete. Presently the white
platform of the Academy station drifted past the viewport and all
forward motion stopped. The doors opened and the three boys hurried to
the exit.

All around the cadets, men and women in the vari-colored uniforms of the
Solar Guard hurried through the station. The green of the Earthworm
cadets, first-year students of the Cadet Corps; the brilliant rich blue
of the senior cadets like the _Polaris_ unit; the scarlet red of the
enlisted Solar Guard; and here and there, the black and gold of the
officers of the Solar Guard.

The three cadets hurried to the nearest slidewalk, a moving belt of
plastic that glided silently across the ground toward Space Academy. It
whisked them quickly past the few buildings nestled around the monorail
station and rounded a curve. The three cadets looked up together at the
gleaming Tower of Galileo. Made of pure Titan crystal, it soared above
the cluster of buildings that surrounded the grassy quadrangle and
dominated Space Academy like a translucent giant.

The cadets stepped off the slidewalk as it glided past the Tower
building and ran up the broad marble stair. At the huge main portal, Tom
stopped and looked back over the Academy grounds. All around him lay the
evidence of mankind's progress. It was the year 2353, when Earthman had
long since colonized the inner planets, Mars and Venus, and the three
large satellites, Moon of Earth, Ganymede of Jupiter, and Titan of
Saturn. It was the age of space travel; of the Solar Alliance, a unified
society of billions of people who lived in peace with one another,
though sprawled throughout the universe; and the Solar Guard, the might
of the Solar Alliance and the defender of interplanetary peace. All
these things Tom saw as he stood in the wide portal of the Tower
Building, flanked by Astro and Roger.

Turning into the Tower, the three cadets went directly to the office of
their unit commander. The training program at Space Academy consisted of
three cadets to a unit, with a Solar Guard officer as their teacher and
instructor. Steve Strong, captain in the Solar Guard, had been their
cadet instructor since the unit had been formed and he now smiled a
welcome as the cadets snapped to attention in front of his desk.

"_Polaris_ unit reporting as ordered, sir," said Tom, handing over the
audiogram order he had received the day before.

"Thank you, Corbett," said Strong, taking the paper. "At ease."

The three boys relaxed and broke into wide grins as Strong rounded his
desk and shook hands with each of them.

"Glad to have you back, boys," he said. "Did you enjoy your leave?"

"And how, sir," replied Tom.

"Tom's mother showed us a whale of a good time," chimed in Roger.

"And how she can cook!" Astro licked his lips involuntarily.

"Well, I hope you had a good rest--" said Strong, but was suddenly
interrupted by the sound of a small bell. Behind his desk a small
teleceiver screen glowed into life to reveal the stern face of Commander
Walters, the commander of Space Academy.

Strong turned to the teleceiver and called, "Yes, Commander Walters?"

"Did the _Polaris_ unit arrive yet, Steve?" asked the commander.

"Yes, sir," replied Strong. "They're here in my office now, sir."

"Good," said the commander with a smile. "I just received a report the
exposition will open sooner than expected. I suggest you brief the
cadets and raise ship as soon as possible."

"Very well, sir," answered Strong. The screen darkened and he turned
back to the cadets. "Looks like you got back just in time."

"What's up, sir?" asked Tom.

Strong returned to his chair and sat down. "I suppose you've all heard
about the Solar Exposition that opens on Venus next week?"

Tom's eyes lit up. "Have we! That's all the stereos and visunews and
teleceivers have been yacking about for weeks now."

"Well," said Strong with a smile, "we're going!"

The three cadets couldn't restrain themselves and burst out in a happy
shout. Then Roger calmed down enough to comment, "Sounds more like
another vacation than an assignment, sir."

"Hardly, Manning," replied Strong. "You see, every industry, society,
organization, and governmental agency is setting up exhibits at the
exposition to show the people what's taking place in their part of the
solar system. There'll also be an amusement section." Strong chuckled.
"I've seen pictures of some of the tricks and rides they've developed to
entertain the younger generation. Believe me, I'd rather take full
acceleration on a rocket ship than ride on any of them."

"But what will we do, sir?" asked Tom.

"Our job is very simple. We're to take the _Polaris_ to the exposition
and land on the fairgrounds. When the fair opens, we show all the
visitors who are interested, everything about her."

"You mean we're going to be"--Roger swallowed--"guides?"

"That's right, Manning," said Strong. "You three will guide all visitors
through the _Polaris_."

"How long will we be there, sir?" asked Tom.

"A month or so, I guess. The _Polaris_ will be the first Academy
exhibit. When you leave, another unit will replace you with their ship
and do the same thing."

"But--but--" stammered Astro, "what will we say to them? The visitors, I
mean?"

"Just answer all their questions, Astro. Also, make up a little speech
about the functions of your particular station."

Strong looked at his watch and rose to his feet. "It's getting late.
Check the _Polaris_ over and stand by to raise ship in an hour."

"Yes, sir," said Tom.

The cadets came to attention, preparing to leave.

"One thing more! Don't get the idea that this is going to be a space
lark," said Strong. "It's very important for the people of the Solar
Alliance to know what kind of work we're doing here at the Academy. And
you three have been selected as representatives of the entire Cadet
Corps. So see that you conduct yourselves accordingly. All right,
dismissed!"

The three cadets saluted sharply and filed out of the room, their
skipper's final words ringing in their ears.

Fifteen minutes later, having packed the necessary gear for the extended
trip, the _Polaris_ unit rode the slidewalk through the grassy
quadrangle and the cluster of Academy buildings, out toward the
spaceport. In the distance they could see the rocket cruiser _Polaris_,
poised on the launching ramp, her long silhouette outlined sharply
against the blue sky. Resting on her four stabilizer fins, her nose
pointed toward the stars, the ship looked like a giant projectile poised
and ready to blast its target.

"Look at her!" exclaimed Astro. "If she isn't the most beautiful ship in
the universe, I'll eat my hat."

"Don't see how you could," drawled Roger, "after the way you put away
Mrs. Corbett's pies!"

Tom laughed. "I'll tell you one thing, Roger," he said, pointing to the
ship, "I feel like that baby is as much my home as Mom's and Dad's house
back in New Chicago."

"All right, all right," said Roger. "Since we're all getting sloppy, I
have to admit that I'm glad to see that old thrust bucket too!"

Presently the three cadets were scrambling into the mighty spaceship,
and they went right to work, preparing for blast-off.

Quickly, with sure hands, each began a systematic check of his station.
On the power deck Astro, a former enlisted Solar Guardsman who had been
admitted to the Cadet Corps because of his engineering genius, stripped
to the waist and started working on the ship's massive atomic engines. A
heavy rocketman's belt of tools slung around his waist, he crawled
through the heart of the ship, adjusting a valve here, turning a screw
there, seeing that the reactant feeders were clean and clear to the
rocket firing chambers. And last of all he made sure the great rocket
firing chambers were secure and the heavy sheets of lead baffling in
place to protect him from deadly radioactivity.

On the radar bridge in the nose of the ship, Roger removed the delicate
astrogation prism from its housing and cleaned it with a soft cloth.
Replacing it carefully, he turned to the radar scanner, checking the
intricate wiring system and making sure that the range finders were in
good working order. He then turned his attention to the intercom.

"Radar bridge to control deck," he called. "Checking the intercom, Tom."

Immediately below, on the control deck, Tom turned away from the control
panel. "All clear here, Roger. Check with Astro."

"All clear on the power deck!" The big Venusian's voice boomed over the
loud-speaker. The intercom could be heard all over the ship unless the
many speakers were turned off individually.

Tom turned his attention back to the great control panel, and one by one
tested the banks of dials, gauges, and indicators that controlled the
rocket cruiser. Tom Corbett had wanted to be a space Cadet as long as he
could remember. After taking the entrance exams, he had been accepted
for the rigid training that would prepare him to enter the ranks of the
great Solar Guard. He had met his two unit-mates, Roger and Astro, on
his very first day at the Academy, and after a difficult beginning,
adjusting to each other's personalities and the discipline of the
Academy routine, the three boys had become steadfast friends.

As control-deck cadet and pilot, Tom was head of the unit,
second-in-command to Captain Strong. And while he could issue orders to
Astro and Roger and expect to be obeyed, the three cadets all spoke
their minds when it came to making difficult decisions. This had
solidified the three cadets into a fighting, experienced, dependable
unit.

Tom made a final check on the gravity generator and turned to the
intercom.

"All departments, report!" he called.

"Radar bridge checks in O.K.," replied Roger.

"Power deck checks in on the nose, Tom," reported Astro.

"Right! Stand by! We blast as soon as the skipper gets around."

Tom turned to the teleceiver and switched it on. The screen blurred and
then steadied into a view of the spaceport outside. Tom scanned the
launching ramp below, and, satisfied it was clear, he switched the
teleceiver to the spaceport traffic-control circuit.

"Rocket cruiser _Polaris_ to spaceport control," he called. "Come in,
spaceport control. Request orbit clearance."

"Spaceport traffic control to _Polaris_," reported the traffic officer,
his face in focus on the teleceiver screen. "Your orbit has been cleared
for blast-off. Orbit number 3847--repeat, 3847--raise ship when ready!"

"Orbit 3847," repeated Tom. "End transmission!"

"End transmission," said the officer. Tom flipped off the teleceiver and
the officer's face disappeared.

At the rear of the control deck, Captain Strong suddenly stepped through
the hatch and dropped his black plastic space bag on the deck. Tom got
up and saluted sharply.

"_Polaris_ ready to blast off, sir," he said. "Orbit cleared."

"Very well, Corbett," replied Strong, returning the salute. "Carry on!"

Tom turned back to the control board and flipped on the intercom.
"Control deck to power deck! Energize the cooling pumps!"

"Cooling pumps, aye!" said Astro.

From the power deck, the massive pumps began their whining roar. The
great ship shuddered under the pressure.

Tom watched the gauge that indicated the pressure control and then
called into the intercom.

"Radar bridge, do we have a clear trajectory?'

"All clear forward and up, Tom," reported Roger from the radar bridge.

"Strap in for blast-off!" bawled the curly-haired cadet.

Captain Strong took his place in the pilot's chair next to Tom and
strapping himself in snapped out, "Feed reactant!"

Spinning a small wheel at the side of the control panel, Tom reported,
"Feeders at D-9 rate, sir!"

Then, as the hiss of fuel pouring into the mighty engines of the ship
blended with the whine of the pumps, Tom snapped out a third order. "Cut
in take-off six yards!"

Receiving acknowledgment from below, he grasped the master blast-off
switch and watched the sweeping hand of the astral chronometer.

"Stand by to raise ship!" he yelled. "Blast off
minus--five--four--three--two--one--_zero_!"

He pulled the switch.

Slowly, the rockets blasting evenly, the giant ship lifted itself free
of the ground. Then, gaining speed, it began rocketing away from the
Earth. Like a giant shining bullet, the great spaceship blasted through
the dark void of space, her nose pointed to the distant misty planet of
Venus.

Once again Tom Corbett and his unit-mates had embarked on a mission for
the Solar Guard.




CHAPTER 2


"Stand by for touchdown!" bellowed Captain Strong's voice on the big
spaceship's intercom.

"Control deck standing by," replied Tom.

"Corbett," Strong continued, "you may take her down as soon as you get
clearance from Venusport traffic control."

Tom acknowledged the order with a brisk "Aye, sir! In a few moments he
received permission to touch down on the newly colonized planet. Then,
turning his attention to the control board, he requested a
ground-approach check from Roger.

"About two miles to touchdown, Tom," reported Roger from the radar
bridge. "Trajectory clear!"

"O.K., Roger," said Tom. Glancing quickly at the air speed and rocket
thrust indicators, he flipped a switch and sang out, "Power deck, reduce
thrust on main drive rockets to minimum!"

"Got ya, Tom," boomed Astro.

"Closing in fast, sir," said Tom to Strong, who had come up from below
and now stood at the cadet's shoulder watching as Tom maneuvered the big
ship through the Venusian atmosphere, his keen eyes sweeping the great
panel of recording gauges and dials.

"One thousand feet to touchdown," intoned Roger from the radar bridge.

Reacting swiftly, Tom adjusted several levers, then picking up the
intercom microphone, he threw a switch and yelled, "Power deck! Full
braking thrust!"

Deep inside the _Polaris_, Astro, who tended the mighty rocket power
plant with loving care, eased home the sensitive control mechanism,
applying even pressure to the braking rockets.

As the giant spaceship settled smoothly to within a few feet of the
surface of the concrete spaceport, Tom threw the master switch that cut
all power. A moment later the huge craft dropped easily, then settled on
the landing platform with a gentle thump.

"Touchdown!" yelled Tom. Then, glancing at the astral chronometer on the
control board, he turned to Strong, and saluting smartly, reported,
"_Polaris_ completes space flight at exactly seven fifty-two-O-two!"

Strong returned the salute. "Very well, Tom. Now, I want you, Roger, and
Astro to come with me to the exposition commissioner's office for an
interview and detailed orders."

"Yes, sir," said Tom.

A few minutes later, dressed in fresh uniforms, the three cadets
followed their unit commander out of the ship, then stood by as Strong
ordered the chief petty officer of an enlisted Solar Guard working party
to prepare the _Polaris_ for moving to the exposition site.

"Empty the reactant fuel tanks of all but enough for us to raise ship
and touch down over to the fairgrounds," said Strong. "Better strip her
of armament, too. Paralo-ray pistols and rifles, the three-inch and
six-inch atomic blasters, narco sleeping gas; in fact, everything that
could possibly cause any trouble."

"Yes, sir," replied the scarlet-clad enlisted spaceman.

"One thing more," added Strong. "There will be a crew living aboard, so
please see that the galley is stocked with a full supply of both fresh
and synthetic foods. That's about all, I guess."

"Very well, sir," replied the petty officer with a crisp salute. He
turned and began bawling orders to a squad of men behind him and
immediately they were swarming over the great ship like ants.

Fifteen minutes later, a jet cab swerved to a stop in front of the
tallest of the Venusport buildings, the Solar Alliance Chamber. Strong
paid the driver, adding a handsome tip, and flanked by his three cadets
strode briskly into the building.

Crossing a high-ceilinged lobby, they entered an express vacuum elevator
and five seconds later stepped out onto the four-hundredth floor. There,
Strong slid a panel door to one side, and, followed by the cadets,
stepped inside the office of Mike Hawks, exposition commissioner and
retired senior officer of the Solar Guard.

The office was impressively large and airy, with an outside wall forming
a viewport of clear Titan crystal reaching from floor to vaulted ceiling
and affording a magnificent view of the city of Venusport and, beyond
it, the futuristic buildings of the exposition itself. Another wall,
equally as large, was covered by a map of the exposition grounds.

Mike Hawks, a man with steel-gray hair, clear blue eyes, and a ramrod
military bearing, sat behind a massive desk talking to two men. He
looked up when Strong and the cadets walked in and rose quickly with a
broad smile to greet them.

"Steve!" he exclaimed, rounding the desk to shake hands with his old
friend. "I never dreamed we'd have you and the _Polaris_ unit at our
fair!" He nodded warmly to the cadets who stood at rigid attention. "At
ease, cadets. Glad to have you aboard."

"I was just as surprised to get this assignment, Mike," said Strong,
pumping the officer's hand. Nodding toward the men seated in front of
Hawks' desk, he apologized, "Sorry to bust in on you like this, old man.
Didn't know you were busy."

"It's quite all right." The commissioner smiled. "Just handing out a few
licenses for the concessions in the amusement section at the fair.
People expect to have a little fun when they go to a fair, you know. By
the stars, they're going to have it so long as I'm commissioner." He
turned to the cadets. "Sit down, boys. You too, Steve. I'll be with you
in a minute." He turned back to his desk and the waiting men.

The cadets, at a nod from Strong, sat down on a leather couch that
stretched the length of one wall and listened while Hawks completed his
business with the two men.

"There you are," said Hawks, applying the seal of his office to a slip
of paper. "That gives you the right to operate a concession in the
amusement area as long as the fair is open."

One of the men took the paper and glanced at it quickly.

"Wait a minute, Commissioner. This is over near the edge of the area,"
he complained. "We wanted to get in the middle. How do you expect us to
make any credits away out there by ourselves?" The man's tone was surly
and disrespectful.

"Sorry, but that's the only location left. In fact," Hawks added acidly,
"you're lucky to get it!"

"Really?" sneered the heavier of the two. "Well, I'm sure going to find
out about this!"

Hawks stood up and eyed the two men coldly. "I've been appointed
commissioner of this exposition by the delegates to the Solar Alliance
Council. I answer only to the council. If you have a complaint, then you
must present your case before that body." He cleared his throat and
glared at them from behind his desk. "Good day, gentlemen!" he said.

[Illustration: _Hawks stood up and eyed the two men coldly_]

The two men, who until now had been seated facing the desk, got up, and
after glaring at Hawks, turned and walked toward the door. Tom gasped,
and grabbing Roger by the arm, involuntarily pointed at the two men.

"Look, Roger--those men--" he whispered.

"Yeah," said Roger. "Those are the wise-guy space crawlers we met on the
monorail, the ones who called us punks!"

"How'd they get here so fast?" asked Astro.

"Must have taken a jetliner from Atom City, I guess."

Strong, who sat near Tom, heard the exchange between the cadets.

"You know those men?" he asked.

"Well--uh--not exactly, sir. We just had a little run-in with them on
the monorail returning from leave, that's all," said Tom. "Nothing
serious. They don't think much of the Solar Guard, though."

"I gathered as much," said Hawks dryly. He walked over from his desk. "I
hated to give them the license to operate, but I had to, since I had no
valid reason to turn them down. They have a good idea, too."

"That so? What is it?" asked Strong.

"They have an old chemical-burning space freighter in which they're
going to take fair visitors up for a short ride. You see, the big one,
Gus Wallace, is an old deep-space merchantman. The smaller one is Luther
Simms, a rocketman."

"Hm. Not a bad idea at all," mused Strong. "They should make out all
right."

With that, the two Solar Guard officers dropped the incident of Wallace
and Simms and turned to exchanging news of mutual friends and of what
each had been doing since their last meeting. Finally, as the
conversation was brought around to the exposition, Hawks got up and sat
on the side of the desk, facing Strong and the cadets. His eyes glowed
as he spoke.

"Steve," he said, "this is going to be the greatest gathering of minds,
thoughts, and ideas in the knowledgeable history of mankind! There are
going to be lectures from the greatest minds in the system on any and
all subjects you can think of. In one building we're going to build a
whole spaceship--a rocket cruiser--piece by piece, right in front of the
eyes of fair visitors. In another building we're going to have the
greatest collection of musicians in the universe, continuously playing
the most beautiful music, in a hall built to seat a half million people.
Industry, science, medicine, art, literature, astrophysics, space
flight, to say nothing of a comparative history exhibit designed to show
the people where our forefathers went off the track by warring against
each other. In fact, Steve, everything you can think of, and then more,
will be represented here at the exposition. Why, do you know I've been
working for three years, co-ordinating ideas, activity, and
information!"

Strong and the cadets sat transfixed as they listened to the
commissioner speak in glowing terms of the exposition, which, until this
time, by the cadets at least, had been considered little more than a
giant amusement park. Finally Strong managed to say, "And we thought the
_Polaris_ was going to be so big, it'd be the center of attraction." He
smiled.

Hawks waved his hand. "Look, I don't want to offend you or the boys,
Steve, but the fact is, the _Polaris_ is one of the _smaller_ exhibits!"

"I can see that now," answered Strong. "Tell me, Mike, just what do you
want us to do?"

"I'll answer that in two parts. First, I would like the cadets to set up
the _Polaris_, get her shining and bright, and with quiet courtesy,
answer any question anyone might ask concerning the ship, referring any
question they can't answer to the information center in the Space
Building."

"That's all, sir?" asked Tom incredulously.

"That's all, Corbett. You open the _Polaris_ at nine in the morning and
close her at nine at night. You'll be living aboard, of course."

"Yes, sir. Of course, sir."

"That sounds so simple," drawled Roger, "it might be tough."

"It will be tough, Manning," commented Hawks. "Don't fool yourself into
assuming otherwise."

"Don't worry about these boys, Mike. Now, what is part two?" Strong
asked.

Hawks smiled. "Here it is, Steve. The Solar Alliance has decided to open
the exposition with a simple speech made by a relatively unknown person,
but one who is deserving of such an honor. They left the choice of that
person up to me." He paused and added quietly, "I'd like you to make
that opening speech, Steve."

"Me!" cried Strong. "Me, make a speech?"

"I can't think of anyone more deserving--or dependable."

"But--but--" stammered the captain, "I can't make a speech. I wouldn't
know what to say."

"Say anything you want. Just make it short and to the point."

Strong hesitated a moment. He realized it was a great honor, but his
naturally shy personality kept him from accepting.

"Steve, it may make it easier for you to know," said Hawks teasingly,
"that there's going to be a giant capsule lowered into the ground which
will contain a record of every bit of progress made since the inception
of the Solar Alliance. It's designed to show the men of the future how
to do everything from treating a common cold to exploding nuclear power.
This capsule will be lowered at the end of your opening address. So,
most of the attention will be focused on the capsule, not you." The
commissioner smiled.

"All right, Mike," said Strong, grinning sheepishly. "You've got
yourself a speechmaker!"

"Good!" said Hawks and the two men shook hands.

Tom Corbett could contain himself no longer. "Congratulations, sir!" he
blurted out as the three cadets stood up. "We think Commissioner Hawks
couldn't have made a better choice!" His unit-mates nodded a vigorous
assent.

Strong shook hands with the cadets and thanked them.

"You want the cadets for anything right now, Mike?" asked Strong.

"Not a thing, Steve."

Strong turned back to the boys. "Better hop out to the spaceport and get
the _Polaris_ over the exposition site, cadets. Soon as you set her
down, clean her up a little, then relax. I'll be at the Galaxy Hotel if
you need me."

"Yes, sir," said Tom.

The cadets saluted sharply and left the office.

Arriving at the spaceport, they found the _Polaris_ stripped of her guns
and her galley stocked with food. The chief petty officer in charge of
the enlisted spacemen detail was roving through the passageways of the
rocket cruiser when Tom found him.

"Everything set, chief?" asked Tom.

"All set, Cadet Corbett," reported the elderly spaceman, saluting
smartly. He gave Tom a receipt for the list of the equipment that had
been removed from the ship and signed the logbook. Tom thanked him and
made a hurried check of the control deck, with Roger and Astro reporting
from the radar and power decks. With the precision and assurance of
veteran spacemen, the three Space Cadets lifted the great ship up over
the heart of the sprawling Venusian city and brought it down gently in
the clearing provided for it at the exposition site, a grassy square
surrounded on three sides by buildings of shimmering crystal walls.

No sooner had the giant ship settled itself to the ground, than a crew
of exposition workers began laying a slidewalk toward her, while another
crew began the construction of an aluminum staircase to the entrance
port in her giant fin.

Almost before they realized it, Tom, Roger, and Astro found themselves
busy with a hundred little things concerning the ship and their part in
the fair. They were visited by the subcommissioner of the exposition and
advised of the conveniences provided for the participants of the fair.
Then, finally, as a last worker finished the installation of a
photoelectric cell across the entrance port to count visitors to the
ship, Tom, Roger, and Astro began the dirty job of washing down the
giant titanium hull with a special cleaning fluid, while all around them
the activity of the fair buzzed with nervous excitement.

Suddenly the three cadets heard the unmistakable roar of jets in the
sky. Automatically, they looked up and saw a spaceship, nose up,
decelerating as it came in for a touchdown on a clearing across one of
the wide spacious streets of the fairgrounds.

"Well, blast my jets!" exclaimed Astro, his eyes clinging to the flaming
exhausts as the ship lowered itself to the ground.

"That craft must be at least fifty years old!"

"I've got a rocket-blasting good idea, Tom," said Roger.

The exit port of the spaceship opened, and the three cadets watched Gus
Wallace and Luther Simms climb down the ladder.

"Hey," yelled Roger, "better be careful with that broken-down old
boiler. It might blow up!"

The two men glared at the grinning Roger but didn't answer.

"Take it easy, Roger," cautioned Tom. "We don't want to start anything
that might cause us and Captain Strong trouble before the fair even
opens. So let's leave them alone."

"What are you afraid of?" drawled Roger, a mischievous gleam in his
eyes. "Just a little fun with those guys won't hurt." He stepped to the
side of the clearing and leaned over the fence separating the two areas.

"Tell me something, spaceman," he yelled to Wallace, who was busy with
some gear at the base of the ship, "you don't expect people to pay to
ride that thing, do you?" He smiled derisively and added, "Got insurance
to cover the families?"

"Listen, punk!" sneered Wallace, "get back over to your Solar Guard
space toy and keep your trap shut!"

"Now--now--" jeered Roger, "mustn't get nasty. Remember, we're going to
be neighbors. Never can tell when you might want to borrow some baling
wire or chewing gum to keep your craft together!"

"Look, wise guy, one more crack out of you, and I'll send you out of
this world without a spaceship!" snarled Wallace through grating teeth.

"Any time you'd like to try that, you know where I am," Roger snapped
back.

"Okay, punk! You asked for it," yelled Wallace. He had been holding a
length of chain and now he swung it at Roger. The cadet ducked easily,
hopped over the fence, and before Wallace knew what was happening,
jolted him with three straight lefts and a sharp right cross. Wallace
went down in a heap, out cold.

Luther Simms, who had been watching the affair from one side, now rushed
at Roger with a monkey wrench. With the ferocity of a bull, Astro roared
at the small spaceman, who stopped as if pulled up by a string. Roger
spun around, made an exaggerated bow, and smiling, asked, "Next?"

At this point, aware that things were getting a bit thick, Tom strode
across the clearing, and grabbing the still smiling Roger, pulled him
away.

"Are you space happy?" he asked, "You know you goaded him into swinging
that chain, Roger. And that makes you entirely responsible for what just
happened!"

"Yeah," growled Astro. "Suppose he had hit you with it, then what?"

Roger, still grinning, glanced over his shoulder and saw Simms helping
Wallace to his feet. He turned to Astro, threw his arm over the big
cadet's shoulder, and drawled, "Why, then you'd have just taken them
apart to avenge me! Wouldn't you, pal?"

"Aw, stow it," snapped Tom. For a second Roger looked at him sharply,
then broke into a smile again. "O.K., Tom, I'm sorry," he said. "O.K.,
let's get back to work," ordered Tom.

Back at the _Polaris_, as they continued cleaning the hull of the ship,
Tom saw the two men disappear into their craft, throwing dirty looks
back at the three cadets as they went.

"You know, Roger, I think you made a very bad mistake," he said. "One
way or another, they'll try to even the score with you."

"And it won't be just a report to Captain Strong," added Astro darkly.

Roger, cocky and unafraid, broke out his engaging grin again and
shrugged his shoulders.




CHAPTER 3


"... And so we dedicate this capsule to the civilizations of the future.
Those who may dig this cylinder out of the ground in ages to come will
find within it the tools, the inventions, and the scientific wonders
which have made the era of the Solar Alliance one of peace and lasting
prosperity."

Captain Steve Strong paused, glanced at the huge crane and the
shimmering steel capsule that dangled at the end of a cable, then called
out, "Lower the capsule!"

The cheers of a hundred thousand people massed in the exposition plaza
greeted the order. The stereo camera and teleceiver scanners that were
sending the opening ceremonies of the Solar Exposition to all parts of
the Alliance moved in to focus on the capsule as it was lowered into a
deep, concrete-lined pit.

The three members of the _Polaris_ unit, standing to one side of the
platform, joined in the cheers as their skipper shook hands with the
delegates and waved again and again at the roaring crowd.

"That was some speech, Tom," commented Roger. "I wonder who wrote it for
him?"

"He wrote it himself, Roger," replied Tom.

"Ah, go on," scoffed Roger.

"Sure he did," said Astro indignantly. "He sweated over it for nearly a
week."

"Here he comes," said Tom. The three cadets watched Captain Strong,
resplendent in his dress gold-and-black uniform, fight his way off the
platform, shaking hands with congratulating strangers along the way.

"Congratulations, Captain Strong," said Tom with a smile.

"That was swell!" Roger and Astro chorused their agreement.

"Thanks, boys," gasped Strong. "But let me tell you, I never want to do
that again. I was never so scared in my life!"

"Just making a speech?" asked Roger. "After all the lectures you've
given at Space Academy?"

"They weren't before teleceiver and stereo cameras." Strong laughed. "Do
you realize this ceremony is being seen on Mars, Earth, and all the
colonized moons, clear out to Titan."

"Wow!" breathed Astro. "That would make me tongue-tied!"

"Huh! All that to stick a metal box into the ground," snorted Roger.

"It's not the capsule, Roger," said Tom. "It's what's inside the
capsule."

"Right, Tom," said Strong. "Inside that capsule scientists have packed
the whole history of man's march through the stars. They've included
scientific formulas, medical, cultural, and industrial facts. Everything
we know. Even some things that are known by only a handful of the most
trusted men in the universe!" Strong stopped suddenly and laughed.
"There I go, making another speech! Come on. Let's get out of here," he
cried.

"Do we start showing people through the _Polaris_ now, sir?" asked
Astro.

"In the morning, Astro," replied Strong. "Tonight there's a big Solar
Alliance banquet. You three are invited, too."

"Er--" stammered Roger, "you mean--a banquet--with--uh--?"

Strong laughed. "More speeches? I'm afraid so, Manning. Of course
there'll be plenty of food."

"Well, it's not that we're against speeches," ventured Astro.

"Not yours anyway, sir," added Tom hastily. "But what we mean, sir, is
that--"

Strong held up his hand. "I understand perfectly. Suppose you stay here
on the exposition grounds. Have a look around. See the sights, have some
fun."

_"Yes, sir!"_ The boys chorused their reply.

"Just don't spend all your credits at the first booth," continued
Strong. "And watch that Venusian cloud candy. It's good, but murder on
the Earthman's stomach."

"Captain Strong!" A voice called from the platform above. It was one of
the Venusian delegates. "They want some pictures of you!"

"Be right there, sir," replied Strong. He turned to the boys and smiled.
"You're lucky you don't have to go through this. See you aboard ship
later." Spinning quickly on his heel, he made his way back through the
crowd to the platform.

"What a great guy," sighed Tom.

"Sure is," agreed Astro.

"Well, fellas," announced Roger, "we've got twelve hours liberty and a
small scale model of the whole solar system to have fun in! What're we
waiting for?"

Fighting their way through the crowds in the plaza, the three boys
finally reached the amusement area where they wandered among gaily
colored booths and plastic tents, their eyes lighting up with each new
attraction.

Two hours later, stuffed with spaceburgers and Martian water, their arms
loaded with assorted prizes, won by Astro's prowess in the
weight-lifting booth, Tom's skill as a marksman, and Roger's luck at the
wheels of chance, the cadets wearily returned to the Polaris.

As they neared their section of the fair site they heard a harsh voice
appealing to a small crowd around the stand in front of Wallace and
Simms' spaceship. A huge sign spelled out the attraction: RIDE IN
SPACE--ONE CREDIT.

Luther Simms, a bamboo cane in one hand, a roll of tickets in another,
was hawking his attraction to the bystanders.

"Step right up, ladies and gentlemen! Step right up! It's a thrill of a
lifetime, the greatest sensation of the entire exposition. Ride a rocket
ship, and all this for one credit! A lone, single credit, ladies and
gents, will buy you a pathway to the stars! Step right up--"

In laughing groups, the crowd around the stand began to purchase tickets
and climb aboard the old freighter.

The three cadets watched from the outer edge of the crowd.

"Hey, fellas," said Roger suddenly, "whaddya say we go?"

"What?" gulped Astro. "On that thing?"

"Why not?" urged Roger.

"But that hulk should have been shipped back to the scrap furnace years
ago!" Tom protested.

"So what, Junior?" drawled Roger. "Scared?"

"Don't be silly," replied Tom. "But with all the other things to do
here, why should we--"

"Oh," said Astro, nudging Tom, "now I get it!"

"You get what?" asked Roger innocently.

"Those girls," said Astro. "They're just climbing aboard."

Glancing at the air lock, Tom saw three young and pretty girls file into
the ship. "Oh, so that's it, huh?" he said, looking quizzically at his
unit-mate.

[Illustration: _Tom saw three pretty girls board the ship_]

The blond cadet's eyes were wide with mock surprise.

"Girls? Well, what do you know about that? I never noticed!"

"Yeah, I'll bet you didn't!" said Tom.

"Well, they _are_ trim little space dolls. And there are three of them!"

"Come on, Astro," sighed Tom. "We have to give the little boy his fun."

They walked toward the stand where Simms was still making his pitch to
the crowd.

"Just five more seats left, ladies and gentlemen, only five chances to
blast into space ..."

Tom stepped up and put three credits on the counter. "Three, please," he
said.

Simms looked down and suddenly stopped his harangue. His eyes narrowed
with suspicion as he saw the three cadets standing before him.
Hesitating, he glanced around, seemingly looking for help. Then,
shrugging his shoulders, he handed over the tickets and turned to the
crowd. "Three tickets for the Space Cadets, who live out there in space.
Just can't stay away from it, eh, boys?"

"I only hope that tub of yours holds together," said Tom.

Simms snarled out of the side of his mouth, "Shut up, wise guy!" And
then continued aloud, "Yes, Space Cadet, I agree with you. Everyone
should take a trip into space."

Tom started to protest, but then shrugged his shoulders and followed
Roger and Astro into the ship. On the stand, Simms continued his appeal
to the crowd.

"Just two more tickets left, ladies and gentlemen! Who'll be the lucky
two?"

Suddenly Gus Wallace appeared from behind the ship and approached the
stand, calling, "Hey, Simms!"

Simms stopped speaking and turned to his partner. "Yeah?"

"Everything's all set. Let's blast off!"

"I'll be with you as soon as I sell the last two tickets," said Simms.
"Here you are, ladies and gents, the last two--"

Wallace grabbed him by the arm and yanked him from the stand. "I said we
blast off, you idiot! You want to risk everything for two lousy
credits?"

"O.K., O.K. Don't blow a fuse!"

Simms quickly closed the stand, turned out the lighted sign, and
followed Wallace into the old freighter. He then collected the tickets
and made sure all the passengers were strapped into their acceleration
chairs and finally went below to the power deck. Wallace disappeared
into the control room and seconds later his voice was heard over the
ship's intercom gruffly announcing the blast-off. The lights in the
cabin dimmed, the air was filled with a low whining hiss, and for an
instant the old ship bucked and groaned. Suddenly, with a loud explosive
roar, she blasted into the sky and began a sluggish arching climb into
space.

"All right, fellas," said Roger, after the force of acceleration eased
off, "let's try a little encircling maneuver on those girls up ahead."

"Oh, no, Roger," answered Tom. "You're flying solo on that project!"

"Yeah, you go ahead, Romeo." Astro laughed. "I'd like to see the Manning
technique in action."

A loud explosion suddenly rocked the spaceship.

"What was that?" cried Roger. "Maybe this old tub won't make it after
all!"

Astro smiled. "This is a chemical burner, remember? Her initial
acceleration isn't enough. They have to keep blasting her to make
speed."

"Oh, sure," drawled Roger, relaxing again and watching the girls ahead.
"Well, here I go!" He got up and lurched down the aisle running between
the seats.

"Hey there!" roared Simms, who had suddenly appeared at the power-deck
hatch. "Keep your seat!"

"Who, me?" asked Roger.

"Not your Aunt Tilly, wise guy! Sit down and shut up!"

"Listen," said Roger, "you don't seem to realize--"

"I realize you're going to sit down or else!" snarled Simms.

Roger retreated to his seat and sat down. "Ah, go blast your jets," he
grumbled as Simms continued up the aisle to the control deck.

Tom and Astro doubled over with laughter. "Welcome back, Roger,"
bellowed the big Venusian. "I don't think those girls are the sociable
type, anyway."

"Wouldn't you know," moaned Roger, "that space creep had to show up just
when I had the whole campaign laid out in my mind." He gazed sadly at
the pert heads of the girls in front of him.

Tom gave Astro a wink. "Poor Manning. All set to go hyperdrive and ran
into space junk before he cleared atmosphere."

Suddenly another explosion racked the ship and the rockets cut out all
together. The passengers began to look around nervously.

"By the craters of Luna, what was _that_?" demanded Tom, looking at
Astro.

"The rockets have cut out," answered the Venusian. "Hope we're out in
free fall, beyond the pull of Venus' gravity."

The forward hatch of the passenger cabin opened and Simms reappeared
followed by Wallace.

"Take it easy, folks," said Wallace, "nothing to get excited about.
We're in free fall, holding a course around the planet. So just sit back
and enjoy the view!"

A chorus of sighs filled the cabin and the passengers began laughing and
chatting again, pointing out various sights on the planet below them.
Smiling, Wallace and Simms marched down the aisle. Suddenly Roger and
Tom rose and blocked their path.

"What's up, Wallace?" demanded Tom.

Wallace gave the two boys a hard look. "So it's you, huh? You got a lot
of nerve coming aboard this ship."

"If there's something wrong, Wallace," said Tom, "maybe we could give
you a hand."

"Get back in your seats," ordered Wallace. "We don't need any cadet
squirts getting in our way!"

"Why, you overweight space jockey," snapped Roger, "we know more about
spaceships than you'll ever learn!"

"One more crack out of you and I'll blast your ears off!" roared
Wallace. _"Now sit down!"_

Roger's face turned a deep red and he moved toward Wallace, but Tom put
out a restraining hand.

"Take it easy, Roger," he said. "Wallace is the skipper of this boiler.
In space he's the boss."

"You bet I'm the boss," snarled Wallace. "Now keep that loud-mouthed
punk quiet, or I'll wipe up the deck with him and send the pieces back
to Space Academy!"

"Hey, Wallace," yelled Simms, who had walked away when the argument
started. "Come on. We gotta fix that reactor unit!"

"Yeah--yeah," Wallace called back. He turned to Roger again. "Just
remember what I said, cadet!" Brushing the boys aside, he strode down
the aisle to join Simms.

As the two men disappeared through the power-deck hatch, Tom turned to
Roger and tried to calm him down. "Skippers are skippers, Roger, even
aboard a piece of space junk!"

"Yeah," growled Roger, "but I don't like to be called a squirt or a
punk! Why, I know more about reactor units than--"

"Reactor units?" broke in Astro from his seat.

"Yeah. Didn't you hear what Simms said?"

"But this is a chemical burner," said Astro. "Why an atomic reactor unit
aboard?"

"Might be a booster for extra speed," offered Tom. "And more power."

"On a simple hop like this? Hardly out of the atmosphere?" Astro shook
his head. "No, Tom. It doesn't make sense."

"Well," chimed in Roger, "here's something else I've been wondering
about. They charge one credit for this ride. Which makes a total of
about fifty credits for a capacity load--"

"I get you," Tom interrupted. "It costs at least two hundred credits in
fuel alone to get one of these chemical jalopies off the ground!"

Roger looked at Tom solemnly. "You know, Tom, I'd certainly like to know
what those guys are doing. You just don't hand out free rides in space."

"How about snooping around?" asked Astro.

Tom thought a moment. "O.K. You two stay here. I'll go aft and see what
they're doing."

Tom walked quickly to the stern of the ship, entered the power-deck
hatch, and disappeared. Astro and Roger, each taking one side of the
ship, strained for a look from the viewports. In a few minutes Tom
returned.

"Spot anything?" asked Roger.

"I'm not so sure," answered Tom. "They weren't on the power deck and the
cargo hatch was locked. I looked out the stern viewport, but all I could
see was a thick black cloud."

"Well, that's no help," said Roger. Suddenly the blond cadet snapped his
fingers. "Tom, I'll bet they're smugglers!"

"What?" asked Tom.

"That's it," said Roger. "I'll bet that's it. The concession is just a
phony to cover up their smuggling. It lets them take a load of stuff up
without a custom's search. Then, when they're far enough out--"

"They dump it," supplied Astro.

"Right!" agreed Tom finally. "What better place to hide something than
in space?"

"For someone else to pick up later!" added Roger triumphantly.

When Wallace and Simms returned, the three cadets were busy looking out
the viewports. And later, when the spaceship was letting down over the
exposition grounds, Tom commented on the ease with which the ship made
her approach for a touchdown.

"Roger," asked Tom quietly, "notice how she's handling now?"

"How do you mean?" asked Roger.

"Going out," said Tom, "she wallowed like an old tub filled with junk.
Now, while she's no feather, there's a big difference in the way she's
maneuvering!"

"Then they did dump something in space!" said Roger.

"I'm sure of it!" said Tom. "And from now on, we're going to keep our
eyes open and find out what it is!"




CHAPTER 4


Tom glanced at the astral chronometer over the control board of the
_Polaris_ and sighed with relief. It was nine P.M. He turned to the
intercom.

"Attention, please! Attention, please! The exhibit is now closing for
the night. All visitors will kindly leave the ship immediately." He
repeated the announcement again and turned to smile at the last
lingering youngster ogling him before being yanked toward an exit by a
tired and impatient mother.

The hatch to the radar bridge opened and Roger climbed down the ladder
to flop wearily in the pilot's seat in front of the control panel.

"If one more scatterbrained female asks me how the astrogation prism
works," groaned the blond cadet, "I'll give it to her and let her figure
it out for herself!"

Astro joined them long enough to announce that he had made sandwiches
and brewed hot chocolate. Tom and Roger followed him back to the galley.

Sipping the hot liquid, the three cadets looked at each other without
speaking, each understanding what the other had been through. Even
Astro, who normally would rather talk about his atomic engine than eat,
confessed he was tired of explaining the functions of the reaction fuel
force feed and the main valve of the cooling pumps.

"The worst of it is," sighed Astro, "they all pick on the same valve.
What's so fascinating about one valve?"

Tom's job on the control deck was less tiring, since his was more of a
command post, which demanded decisions, as conditions arose, rather than
a fixed routine that could be explained. But even so, to be asked over
and over what the astral chronometer was, how he could read time on
Earth, Mars, Venus, Titan, Ganymede, and all the satellites at the same
time was wearing on the toughest of young spirits.

Eager to forget the grueling day of questions and answers, the cadets
turned their thoughts to the mysterious midnight activity that had been
taking place around the spaceship concession during the last ten days.

"I just can't figure out what those guys are up to," said Roger, blowing
on his hot chocolate. "We've watched those guys for over a week now and
no one has even come near them with anything that could be smuggled."

"Could be a small package," suggested Astro, his mouth full of ham
sandwich. "Somebody could take a ride and slip it to them."

"Hardly," said Tom. "Remember, that ship blasts off like she's loaded to
the nose with cargo. And then she comes back like a feather. You can
tell by the sound of her jets. So it wouldn't be anything small enough
for someone to carry."

"Yeah, I guess you're right," agreed Astro.

"Well," said Tom finally, "I'm stumped. I think the only thing left to
do is to decide if it's anything important enough to tell Captain Strong
about. Working on the _Polaris_ twelve hours a day and staying up all
night to watch those two jokers has me all in."

Roger and Astro looked at each other and then silently nodded their
agreement.

"O.K.," said Tom, "we'll go to the skipper's hotel in Venusport and tell
him the whole thing. Let's see what he makes of it."

       *       *       *       *       *

At that moment Captain Strong was in the office of Exposition
Commissioner Mike Hawks trying to make sense out of a series of reports
that had landed on the commissioner's desk. Hawks watched him carefully
as he studied the papers.

"You say this is the ninth report you've received since the fair opened,
Mike?" asked Strong finally.

Hawks nodded. He hadn't known whether to laugh off or seriously consider
the nine space skippers' reports that the sky over the exposition site
was dirty.

"Yes, Steve," he said. "That one came from the skipper of an express
freighter. He blasted off this morning and ran through this so-called
dirt. He thought it was just a freak of nature but reported it to be on
the safe side."

"I don't suppose he took a sample of the stuff?"

"No. But I'm taking care of that," replied Hawks. "There's a rocket
scout standing by right now. Want to come along?"

"Let me finish these reports first."

"Sure thing."

As Strong carefully checked each report, Commissioner Hawks rose and
began to stride restlessly back and forth across the spacious office. He
stopped in front of the window and stared out over the exposition
grounds, watching the thousands of holiday visitors streaming in and out
of the buildings, all unaware of the strange mystery in the sky above
them. Hawks' attention was drawn to the giant solar beacon, a huge light
that flashed straight out into space, changing color every second and
sending out the message: "Quis separabit homo"--Who shall separate
mankind?

This beacon that at the beginning of the exposition had reached into the
black void of space like a clean bright ray was now cloudy and
murky--the result of the puzzling "dirty sky."

"All right, Mike," Strong announced suddenly. "Let's go."

"Get anything more out of those reports?" asked Hawks, turning back to
his desk.

"No," replied the Solar Guard officer. "They all tell the same story.
Right after blast-off, the ships ran into a dirty sky."

"Sounds kind of crazy, doesn't it?"

"Crazy enough to check."

Hawks pressed a button on the desk intercom.

"Yes, sir?" replied a metallic voice.

"Have the rocket scout ready for flight in five minutes," Hawks ordered.
He snapped off the intercom without waiting for a reply and turned to
Strong. "Let's go, Steve."

The two veteran spacemen left the office without further comment and
rode down in the vacuum elevator to the highway level. Soon they were
speeding out to the spaceport in Hawks' special jet car.

At the blast-pitted field they were met by a young Solar Guard officer
and an elderly man carrying a leather case, who were introduced as
Lieutenant Claude and Professor Newton.

While Claude prepared the rocket scout for blast-off, Strong, Hawks, and
Newton discussed the possibility of lava dust having risen to great
heights from another side of the planet.

"While I'm reasonably sure," stated Newton, "that no volcano has erupted
recently here on Venus, I can't be sure until I've examined samples of
this so-called dirt."

"I'll have Lieutenant Claude contact the University of Venus," said
Hawks. "Their seismographs would pick up surface activity."

Claude stuck his head out of the hatch and reported the ship ready for
blast-off. Strong followed the professor and Hawks aboard and strapped
himself into an acceleration chair. In a moment they were blasting
through the misty atmosphere of Venus into the depths of space.

Fifteen minutes later, Hawks and Strong were standing on the hull of the
ship in space suits, watching the professor take a sample of a dirty
black cloud, so thick it was impossible to see more than three feet.
Strong called to the professor through the spacephone.

"What do you make of it, sir?" he asked.

"I wouldn't want to give you a positive opinion without chemical tests,"
answered the professor, his voice echoing in Strong's fish-bowl helmet.
"But I believe it's one of three things. One, the remains of a large
asteroid that has broken up. Two, volcanic ash, either from Venus or
from Jupiter. But if it came from Jupiter, I don't see how it could have
drifted this far without being detected on radar."

Now, holding a flask full of the black cloud, the professor started back
to the air lock.

"You said three possibilities, professor," said Strong.

"The third," replied the professor, "could be--"

The professor was interrupted by Lieutenant Claude calling over the
intercom.

"Just received a report from the University of Venus, sir!" said the
young officer. "There's been no volcanic activity on Venus in the last
ten years serious enough to create such a cloud."

Strong waited for the professor's reaction, but the elderly man was
already entering the air lock. Before Strong and Hawks could catch up to
him, the air-lock hatch slammed closed.

"Hey," exclaimed Strong, "what does he think he's doing?"

"Don't worry about it, Steve," replied Hawks. "He probably forgot we
were out here with him, he's so concerned about this dirt. We'll just
have to wait until he's out of the air lock."

The Solar Guard officer nodded, then looked around him at the thick
black cloud that enveloped the ship. "Well," he said, "one of the
professor's theories has been knocked out."

"Yes," replied Hawks. "Which means this stuff is either the remains of a
large asteroid or--"

"The third possibility," finished Strong, "which the professor never
explained."

Suddenly the air-lock hatch opened again and the two spacemen stepped
inside. Closing the hatch behind them, they waited until the pressure
was built up again to equal that of the ship, and then they removed
their helmets and space suits.

[Illustration: _The hatch opened again and the two spacemen entered the
air lock_]

Leaving the air lock and walking down the companionway, Hawks suddenly
caught Strong by the arm.

"Have you considered the possibility of this cloud being radioactive,
Steve?" he asked.

Strong nodded slowly. "That's all I've been thinking about since I first
heard about it, Mike. I think I'd better report this to Commander
Walters at Space Academy."

"Wait, Steve," said Hawks. "If you do that, Walters might close the
exposition. Wait until you get a definite opinion from Professor
Newton."

Strong considered a moment. "I guess a few more minutes won't make a lot
of difference," he said finally. He realized how important the
exposition was to his old friend. But at the same time, he knew what
would happen if a radioactive cloud suddenly settled on the city of
Venusport without warning. "Come on. Let's see what the professor has to
say about this stuff."

They found the professor on the control deck bending over a microscope,
studying samples taken from the flask. He peered intently into the
eyepiece, wrote something on a pad, and then began searching through the
pages of a reference book on chemicals of the solar system.

Lieutenant Claude stepped up to Hawks and saluted sharply. "Power deck
reports they've got a clogged line, sir. It's in the gas exhaust."

Strong and Hawks looked at each other, and then Hawks turned to the
young officer. "Send a couple of men outside to clear it."

"Aye, aye, sir," said Claude, and then hesitated. "Shall the men wear
lead suits against possible radioactivity, sir?"

Before Hawks could answer, Newton turned to face the three men. The
professor was smiling. "No need to take that precaution, Lieutenant. I
never did tell you my third opinion, did I, Captain Strong?"

"Why, no, you didn't, sir," said Strong.

The professor held up a sheet of paper. "Here's your answer. Nothing but
plain old Venusport topsoil. Pure dirt!"

"What?" exclaimed Hawks hastily, reaching for the paper.

"Well, blast me for a Martian mouse," muttered Strong under his breath.
"But how?"

Newton held up his hand. "Don't ask me how it got here. That isn't my
line of work. All I know is that, without a doubt, the black cloud is
nothing more than dirt. Plain ordinary dirt! And it comes from the area
in and around Venusport. As a matter of fact, certain particles I
analyzed lead me to believe it came from the exposition site!"

Hawks looked at Newton dumbfounded. "By the craters of Luna, man, we're
a thousand miles over the exposition!"

The professor was stubborn. "I can't tell you how it got here,
Commissioner Hawks. But I do know it's Venusian dirt. And that's final!"

Hawks stared at the elderly man for a second, still bewildered. Then he
suddenly smiled and turned to Claude. "As soon as that exhaust is
cleared, blast off for Venusport, Lieutenant. I'm going to find out who
dirtied up the sky!"

       *       *       *       *       *

Two hours later, when Captain Strong returned to his hotel in Venusport
with Mike Hawks, he was surprised to see the three cadets of the
_Polaris_ crew slumped, sleepy-eyed, on a couch in the lobby.

"What are you doing here, boys?" he asked.

The three cadets came to attention and were wide awake immediately. Tom
quickly related their suspicions of Wallace and Simms.

"And we've watched them every night, sir," Tom concluded. "I don't know
what it is, but something certainly is going on in that shack they use
for an office."

"Yes, sir," agreed Astro, "and no one is going to fool me about a rocket
ship. I know when they blast off loaded and return light."

Strong turned to Hawks who said quietly, "Wallace and Simms are the only
ones in this whole area that blast off regularly without a customs
search."

"You mean," stammered Strong, "Wallace and Simms are dumping"--he could
hardly say the word--"_dirt_ in space?"

"They have a ship. The cadets say the ship blasts off loaded and returns
light. And we've got the sky full of dirt. Venusian dirt!"

"But why?"

"I suggest we go out to the exposition grounds right now and ask them!"
said Hawks coldly. "And believe me, they'd better have some
rocket-blasting good answers!"




CHAPTER 5


The great educational exhibits had long been closed and only a few
sections of the amusement park of the big exposition remained open. The
giant solar beacon, its brilliant colors changing every second,
maintained a solemn solitary watch over the exhibition buildings, while
here and there groups of fair visitors wandered wearily back to their
hotels.

There was a sudden flurry of activity at the space-ride concession. Gus
Wallace and Luther Simms tumbled out of the shack and raced into their
ship. Once inside the ancient craft, they secured the hatch and turned
toward each other smiling broadly. Wallace stuck out his hand.

"Put 'er there, Simms. We did it!"

The two men shook hands heartily.

"By the craters of Luna," said Simms, "I thought we'd never make it! And
if we did, that it wouldn't be there!"

"But it was, Simms! It was! And now we've got it!"

"Yeah," agreed the other. "I never worked so hard in all my life. But
it's worth it. Are we going to set the Solar Guard back on its ear!"

Wallace laughed. "Not only that, but think of what the boss will say
when we show up with it!"

"You know, Wallace," said Simms, a sly look on his face, "we could take
it and use it ourselves--"

"Don't even think a thing like that!" snapped Wallace.

"Oh, of course not," said Simms hurriedly. "It doesn't pay to cross the
boss. There's enough here for all of us."

"You know," mused Wallace, "there's only one thing I regret."

"What's that?" asked his partner.

"That I didn't get a chance to kick the space dust out of that punk,
Cadet Manning!"

"Forget him," said Simms, waving his hand. "You'll meet him again
someday. Besides, why think about him, when you've got the whole
universe at your finger tips?"

"You're right. But someday I'm going to catch him and tear him apart!"
snarled Wallace. "Come on. We've got to change over to atomic drive on
this baby. I don't want to hang around here any longer than I have to."

"Yeah," said Simms. "Be pretty stupid if we're caught now!"

The two men climbed down into the power deck and began the job of
refitting the freighter from chemical to atomic drive. Having already
outfitted the vessel with atomic engines, it was a simple matter to
change the exhaust, reset the feed lines, and emplace the protective
lead baffles. In an hour the two spacemen were ready to blast off.

"There she is," said Simms, standing back to survey their work. "As fast
as anything in space, except the Solar Guard cruisers on hyperdrive."

"O.K.," said Wallace. "Let's get out of here!"

Minutes later, in a jet car speeding along the main highway toward the
exposition grounds, Captain Strong, Mike Hawks, and the three cadets of
the _Polaris_ saw a rocket ship blast off. They watched it disappear
into the dark space above.

"That might be they," said Strong to Hawks. "I'd better alert the patrol
ship near the space station and tell them to pick them up."

"That couldn't be Wallace and Simms, sir," said Astro.

"How do you know, Astro?" asked Strong.

"That was an atomic-powered ship. The wagon Wallace and Simms have is a
chemical job. I know the sound of her jets almost as well as I do the
_Polaris_."

Hawks looked at Strong.

"You can depend on Astro's opinion, Mike," said Strong. "He was born
with a rocket wrench in his hand and cut his teeth on a reactor valve."

They soon reached the outskirts of the exposition grounds and were
forced to slow down as they wound their way through the darkened
streets. In the amusement section, the last of the whirlaway rides and
games of chance had closed down and only the occasional roar of a caged
animal in the interplanetary zoo disturbed the night.

Hawks drove the low, sleek jet car around the fair, taking a short cut
through the outdoor mercuryball field and pulled up in front of the
_Polaris_.

The five spacemen turned toward the concession site across the promenade
and stopped, aghast.

"Gone!" exclaimed Strong. "Astro, you made a mistake! It was their ship
we saw blasting off. It's too late to warn the space-station patrol.
Wallace and Simms could be anywhere in space now!"

"But, sir," protested Astro, "I'm certain that an atomic-powered ship
blasted off. And their old freighter was a chemical burner!"

"Well," said Hawks resignedly, "they're not here."

"Come on," said Strong, getting out of the jet car. "Let's take a look
around."

Strong and Hawks hurried across the street to the empty lot and the
three cadets followed.

"Take it easy, Astro," said Tom, when he saw the big Venusian gripping
his fists in frustration. "Anyone could make a mistake."

"That's just it," said Astro. "I'm not mistaken! Those jokers must have
changed over from chemical fuel to reactant drive!"

"But why?" asked Roger. "That would cost more than they could make in
ten years of hauling passengers on joy rides!"

Astro whirled around and faced the two cadets. "I'm telling you the ship
that blasted off from here was an atomic drive. I don't know any more
than that, but I _do_ know that!"

There was a sudden shout from Strong and the three boys hurried to the
shack. The Solar Guard captain and the exposition commissioner were
standing inside and playing the beam of an electric torch around the
walls.

"Looks as though you were right about the atomic drive, Astro," said
Strong. He flashed the light into one corner where a tangled jumble of
lines lay on the floor. "That's feed-line gear for a chemical burner,
and over there"--he played the light on some empty cartons--"is what's
left of the crate's lead baffling it shipped in. They must have changed
over to atomic drive recently."

Astro accepted the statement with a nod. It wasn't in the nature of the
big cadet to boast. Now that the secret of the ship had been resolved,
he turned, like the others, to the question of why?

"I think the best thing we can do," said Strong, "is to spread out and
search the whole area. Might find something to indicate where they
went." Commissioner Hawks nodded his head in agreement.

While Tom, Roger, and Astro searched outside, Strong and Hawks went
through the drawers of the dusty desk standing in one corner.

"Nothing here but a record of the flights they made, bills for chemical
fuel delivered, and the like," said Hawks at last. "They were losing
money on the operation, too. Think they might have just gotten fed up
and pulled out?"

Strong was rummaging around in one corner of the shack. "I'd go along
with that, but for one thing, Mike," he said. "Take a look at this." He
held up a small cloth bag. "There's dirt in the bottom of this bag. And
there are about fifty more bags in that corner."

"Dirt!" exclaimed the commissioner.

"Yep," said Strong grimly. "So we found out who was dumping the dirt.
But we still haven't found out why."

"Or where it came from," said Hawks.

Strong tossed the bag into the corner. "Well, I guess I'd better make a
report to Commander Walters."

Hawks moved to the corner where the pile of chemical feed-line equipment
lay on the floor. "Want to take a look at this stuff? Might be something
important in it."

Strong thought a moment. "We can have the cadets do that. I want to get
this report off to Walters right away, and issue an order to pick up
Wallace and Simms."

"On what charges, Steve?" asked the commissioner. "I mean, what's wrong
with what they've done?" The commissioner's question was based on one of
the cardinal rules among all Solar Guard officers of authority. "Has the
man committed any crime?"

Steve realized this and answered slowly. "They've changed over to
reactor drive without a license or permission. That's a violation of the
space code, section twenty-one, paragraph A. That is punishable by a
suspension of space papers, and if the intention proved to be willful
neglect of the code, a year on a penal asteroid. I think we can get them
on that."

The captain stepped to the door and called the cadets.

"Find anything?" he asked, when they entered the shack.

"Nothing, sir," replied Tom. "Except more evidence that they changed
over to atomic drive."

"That's enough" said Strong. "I'm going to send a report to Commander
Walters. Is the teleceiver on the _Polaris_ hooked up, Roger?"

"Yes, sir," replied Roger. "But Astro will have to start up the
auxiliary generators to give you power."

"Very well, then," said Strong. "Corbett, you give Astro a hand on the
power deck. And while we're gone, Manning, you go through that feed-line
junk there in the corner and see if there's anything important in it!"

"Aye, aye, sir," replied Roger.

Strong and Hawks, followed by Tom and Astro, left the shack and hurried
to the _Polaris_.

On the power deck, Tom and Astro made the necessary connections on the
generator, and in a few minutes, as power surged through the ship,
Strong flipped on the teleceiver.

"Attention! Attention! This is Captain Strong on the _Polaris_ calling
Commander Walters at Space Academy! Earth emergency circuit, priority
B--"

In a few moments the Solar Guard officer's call had been picked up by a
monitor station on Earth and relayed directly to Space Academy.
Commander Walters was roused out of bed, and when he appeared on the
teleceiver screen, Strong saw he was still in sleeping dress.

"Sorry to disturb you, sir," said Strong, "but something has come up
here at the exposition that needs your immediate attention."

"That's quite all right, Steve," said the commander with a smile. "What
is it? Manning get into more trouble?"

"No, sir," answered Strong grimly. "I wish it were as simple as that."
He quickly related the details of the strange dirt cloud and his
suspicions of Wallace and Simms. Walters' expression grew serious.

"I'll get out an emergency bulletin on them at once, Steve. Meantime,
you have full authority to head an investigation. Use any service you
need. I'll confirm my verbal order with official orders at once. Get on
this thing, Steve. It sounds serious."

"I will, sir, and thanks!" said Strong.

"End transmission!"

"End transmission," returned Strong, flipping off the teleceiver and
turning to the ship's intercom. "Attention, power deck! Corbett, you and
Astro go back to the shack and give Roger a hand. I'm going to work with
the commissioner here setting up search operations."

"Aye, aye, sir," replied Tom from the power deck.

The two cadets hurriedly closed the power units and left the ship.

"Did you hear what Captain Strong said, Astro?" asked Tom. "Search
operations."

"I wonder what's up," the big Venusian remarked. "They don't set up
search operations unless it's awfully serious!"

"Come on," urged Tom. "Maybe Roger's found something."

They entered the shack together and Tom called out, "Say, Roger, Captain
Strong just spoke to Commander Walters at the Academy and--"

The curly-haired cadet stopped short. "Astro, look!"

"By the rings of Saturn!" exclaimed the big cadet.

The two cadets stood gaping at a huge hole in the middle of the room.
The wooden floor was splintered around the edges of the opening and
several pieces of the chemical feed-line equipment lay close to the
edge, with trailing lines leading down into the hole. They heard a low
moan and rushed up to the hole, flashing their lights down into it.

"Great galaxy!" yelled Tom. "Astro, look! It's a shaft! It must be a
thousand feet deep!"

"And look!" bellowed Astro. "There's Roger! See him? He's hanging there!
His foot's caught in that feed-line cable!"

The big cadet leaned over the hole and shouted, "Roger! Roger! Are you
all right?"

There was no answer from the shaft. Nothing but the echo of Astro's
voice.




CHAPTER 6


"Easy, Astro," said Strong, standing behind the big cadet. "Pull that
line up slowly and gently."

"Yes, sir," gasped Astro. He didn't have to be told to pull the rope
with caution. He knew only too well that the slightest jar or bump
against the side of the shaft might dislodge Roger's unconscious body
from the tangle of line, causing him to fall to the bottom of the shaft.
How far down the shaft went, none of the anxious spacemen around the
hole in the splintered floor knew. And they didn't want to use Roger's
body to find out!

"I'll give you a hand, Astro," said Commissioner Hawks. He reached for
the line, but the big cadet warned him away.

"That's all right, sir," he said. "He's almost up now."

Astro pulled gently, hand over hand, until Roger's limp body was a mere
foot from the edge.

"Grab him, quick!" he panted.

Immediately Strong and Hawks were down on their knees at the edge of the
hole. Each taking an arm, they pulled Roger out and laid him gently on
the floor of the shack. They crouched over him and began a quick
examination.

"How is he, sir?" asked Tom, hovering anxiously over the still form of
his friend. "Will he be all right?"

Strong didn't answer for a moment, continuing his hurried, though
careful check. Then he sat back on his heels and sighed in relief. "A
few bruises but no broken bones, thank the universe. He's just suffering
from shock. A day or so in sick bay and he'll be good as new."

"I'll take him over there right away, Steve," offered Hawks.

"Thanks, Mike," replied Strong. Then as he and the commissioner lifted
the still form of the cadet and started to carry him out of the shack,
he turned to Astro. "Blast over to the _Polaris_ and call Solar Guard
headquarters in Venusport. Tell them to send an emergency crew down here
right away."

"Aye, aye, sir," snapped the big Venusian and dashed out of the shack.

Turning back to Hawks, Strong said, "Corbett and I will stay here and
try to find out where that shaft leads."

"All right, Steve," nodded the commissioner. "Too bad we had to find out
where that dirt came from the hard way."

Reaching the jet car, the two men placed Roger in the back seat, and
Hawks slid in under the wheel to start the powerful jets. Just then
Astro, racing back from the _Polaris_, pulled up breathlessly.

"Solar Guard crew is on the way, sir," he reported. He glanced anxiously
into the back seat of the jet car.

"All right, Astro," said Strong gently, "take care of Roger." Strong
gestured to the back seat and without a word Astro leaped in beside his
friend. Hawks stepped on the accelerator and the car shot away in a roar
of blasting jets.

Tom and Captain Strong watched the car disappear and then turned back to
the shack. Each felt the same emotion, an unspoken determination to see
that Wallace and Simms paid dearly for causing the accident.

Re-entering the shack, they began a careful examination of the shaft.
Strong played his emergency light down the sides, but the beam
penetrated only a short distance.

"We'll leave a note for the emergency crew," said Strong. "Our belt
communicators might not work so far underground."

"You're going down, sir?" asked Tom.

Strong nodded. "If necessary. Tie that valve on the end of the rope
Astro used and lower it into the shaft. If we can touch bottom with it,
we'll climb down and see what Wallace and Simms were after."

"Yes, sir," said Tom. He took the length of rope, tied the heavy metal
valve to the end, and began lowering it into the shaft. Strong continued
to play the light down the shaft until the valve disappeared into the
darkness.

"Rope's getting short, sir," warned Tom. "Only have about two hundred
feet left."

Strong glanced at the remaining coils of line on the floor. "I'll get
more from the _Polaris_, if we need it," he said. "How long was that
line to begin with?"

"It's a regulation space line, sir," said Tom. "Astro took it out of the
emergency locker. It's about twelve hundred feet."

By this time the line, hanging straight down the shaft, had become
increasingly heavy. Suddenly it grew slack.

"I think I've hit bottom, sir," cried the cadet. "But I can't pull the
valve back up again to make sure."

Strong grabbed the end of the line and helped the cadet pull it back up
a short distance. Then they dropped the line again and felt a distinct
slackening of weight.

"That's bottom all right," said Strong. "Take this end of the line, run
it out of the window on your right, and back through the one on your
left. Then make it fast."

"Yes, sir," said Tom. He jumped out of the window, trailing the rope
after him, and reappeared almost immediately through the other window to
tie a loop in the line. After checking the knot and testing the line by
throwing his full weight against it, Strong stripped off his jacket and
wrapped it about the line to prevent rope burns. Then, hooking the
emergency light on his belt, he stepped off into the shaft. Tom watched
his skipper lower himself until nothing but the light, a wavering pin
point in the dark hole, could be seen. At last the light stopped moving
and Tom knew Strong had reached the bottom.

"Hallooooooo!" The captain's voice echoed faintly up the dark shaft.
"The belt communicators don't work!" he yelled. "Come on down!"

"Be right with you, sir!" yelled Tom. He scratched a message on the
wooden floor of the shack for the emergency crew. Then he stripped off
his jacket, wrapped it around the rope, secured the light to his belt,
and stepped off into the darkness.

Slowly, his hands tight around the rope through his jacket, Tom slipped
down the deep shaft. He kept his eyes averted from the black hole
beneath him, looking instead at the sides of the shaft. Once, when he
thought he had gone about seven hundred feet, he saw that he was passing
through a stratum of thick clay and could see the preserved bones of
long-dead mammals, protruding from the side of the shaft.

Finally Tom's feet touched solid ground and he released the rope. It was
cold in the bottom of the shaft and he hastily put his jacket back on.

"Captain Strong?" he called. There was no answer. Tom flashed the light
around and saw a low, narrow tunnel leading off to his left.

He walked slowly, and the newly dug sides of the tunnel seemed to close
in on him menacingly. It was quiet. Not the blank silence of space that
Tom was used to, but the deathlike stillness of a tomb. It sent chills
up and down his spine. Finally he stepped around a sharp bend and
stopped abruptly.

"Captain Strong!"

The Solar Guard officer was stooping over, his light resting on the
ground, reading something he held in his hand. He looked up at Tom and
jerked his thumb back over his shoulder. Tom flashed his light in that
direction.

"By the rings of Saturn!" exclaimed Tom. There in front of him, ripped
open like a can of sardines, was the gleaming metal skin of the time
capsule! The dirt floor of the tunnel around Strong and beside the
capsule was littered with audio spools, sound disks, micropapers, and
stereo slides.

Tom kneeled down beside his skipper and stammered, "What--what does it
mean, sir?"

"It means," answered Strong slowly, "that we're dealing with two of the
cleverest men in the universe! If they've stolen what I think they have,
the entire Solar Guard, Solar Alliance, and just about everyone in the
universe is at their mercy!"

       *       *       *       *       *

"How do you feel, Roger?" asked Astro.

The blond-haired cadet sat up in bed, dangled his feet over the side,
and rubbed his neck. He groaned as he moved. "I don't think I'm going to
dance much this month, if that answers your question. I feel like every
bone in my body was broken!"

"They very nearly were, Cadet Manning," said the medical officer,
standing near by.

"What happened, Manning?" asked Commissioner Hawks.

"I really don't know, sir," replied Roger. "I was moving the junk out of
the corner of the shack so I could examine it. I was piling it up in the
middle of the floor when--wham--something gave way and I took a header
into nowhere!" He looked at Astro. "Now suppose _you_ tell me what
happened!"

Astro told Roger about finding him dangling at the end of the tangled
feed lines. Then he said, "Tom and Captain Strong are out there now,
waiting for one of the Solar Guard emergency crews."

"Well, what are we hanging around here for?" asked Roger, and hopped off
the bed. He groaned, staggered, and then straightened up. "Nothing to
worry about," he said, as Astro rushed to his side. "I'm as good as
new!"

"What do you say, Doctor?" asked Hawks.

The doctor hesitated a moment and then smiled. "Well, Commissioner,
Cadet Manning has several strained muscles in his back, but the best
treatment for that is exercise."

Hawks nodded and signed a release slip which the doctor gave him. Astro
helped Roger put on his space boots, and five minutes later they were
speeding back to the exposition grounds in the commissioner's jet car.
As they sped through the streets, the two cadets speculated on what they
would find at the bottom of the shaft. Arriving at the shack, they were
immediately challenged by an enlisted Solar Guardsman.

"Halt!" said the guard gruffly. "Advance slowly for recognition!"

With Commissioner Hawks leading the way, Roger and Astro walked up to
the guard.

"Say," said Roger, nudging Astro, "look at what's going on around here!"

"Yeah," agreed Astro, wide-eyed. "Something must be plenty hot to have
guards posted!"

Hawks was immediately recognized by the guard, but he still stubbornly
demanded proof of their identity. Hawks, Roger, and Astro hauled out
their Solar Guard identification disks, small metal plates with their
images engraved in the shiny metal. On the other side was a detailed
description of the bearer.

"Very well, sir," said the guard and let them pass.

In the pale light of dawn, feverish activity could be seen taking place
around the shack. Two huge jet vans, filled with every possible piece of
emergency equipment, were parked near by. The _Polaris_ had been taken
over as a temporary headquarters and the area was crowded with
scarlet-clad enlisted men. Astro could hear the hum of generators on the
_Polaris_ and immediately felt concern for his power deck.

Proceeding to the shack they were again challenged by a guard and again
had to produce their identification disks before entering. Once inside,
they were amazed at the transformation. An aluminum tripod, ten feet
tall, had been erected over the hole in the floor, and several steel
cables, connected to a motor-driven steel drum, were looped over the
apex of the tripod, one hanging straight down into the shaft. A thick
plastic hose hung over the edge of the shaft, jerking spasmodically as
air was pumped into the dark hole.

"By the craters of Luna," cried Hawks, "what's going on here?"

A young lieutenant stepped up to the commissioner and saluted sharply.
"Lieutenant Silvers, sir. Second-in-command to Captain Allison of the
emergency crew."

Hawks returned the salute and Lieutenant Silvers continued.

"Captain Strong, Cadet Corbett, and Captain Allison are at the bottom of
the shaft, sir. The cage will be up in a moment and you may go down if
you care to."

"Thank you, Lieutenant," said Hawks.

"Congratulations, Cadet Manning," said Silvers. "I understand you had a
close call in the shaft."

"I did, sir," said Roger. "It was _very_ close."

A light suddenly flashed on and the four spacemen turned to watch a
large wire cage rise out of the shaft. It was built in three sections,
each seven feet high. A ladder on one side of the cage gave easy access
to the higher and lower levels. Astro climbed to the top section while
Hawks took the lower. Roger stepped into the center section to avoid a
climb. An enlisted man secured the gates and turned on the motor. The
cage dropped through the shaft with sickening speed.

A minute later it began to brake slowly, finally coming to a dead stop
at the bottom of the shaft. They were met by a Solar Guardsman who
directed them into the tunnel, now illuminated by a row of flowing,
self-powered emergency lights. Silently, but with rising excitement, the
two cadets followed Hawks through the brightly lighted shaft, a thousand
feet below the surface of the planet.

Turning the last corner in the tunnel they came upon Strong, Tom, and
Captain Allison huddled near the torn side of the time capsule. They
could hear Strong talking to Tom.

"There is a vault on every spaceship in the Solar Alliance, Tom," Strong
was explaining. "The vault is locked before blast-off and opened after
landing by a light-key operated only by a trusted spaceport security
officer. This key flashes a series of light vibrations, in sequence,
into the electromagnetic lock on the vault. It's really nothing more
than a highly developed flashlight except that it flashes multiple
combinations of lights, each containing certain electronic vibrations.
The electromagnetic lock can only be opened with the proper combinations
of colors and vibrations flashed by the light-key. Of course each ship
has a different code of colors and vibrations, but the code itself
wouldn't be hard to crack. The big thing would be to have an adjustable
light-key, so that if one combination of colors and light vibrations do
not work, you can try another. In that way you could open any energy
lock on any vault in the system."

"And Wallace and Simms--" Tom hesitated.

"Yes, Corbett," said Strong grimly. "Wallace and Simms stole an
information sound spool from the capsule. On that spool was a detailed
description of the energy lock and the adjustable light-key. There were
only seven keys in the system up to now. If we don't catch Wallace and
Simms, there'll be eight."

"Great galaxy," Commissioner Hawks broke in. "This will ruin the
exposition! The Alliance will close it after--"

Strong waved a calming hand at Hawks. "I've already spoken to Commander
Walters at Space Academy, Mike," he said. "He wants this to remain a
secret. No one knows about it besides us, and no one will. I'm taking
your oaths, your spaceman's word, that it will remain a secret. There's
no use in starting a panic. You'll keep the exposition going as if
nothing had happened."

"But what can the Solar Guard do, sir?" asked Tom.

"We'll start the greatest search the system has ever seen," replied
Strong calmly. "But the order for their arrest will be issued for some
other violation." The Solar Guard officer suddenly noticed Roger for the
first time.

"Oh, Manning!" he said, smiling. "Good to see you. How do you feel?"

"O.K., sir," replied Roger. "But I'd feel a lot better if those space
crawlers didn't have the combination to every safe and vault in the
universe!"

Strong nodded. "This is one of the cleverest crimes in history. And in
searching for Wallace and Simms, we'll have to be twice as smart as they
are!"

"Yes, sir," said Tom. "First we have to figure out what they will do,
and then figure out how we're going to beat them!"

"That's right, Tom," nodded Strong. "And by the stars, if we don't beat
them, the only safe place left for the credits and securities of the
people in the system will be behind rows of paralo-ray guns!"




CHAPTER 7


"Attention! Attention! This is Captain Maitland of the rocket cruiser
_Orion_ reporting to Captain Strong at Space Academy. Come in, Strong!"

High in the Tower of Galileo overlooking Space Academy, the Solar Guard
officer, his face showing the strain of the last three-weeks' futile
search for Wallace and Simms, flipped on the teleceiver and replied,
"Strong here. Go ahead, Maitland."

Tom, Astro, Roger, and Commander Walters stood behind Strong and waited
tensely for the last report to come in. Maintland's voice crackled
through millions of miles of space.

"We've searched space quadrants A through D, sections twenty-one through
one hundred thirty-eight. Constant six-way radar sweep of the area. No
sign of Wallace and Simms."

Strong sighed deeply and replied, "All right, Maitland. Thank you. You
may return to base. End transmission."

"End transmission!" signaled Maitland, and the crackling static died out
in the quiet room.

Walters stepped forward and placed his hand on Strong's shoulder. "Don't
let it get you down, Steve," he said. "I saw the zone search you set up
for those two. No one could have done more."

"Maybe not, sir," said Strong, getting up, "but we didn't catch them."

"Not yet," frowned the commander grimly, "but we will! Well, there's
nothing else to do here. That was the last patrol ship to report, so you
might as well close up shop."

He turned to the cadets, who had been reassigned from the exposition as
aides to Captain Strong in his search for Wallace and Simms. "You three
come with us," said Walters. "I've got an idea and I want all of you to
hear it."

Strong and the boys followed the commander out of the Academy
communications center down to his luxuriously furnished office.

"Perhaps," said Walters, settling back in his chair and lighting an
enormous pipe filled with red Venusian tobacco, "perhaps we have been
hunting the fox with the wrong kind of dogs."

"Assuming that Wallace and Simms are the foxes in this case and the
Solar Guard the hunting dogs, what would you suggest, sir?" asked
Strong.

Walters puffed several times and eyed Strong. "I was going to suggest
that you and the cadets become merchant spacemen for a while and take a
look at some of the uglier places of the Solar Alliance. Go right into
the foxes' den dressed as foxes!"

"Ummmmh," mused Strong. "It is an idea."

"Give it a try, anyway," urged Walters. "Take that old freighter we
confiscated from the Titan smugglers, the _Dog Star_. Wander around for
a few weeks and see what you can pick up. We have the advantage, since
only a few of us know _why_ we're looking for Wallace and Simms. It
might make finding them a little easier."

Strong looked at the cadets and then back at the commander. "It might
just work, at that, sir," he said at last.

"Work your way around to Venusport," said Walters. "Let it be known that
you four are--well, willing to do just about anything for a credit."

Strong and the cadets smiled. "All right, sir," said the young captain.
"We'll start right away."

"No!" replied the commander firmly. "You'll start in the morning. Right
now, I'm ordering you to hit the sack and get some rest. You're not
going to catch those two with speed. You'll need brains and cleverness."

"Very well, sir," said Strong as he stood up. "And I want to thank you
for giving us this assignment."

"No question about it," answered the commander. "If you have a tough job
to do, you put your best team to work on it, and the job will get done!"

It was difficult for the three cadets, who had been standing to one side
listening, to suppress a smile. They saluted and followed Strong from
the room. He left them at the slidestairs with orders to be ready to
blast off at 0800 hours.

Tom was silent as he climbed into his bed in the _Polaris_ unit's
quarters on the forty-second floor. Roger and Astro fell asleep almost
as soon as their heads touched their air-foam pillows, but the
curly-haired cadet lay with arms under his head, staring up at the
ceiling. He felt uneasy about the task that faced them. He wasn't afraid
for himself, or Roger, or Astro. Something he couldn't put his finger on
bothered the young spaceman.

He reviewed Wallace and Simms' entire operation. He remembered the two
men had struck him as not being too bright. Their success in stealing
the secret of the adjustable light-key, and their methods, plus their
complete disappearance, just didn't add up. He made up his mind to speak
to Captain Strong about it in the morning. As soon as the matter was
settled in his mind, he was asleep.

       *       *       *       *       *

At exactly 0800 hours the three cadets and Captain Strong appeared at
the Academy spaceport dressed in the severe black tight-fitting trousers
and jacket of merchant spacemen. Quietly eluding all friends and
acquaintances, they entered the confiscated freighter that had been
prepared for space flight during the night and began acquainting
themselves with the ship's equipment.

When Astro reported the power deck ready and Roger cleared their course,
Tom called the traffic-control tower for blast-off clearance.

"Take it easy on the first hop," said Strong. "There's no hurry and I
want to be sure we get this crate off in one piece." Smiling confidently
at the control-deck cadet, he turned away to his quarters. He was aware
of the effect that being left alone had on the cadets. He had learned
early in his associations with Tom, Roger, and Astro that they bore
responsibility well, and a challenge to do a good job would assure him
the job would be done efficiently.

"Stand by to raise ship!" Tom's voice crackled confidently over the
ship's intercom.

Strong sat on an acceleration cushion and strapped himself in. He heard
Tom's voice counting off the seconds for blast-off.

"... Five--four--three--two--one--_zero_."

As the rockets burst into a loud roar, the freighter lurched from the
ground and thundered up into the atmosphere, pushing Strong deep into
his acceleration cushion. Minutes later, he felt the freedom of
free-fall space. In a strange ship, the _Polaris_ crew had begun a
strange mission.

During the flight to Luna City, their first stop on the tour of the
hangouts of outlawed spacemen across the solar system, Strong briefed
his cadets on a plan of action.

"I think it'll be better if we split up into two teams. You work with
me, Corbett, and Astro will team up with Manning. We'll operate like
simple tramp spacers. Our space papers have new last names, but the same
first names, so there won't be any slip-ups when we speak to each other.
From now on, if we happen to meet, you'll all call me Steve and I'll
call you by your first names. Is that clear?"

The cadets nodded.

"All right," continued Strong. "Now, when we arrive in a city, Tom and I
will go to one section, while you two go to another. Visit the
toughest-looking places you can find. Talk, talk to anyone that wants to
talk. Buy people drinks. Let it slip that you're not exactly on the
right side of the space code. Then, if you feel you have a sympathetic
listener, mention Wallace and Simms. Say you have heard of the trouble
they're in. Say you know them, that you're old friends, and hint that
you have something that they need very badly. Just keep talking and
pulling for information. Got that?"

Again the three cadets nodded silently.

"Wear your paralo-ray guns at all times and keep your belt communicators
hidden beneath your jackets," Strong warned. "If one team gets into a
tight spot, call the other right away. But don't call unless it's
absolutely necessary!" Strong paused and glanced at the tele-scanner.
"We're getting close to Luna City. We'll touch down at the municipal
spaceport and go through the regular routine of customs search just to
establish ourselves as tramp spacemen."

"How long will we stay in each city, sir?" asked Tom.

"Watch that 'sir,' Tom," snapped Strong. "Might as well begin to forget
it now."

"O.K., Steve," replied Tom sheepishly.

"To answer your question, we'll stay in each city only as long as there
might be something to be gained by staying. We'll live aboard the _Dog
Star_. But stay away from the ship as much as possible. If anyone
questions you, tell them you're looking for cargo. But in case they take
you up on it and offer you a cargo haul, you always want more money for
the job."

Roger grinned. "That could be fun."

"Be clever, but be tough. Some of the people you'll run into are the
most ruthless men in the universe. They are just the ones that might
know something about Wallace and Simms."

Strong cautioned them against drinking rocket juice, suggesting they
drink Martian water instead. The briefing was interrupted by the
automatic warning beep from the tele-scanner informing them that they
had passed the outer beacon on the approach to the municipal spaceport
on the Moon. The four spacemen immediately began the routine task of
landing their ship safely on the satellite colony.

An hour later, as gray-clad customs men finished searching the empty
ship, Roger waited for final clearance at the air lock of the freighter.
When the last of the men were leaving the ship, Roger stopped two of
them.

"Say, ground hogs," drawled Roger, "where's the best place to get
something to eat?"

The two men stopped and turned to face the cadet, their eyes cold and
unfriendly. "Why don't you space drift blast out of here?" asked one of
them.

"Yeah," agreed the other, "your kind aren't welcome in Luna City."

Roger shrugged his shoulders and turned away. The two customs officers
continued down the gangway. "Those young punks," muttered one, "they get
themselves a berth on a crummy freighter and think they're real hot
space aces when they're nothing but wet fire-crackers!"

Strong had appeared at Roger's side and heard the last remark.

"What was that about, Roger?" he asked, nodding toward the disappearing
customs men.

Roger smiled. "Just seeing if I could get by."

"They certainly gave us a good going over," said Strong grimly. "I think
our disguise is perfect. Those fellows don't miss much."

"I heard them talking, Steve," said Roger. "They recognized the ship and
know its reputation for smuggling."

"Yes," agreed Strong. "And your remark will make them sure to watch
every move we make. But that's just what we want. News of that sort has
a way of getting around. And anyone interested in a ship with a
reputation for smuggling is someone we're interested in."

Astro walked up, and with a brief nod Roger followed the big cadet down
the gangway. As they walked across the concrete surface of the
spaceport, Tom appeared at Strong's elbow.

"I'm ready to go, Steve," he said. "The ship's secure."

"Very well, Tom," said Strong. "But from now on, keep your eyes and ears
open. It only takes one slip to make a dead spaceman!"




CHAPTER 8


"See that fellow over there, Steve?" whispered Tom. "The one with the
scar on his face?"

"Yeah," replied the disguised Solar Guard officer. "I've been watching
him too. And I think he's had his eye on us."

Tom and Captain Strong were sitting in a small restaurant near the
spaceport, drinking Martian water and discussing the shadowy characters
that lounged around the stuffy little room.

"I'll walk over to the bar," said Strong. "Maybe he doesn't want to talk
to two of us together. You go over and see if you can strike up a
conversation."

"Good idea, sir--uh--Steve," said Tom.

Strong got up and with an exaggerated swagger walked to the small bar.
From the mirror in back of the bar, he could see Tom rise and saunter
over to the man who sat on the opposite side of the room.

For three days, Roger, Astro, Tom, and Strong had wandered through the
bars, restaurants, and cheap hotels of Spaceman's Row in Luna City
searching for information that would lead them to Wallace and Simms.
Each night they returned to the freighter to exchange, sift, and analyze
the bits of information gathered, but for three nights they had come up
with a total of nothing. Finally, Strong had decided that this would be
the last night they would spend in Luna City. It was after making this
decision that he and Tom spotted the scar-faced man sitting alone in one
corner.

[Illustration: _The scar-faced man obviously wanted something from Tom_]

Strong saw Tom stop at the table, say a few words, then sit down and
order drinks. Tom and the scar-faced man continued their conversation,
now leaning across the table talking in whispers, stopping only long
enough for the waiter to serve the drinks. Strong noticed that the
scar-faced man paid for them and smiled to himself. That was a step in
the right direction. He obviously wanted something from Tom.

Suddenly the young cadet looked up and motioned for him to come over to
the table. Strong merely lounged against the bar and nodded carelessly.
Taking his time, he finished his glass of Martian water, then swaggered
across the crowded room to the table.

Tom glanced up casually and then turned to his companion at the table.
"This is my skipper," he said. "Name's Steve. You gotta job to do,
Steve'll do it. Anything, anywhere, any time," he paused, and then added
with a smirk, "for a _price_!"

The scar-faced man looked up at Steve. His eyes traced a pattern over
the tall man, noting the broad shoulders, the piercing eyes, and the
bulge of a paralo-ray gun in his jacket. He pushed a chair back with a
foot and managed a smile in spite of the scar that twisted his features
into an ugly mask. "Sit down, Steve. My name's Pete."

Strong accepted the invitation silently. At close range, he saw the man
was more disfigured than he had noticed from the bar. The scar on his
face reached from his left ear across his cheek and down to his neck.
Pete saw him looking at the scar and smiled again. "Funny thing about
scars. I got one, but I don't have to look at it. I just stay away from
mirrors and I remember myself as I was before I got it. So look all you
want. You're the one that's got to suffer for it."

Ignoring the man's bitter tone of voice, Strong growled, "I'm not
interested in what you look like. You got something to haul; we got a
ship to haul it. Name your cargo and destination, and we'll name a
price."

"Ain't as simple as that," said Pete craftily. "I gotta know more about
you before we talk business."

"What for instance?" asked Strong.

"For instance, who do you know on Spaceman's Row that can give you a
reference?"

Tom spoke up quickly without looking at Strong. "Suppose I told you I
helped pull a job a couple of weeks ago that was worth a hundred
thousand credits?" He settled back, casually glancing at Strong and
receiving an imperceptible nod in return.

"A hundred thousand, eh?" said Pete with interest. "Not bad, not bad.
What kind of a job was it?"

"Me and two other guys held up the Credit Exchange at the Solar
Exposition at Venusport."

"Oh?" Pete was becoming extremely curious. "You in on the job too,
Steve?"

Before Strong could answer, Tom spoke quickly. "No, I bought a half
interest in Steve's ship with my share of the take." Strong could hardly
keep from smiling, so easily was the young cadet's tale growing.

"Then who _was_ in on this job with you?" persisted the scar-faced man.
"You look pretty young to pull a big job like that."

Tom glanced around the room and then leaned over the table before
whispering, "Gus Wallace and Luther Simms."

"What?" exclaimed Pete. "Gus Wallace? A guy about six feet tall and two
hundred pounds? Has a heavy rough voice?"

"That's the one," said Tom.

Pete's arm shot across the table like a snake and he grabbed Tom by the
jacket. "Where is he?" he asked through clenched teeth.

No sooner had Pete touched Tom than Strong had his paralo-ray gun
leveled at the scar-faced man. "Take your hands off him," he said
coldly, "or I'll freeze you right where you are!"

Pete relaxed his grip and settled back into his chair. He glared at Tom
and then at Strong.

"All right," snapped Strong. "Now _you_ talk!"

Pete didn't say anything. Strong inched closer to the scar-faced man
menacingly. "I said _talk_! Why do you want to know where Gus Wallace
is? Maybe you're Solar Guard, eh? Trying to play a little trick on us.
How do I know you haven't got a squad of MP's outside waiting to pick us
up?"

Pete began to shift nervously. "You got me all wrong, Steve. I ain't
Solar Guard."

"Why do you want to know where Gus Wallace is, then?" Strong persisted.

Pete hesitated and had to be prodded with the paralo-ray gun again by
Strong. "Talk!" hissed Strong.

"You see this scar?" asked Pete. "Well, two years ago, on Spaceman's Row
in Marsopolis, Gus slashed me in a fight. I swore I'd do the same for
him when I caught him, but he's been running from me ever since."

"Marsopolis, eh?" asked Strong. "Two years ago?"

"Yeah."

"I think you're lying! You're Solar Guard."

"Honest, Steve," whined Pete. "That's the only reason I want him. Ask
anybody. It happened in the Spacelanes Bar on New Denver Avenue. I bet
there are five guys here right now who heard about it!"

Strong got up, pushing the gun back in his belt.

"Come on, Tom. I don't like the way your friend Pete answers questions."

"Wait a minute!" Pete rose from his chair, protesting.

Strong whirled around and faced the scar-faced man. "If I were you,
Pete," he muttered, "I'd sit still and not ask any more questions. It
isn't healthy!"

Without another word Strong walked out of the dingy restaurant. Tom
shrugged his shoulders in a helpless gesture and followed, leaving Pete
alone and worried.

Outside in the street, his face bathed in the garish light of the vapor
street lights, Strong stopped to wipe his forehead.

"Whew!" he gasped. "We certainly bulled our way through that one!"

"I felt the same way," said Tom. "But at least we have something to go
on. You think he was suspicious?"

"No, Tom. He was so scared when I accused him of being tied up with the
Solar Guard it threw him completely off stride."

"Well? Where do we go from here?" asked Tom.

"Back to the ship," replied Strong. "And as soon as Astro and Roger show
up, we blast off for Marsopolis. Our next target is a joint called the
Spacelanes!"

       *       *       *       *       *

Against a backdrop of shimmering stars that studded the velvet black
emptiness of space, the freighter _Dog Star_ rocketed toward the red
planet of Mars carrying the four spacemen on the next step of their
search. Relaxing from the three arduous days on the Moon and able to be
themselves once more, Strong and the three cadets rested and discussed
every detail of their stay in Luna City. It was finally decided that
their only real chance of tracing Wallace and Simms lay in the
Spacelanes Bar. As they approached Mars, Strong outlined their next
move.

"We'll do the same thing as we did in Luna City," he said. "Split up.
Only this time, we'll all go to the same place, the Spacelanes. Tom and
I will go in first and do most of the nosing around. Astro and Roger
will drift in later and hang around, just in case there's trouble."

The three cadets nodded their understanding, and when Strong turned to
the teleceiver to make his report to Commander Walters at Space Academy,
they took their stations for touchdown at Marsopolis.

His face impassive on the teleceiver screen, Commander Walters listened
to Strong's report, and when the Solar Guard officer finished, he
grunted his satisfaction.

"Do you have any news on Wallace and Simms, sir?" asked Strong.

"Yes, but my news isn't as good as yours," frowned Walters. "They've
already made use of their knowledge of the light-key. They held up a
Solar Guard transport en route to Titan and emptied her armory. They
took a couple of three-inch atomic blasters and a dozen paralo-ray guns
and rifles. Opened the energy lock with their adjustable light-key as
easily as if it had been a paper bag. It looks as though they're setting
themselves up for a long siege."

"Do you have any idea where they might be hiding, sir?"

"Somewhere in the asteroid belt, I believe," replied the commander.
"They headed for the belt after they held up the transport."

"Well, we'll do what we can from our end, sir," said Strong. "Since Mars
is closer to the asteroid belt than any other planet, they might be
using Marsopolis as a hangout. Or someone might have seen them
recently."

"Use whatever plan you think best, Steve. I'm counting on you."

"Thank you, sir."

"Spaceman's luck! End transmission."

"End transmission," replied Strong and flipped off the screen.

Fifteen minutes later, the _Dog Star_ settled on a blast-scorched ramp
at the Marsopolis spaceport, and after a hasty review of their plans,
the four spacemen left the ship. Strong had a brief argument with a
customs officer over a personal search for small arms. They were forced
to leave their paralo-ray guns on the ship. Disgruntled, as far as the
customs agents were concerned, Strong was actually pleased with the
success of their disguise as merchant spacemen.

Tom and Strong found the Spacelanes Bar in the roughest and darkest
section of Marsopolis. It was large and almost empty. But Tom noted that
it was just like many other such places he had been in in Luna City. The
walls were scarred and dirty, the floor littered, and the tables and
chairs looking as if they had been used in a hundred fights. Behind a
bar that ran the length of one wall, a heavy-set man with beady black
eyes watched their approach.

"What's your pleasure, spacemen?" asked the bartender in a gruff voice.

Strong hesitated a moment and decided to play all his cards at one turn.
"We'll have a thousand credits worth of information."

The barman's eyes narrowed into black slits. "What kind of information
would bring that kind of a price?" he asked.

"Information about a man," said Strong.

"What man?" asked the barman. He dropped his hand out of sight behind
the bar. Tom's eye caught the move and he wished the customs men hadn't
taken away their paralo-ray guns.

Just at that moment he heard Roger's unmistakable laugh and turned to
see the blond cadet, followed by Astro, enter, cross the room, and slap
the bar for service.

"Let me take care of these two," muttered the bartender and walked down
to the end of the bar. Facing Roger and Astro, he snarled, "What'll it
be?"

"Coupla bottles of Martian water," drawled Roger.

"Get out of here," roared the bartender. "We don't sell kids' drinks in
here."

"Two bottles of Martian water!" growled Astro and leaned over the bar
threateningly. Strong and Tom watched the performance with amused eyes.
Without a word, the barman opened the bottles of Martian water and gave
them to Roger and Astro. He turned back to Strong.

"These young rocketheads think they're so blasted tough," he sneered,
"and then drink kids' soda pop."

Strong looked at Roger and Astro. "That fellow on the right," indicating
Astro's size, "looks like he could be a little more than a child, if he
got mad."

The barman snorted and leaned over the bar. "What about that thousand
credits?" he asked.

"What about it?" countered Strong.

"That's a lot of money just for information," said the barman.

"It's my money," replied Strong coolly, "and my business!"

"What kind of information you interested in," asked the bartender.

"I told you, information about a man," said Strong. "Gus Wallace. Happen
to know him?" Strong pulled a roll of crisp credit notes out of his
jacket pocket. The barman looked at them greedily.

"Maybe. What'cha want with him?" he asked.

"He knifed a friend of ours in here two years ago."

"Yeah?" drawled the barman. "Who?"

"Pete," answered Strong, suddenly realizing he didn't know the
scar-faced man's last name.

"Pete? Pete who?" asked the barman craftily.

"What are you trying to do?" snapped Tom suddenly. "Play space lawyer?
You know Pete was knifed in here by Gus Wallace two years ago! Carved up
good!" He made a slashing gesture from his ear to his throat, indicating
the scar on Pete's face.

"So you want Wallace, eh?" mused the bartender.

"We want him a thousand credits' worth," said Strong.

"You didn't tell me for what, yet."

"None of your space-blasting business," roared Strong. "You want the
thousand or not?"

The bartender couldn't keep his eyes off the crisp roll of credit notes
Strong rippled under his nose and hesitated. "Well, to tell you the
truth, I ain't seen him for a long time."

"Then do you know anyone who has?" asked Strong.

"Hard to tell," said the bartender huskily. "But I do know the guy who
would know if anyone does."

"Who?" asked Tom.

"On Venusport's Spaceman's Row. There's a joint called the Café Cosmos.
Go there and ask for a little guy named Shinny. Nicholas Shinny. If
anyone knows about Wallace, he'll know."

Tom's heart almost stopped. Nicholas Shinny was a retired spaceman who
had taken part in his last adventure to Alpha Centauri, and was a good
friend of Strong's and the _Polaris_ unit. Shinny had always operated on
the edge of the space code. Nothing illegal, but as Shinny himself put
it, 'just bending the code a little, not breaking it.'

Tom spoke up. "That's only worth a hundred credits," he said.

"Whaddya mean!" snapped the barman.

"How would Nick Shinny know Gus Wallace?" asked Strong.

"They prospected the asteroids together years ago."

Strong dropped a hundred-credit note on the bar and turned away without
another word. Tom followed, and as they passed Roger and Astro, a
knowing look passed between them, and Tom gestured for them to follow.

Having heard the conversation, Astro and Roger walked over to the
bartender who was folding the credit note before putting it in his
pocket.

"You sell your information pretty cheap, spaceman," snarled Roger.
"Suppose those two were Solar Guardsmen in disguise?"

The bartender paused, then shook his head. "Couldn't be!" he said.

"Why not?" asked Roger.

"Because the Solar Guard has a guy salted away that knows exactly where
Wallace is."




CHAPTER 9


"That's the story, sir," said Strong to Commander Walters, after the
Solar Guard captain had related the information he had wormed out of the
bartender at the Spacelanes Bar and the news Roger and Astro had
brought.

"All right, Steve," nodded the commander. "I'll have the man picked up
right away and psychographed. Meantime, you go on to Venus and see
Nicholas Shinny."

"Very well, sir," said Strong. "End transmission!"

"End transmission," acknowledged Walters. Strong flipped the switch and
the teleceiver screen darkened.

Fifteen minutes later, the _Dog Star_ blasted off from Mars, heading for
Venus.

During the trip back to the young planet that was rapidly growing into a
major industrial center rivaling Earth, Strong received a report from
Space Academy that the bartender had been picked up. His name was Joseph
Price, and after questioning him under truth serum, Solar Guard security
officers found the man's mind to be so filled with criminal plots and
counter-plots, it would take several weeks for the psychograph analyst
to learn the name of the man he claimed would know the whereabouts of
Wallace. This was disappointing news for Strong, especially since the
report included news of a second, third, and fourth strike by Wallace
and Simms on spaceships near the asteroid belt.

Reaching the starting place of their adventure, Venusport and the Solar
Exposition, Strong and the three cadets went immediately to a small
suburban section of the great city and the home of Nicholas Shinny.

Shinny lived comfortably in a small house made of Titan crystal,
enjoying himself during the day catching Venusian fatfish and watching
the stereos at night. Once an enlisted spaceman, he had been retired
with full pension and was living in ease and comfort. When Strong and
the three cadets arrived at the elderly spaceman's house, they found him
busy teaching a young Venusian wolfhound puppy how to retrieve.

"Well, blast my jets!" cried the old man. "If it ain't Tommy, Roger, and
the big fella, Astro! And Captain Strong!"

"Hello, Nick!" said Strong with a smile. "You're a sight for space-blind
eyes!"

"Heh-heh-heh," cackled Shinny, his merry eyes twinkling against his deep
space tan. "It's mighty good to see you boys. Come on in the house. I
got a mess of fatfish just pulled out of the stream and some of the most
delicious biscuits you ever had in your life!"

"Well, thanks, Nick," hesitated the captain. "But we're in--"

"Can't be in too much of a hurry to eat," snapped the old man with a
grin. "Anything you got to say is better said when you got a bellyful of
Molly's cookin'."

"Molly!" cried Tom. "But, Mr. Shinny--"

"When--" gulped Astro, "when did you--"

"Hey! Hold on!" cried the old spaceman. "Just damp your tubes there,
youngsters! You're way off course. Molly ain't nothing but an electronic
cook I got installed in the kitchen. She cooks better'n any
space-brained woman and she never opens her mouth to give me any sass!"

The four spacemen laughed at Shinny's obvious indignation.

"Now come on!" he growled. "Let's eat. I'm hungry!"

Refusing to allow them to get near Molly, Shinny began pushing food into
slots, compartments, turning on switches and punching buttons. In the
cozy living room, Strong relaxed while the three cadets played with the
Venusian wolfhound. Finally Shinny announced dinner and they fell to
with gusto. There wasn't much talk during the course of the meal. Strong
and the boys felt that Shinny would let them know when he was ready.

Finally the meal was over. Shinny sprawled in his chair, lit his pipe,
then looked at his guests, his eyes twinkling. "All right, me friends, I
think you've held back long enough. Let's have it."

Strong immediately told the old spaceman the entire story, from Wallace
and Simms' false concession at the exposition to the present.

"You see, Nick," he concluded, "with an adjustable light-key enabling
them to open any lock in the solar system, nothing is safe. Personally,
I think it's only because they haven't a larger or faster ship and
aren't better armed that they haven't tried more daring piracy. They'll
reach that point soon, though. They've already robbed four ships for
arms alone."

"I'll do anything I can to help you, Captain," said Shinny. "What is it
you want to know?"

"We suspect that Wallace has a secret hide-out in the asteroid belt,"
said Strong. "Since you once prospected the asteroids with him I thought
you might know where the hide-out is."

Shinny grew reflective and knocked the ashes out of his pipe before he
answered. "That was a long time ago, Captain. More'n ten years. And Gus
Wallace was a real square spaceman then. He didn't turn bad until after
we split up and he met that other feller."

"What other fellow?" asked Strong.

Skinny paused. There was a hard glint in his eyes. "Bull Coxine!" He
spat the name out as though it had left a bad taste in his mouth.

"Coxine!" exclaimed Strong.

"You heard me," snorted Shinny. "Bull Coxine and Gus Wallace got
together after me and Wallace lost our stake hunting for uranium
pitchblende in the asteroids and split up. Next thing I heard, him and
Coxine was mixed up in that business up on Ganymede when the Credit
Exchange was held up."

Strong's face had turned the color of chalk. "Coxine!" he repeated under
his breath.

Noticing Strong's reaction to Shinny's statement, Tom asked, "Who is
Coxine, Captain Strong?"

Strong was silent and Shinny turned to the cadets.

"When your skipper here was a young feller just starting out in the
Solar Guard," the old man explained, "he was on a routine flight out to
Titan and there was a mutiny. Coxine was the ringleader. The captain
joined up with Coxine after they had put his skipper in the brig. When
he had Coxine's confidence, he regained control of the ship and sent
Coxine and the others to a prison asteroid. Coxine has hated the captain
ever since and swore to get him."

"But how did he pull the holdup on Ganymede, then?" asked Roger.

"Coxine escaped from the prison asteroid in a jet boat, disguised as a
guard," continued Shinny. "Only man ever to escape. He drifted around in
the belt for a while and was picked up by a freighter going to Ganymede.
The freighter had been out rocket-hopping among the asteroids,
collecting the prospectors' small supplies of uranium and taking the
stuff back to Ganymede for refining. Wallace happened to be dead-heading
on the freighter. When they got to Ganymede, and Coxine saw all the
money lying around at the Credit Exchange to pay off the prospectors, he
convinced Wallace to go in with him and they robbed the Exchange. Coxine
was caught red-handed, but Wallace got away. In fact, the Solar Guard
didn't know Wallace had anything to do with it. So Coxine was taken back
to the prison asteroid, and Wallace has been driftin' around the system
ever since."

"But, Mr. Shinny," asked Astro, "if you knew Wallace was tied up with
the robbery of the Credit Exchange, why didn't you tell the Solar Guard
before now?"

"Sonny," sighed Shinny, "most of what I know is space dust and space
gas. But even so, I don't think Commander Walters or Captain Strong, or
even you boys, would think much of me if I went around like an old space
crawler, blowin' my jets all over the place."

Strong had listened to Shinny fill in the background of Bull Coxine with
a thoughtful look in his eyes. He remembered all too clearly the mutiny
on the ship out to Titan. Coxine had been an enlisted Solar Guard petty
officer aboard the ship. He had made great strides in two years and was
being considered as an officer candidate on the very day he tried to
take over the ship. When Strong regained control later, he talked to
Coxine, trying to find out why he had started the mutiny. But the man
had only cursed him, swearing vengeance. Strong hadn't seen him since.

"So you think he would know where Wallace and Simms might be hiding
out?" Strong asked finally.

"If anyone does," replied Shinny, "he does. And I'll tell you this,
Captain, if you go to talk to him and I figger you will, you'll find him
a lot tougher."

"Will I?"

"Well, take yourself, for instance. No reflection on you, of course, but
take yourself. You're smart, you're hard, and you got a good mind.
You're one of the best spacemen in the deep. Take all that and turn it
bad. Real bad. Sour it with too many years on a prison asteroid and
you've got a fire-eating rocket buster as tough and as rough as God and
society can make him!"

The three cadets gulped and looked at Strong. They saw their skipper
clench his teeth and ball his fists into tight knots.

"I know," said Strong in a hoarse whisper, "but if he knows where
Wallace and Simms are, he'll tell me. You can bet your last credit,
he'll tell me!"

Shinny paused reflectively. "I won't bet," he said simply.

       *       *       *       *       *

The air inside the space shack was stale because of a faulty filter in
the oxygen circulator that neither Wallace nor Simms bothered to clean.
The two men lazed around in stocking feet and undershirts, listening to
popular music coming over the audio receiver on a late pickup from one
of the small Jovian satellite colonies near by.

"Pour me another cup of coffee, Simms," grunted Wallace.

The smaller man poured a cup of steaming black liquid and silently
handed it over to his companion. They both listened as the music faded
to an end and the voice of the announcer crackled over the loud-speaker.

"This audiocast has been beamed to space quadrants D through K, as a
courtesy to the army of uranium prospectors working the asteroid belt.
Hope you've enjoyed it, spacemen, and happy hunting!"

Wallace reached over and snapped off the receiver. "Thanks, pal." He
laughed. "The hunting's been real good! We've got a full catch!" The
giant spaceman laughed again.

"Yeah," agreed Simms. "I just went over the take. We've got enough money
in that locker"--he indicated a black box on the floor--"to sit back and
take it easy for the rest of our lives."

"Yeah?" snarled Wallace. "You mean sitting in the sun on a crummy
lakeside, watching the birds and bees?"

"Gus," asked Simms thoughtfully, "you got any idea how much fun we can
buy with the credits in that box?"

"Yeah, I have!" sneered Wallace, "and I know what a thousand times that
much will buy too!"

Suddenly Simms turned and looked his partner in the eye. "What do you
say we quit now, Gus? I mean it. We got plenty."

"You sound like you been exposed to too many cosmic rays!" said Wallace,
tapping his head with one finger. "We've got the biggest secret in the
system, the adjustable light-key plus an airtight hide-out, and you want
to quit!"

"It ain't that," whined Simms. "It's the other deal. I don't mind going
out and blasting a few freighters, but to try to--"

"Lissen," interrupted Wallace, "I'd rather try it and take the licking
if we mess it up, than not try it and take that licking. I know which
side of the space lane I'd better be on when the time comes!"

Simms hesitated and then sighed, "Yeah, I guess you're right."

"Come on. Let's listen to that story spool again."

"Oh, no," moaned Simms. "I know that spool by heart! We've heard it at
least fifty times!"

"One slip-up," said Wallace, sticking his finger in Simms' face, "just
one slip-up and we're finished! We've got to be sure!"

With a reluctant shrug of his shoulders, Simms poured another cup of
coffee and sat on the side of his bunk while Wallace inserted the story
spool in the audio playback.

They settled themselves and listened as a deep voice began to speak in a
loud whisper.

"... The operation will take place on the night of October twenty-ninth
at exactly twenty-one hundred hours. You will make your approach from
section eleven, M quadrant--"

Simms jumped up abruptly and switched off the playback. Turning to
Wallace, he pleaded, "I can't listen to it again! I know it by heart.
Instructions on how to get to the time capsule; instructions on what to
take, and how to build an adjustable light-key after we get the plans;
instructions on how to hijack the first ship and what to take. Orders,
information, instructions! I'm sick of listening. If you want to, go
ahead, but I'm going to work on the ship!"

"O.K., O.K.," said Wallace, getting up. "Don't blow your jets. I hate
the thing as much as you do. Wait a minute and I'll go with you."

The two men began climbing into space suits. In a few minutes they were
dressed in black plastic suits with small round clear plastic helmets.
They stepped into the air lock on one side of the room and closed a
heavy door. Wallace adjusted the valve in the chamber and watched the
needle drop until it showed zero.

"O.K.," said Wallace over his helmet spacephones. "All the air's out.
Open the outer lock."

Simms cranked the heavy handle, and the door in the opposite wall of the
chamber slowly swung open. They stepped out into the airless black void
of space and onto the surface of an asteroid, drifting in the thickest
part of the belt. Surrounding the asteroid were countless smaller
secondary satellites circling the mother body like a wide curving
blanket. The mother body was perfectly hidden from outside observation.
It made a perfect base of operations for the two space pirates.

The freighter that they had used at the concession at the Solar
Exposition and later to make their escape was a far different ship from
the one now resting on the asteroid. Two powerful three-inch atomic
blasters could be seen sticking out of the forward part of the ship. And
near the stern, two gaping holes showed the emplacements for two
additional guns not yet installed.

The two men walked over to the ship, and while Wallace entered the ship,
Simms picked up a cutting torch and ignited it, preparing to finish the
two holes in the stern.

When Wallace reappeared, he was carrying a coil of wire with a double
plug to attach to the spacephones inside their helmets. He jammed the
plug into Simms' helmet and then into his own. Simms' eyes lit up with
surprise as he heard....

"...This is a general emergency announcement from Solar Guard
headquarters. Squadrons A and B of the Marsopolis garrison will proceed
to space quadrants W, sections forty-one to fifty. It is believed that
Gus Wallace and Luther Simms are in that vicinity. Approach with
caution, they are armed with atomic blasters and are believed to be
psychologically unable to surrender. It is believed they will resist
arrest...."

The voice repeated the announcement and added a general call for the
men, if they were listening, to surrender. Wallace pulled out the two
plugs and grinned at Simms.

"Picked it up on the teleceiver inside the ship. Thought you might like
to know how safe we are here."

Simms grinned back, "And how far off the track they are. Where is that
space quadrant they think we're in?"

"Out past Saturn," said Wallace with a grin. "With the Mars garrison
chasing us at one end of the system, we'll hit them on the other and be
gone before they know what happened!"

Simms patted the barrel of the nearest atomic blaster. "And, spaceman,
we're going to hit them hard!"




CHAPTER 10


"Stop your ship and be recognized!"

The rasping voice on the audioceiver was sharp. A command to be obeyed.

Tom turned away from the control board and looked at Strong who was
already reaching for the ship's intercom.

"Full braking rocket thrust, Astro," he yelled into the microphone, "and
make it quick or we'll all be blasted into protons!"

Tom and the captain gripped their chairs tightly as the ship bucked
against the deceleration force of the powerful braking rockets.
Gradually the freighter _Dog Star_ slowed and came to a dead stop in
space.

"Hey!" yelled Astro over the intercom from the power deck. "What's going
on up there?"

"We've just entered the outer circle of defense on the prison asteroid,
Astro," replied Strong. "We have to stop so they can sweep us with their
radar and identify the ship."

"But I sent them a message in Solar Guard code that we were coming,"
interjected Roger who was listening from the radar bridge.

"They still have to make sure it's us," said Strong.

"Identify yourselves!" commanded the voice over the audioceiver again.

"This is space freighter _Dog Star_ under temporary command of Captain
Strong of the Solar Guard," answered Strong.

"What's your business here?" demanded the voice again.

"Interrogation of one of your prisoners. We have sent a coded message,
under code Z for Zebra to your prison commandant, Major Alan Savage. If
you'll check with him, you'll find everything in order," said Strong.

"Very well," replied the voice crisply, and then added, "Remain where
you are. Do not move from your present position or attempt to send any
messages. If you fail to comply with these conditions you will be
blasted!"

"Very well," said Strong, "conditions are understood."

"Boy," chimed in Roger, as he climbed down the ladder from the radar
bridge, "they sure don't want any company here."

"And for good reason," said Strong. "The most vicious criminals in the
whole universe are confined here. Every one of them is capable of
committing any crime in the solar code. And most of them have. The men
here are the worst. They have refused psychotherapeutic readjustment to
make them into new men."

"But I thought they had to go through it, sir?" said Tom.

"No," replied Strong. "Even criminals have certain rights in our
society. They can either remain criminals and stay here, or be
psychoadjusted and given new personalities. The ones that refuse are the
ones on this Rock."

"You mean," gasped Roger, "that the men on this asteroid deliberately
chose to remain criminals?"

"Yes, Manning," said Strong. "Rather than become healthy citizens of the
system, they prefer to stay here and waste their lives in isolation with
no hope of ever returning to society."

"Can they change their minds after they get here?" asked Tom.

"Any time. But when they get this far, they usually stay here. The men
on Prison Rock didn't surrender easily. They are the toughest, most
ruthless men in the universe."

"Attention! Freighter _Dog Star_! Attention!" the audioceiver rasped
into life again. "You have been given temporary clearance. A space
launch will ferry you to the asteroid. You are warned that any weapons
discovered on your person, or acts that may be construed as providing
aid and comfort to the inmates of this prison, will be considered
treason against the Solar Alliance and you will be subject to immediate
disciplinary action."

Tom and Roger glanced at each other, a worried look in their eyes.
Strong just smiled. "Don't worry, boys. That little speech is read to
every visitor to the asteroid."

"Just the same, sir," said Roger huskily, "I would prefer to remain
aboard the _Dog Star_ and give you, Tom, and Astro the pleasure of the
visit."

Strong laughed. "They won't let you, Roger. They'll send up a crew of
guards to search the ship. And the way these boys search makes a customs
inspection look like a casual glance."

"Attention _Dog Star_!" A younger voice suddenly came in on the
audioceiver. "This is Lieutenant Williams aboard the space launch. We
are approaching your starboard catapult deck. Please open the air lock
and take us aboard."

"They sure don't waste any time," commented Tom as he turned to the
audioceiver. "Freighter _Dog Star_, Cadet Tom Corbett to Lieutenant
Williams," he called, "the air lock is open and the catapult deck is
ready to receive you." At the same time, the young cadet turned the
valve that would open the outer air lock to the jet-boat deck.

Five minutes later, the ship was swarming with tight-lipped enlisted
Solar Guardsmen, who spoke to Strong and the cadets with cool courtesy.
These were men who signed up for two years as guards on the Rock after
competing with thousands of other enlisted men. A guard on the Rock was
paid triple wages for the two-year isolation. But more than anything else
the right to wear the bright white patch with a paralo-ray gun in the
center denoting their service as guards on the Rock was prestige envied
even by commissioned officers of the Solar Guard.

After what Tom thought to be the most thorough search he had ever seen
was over, Lieutenant Williams reported to the control deck where Strong
and the cadets had been politely but firmly detained. He informed them
that they were now ready to blast off to the Rock, adding that a more
detailed search of the area between the ship's outer and inner hulls
would be conducted after they had gone.

"You mean," said Tom, amazed, "that you actually search the four inches
between the two hulls? What in the universe could we possibly hide in
there?"

"I don't know, Corbett," replied Williams. "We've never found anything
there." He turned to Strong and smiled. "But there's always a first
time, isn't there, sir?"

"Yes, of course," agreed Strong. "You do a thorough job, Williams. Very
good indeed!"

"Thank you, sir," said Williams. "You know, we've heard about you and
the _Polaris_ unit here on the Rock." He turned to Tom, Roger, and
Astro. "We have a stereo of that mercuryball game you played at the
Academy when you were Earthworms."

"What?" cried Tom. "You mean that game was recorded?"

"It sure was," said Williams. "But we've seen it at least fifty times."

"Well, blast my jets!" said Astro in amazement.

The game was one that the cadets had played when they first entered the
Academy. It had done much to unify the boys into a fighting team.

An enlisted sergeant suddenly appeared, snapping to attention in front
of Lieutenant Williams. "Ready to blast off, sir," he said.

"Very well," said Williams, then turned to Strong and the cadets.
"Follow me, please."

In a few moments the space launch was blasting away from the freighter
and heading for a tiny planetoid in the distance. As they drew near,
Strong and the cadets peered out of the ports to get a view of the
prison, but were disappointed when Williams ordered the ports covered.

He smiled apologetically at Strong and explained, "All approaches are
secret, sir. We can't allow anyone to see where our defenses are
located."

"You fellows certainly believe in keeping prisoners in and visitors
out!" commented Strong.

"Anyone interested in coming to the Rock, sir," said Williams, "is under
natural suspicion."

The three cadets gulped, duly impressed with the severity of the prison
routine.

Soon they felt the unmistakable jar and bump of the small space vessel
touching the surface of the planetoid. The jets cut out suddenly and
Williams stood up.

"Please follow me. Do not speak to anyone, and do not stop walking. Keep
your hands in front of you and maintain a distance of ten feet between
you and the man in front of you."

He walked through the open hatch where a hard-faced enlisted guardsman
stood rigidly, holding a paralo-ray gun at the ready.

With a quick nod to the cadets Strong followed Williams through the
hatch. At ten-foot intervals they followed him out of the hatch, with
Tom bringing up the rear and the enlisted guardsman behind him.

As Tom stepped out onto the surface of the asteroid he wasn't quite sure
what he expected to see, but he certainly wasn't ready for the sight
that greeted his eyes.

As far as he could see, there was grass, spotted with small one-story
buildings. To the left was a single towering structure built of Titan
crystal and on top of it was the largest atomic blaster he had ever
seen. He turned to ask the guardsman about the gun but was motioned
ahead with a curt, "No questions. Keep walking."

Tom continued to walk. He noticed that they were heading for the tower.
As he drew nearer, he could see men walking around a narrow catwalk at
the top. They all carried paralo-ray rifles with miniature grids mounted
on the barrel. Inside the rifle was a tiny radar direction finder. It
was a simple but effective control against escaping prisoners. Each of
the inmates of the Rock wore small metal disks welded to a thin chain
around their waists. The disk was sensitive to radar impulses, and with
no more effort than snapping a thumb catch on the rifle, the guard could
locate and paralyze the nearest disk-wearing inmate.

Tom was so full of questions it was necessary for the guard to warn him
again, only this time in sharper tones.

Entering the tower, they were scrutinized and cleared by an electronic
beam that passed through their bodies and indicated any metal they might
carry. Once through this last barrier, they were escorted to a
slidestairs, where Williams left them.

Throughout the entire procedure few words had passed between the cadets.
Now left alone on the stairs, they couldn't contain themselves and the
comments and questions tumbled out.

"Did'ja see that blaster on top of this place?" Roger blurted out.

"Those radar-controlled paralo-ray rifles are really something!" said
Astro.

"The thing I want to know," said Tom, "is where are the prisoners? I
haven't seen one yet."

"And you're not likely to, either, Cadet Corbett!" said a gruff voice
above them. They turned to see a heavy-set man wearing the uniform of a
major in the Solar Guard, standing on the floor above them. The
slidestairs carried them to his level and Captain Strong hopped off and
extended his hand in greeting.

"Major Savage!" he explained. "Good to see you again!"

"Same here," said Savage, returning Strong's firm handclasp. He turned
and faced the cadets. "So this is the _Polaris_ unit, eh?" He smiled.
"We've really enjoyed the stereo of that game of mercuryball you played
back at the Academy."

"Thank you, sir," said Tom. "Lieutenant Williams has already told us how
much he liked it."

"Come into my quarters and relax. I imagine you could do with some good
solid food after those synthetics on your trip."

"We certainly could, sir," said Strong.

They followed the big man through a sliding panel into a suite of
comfortably furnished rooms. Five minutes later, the cadets and the
officers were enjoying their first hot meal in a week. As they ate,
Major Savage brought up the purpose of their visit. "So you've come to
talk to Bull Coxine, eh?"

"Yes," nodded Strong. "And I don't imagine he has developed any
affection for me."

"No, I wouldn't say he has," replied Savage. "In fact, I don't think
Bull has any affection for anyone, not even himself. Why do you want to
see him, anyway?"

Strong quickly summarized the theft of the adjustable light-key and the
unsuccessful search for Wallace and Simms, concluding finally with the
knowledge of Coxine's association with Wallace.

"I'm hoping Coxine will give me a lead to Wallace's whereabouts," said
Strong.

"Well, you can ask him," shrugged the major. "But personally, I don't
think you're going to get any further than saying hello. If he'll even
let you say that. He hates you, Strong. Hates you in a way I've never
seen a man hate before. When you talk to him, be careful."

"I will," said Strong grimly.

"Don't let him get near you. He's the strongest man I've ever seen. Came
blasted near choking a guard to death with one hand when he escaped. He
could break a man's neck with both hands."

Strong smiled. "Evidently, Major, you haven't noticed the size of Cadet
Astro. I'll take him along with me for protection." He looked at Astro,
who flushed in quick embarrassment.

"Very well, Strong," said Savage. "I'll have a jet car brought around.
You can go right down to his hut."

"Er--may I ask a question, sir?" asked Tom.

The major smiled. "Go right ahead, Corbett."

"It's about this whole setup," explained Tom. "I was expecting fences
and prisoners and--well, most anything but green grass and small white
buildings!"

"The little huts you saw," replied the major, "are as much of a prison
as we have. Each hut holds one prisoner. He has all the necessary
furniture, in addition to audioceivers and story spools which he can
change once a week. He also has basic garden equipment. All prisoners
grow everything they eat. Each man is dependent on himself and is
restricted to the hut and the area around it. If he comes within two
miles of the tower, the guards will pick him up on radar and order him
back. If he comes within one mile, they fire without further warning.
Only one man has ever escaped. Coxine. And that was because we had a
sick man on guard duty, or he never would have made it. He overpowered
the guard, took his uniform, and stowed away on a supply ship. We caught
him a year later."

"Didn't your radar pick up the disk he was wearing, sir?" asked Roger.

"That method of protection was only installed a few months ago," said
the major.

"And the prisoners just sit there--in those little huts?" asked Astro.

"Yes, Astro!" said the major with a tone of finality in his voice. "They
just sit. This is the end of the line."

The three cadets looked at each other and secretly vowed never to take a
chance of doing anything that would send them to the Rock.

Five minutes later, Strong was driving a jet car along a narrow paved
road toward one of the white huts. Astro sat beside him grimly silent,
his hands balled into tight hamlike fists. They rounded a curve and
Strong pulled up in front of the house. As they climbed out of the car,
they could see the trim neat lanes of the little garden with carefully
printed signs on each row indicating what was growing. They started for
the house and then stopped short. Bull Coxine stood in the doorway,
watching them.

Dressed in the snow-white coverall of the prison garb, Coxine faced them
squarely, his thick trunklike legs spread wide apart. He was a giant of
a man with long heavily muscled arms that dangled from a huge pair of
shoulders. His jet-black hair was a tangled unkempt mass, and his face
was scarred and lined. Eyes blazing with unconcealed hatred he waited
for Captain Strong to make the first move.

"Hello, Bull," said Strong quietly. "I'd like to talk to you."

"Oh, you would, huh?" Coxine spat and his lips twisted in a mocking
grin. "What's the matter? Afraid to talk to me alone?" he indicated
Astro. "Did you have to bring one of your Space Cadets for protection?"

"Listen, Bull," urged Strong, "I was your friend once. I turned you in
because you were a mutineer and I was an officer of the Solar Guard. I'd
do the same to this cadet if he tried what you did."

"Yeah, I'll bet you would," snarled the criminal. "Just like a real
friend!" His voice deepened into a low roar. "Don't talk to me about the
old days! I'm on the Rock and you're just another Solar Guard space
crawler to me. Now get out of here and leave me alone."

"I came to ask you to help me, Bull," Strong persisted. "I need
information."

Coxine's eyes narrowed into slits. "What kind of information?"

"You once tried to hold up a Credit Exchange on Ganymede with a man
called Gus Wallace. He had a hide-out in the asteroid belt. I'd like to
know where it is," said Strong.

"Why?"

"I can't answer that, Bull."

"What do I get if I tell you?"

"Nothing, except my thanks and the thanks of the Solar Guard."

"And if I don't?"

"I'll turn around and leave."

"Then start turning, Strong," snarled the giant prisoner, "because I
ain't got nothing to tell you except how much I hate your guts!"

Astro moved forward slightly, but Strong held him back. "O.K., Bull. If
that's the way you want it, I'll leave."

"Why don't you let the young punk try something?" challenged Coxine. "I
ain't had any exercise in a long time."

Strong looked at the huge man and said coldly, "I wouldn't want the
death of a piece of space scum to show on his record."

Then, as if the space and sky overhead had suddenly been torn open,
there was a flash of light followed by the roar of a tremendous
explosion. The ground trembled. The air seemed to moan in agony. Strong
and Astro wheeled around and looked toward the tower that shimmered in
the light of the late afternoon sun. To their horror, they saw the
unmistakable mushrooming cloud of an atomic blast rising in the
synthetic atmosphere behind it.

"By the craters of Luna--" gasped Strong.

A second flash and explosion rocked the prison asteroid and suddenly the
tower disappeared. Almost immediately, a spaceship appeared over the
small planetoid and began systematically pounding the surface
installations with atomic blasters.

"Captain Strong," cried Astro. "Tom and Roger--they were in the tower!"

"Come on," yelled Strong, "we've got to get back!"

"You ain't going nowhere, Strong," snarled Coxine behind him. "I've been
waiting a long time for this!" He suddenly struck the Solar Guard
officer with a heavy rock and Strong slumped to the ground unconscious.
Before Astro could move, Coxine smashed him to the ground with a blow on
the back of the neck. They both lay deathly still.

Then, as the atomic bombardment of the penal asteroid continued, the
giant space criminal jumped into the jet car and sped away.




CHAPTER 11


"Fire!" bawled Major Savage to his crew of gunners.

At the other end of the field one of the remaining two undamaged rocket
destroyers blasted off to battle the invading spaceship.

Tom and Roger had been on a tour of the great central tower with Major
Savage when the attack came and had been ordered to find safety in the
open fields. The major knew the tower would be one of the first targets.

Sprawled on the ground behind a bunker, they saw the major, his space
jacket torn from his back, standing in the middle of the field, quietly
issuing orders to scarlet-clad spacemen, desperately trying to organize
the penal asteroid's defenses.

The spaceship, which had somehow managed to penetrate the tight radar
warning screen around the prison, had struck with merciless precision.
Again and again, its atomic blasters had found the most important
installations and had wiped them out. The first target, after the tower
had been shattered, was the underground launching ramps for the
asteroid's small fleet of rocket destroyers. But even after a direct
hit, the guards were able to ready two ships to fight the attacking
spaceship. The first was already diving in, her small one-inch blasters
firing repeatedly.

Suddenly, Lieutenant Williams, in command of the second ship, came
racing up to Major Savage, to report that his radarman had been hit and
the ship couldn't blast off.

"Here's where I get into the act!" Roger jumped up immediately, and with
a brief "So long, spaceman" to Tom, raced off to join Lieutenant
Williams.

"Spaceman's luck," yelled Tom as the officer and the cadet ran toward
the waiting ship.

Looking skyward again, Tom saw the first destroyer diving toward the
attacking spaceship, trying to get in range with her lighter armament.
Suddenly there was a burst of brilliant light. The lighter ship had been
completely destroyed by a direct hit.

Sick with horror, Tom looked away and watched the ship Roger had joined
blast off under full acceleration. It roared spaceward in a straight
line, disappearing at incredible speed.

Meanwhile, the invader continued to blast relentlessly.
One--two--three--four--automatic reload--one--two--three--four, reload.
Over and over, firing at seemingly peaceful fields of grass, only to
strike an armory, space cradle, or supply depot buried underneath the
ground. Suddenly it changed its course and trained its guns skyward. Tom
looked up and saw a tiny flyspeck roaring straight down at the ship. It
was Lieutenant Williams' rocket destroyer, with Roger on the radar
bridge, in a suicidal attempt to destroy the invader. But the larger
ship was ready. The two forward blasters opened fire. A flaming ball of
light exploded near the stabilizer of the destroyer and it fell off
course to float helplessly in free-fall orbit around the asteroid. Still
lying on the ground, Tom sighed with relief. At least Roger was all
right.

Then the young cadet saw the invading spaceship move away from the area
around the tower toward the horizon not too far away on the small
planetoid. He followed it with his eyes and saw it suddenly land near a
cluster of white prisoner huts. Tom gasped as the reason for the attack
became clear.

"Major! Major! Major Savage!" he called as he raced across the field.
But the major was nowhere to be seen. A guard carrying a medical kit
hurried past him and Tom grabbed him by the arm.

"Major Savage! Where is he?"

The guard pointed to a near-by stretcher and Tom saw the unconscious
figure of the major sprawled on the plastic frame.

"But--but the prisoners are getting away!" yelled Tom.

"I can't do anything about it. I've got wounded men to care for!" The
man jerked away and disappeared in the smoky, choking dust.

The curly-haired space cadet, his face blackened from the smoke, his
lungs crying for fresh air, started across the blast-pitted field,
looking for help. But there was none to be had. Suddenly he wheeled in
the direction of the spaceship and started to run toward it.

As soon as the young cadet had left the smoking area around the wrecked
tower, he realized that it was the only section of the small satellite
that had suffered attack. Ahead, he could see the prisoners in their
white suits crowding around the stabilizer air lock of the invading
ship.

Tom dropped to his stomach and watched the knot of men. Suddenly the
air-lock portal slid open. There was a loud cheer and the prisoners
began scrambling aboard.

Tom knew he would have to move fast. Taking a dangerous chance, he rose
to a half-crouch and dashed to one of the small white huts only a
hundred feet away. With a final glance at the thinning crowd of escaping
men around the ship, he ran straight for an open window, diving headlong
through it.

Inside, Tom waited breathlessly for a shout or warning that he had been
seen, but none came. He glanced through the window and saw that only
seven or eight men remained outside the port. He turned away quickly and
began searching the hut.

He found what he was looking for rolled up on the bed where its owner
had used it as an extra pillow. He shook out the prison suit of white
coveralls, stripped off his own blue cadet's uniform, and hurriedly put
on the distinctive prison gear. It was a little large for him and he
rolled up the sleeves and trouser legs, hoping no one would notice in
the excitement. Then, with a deep breath, he stepped out of the hut into
full view of the prisoners still left at the air lock.

"Hey, wait for me!" he yelled, running for the ship.

The men paid no attention in their haste to get aboard the ship. When
Tom reached the air lock, there were only two left. He slapped the
nearest man on the back.

"Pal, I've been waiting for this a long time!"

"Yah," the man answered, "me too!" Then he looked at Tom closely. "Say,
I've never seen you around here before!"

"I just got in on the supply ship last week. They kept me in the tower
for a while," Tom replied.

"Oh, well," said the man, "they ain't keepin' anybody there anymore!"

"Come on you guys," snarled a heavy-set man in the air lock above them.
"We ain't got all day!"

Tom looked up, and without being told, he felt he was looking into the
face of Bull Coxine. And when the other prisoner spoke, he was certain.

"Yeah, Bull," said the man. "Comin', comin'!" He reached up and Bull
grabbed his outstretched hand. When Bull pulled, the man literally
leaped through the air into the air lock.

"All right, space crawler," roared Bull to Tom, "you're next!" The big
man stuck out his hand. Tom gulped. For one desperate second he thought
of turning and running away.

"Well?" growled Bull. "You coming or ain't cha?"

"You're blasted right I'm coming," said Tom. "This is one time the Solar
Guard is taking it on the chin. And, crawler, am I happy to see it!"

He grabbed Bull's hand and was lifted as easily as if he had been a
feather. Coxine dropped him on the deck and turned away without a word
to disappear inside the ship.

As he looked around, Tom suddenly felt a cold shiver run through his
body. He felt as if he had signed his own death warrant. There was no
mistake about it. The ship was the same one he had watched night after
night at the exposition on Venus. And the names of the two owners
exploded in his brain. "Wallace and Simms!"

He turned to jump out of the air lock, but it slid closed in front of
him. He was trapped.

       *       *       *       *       *

Sprawled on the ground in front of one of the white houses near the
tower perimeter, Captain Strong stirred, shook his head, and painfully
rose to a half-crouch. With eyes still dulled by shock, he looked around
to see Astro lying unconscious a few feet away. His brain still reeling
from the effects of Coxine's sneak attack, he staggered over to his
knees beside him.

"Astro, Astro--" Strong called. "Astro, snap out of it!"

The big Venusian moaned and opened his eyes. He sat bolt upright.
"Captain Strong! What happened?"

"I'm not too sure, Astro," said Strong. "All I remember is Coxine
slugging me."

As they struggled to their feet, they suddenly noticed the towering
columns of smoke rising into the air.

"By the rings of Saturn!" gasped Strong. "Look, Astro!"

"Blast my jets!" cried the big cadet. "What--what could have happened?"

The two spacemen stood gaping at the shattered remains of the tower and
the smoldering area around it. In the distance, scarlet-clad guardsmen
moved dazedly around the wreckage and above them a rocket destroyer was
blasting on one jet, coming in for a touchdown.

"Astro," said Strong grimly, "I don't know how it could have happened,
but the prison asteroid has been attacked. A rocket-blasting good job of
it! Come on! We've got to get over there!"

"Yes, sir," said Astro. As they started running toward the field, he
searched the figures moving about in the distance for two familiar blue
uniforms. "I don't see Roger or Tom, sir," he said hesitantly. "Do you
think--?"

"We'll just have to wait and see," interrupted Strong grimly. "Come on,
step it up!"

As the two spacemen approached the smoking ruins of the underground
cradles, ammunition dumps, and repair shops, they passed groups of men
digging into the rubble. In sharp contrast to the careful scrutiny they
had received when they first arrived at the prison, no one noticed them
now. Strong stepped up to a man in a torn and dirty sergeant's uniform.

"What happened?" he asked.

The man turned and looked at Strong and Astro. Aside from the swollen
bump on the Solar Guard captain's head and the bruise on the cadet's
neck there were no signs of their having been in the attack. When the
guardsman finally replied, there was a sharp edge to his voice. "I
thought _everyone_ knew we were attacked, _sir_!" He turned back to a
detail of men who were watching. But Strong pulled the man up sharply.

"Attention!" he barked. The sergeant and the crew came to stiff
attention. Strong stepped forward and looked the guardsman straight in
the eye. "Under any other circumstances, Sergeant," snapped Strong, "I'd
have your stripes and throw you in the brig for your insolence! Now I
want a clear account of what happened. And I want it blasted _quick_!"

"Yes, sir!" stammered the guardsman, realizing he had gone too far. He
hurriedly gave a detailed description of the battle, ending with a
report that Major Savage had been injured and that Lieutenant Williams
was now in command of the prison.

"Where will I find Lieutenant Williams?" asked Strong.

"At the rocket destroyer, sir. It just landed."

"Very well, Sergeant!" said Strong, adding in a gentler tone, "I realize
you've had a rough time of it, so we'll forget what just happened. Get
back to your work."

As Astro followed the Solar Guard captain toward the rocket ship he saw
a familiar figure standing near the air lock. A boy with close-cropped
blond hair and wearing cadet blues.

"Roger!" yelled Astro joyfully. "Captain Strong, look! It's Roger!"

They quickened their pace and were soon beside the small space vessel
that had been blasted out of commission before it could fire a shot.
While Roger was telling them of having volunteered for radar operations
aboard the ship and of their being disabled by a near miss, Lieutenant
Williams suddenly appeared in the air lock and saluted smartly.

"Major Savage has been injured, sir," said Williams. "Since you are the
highest ranking officer on the asteroid, are there any orders?"

"I'm not acquainted with your men, or your prison, Williams," replied
Strong. "I'll accept the command as a formality but appoint you my chief
aid. Carry on and do anything necessary to get things cleared away."

"Very well, sir," said Williams.

"Have communications been destroyed?"

"Yes, sir. Communications was located in the tower, but Cadet Manning
has converted the equipment on ship for long-range audio transmission."

"Very good!" said Strong. "As soon as you get a chance, I want you to
make out a full report on the attack, including your personal opinion of
who attacked us and why."

"I don't know who manned that ship, sir," said Williams, "but I can tell
the reason all right. Every prisoner on the asteroid has escaped!"

"Yes," mused Strong. "I thought that would be the answer. But how did
that ship get through your defenses?"

"Captain Strong," said Williams grimly, "I don't think there is any
question about it. Someone broke the asteroid code. The attacking ship
identified itself as the regular supply ship."

"A Solar Guardsman?" asked Strong.

"No, sir," said Williams. "I'd bet anything that none of our men would
do that!"

"Then who?" asked Strong.

"Only one man would be smart enough to get the code and break it, and
then sneak it off to the attacking ship!

"Who?" asked Strong.

"Bull Coxine!" answered the young officer through clenched teeth.

They were interrupted by a guardsman. "Sir, we found this in prison hut
twenty-four."

"What is it?" asked Strong.

Astro's eyes suddenly widened and he stepped forward. "Why,
that's ... that's Tom's uniform!" he stammered.

"Tom!" gasped Strong. "But where is he?"

"We've searched the immediate area, sir," replied the guardsman. "Cadet
Corbett isn't here."

"Are you sure?" demanded Strong.

"Yes, sir," said the guardsman stoutly.

Strong took the uniform and examined it carefully. Then he turned to
Roger and snapped, "Prepare the audioceiver for immediate transmission
to Space Academy, Manning. Astro! Get aboard our ship. Check her for
damage and let me know how soon we can blast off!"

The two cadets saluted and raced for the small spaceship.

Thoughtfully holding Tom's uniform in his hand, Strong turned back to
Williams. "I'm going to leave as soon as I can, Williams. I'll tell
Space Academy about the attack and see that a relief ship is sent out to
you right away. Meantime, I'm leaving you in command." He paused and
looked at Tom's uniform again. "If Cadet Corbett isn't on the asteroid,
he must be on the attacking ship with the prisoners. The only question
now is, do they know it?"

"You mean he smuggled himself aboard?" asked Williams.

"I'm almost sure of it!" said Strong. "And if he _is_, he's going to try
to get some sort of message out. I've got to be ready to pick it up."

Strong paused and looked up at the sky overhead, still thick with smoke.
"And if he does ask for help, I'm going to answer him with the biggest
fleet of spaceships he'll ever see in his life!"




CHAPTER 12


"Stand by, you space crawlers!" roared Bull Coxine into the microphone,
but the loud laughter and singing of the noisily celebrating prisoners
continued unabated over the intercom's loud-speakers. "Avast there!" he
bellowed again. "Stow that noise! Attention! And I want _attention_!"

Standing on the control deck of his ship, Coxine waited as the men
gradually quieted down. No longer wearing the white prison coverall, he
was dressed in a black merchant spaceman's uniform, the snug-fitting
jacket and trousers stretching tightly across his huge shoulders. He
wore a black spaceman's cap, and two paralo-ray pistol belts were
crisscrossed over his hips.

"Now listen to me!" he roared again. "Let's get one thing straight! I'm
the skipper of this ship and the first man that thinks he's smarter than
me, let him speak up!"

There was a long pause and the big man added with an ominous whisper,
"But I warn you, if one of you opens your mouth, you'll take a swim in
space!"

There was an angry murmur among the prisoners that Coxine heard over the
intercom. "Don't think I can't take care of you, the lot of you, one by
one or all at once. I cut my milk teeth on mutiny. I know how to start
one and I know how to finish one! I needed a crew and that's the only
reason you're here! Any spaceman that doesn't like the way I run things
aboard this ship, better keep it to himself, or start swimming back to
the prison asteroid!" He paused. "Well? Are you all with me?"

There was a chorus of cheers on the intercom and Coxine nodded grimly.

"All right," he continued, "now that we understand each other, I'll get
on with the business. Second-in-command to me will be Gus Wallace.
_Lieutenant_ Wallace!"

A roar of approval came over the loud-speaker.

"Third-in-command--Luther Simms! _Lieutenant_ Simms!"

There was another roar of approval as the prisoners recognized the names
of the men who had liberated them from the asteroid.

"Now, we'll handle this ship as if it were any other freighter. The
following men will be in charge of departments!"

As Coxine read off the list of jobs and the men to handle them, there
were yells of approval and disapproval for favorites and old enemies.
When the list of names had been read, he turned away from the intercom
and faced his lieutenants, Wallace and Simms.

"Well, skipper," boasted Wallace, "it looks like we're in business
again!"

"Yeah," chimed in Simms. "In three hours we'll be on our own asteroid
and we can start planning our first strike!"

Coxine's eyes narrowed into slits. "Get this, both of you!" he snapped.
"What I said to those crawlers down below goes for you too. I'm the boss
of this outfit and you don't even guess about what we're going to do,
until I say so!"

"But, Bull--!" whined Wallace.

"Shut up!" roared Coxine. "And when you talk to me, you call me
captain!"

Wallace and Simms looked at each other. "O.K., Captain," muttered Simms.

"Yes, _sir_!" corrected Coxine.

"Yes, sir," said Simms quickly.

"That's better," growled the giant spaceman. "Don't get the idea that
just because you were able to follow orders that it makes you smart.
Because it doesn't! It took me two and a half years to get the
information collected onto these story spools and smuggle them out to
you. Everything, from where to buy this spaceship to getting the
light-key out of the time capsule, was my idea! My brains!"

"Sure, Captain," said Wallace, "but we took the chances!"

"Yeah," sneered Coxine. "You took chances! The only chance you took was
in not paying attention to what I told you to do. I gave it all to you.
Where to hold up the first freighter passenger, what to take, how to
mount the atomic blasters, what code to use in getting through the
prison defenses. The whole works! And I did it while sitting on the
toughest Rock in the system. I smuggled it out right under the noses of
those Solar Guard space crawlers. So forget about being smart, or you'll
wind up with that scum below decks!"

"Yes, sir!" said Wallace.

"Now get me a course to the asteroid and make it quick. And have some
decent grub sent up to my quarters right away!"

The big man turned lightly on the balls of his feet and disappeared
through the hatch. After a moment, Wallace turned to Simms.

"That big space-crawling bum!" snorted Wallace. "I oughta blast him!"

"Go ahead!" sneered Simms. "You were the one who wanted to get him off
the Rock, not me!"

"Aw shut up!" snarled Wallace. He turned to the intercom and began
barking orders to his new crew.

       *       *       *       *       *

Tom Corbett sat in one corner of a cargo compartment that had been
converted into sleeping quarters, watching the celebrating prisoners.
Someone had broken into the galley stores and mixed a concoction of
fruit, alcohol, and reactor priming fluid to make a foul-tasting rocket
juice. The men sat about in various stages of undress as they changed
from the white prison coveralls to the black uniforms of the merchant
spaceman, and drank heavily from a huge pot of the liquid.

One of the men, short and stumpy, but with shoulders like an ape, was
standing on a table boasting about his strength. He was stripped to the
waist and Tom could see the powerful arms and chest beneath the black
hair that covered his body. As he continued to brag, the prisoners
laughed and jeered, calling him Monkey. The man's face reddened and he
offered to fight anyone in the room. A short, thin man with a hawk nose
sitting next to Tom yelled, "Monkey," and then darted behind a bunk. The
man turned and looked angrily at Tom.

"You there!" the man on the table called, looking at Tom. "You call me
Monkey?"

Tom shook his head. Since the blast-off he had stayed away from the men
as much as he could, certain that sooner or later someone would
challenge him and discover he wasn't a prisoner. He hoped to remain
aboard the ship long enough to plant a signal for the Solar Guard to
follow. Tom felt almost certain they would be heading for Wallace and
Simms' hide-out. And so far, the men had been so excited over their new
freedom they hadn't bothered him. He had managed to sit quietly in the
corner of the storage compartment and watch them.

"I'm talking to _you_!" shouted the hairy man, looking straight at Tom.
"You called me Monkey and then lied about it! Maybe you're scared, eh?"

He slipped off the table and advanced toward Tom. The young cadet tried
to figure a way out of the threatening fight. He wasn't afraid of the
man, but he didn't want to draw attention to himself. And one of the
surest ways of letting Wallace and Simms know he was aboard ship was to
get into a fight. He couldn't risk discovery. He had to signal the Solar
Guard before he was caught. But how to get around the hairy, drunken
criminal now standing over him?

Tom looked up and saw that the man would not be put off. He would have
to fight. He took notice of the powerful arms and shoulders, and decided
his best bet would be to stay away, but glancing around quickly he saw
there wasn't any room to retreat. The other prisoners were crowding
around, eager to watch the fight. Suddenly his opponent let out an
animal-like roar and jumped to pin him down on the deck.

The young cadet timed his move perfectly. As the man's body came down on
him, he threw up both legs and caught him in the pit of his stomach. Tom
could feel his feet sink deep into the man's mid-section as he kicked
out hard and sent him sprawling against the bulkhead. With a bellow of
rage, the hairy man picked himself up and charged back at Tom, who was
now on his feet, braced to meet him.

[Illustration: _The young cadet timed his move perfectly_]

As the prisoners began to roar, Tom side-stepped and back-pedaled
frantically, trying to get out of the impossible situation. If he won,
there would be questions for him to answer. Questions that would be
difficult and might betray his identity. But if he allowed Monkey to
win, he might die right there on the deck. The man was blind with rage
and would stop at nothing.

The man rushed in again and, unable to back away, Tom felt the hairy
arms close around him in the most powerful grip he had ever felt in his
life. Slowly, evenly, Monkey applied pressure. Tom thought his ribs
would crack. His head began to swim. The faces around him that laughed
and jeered suddenly began to spin around him dizzily.

Then, with the desperation of a man facing death, Tom began to push
outward, his arms under Monkey's chin. The man tried to apply more
pressure but the cadet fought him, forcing his head back farther and
farther. The prisoners were silent, watching the deadly battle. Then,
gradually, Tom felt the hairy man's grip relaxing. With the last ounce
of his strength he burst out of the encircling arms and staggered back.
The ape man looked at him stupidly and then down at his arms as if they
had betrayed him. With a roar, he came rushing in again. Tom set
himself, left foot forward, shoulders hunched, and when Monkey came
within arm's length, he swung with all the strength he had left in his
body. His fist landed on the point of Monkey's chin. There was a
distinct sound of crushing bone and Monkey sank to the deck, out cold.
Gasping for breath, Tom stood over the sprawled man and just looked at
him. The crowd around him was staring at the fallen man in disbelief.
Through the roaring in his head, Tom could hear their voices, "He broke
out of Monkey's grip!" "He broke the guy's jaw with one punch!"

Tom turned blindly to the corner where he had been sitting and slumped
to the deck. Someone shoved a cup in his hands and he gulped its
contents blindly, hardly tasting the foul rocket juice or feeling it
burning his throat.

The cadet was sure now that he would be caught. Monkey had been a
popular member of the crew and some of his friends were certain to even
the score. But to Tom's surprise, there were no questions and a few of
the men came over to pat him drunkenly on the back. A couple of them
dragged the unconscious man out of the compartment and up to sick bay.
The others soon forgot the fight and continued their merrymaking.

Tom sat alone and silent in the corner, his strength returning slowly.
He had faced his first obstacle and had won. But he knew that what lay
ahead of him made the fight insignificant by comparison. He decided his
next move would be to acquaint himself with the ship and, if possible,
get a paralo-ray gun.

As the men continued their drunken singing and yelling he mumbled an
excuse about soaking his fist in cold water and managed to escape from
the crowded compartment.

Outside in the passageway, the cadet began to figure out the plan of the
ship, first locating the power deck by its roaring purr. He climbed a
ladder to the next deck, walked slowly down the passageway toward what
he thought to be the control room, and leaned against the hatch. He
heard the soft tinkle of a radar signal and his heart skipped a beat. He
had stumbled onto the astrogation and radar bridge. Wondering if he
should burst into the room and attempt to overpower the men on duty, or
wait for a better chance later, he was suddenly startled by a sharp
voice in back of him.

"You--spaceman!" Tom turned to stare right into the face of Bull Coxine!

The big man looked at Tom with piercing eyes.

"What's your name?" demanded Coxine.

"Uh--uh--they call me the Space Kid!" he finally managed.

"Space Kid, eh?" mused Coxine. "I don't remember seeing you on the
Rock."

"They held me in the tower for a month trying to make me take the
psychograph rehabilitation. I got out when the blasting started."

"What were you on the Rock for?" asked Coxine. "You're pretty young to
be sent to the Rock."

Tom thought desperately of a crime he could have committed that would
send him to the prison asteroid. Suddenly he got an idea. He looked at
Coxine and spoke in as harsh a voice as he could.

"Listen," he snarled, "I just broke Monkey's jaw for treating me like a
kid. I hope you don't crowd me into fighting you by asking so many
questions. Y'see I won't answer them and then you'll have to freeze me."
Tom paused and tried to gauge Coxine's reaction. But he couldn't see a
thing in the cold staring eyes. "And," Tom continued, "if you freeze me,
you'll lose a better man than most of the scum in your crew!"

Coxine stepped forward and towered over the curly-haired cadet. When he
spoke, his deep voice echoed in the deserted passageway.

"What was your rating as spaceman before you hit the Rock?" asked the
big man.

Tom's heart raced. If he could get to the control deck or the radar
bridge, he could send his signal easily. But he realized quickly that in
either of these places he would be spotted almost immediately by Wallace
or Simms. He had to stay away from them and wait for a later chance.
Tom's mind raced.

"I was a gunner on a deep spacer," he drawled confidently. "I can take
the space tan off a crawler's nose at a hundred thousand yards with
anything from a two-inch to a six-inch blaster."

Coxine's eyes sharpened. "Where did you learn to use a six-incher?
They're only on heavy cruisers of the Solar Guard!"

Tom could have bitten his tongue off. He had slipped. He thought
quickly. "I was an enlisted spaceman in the Solar Guard."

"Why'd you get sent to the Rock?"

"My officer was a smart-alec lieutenant just out of Space Academy. We
got in a fight--" Tom didn't finish the sentence.

"And you were kicked out, eh?"

"No, sir," said Tom. "I hit him so hard--he never woke up again. I had
to blast out of there, but they caught me."

"All right," said Coxine. "Report to the gunnery chief. Tell him I said
you're second-in-command." The big man turned and walked away from the
cadet without another word.

Tom watched him disappear and smiled. He had faced two impossible
situations, the fight with Monkey and now this meeting, and he had come
out on top in each. Perhaps he had a chance, after all.




CHAPTER 13


"Any report from the search squadrons yet, Steve?" asked Commander
Walters.

"No, sir," replied Captain Strong. "We're concentrating on the asteroid
belt, but so far we've drawn a blank."

"Well, keep trying and let me know the minute something turns up," said
Walters.

"Yes, sir," said Strong, saluting his commanding officer as the elder
spaceman left the room. He turned back to a large desk in the center of
the room where Roger Manning was busy noting figures on a large chart,
showing the areas already covered and listing the squadrons engaged in
the search.

As Strong leaned over his shoulder, Roger placed a finger on the chart.
"Squadron Ten has just completed a search of all asteroids in their
assigned area," he said, then added laconically, "Nothing."

Strong studied the chart a moment. "Well, we'll have to keep it up," he
said. "It's the only way we'll find them. A systematic search of the
belt from end one to the other." He paused and then muttered, "Only one
thing I'm worried about."

"What's that, sir?" asked Roger.

"That when we do find them, it'll be too late to help Tom."

"You really think he's aboard Coxine's ship, Captain Strong?"

"Couldn't be anywhere else," answered Strong. "And he'll be trying to
signal us, you can bet on that. Keep me posted on all radar contacts
made by the search squadrons. I want a continuous six-way radar sweep by
every ship."

"Yes, sir," said Roger.

"One more thing," said Strong, "tell Astro to get the _Polaris_ ready to
blast off. And you make sure your radar bridge is in A-one condition."

"Are we blasting off, sir?" asked Roger.

"Every ship we can get into space will give us a better chance of
finding Coxine and his crew. Now that we've got the search fully under
way there's no need to hang around here any longer."

"Glad to hear it, sir," replied Roger. "I was getting a little itchy to
hunt for those crawlers myself. And Astro can hardly keep still."

Strong smiled. "Don't worry, we'll find Tom," he said. "Wherever he is,
you can bet he's taking care of himself and doing a good job for the
Solar Guard."

Roger's eyes twinkled. "Oh, I wasn't so worried about Tom as I was
Astro, sir. He'll be pretty mad if there isn't anything left of Coxine
to pay him back for slugging him."

Strong rubbed his head and said grimly, "Astro's not the only one!"

The blond-haired cadet left the room, and Strong wearily turned back to
study the chart of the search in the asteroid belt.

Immediately upon arrival at Space Academy, two days before, Strong had
been placed in charge of the search by Commander Walters. The attack on
the prison asteroid and the escape of the prisoners had created the
biggest sensation in his life. From one end of the Solar Alliance to the
other, the visunews and the stereos were full of the attack and escape
details, with Strong's name appearing often in the headlines and news
flashes. To search the asteroid belt had been his suggestion, and while
he could offer no proof, he believed the attacking ship had been
commanded by Wallace and Simms. Speaking only to Commander Walters,
Strong had received permission to combine the search for Wallace and
Simms, with the new hunt for Coxine. Strong was convinced that Coxine
was behind the activity of Wallace and Simms, from the beginning at the
Solar Exposition to the present.

Strong looked at his watch. It was past midnight. He flipped a switch
and paged Lieutenant Moore on the central communicators. In a few
moments the young officer appeared and saluted smartly.

"Take over here, Moore," said Strong. "I'm going to sack in for a little
rest and then take the _Polaris_ out. I'll be in constant contact with
you and will direct search operations from the _Polaris_. You stand by
here and relay all reports. We'll use code 'VISTA' for all contacts."

"Yes, sir," said Moore. "Shall I work up charts like that one?" He
pointed to the chart left by Roger.

"Statistics here at the academy will handle that," replied Strong. "Just
shoot the information down to them as you receive it. And you'd better
get someone else up here to help you. You'll be here a long time."

Moore saluted and Strong walked wearily from the room. There wasn't any
need for cleverness now, thought the Solar Guard captain. When we catch
Coxine, he'll fight. And when he fights, that will be the end of him!

He went to his quarters and in thirty seconds was asleep.

       *       *       *       *       *

"Radar bridge to control deck!" A voice crackled over the intercom
aboard the newly named pirate ship, _Avenger_. "Hullo, control deck!
Come in!"

"Yeah?" roared Bull Coxine. "Whaddya want?"

"Picked up a blip on the radar, Captain," replied the radar officer.
"Looks to me like the jet liner from Mars to Venus."

"Relay the pickup to the control-deck scanner and let me take a look at
it," ordered Coxine.

In a moment the big pirate was studying the scanner carefully. Wallace
and Simms stood to one side. Coxine turned and looked at them with a
hard glint in his eyes. "That's the jet liner, all right!" He rubbed the
palms of his huge hands together and smiled thinly. "It looks like we're
in business!"

Wallace stepped forward. "You mean, you're going to--?"

"I'll tell you what I mean," snapped Coxine, "when I want you to know
it!"

He turned to the intercom and began to bawl orders into the microphone.

"All hands! Stand by your stations for attack!"

There was an answering roar of approval from the crew.

"We're making our first strike, you space crawlers! A jet liner from
Mars to Venus. There'll be lots of fancy things aboard her. Things the
Solar Guard wouldn't give you on the Rock!"

There was another roar over the loud-speaker.

"But the first man that takes anything but what I tell him will find
himself on the wrong end of two big fists!"

"We're closing in, Captain," interrupted the voice from the radar
bridge. "The angle of approach is in our favor. I don't think they've
seen us yet!"

"Keep watching her, Joe," replied Coxine, and turned to his two henchmen
on the control deck. "You, Wallace! Take number-one jet boat. Russell,
Stephens, Attardi, and Harris. Each man will take a paralo-ray pistol
and rifle. Report to your boat when I give the order."

There was a pause as the men named scurried to their stations. Coxine
continued, "The following men will come with me in boat number two.
Shelly, Martin, and the Space Kid. The rest of you man the forward and
aft blasters. But no one fires until Lieutenant Simms gives the order!"

He turned to Simms and stared at the man coldly. "I'll be in contact
with you all the time. You'll fire when I say to fire, and not before.
Is that clear?"

Simms nodded.

"Range-fifty thousand yards to liner, Captain!" reported the radar
bridge. "I think she's sighted us!"

"Forward turret!" roared Coxine. "Put a blast across her bow just to
show how friendly we are!"

"Aye, aye, sir," acknowledged a voice from the gun turret.

In the turret Tom listened to the orders to attack the helpless
spaceship with mounting anxiety. If he could only plant the signal on
the _Avenger_ before going to the liner, he might be able to remain
aboard the passenger ship and escape. He was interrupted in his thoughts
by a rough voice in back of him.

"Hey, Kid! Space Kid!" yelled Gaillard, the commander of the gun turret.
"Come on! You heard the orders, didn't you? Get me the range."

"Right away," answered Tom. He stepped to the range finder, quickly
figured the speed of the jet liner, their own speed and the angle of
approach. Racking them up on the electronic tracker, he turned back to
Gaillard, "Let her go!"

"Fire!"

There was a thunderous noise and the _Avenger_ rocked gently in recoil
from the heavy blast. Tom quickly sighted on the range finder and saw a
ball of light flash brilliantly in front of the passenger ship. He
breathed a sigh of relief. He had to keep up his avowed reputation of
being a crack marksman and at the same time could not damage the unarmed
passenger ship. The shot had been perfect.

"Good shooting, Kid," roared Coxine from the control deck.

"Thanks, skipper," said Tom, aware that he had not called Coxine
captain, but knowing that his earlier speech to the giant pirate had
earned him a certain amount of respect.

Coxine quickly made contact with the captain of the liner on the
teleceiver and the outraged captain's face sharpened into focus on the
screen aboard the _Avenger_.

"By the craters of Luna," exploded the skipper of the passenger ship,
"what's the meaning of this? There are women and children aboard this
vessel."

Coxine smiled thinly. "My name's Bull Coxine, master of the vessel
_Avenger_. One funny move out of you and I'll blast your ship into
protons! Stand by for a boarding party!"

"Captain! Captain!" the radar operator's voice screamed over the
control-deck loud-speaker, "they're trying to send out a signal to the
Solar Guard!"

"They are, huh?" roared Coxine. "Forward turret, check in!"

"Turret, aye!" reported Tom. He had been left alone while Gaillard
issued small arms to the boarding parties.

"Listen, Kid!" roared Coxine. "You said you're a good shot. Right now is
the time to prove it. Blast away her audio antenna!"

Tom gulped. At a range of fifty thousand yards, the antenna, a thick
piece of steel cable, might as well have been a needle to hit.

"Right, skipper," he finally replied. "I'll show you some of the
fanciest shooting you'll ever see in your life!"

He turned back to the range finder, his mind racing like a calculating
machine. He figured the angles of the two ships, considering that the
jet liner was a dead ship in space and the _Avenger_ still under way,
but slowing down at a specific rate of deceleration. He rechecked his
figure a third and fourth time, correcting his calculations each time
with the forward movement of the _Avenger_. If he misjudged a fraction
of a degree, he might kill or injure hundreds of people aboard the
passenger vessel.

"Well?" roared Coxine. "Are you going to fire or not?"

"Coming right up, skipper!" shouted Tom. "Watch this!"

Steeling himself, lest he should hit the ill-fated ship, he fired. For a
brief moment he felt sick and then heard the roar of the pirate captain
from the control deck.

"By the rings of Saturn," roared Coxine, "that was the best shot I've
ever seen! Well done, Kid! All right, boarding crews! Man your boats and
stand by to blast off!"

While Coxine vocally lashed the members of the murderous crew into
action, Tom tried to figure out some way to get to the radar deck
unseen. Being assigned to the jet boat with Coxine, instead of Wallace,
had been a lucky break and Tom wished for a little more of the same.
Lining up with his boarding crew, he received his paralo-ray pistol and
rifle from Gaillard, deftly stealing a second pistol while the gunnery
officer's back was turned.

After hurriedly hiding the stolen gun, he slipped stealthily topside to
the radar bridge. Reaching the hatch, he was about to open it, when he
heard footsteps. He turned and saw a man walking toward him. It was
Simms!

"Where in the blasted universe is the jet-boat deck?" snarled Tom. He
dropped his rifle on the deck and bent over to pick it up, hiding his
face.

"You're on the wrong deck," said Simms. "Two decks below. Get moving!"

The pirate lieutenant hardly gave the cadet a glance as he brushed past
and entered the radar bridge. Tom caught a fleeting glimpse of the
interior. His heart jumped. The bridge was exactly like the one on the
_Polaris_! Though annoyed that his chance had slipped past, Tom was
thankful to learn that the communications equipment was thoroughly
familiar.

"Space Kid! Report to the jet-boat deck on the double!" Coxine's voice
rumbled through the empty passageway. Tom dashed down the nearest ladder
and hurried to the jet-boat deck where the pirate captain waited
impatiently.

"I was checking the range and setting up to blast the liner in case they
try anything funny," explained Tom. "I don't trust anyone on that range
finder but me!"

Coxine chuckled. "Good work, Kid. I like a man that thinks ahead. Maybe
I made the wrong man gunnery chief." He climbed into the jet boat. "All
right, take the controls, Kid. Shelly and Martin, get in the stern." The
men climbed in and Tom slid under the controls and waited for the order
to blast off.

Wallace and his crew were on the opposite side of the ship, so Tom had
no fear of being recognized until they were all on the passenger ship.
At his side, Coxine spoke to Wallace in the other jet boat over the
audioceiver.

"We'll split up. I'll handle the control deck and you go aft to the
supply lockers. Dump everything out in space and we can pick it up
later. Search the passengers, but no rough stuff. The first man that
puts his hands on anyone will never know what hit him!"

Tom listened to the pirate captain's orders and was forced to give the
man credit for his tight control over his murderous crew. However
rebellious he might be against the Solar Guard, and whatever it was that
made the man become the system's most notorious criminal, his orders
spoke for themselves.

"All right, Kid," roared Coxine, "blast off!"

Tom pressed the control pedal at his foot and the small ship shot out
into the black void of space. Ahead of them, thousands of yards away, he
could see the gleaming passenger ship.

In a few moments the two jet boats were braking their jets and drifting
to a stop inside the catapult deck of the luxurious liner.

Almost before Tom had stopped the small craft, Coxine was out of the
boat waving his paralo-ray pistols at a cluster of frightened merchant
spacemen.

"Back inside!" he snarled. "Kid! Shelly! Cover me! We're going to the
control deck. Martin, you stay here with the jet boat."

Coxine marched straight through the ship, head up, eyes straight ahead,
while behind him, Tom and Shelly swept the luxurious lounges with their
ray rifles, ready to fire on any who dared resist. They marched past the
frightened passengers, climbed a flight of carpeted stairs to the next
deck, and entered the control room.

The liner's captain, a tall, thin man with graying hair, stood waiting
beside the control panel, his eyes flashing angrily. A half-dozen junior
officers stood stiffly in back of him.

Coxine stepped up to the elderly officer and laughed good-naturedly. "No
one will be hurt, skipper. I just want a few things for my men"--he
paused and glanced at the ship's vault--"and whatever you have in
there!"

"I'll live to see the day when you're caught and sent to the prison
asteroid for this," snorted the captain.

"Don't make me laugh, skipper," said Coxine lightly. "The Solar Guard
will have to build a new one for me. Don't think there's much left of
the old one!"

"Then it was you! You're responsible for the attack on the asteroid!"

Coxine just smiled and turned to Tom and Shelly. "Watch these crawlers
closely, now. I'm going to open the vault."

Tom stared at the ship's officers, hoping to catch the eye of one of
them, but they were all watching Coxine.

The pirate captain pulled a thin rod about two feet long, with a switch
on one end, from his jacket. He walked to the solid titanium door of the
vault and inserted the rod into a small hole, pressing the switch at the
end of the rod carefully several times. He stepped back and inserted it
in another hole in the face of the door and repeated the procedure.
Putting the key back in his jacket he grabbed the handle of the massive
door. It swung open at his touch. The captain of the liner and officers
gasped in amazement.

Working quickly, Coxine crammed the thick bundles of credit notes and
passenger's valuables into a bag. At last he straightened up, and facing
the unbelieving officer again, he tossed them a mocking salute. He
nodded to Tom and Shelly and walked out of the control room without
another word.

Shelly and Tom quickly followed the giant spaceman back to the jet-boat
deck, where Wallace was just returning from his own operations. Wallace
made a circle out of his fingers to Coxine and the giant pirate nodded.

"Let's get out of here!" he ordered.

"Aren't you afraid they'll try to stop you, skipper?" asked Tom.

Coxine laughed. "Just let them try. I never met a man yet that had the
nerve to pull the trigger of a paralo-ray gun while my back was turned."

Tom gulped and wondered if he would have the nerve to fire on the
spaceman. He thought about it a moment and decided that he would take
any chance that came along, if he could outwit the criminal. When the
time came, he would risk his life to stop Coxine!




CHAPTER 14


"All right, line up, you space crawlers!" bawled Coxine. "When I call
your name step up to get your share of the haul!"

The pirate captain was seated at the head of a long mess table, an open
ledger in front of him. There were stacks of crisp new credit notes at
his elbow. He took out his paralo-ray pistols and placed them within
easy reach. On either side of him, Wallace and Simms sat, staring at the
money with greedy eyes.

Coxine looked at the first name on the ledger.

"Joe Brooks!" he called. "One thousand credits for spotting the liner!"

Brooks grinned and amid cheers walked to the table. Coxine handed him a
small stack of notes carelessly and turned back to the ledger.

"Gil Attardi!" he roared. "One thousand credits for working on the
boarding crew."

Attardi, a sly, scar-faced man, stepped forward to accept his share. He
carried a long, thin knife with an edge so deadly keen that he could and
often did shave with it.

Coxine continued his roll call. "Sam Bates! Five hundred credits.
Straight share."

Bates stepped forward and glared at Coxine.

"How come I only get five hundred and the others get a thousand?" he
snarled. "It ain't my fault I'm stuck on the power deck while you grab
all the glory jobs!"

The laughing, excited crowd of men grew silent as the rebellious
spaceman faced Coxine.

"You get five hundred credits," snarled Coxine. "Take it or leave it!"

"I want the same as Brooks and Attardi," demanded Bates.

Quicker than the eye could follow, Coxine rose and smashed the man in
the face with a giant fist. Bates dropped to the deck like a stone.
Coxine glared at the rest of the crew.

"The next crawler that thinks he's not getting his fair share," he
snarled, "will get a trip in space for his share!" He glanced down at
the unconscious man and jerked his thumb toward the hatch. "Get him out
of here!"

Two men dragged the unconscious man away and threw a bucket of cold
water on him. He woke up, snatched at his share of the credits, and
disappeared from the room.

The pirate captain continued reading the list of names, arbitrarily,
handing out various amounts of the stolen money as he saw fit.

Standing in the rear of the messroom, hidden by the other members of the
crew, Tom realized that to step in plain sight of Wallace and Simms for
his share would mean instant betrayal. He had to make his move now, and
with most of the crew mustered together in the messroom, it was his one
chance for success.

Gripping the stolen paralo-ray gun in his jacket pocket, he slipped out
of the messroom unnoticed and headed for the radar bridge.

As he raced up the companionway he could hear the laughter of the men
below decks as one by one they received their shares. His name would be
called soon. Heart pounding, he stopped outside the radar hatch, pulled
the paralo-ray gun from his jacket, and taking a deep breath opened the
hatch.

Joe Brooks was seated in front of the scanner counting his share
greedily and glancing occasionally at the finger of light that swept
across the green globe. When Tom opened the hatch, he looked up and
smiled.

"Hiya, Kid," he said. "Coxine's all right. I got a thousand just for
picking up that ship on the radar. How much did you collect?"

"This," said Tom. He shoved the paralo-ray gun into Brooks' stomach. The
man gulped and finally found his voice.

"Say, what is this? A gag? Where did you get that paralo-ray?" Then
suddenly he shoved the bundle of notes in his pocket. "Oh, no, you
don't! You're not going to steal my share!"

"I don't want your money!" said Tom coldly. "Get into that locker and
keep your mouth shut, or I'll blast you!"

"Locker? Say, what's the matter with you? You gone space happy?"

"Get in there," growled Tom. At the look on the cadet's face, Brooks
rose quickly and stepped into the locker. Tom slammed the door and
locked it. Then, locking the passageway hatch, he turned to the radar
scanner. Working quickly with deft hands, he opened the casing around
the delicate instrument and began disconnecting the major terminals.
Studying the complicated tangle of connections, he wished that he had as
much knowledge of radar as Roger.

He finally found the wires he wanted and separated them from the other
connections. He began replacing them, altering the terminals. After
checking his work, to make sure it would not short-circuit, he grabbed
the intercom and began taking it apart. Sweat beaded his forehead. Time
was short. Soon Coxine would miss him and come looking for him. He had
to complete his job before that happened.

After moments that seemed like hours he was ready. Using one of the
intercom relays he began tapping out a message in Morse code on an
exposed wire from the scanner. He looked at the radar scanner and
watched it flash white static lines each time he touched the wires.
Carefully he tapped out a message.

" ... emergency ... attention ... Corbett ... Space Cadet ... aboard ...
Coxine ... pirate ... ship ... space quadrant ... B ... section ...
twenty ... three ..."

Over and over he repeated the desperate message, hoping against hope
that someone would be scanning space and the interference would show up
on their radar.

" ... emergency ... attention ... Corbett ... Space Cadet--"

       *       *       *       *       *

"Captain Strong!" Roger's voice came shrieking over the ship's intercom.
"Captain! Quick! I'm picking up a message from Tom!"

"What?" cried the Solar Guard officer. "Nail it! I'm coming up!"

Scrambling up the ladder to the radar bridge from the control deck,
Captain Strong rushed over to the scanner and watched eagerly as
blinking flashes washed out the background of the screen.

Slowly, at times unevenly, the message flashed and the two spacemen read
it with gladdening hearts. Strong made a careful note of the position
while Roger continued to read the flashes. Turning to the astrogation
panel, the Solar Guard captain quickly plotted a course that would bring
them to Tom's position.

Endlessly, during the past few days, Strong, Roger, and Astro had swept
space in a wide arc around the asteroid belt, hoping to pick up just
such a signal. Now, with the position of the _Avenger_ in his hands,
Strong grabbed for the intercom.

"Attention, power deck!" yelled Strong. "We've just picked up a message
from Tom. He's given us his position, so stand by for a course change."

"Yeee-eooow!" roared Astro. "I knew he'd do it."

"He's not in the clear yet. We've only got his position. We don't know
how we're going to get him away from Coxine yet."

"Ready to change course, sir," said Astro.

"Three degrees on the down-plane of the ecliptic, and fifty-four degrees
to starboard. Full space speed, Astro! Pile it on!"

"Aye, aye, sir!" replied Astro. "I'll make this wagon's tail so hot
it'll blast at double speed!"

"You'd better, you Venusian ape!" cried Roger. "It's the least you can
do for Tom!"

"Stow it, Manning," growled Astro good-naturedly, "or I'll stick some of
your hot air in the jets for extra power!"

"Cut the chatter, both of you!" snapped Strong. "Astro, execute course
change!"

Astro's reply was a blast on the steering rockets. On the control deck,
Strong watched the needle of the astral compass swing around and stop
dead on the course he had ordered.

"All set, Astro!" shouted Strong. "Right on course. Now pile on the
neutrons!"

"Aye, aye, sir."

On the power deck, the big cadet turned to his control panel, took a
deep breath, and opened the reactant feeders wide. The ship leaped
through the airless void under the sudden burst of power and Astro
watched the acceleration indicator climb to the danger line. He gulped
as the needle passed the danger point and was about to cut down speed
when the needle stopped. Astro breathed easily and settled back
satisfied. If it was up to him, they would reach Tom in record time.

Up on the radar deck, Roger continued to read the flashing signals on
the radar scanner. Over and over, he read the same message.

"I guess that's all he can say, sir," said Roger, turning to Strong.

"Yes, I guess so, Roger," agreed Strong. "He's probably sending it out
blind, on an open circuit, hoping that anyone near enough would pick it
up. Wonder how he did it?"

Roger thought a moment. "I'm not sure, sir, but I think he's crossed the
impulse on the scanner from positive to negative."

"How do you mean?" asked Strong. The young captain was well acquainted
with the principle of radar but, admittedly, could not match Roger's
natural ability.

"By making the impulse negative, sir," said Roger, "he could create
interference on the scanner. Instead of bouncing against something and
returning an image to a scanner, the impulse hits itself and creates
static which shows up in the form of those white flashes."

"Well, in any case," said Strong with a sober nod toward the scanner,
"he's done something the whole Solar Guard couldn't do. He's quite a
boy!"

Roger smiled. "I'll say he is, skipper!"

Strong turned away and climbed down to the control deck. He sat in front
of the great control panel and watched the countless dials and needles.
But his mind wasn't on the delicate handling of the great ship. He was
thinking about Tom, alone aboard a ship with a crew of desperate
criminals.

Tom had taken his life in his hands to send out the message, that much
Strong was sure of! And the young skipper noted with pride that there
was no appeal for help in the desperate call.

He shook his head wearily and flipped the teleceiver switch to report to
Commander Walters.

       *       *       *       *       *

"Emergency ... attention...." Tom continued to tap out the message
slowly and carefully. Behind him, he could hear Brooks hammering against
the locker door. Tom felt like opening the door and freezing the pirate
with his paralo-ray gun to keep him quiet, but he didn't dare to stop
sending.

Finally Tom decided it was time to go. "If anyone's going to pick up the
message," he thought, "they've picked it up by now. I may still have
time to get away in a jet boat."

He tied the wires together, causing a continuous interference to be sent
out, and secured the radar casing. "If I'm lucky enough to get away in a
jet boat," thought Tom, "at least they won't be able to pick me up on
that!"

Without a glance at the locker where Brooks continued to pound and yell,
Tom turned to the hatch leading to the passageway. He gripped the
paralo-ray gun and opened the hatch. Peering into the passageway and
finding it deserted, he slipped out and closed the hatch behind him.
From below, he could hear the roar of the crew as the last of them
received his share of the stolen credits.

Tom raced down the companionway toward the jet-boat deck. He made the
first deck safely and was about to climb down to the next when he was
spotted by Attardi, the scar-faced spaceman, who stood at the bottom of
the ladder.

"Hey, Kid!" Attardi shouted. "The skipper's been looking for ya. You got
the biggest cut. Three thousand credits for that fancy shooting you
did!"

Tom noticed the gleam of the knife at the man's side. The young cadet
could imagine the criminal sinking the knife in his back without
hesitation, if he suspected anything.

"Well," demanded Attardi, "are you going to collect or not? The skipper
sent me to look for you."

Tom smiled, and while still smiling, whipped the paralo-ray gun into
sight and fired. His aim was true. Attardi froze, every nerve in his
body paralyzed. He could still breathe and his heart continued to beat,
but otherwise, he was a living statue, unable to even blink his eyes.

Tom jumped past the spaceman and dashed for the jet-boat deck. He had to
hurry now. Attardi would be discovered any moment and be neutralized.
When neutralized, the victim returned to normal, with only violent
muscle soreness remaining.

Tom reached the jet-boat deck, opened the hatch, and raced for the
nearest small craft. Suddenly from behind he could hear the buzz of a
paralo-ray on neutralizing charge. Attardi had been discovered.

Tom jumped into the nearest jet boat, closed the hatch, and pressed the
button releasing the sliding side of the ship's hull. Slowly, the great
wall of metal slid back exposing the cold black velvet of deep space. As
soon as the opening was wide enough, Tom pressed the acceleration lever
and the small ship shot out, its jets roaring.

Tom quickly glanced around to locate his position by the stars and saw
that he was close to the asteroid belt. He opened up to full
acceleration, and since there was nothing else to do but wait for time
to pass and hope for escape, he began to examine the contents of the
small ship. He opened the emergency food locker and was relieved to see
it fully stocked with synthetics and water. Every second carried him
farther away from the _Avenger_, and when he looked back, Tom saw no
evidence of pursuit. The cadet smiled. They would depend on the radar to
find him, instead of sending out the other jet boats. Tom almost laughed
out loud. With the radar jammed, he was safe. He would make it. Once
inside the asteroids, they would never find him.

Glancing around the few indicators on the control board of the small
vessel, Tom's smile changed to a grimace of sudden terror. The jet boat
had not been refueled after their raid on the jet liner. There was less
than three days' oxygen remaining in the tanks. In three days the jet
boat would become an airless shell. A vacuum no different than the cold
silent void of space!




CHAPTER 15


"What's our position, Roger?" Captain Strong called into the intercom.

"Space quadrant B, section twenty-three, sir," replied Roger from the
radar bridge. "But I can't see a thing on the radar. That static flash
Tom sent out is scrambling everything."

"But you're sure this is our position?"

"Yes, sir. I checked it three times."

"All right, then," said Strong grimly. "There's only one thing to do.
We're too near the asteroid belt to use the _Polaris_ without radar, so
we'll search in jet boats. Astro! We're parking right here! Give me full
braking rockets and secure the power deck. Then prepare the jet boats
for flight."

"Aye, aye, sir," came the reply from the Venusian.

The ship bucked under the tremendous power of the braking rockets and
came to a dead stop in space. Strong dashed up the ladder to the radar
bridge where Roger was still hunched before the radar scanner.

"Any chance of switching the scanner to another frequency and offsetting
the effects of the static, Roger?" asked the Solar Guard captain.

Roger shook his head. "I don't think so, sir. The interference would
have to be eliminated at its source."

"Well," sighed Strong, "to go looking for Tom without the help of radar
would be like looking for an air bubble in the ammonia clouds of
Jupiter. And we don't even know if he's still aboard the _Avenger_ or
not!"

"You know, sir," said Roger speculatively, "I've been thinking. I might
be able to get a fix on this interference."

"A fix? How?"

"By blanking out the radar range, so that it would only work at one
point of the compass at one time, then testing each heading separately
until the flash appears. When it does, we'd at least know in which
direction to blast off and trail Coxine.

"If you can do that, Roger," exclaimed Strong, "it would take us right
into Coxine's lap! Do you think you can work it?"

"I can try, sir."

"All right, then," decided Strong. "Astro and I will take the jet boats
and go looking around. Meantime, you stay aboard and try to pin point
the heading on that flash."

"Very well, sir," replied Roger, and turned to the radar to begin the
complicated task of rewiring the instrument.

Strong went directly to the jet-boat deck where Astro was busily
preparing the jet boats for flight. He looked up when Strong entered the
hatch.

"All ready, sir," he said.

"Very well," said Strong. "I'll take number one, you take number two.
We're in section twenty-three of quadrant B. You take section twenty-two
and I'll take twenty-four."

"Yes, sir," replied Astro. "Do you think there's any chance of finding
Tom?"

"I don't even know if he's out here, Astro. But we can't be sure he
isn't. So we'll search and hope for the best."

"Very well, sir."

"Keep your jet-boat audioceiver open all the time and maintain contact
with me."

"Why not contact Roger here on the _Polaris_, sir?" asked Astro.

"He's busy trying to find out where the flashing static on the radar is
coming from," explained Strong. "We'll make wide circles, starting
outside and working in. Blast in a continuous circle inward, like a
spiral. If there's anything around here, we'll find it that way."

"Yes, sir," said Astro. "I sure hope Tom is O.K."

"Best answer I can give you. Astro, is to blast off and find out."

The two spacemen climbed into the small craft, and while Strong opened
the outer lock, exposing them to the emptiness of space, Astro started
the jets in his boat. With a wave of his hand to Strong, he roared away
from the sleek rocket cruiser. Strong followed right on his tail. They
circled the _Polaris_ twice, establishing their positions, and then
roared away from each other to begin their search.

Astro turned his midget space vessel toward the asteroid belt, ahead and
below him. Choosing a large asteroid that he estimated to be on the
outer edge of section twenty-two, he roared full power toward it. The
tiny space bodies that made up the dangerous path around the sun,
between Mars and Jupiter, loomed ahead ominously. Moving toward them
under full rocket thrust, the Venusian cadet remembered fleetingly
stories of survivors of space wrecks, reaching the airless little
planetoids, only to die when help failed to arrive. He shuddered at the
thought of Tom, a helpless castaway on one of the asteroids, waiting to
be saved. Astro clenched his teeth and concentrated on the search,
determined to investigate every stone large enough to support an
Earthman.

Miles away, no longer visible to Astro and out of sight of the giant
rocket cruiser, Captain Strong felt the same helplessness as he
approached the asteroid belt from a different angle. He realized any
number of things could have happened on the pirate-ship. Tom could have
been captured, or if not yet discovered, unable to escape from the ship.
Strong's throat choked up with fierce pride over the gallant effort Tom
had made to warn the Solar Guard of the _Avenger's_ position.

As he neared the outer edges of the belt, he concentrated on guiding his
small ship in and around the drifting asteroids, his eyes constantly
sweeping the area around him for some sign of a drifting space-suited
figure. What Strong really hoped for was the sight of a jet boat, since
in a jet boat, Tom would have a better chance of survival.

The young captain reached the outer edge of his search perimeter, turned
the small ship into a long-sweeping curve, and flipped on the
audioceiver.

"Attention! Attention! Jet boat one to jet boat two! Come in, Astro!"

Across the wide abyss of space that separated the two men, Astro heard
his skipper's voice crackle in his headphones.

"Astro here, sir," he replied.

"I'm beginning my sweep, Astro. Any luck?"

"Not a thing, sir."

"All right. Let's go, and keep a sharp eye out."

"Aye, aye, sir," replied Astro. He could not keep the worry out of his
voice, and Strong, many miles away, nodded in silent agreement with
Astro's feelings.

       *       *       *       *       *

The _Avenger_ had long since disappeared and Tom was left alone in space
in the tiny jet boat. To conserve his oxygen supply, the curly-haired
cadet had set the controls of his boat on a steady orbit around one of
the larger asteroids and lay down quietly on the deck. One of the first
lessons he had learned at Space Academy was, during an emergency in
space when oxygen was low, to lie down and breath as slowly as possible.
And, if possible, to go to sleep. Sleep, under such conditions, served
two purposes. While relaxed in sleep, the body used less oxygen and
should help fail to arrive, the victim would slip into a suffocating
unconsciousness, not knowing if and when death took the place of life.

Tom lay on the deck of the small vessel and stared at the distant stars
through the clear crystal roof of his jet boat. He breathed as lightly
as he could, taking short, slight breaths, holding them as long as he
could and then exhaling only when his lungs felt as if they would burst.
He could see Regulus overhead, and Sirius, the two great stars shining
brilliantly in the absolute blackness of space. He raised himself slowly
on one elbow and looked at the oxygen indicator. He saw that the needle
had dropped past the empty mark. He knew it wouldn't be long now. And he
knew what he had to do. He took a last long look at the two giant stars,
and then closed his eyes.

Tom no longer tried to control his breathing, but took deep satisfying
lungfuls of oxygen and in a few moments slipped into a sound sleep.

The jet boat roared on, carrying its sleeping occupant in an endless
spiral around the nameless asteroid.

Not too many miles away, alone on the radar bridge of the giant rocket
cruiser, Roger Manning, sweat popping out on his forehead, was trying
the radar scanner on the three-hundred-and-tenth point on the compass.
He connected the wires, glanced at the scanner, and shook his head
disgustedly. The scanner screen was still dark. Having adjusted the
delicate mechanism to eliminate the white flashes of static, he couldn't
find them again. He sat back in his chair for a moment, mopping his brow
and watching the white hairline in its continuous swing around the face
of the scope. As the line swept to the top of the screen, he saw the
blip outline of a jet boat and recognized it as one belonging to the
_Polaris_. Then, slowly, the line swept down and Roger suddenly saw the
blip outline of a second craft. With the experienced eye of a radar
veteran, Roger was able not only to distinguish the jet boats from the
asteroids, but from each other. He gripped the edge of the instrument
and shouted at the top of his voice. The second boat was a different
model!

He reached for the audioceiver and switched it on.

"Attention! Attention! Captain Strong! Astro! Come in! This is Manning
aboard the _Polaris_! Come in!"

Strong and Astro replied almost together.

"Strong here!"

"Astro here!"

"I've spotted a jet boat!" Roger shouted. "You think it might be--"

"Where?" bawled Astro before Roger could finish. "Where is it, you
rockethead?"

"As close as I can figure it, he's circling an asteroid, a big one, at
the intersection of sections twenty-one and twenty-two!"

"Twenty-one and twenty-two! Got it!" yelled Astro.

"I'll meet you there, Astro!" said Strong.

Astro and Strong turned their small ships in the direction of the
intersecting space sections. Astro was the first to spot the asteroid,
but for a moment he couldn't see the jet boat on the opposite side of
the small celestial body. Meanwhile, Strong, coming from the other
direction, saw the boat and relayed the position to Astro. In a few
moments the two space craft had regulated their speeds to that of Tom's
ship and were hastily donning space suits. A quick look inside had shown
them Tom's sleeping body. As Astro started to open the crystal hatch of
his ship to cross over to the other, Strong yelled over the audioceiver.

"Astro, wait!"

Astro looked across at the captain's ship questioningly.

"Tom isn't in a space suit. If we open the hatch it would kill him.
We've got to tow him back to the _Polaris_ and get his boat inside the
air lock before we can open the hatch!"

Without a word, Astro nodded, ducked inside his ship, and climbed out
again with a length of rope. Working quickly, he tied one end securely
to the bow of Tom's jet boat and made the other end fast to the stern of
his. Then returning to his cockpit, he sent the jet boat hurtling back
toward the _Polaris_.

But he was still faced with the problem of getting Tom's jet boat inside
the air lock. It was still under acceleration and there was no way to
get inside to stop its jet motors. Astro called to Strong and explained
the situation to him.

"Looks like the only thing we can do, sir, is keep going until it runs
out of fuel."

"That might take too long, Astro," replied Strong. "No telling how much
oxygen Tom has left."

"There's nothing else we can do, sir," replied Astro. "We can't brake
her to land inside the _Polaris_ and we can't open the hatch to turn off
the motor. We'll have to take a chance on Tom lasting until it runs out
of fuel!"

Inside the roaring craft, Tom suddenly opened his eyes. He began to
cough. There was a roaring in his ears. The stars overhead swam dizzily.
And then, as though through a billowing mist, he saw the jet boat ahead
of him and the rope tied to his ship. He realized he had been rescued.
He tried to signal them. He had to let them know he needed oxygen. He
tried to reach the communicator near the control panel but could not
lift his arm. He fell back to the deck gasping for air; his lungs
screaming for oxygen. Something, thought Tom through the haze that
fogged his brain, something to signal them. Then, with the last of his
strength, he raised up on one elbow and reached for the acceleration
lever. His fingers trembled a few inches away from their goal. His face
began to turn violent red. He strained a little more. The lever was an
inch away. Finally, with the very last ounce of his strength, he touched
the lever and pulled it back by the weight of his falling body.

Even before the black cloud swept over him, Tom could hear the jets
become silent. He had signaled them. He had stopped the jet boat. They
would know, now, how to save him.




CHAPTER 16


"... and you never picked up that static flash again, eh?" mused Strong,
looking at Roger. "Well, the only reason I can think of is that someone
aboard the _Avenger_ must have discovered what was happening."

"That's the way I figure it, sir," replied Roger.

The Solar Guard captain studied the scanner that was now working in
perfect order. "It's a tough break that we couldn't get that fix on
Coxine's position. I was counting on it. But at least we found Tom.
That's plenty to be thankful for."

"How is he, sir?" asked Roger.

"He'll be all right," replied the Solar Guard captain, his face showing
the strain of the past weeks. "We gave him pure oxygen and he came to
long enough to tell us what happened aboard the _Avenger_. Get me
teleceiver contact with Space Academy as soon as possible. I've got to
send a report to Commander Walters."

"Right, sir."

"You've done a good job, Manning. Your work here on the radar bridge did
as much toward saving Tom's life as anything."

"Thank you, sir. After what Tom did on the _Avenger_, though, I don't
feel like I've done very much. It took real courage to go aboard that
ship with Coxine."

Strong smiled wearily. "Well, the boy is safe now and we have a good
idea what part of the belt Coxine is operating in. With a little luck
and a thorough fleet patrol, we might be able to get him before he can
do any more harm."

Strong went below to the cadet's quarters where Astro was sitting
quietly, watching Tom. The cadet was sound asleep. When Strong entered,
Astro held a finger to his lips and met the captain at the door.

"How is he?" whispered Strong.

"He's been sleeping since he spoke to you, sir," said Astro. "He's
pretty weak, but I don't think there's anything seriously wrong with
him. After a good rest, he'll be as good as new."

"Thank the universe for that," breathed Strong. He glanced at the
sleeping cadet and then turned back to Astro. "Better take your station.
He'll be all right now. I want to get back to the Academy as soon as I
can."

"Yes, sir."

"Attention, Captain Strong," Roger's voice crackled over the intercom
loud-speaker. "I've made contact with Commander Walters at Space
Academy, sir. He's standing by for your report."

Strong returned to the control deck where he saw the sharp image of the
Space Academy commander waiting on the teleceiver screen.

He told the grim-faced senior officer of discovering the static Morse
code flashes sent out by Tom from the Avenger and the race to save Tom's
life. When he finished, the commander's face seemed to relax.

"When Corbett wakes up, give him my personal congratulations, Steve.
That goes for Astro, Roger, and yourself, as well."

"Thank you, sir," said Strong. "Since Coxine seems to be operating
exclusively out of the asteroid belt, I think it would be a good idea to
concentrate the entire fleet of patrol ships in that area."

"Good idea! I'll set it up. But get back here as soon as possible,
Steve. Coxine and that crew on the _Avenger_ aren't sitting still."

"What do you mean, sir?"

"In the last three days we've had reports from seven ships. Jet liners,
passenger freighters, and supply ships. All were attacked by the
_Avenger_ and stripped of everything those criminals could load on their
murderous backs. Blasters, paralo-ray guns, whole and synthetic
foodstuffs, clothes, money, jewels, equipment. Everything under the
stars that they could use. Any ship that even comes close to the
asteroid belt between Mars and Jupiter, unless escorted, is a dead space
bird. And if we did provide an escort, we wouldn't have enough ships
left to carry on the search."

Strong listened to the news with rising anger.

"I'll blast back to the Academy as soon as I can, sir," said Strong.

"Fine!" said the commander. "End transmission!"

"End transmission!"

Strong turned off the teleceiver and called Roger onto the radar bridge.

"Have you got a course back to the Academy, Roger?"

"Yes, sir."

"All right, give it to Astro and let's get moving. Every minute wasted
now is the difference between a ship looted and the future safety of the
space lanes. I have a feeling that Coxine is not just playing for the
hauls he makes on those helpless jet liners."

"I don't get you, sir."

"Look at it this way, Roger," replied Strong with a grim smile. "A man
smart enough to do what he did while he was confined to a prison
asteroid might have bigger ideas now that he's free. Ideas about himself
and the whole Solar Alliance!"

During the weeks following, the activity of Bull Coxine and his pirate
crew justified Captain Strong's fears. Repeatedly, ships were attacked
on the fringe of the asteroid belt and stripped of armor, food supplies,
and valuables. With the secret of the light-key, the vaults of the ships
were opened as easily as though there had been no lock at all. The
totals had reached staggering amounts and the daring of the _Avenger_
was more pronounced, as Coxine struck repeatedly, farther and farther
away from the protection of the asteroid belt. It seemed as though he
were taunting the Solar Guard with his exploits.

All defense measures seemed to be futile. When the space freighters and
jet liners were armed and tried to resist attack, Coxine blasted them
into helpless space junk at a frightful cost of life. When the ships
were escorted by powerful rocket cruisers, the pirate refused to attack,
but the search squadrons were correspondingly depleted. The combinations
of the energy locks were changed every day, but with the adjustable
light-key, Coxine met every change easily. The entire Solar Alliance was
in an uproar, and the citizens of the planets were clamoring for action.

[Illustration: _All Solar Guard defense measures seemed to be futile_]

Finally, the commanding officers of the Solar Guard noticed a change in
Coxine's operations. Instead of merely attacking spaceships and
hijacking their cargoes, he now took over the vessel completely, sending
the passengers and crews drifting helplessly in space in jet boats.
Three large, fast space freighters of the same class as the _Avenger_
were now in the pirates' hands.

Then, one morning, in his headquarters at Space Academy, Captain Strong
received an electrifying report. Coxine had attacked a freighter
escorted by a Solar Guard rocket scout. Outgunned, the scout had been
destroyed, but it had inflicted damage on the _Avenger_. The last report
from a dying communications officer on the scout was that the pirate
ship was drifting helplessly in space!

Strong, his face showing hope for the first time in weeks, burned the
teleceivers, flashing orders to the various elements of the search fleet
to converge on the disabled _Avenger_.

"Attention! All ships in quadrants C through M and Q through B-l!
Proceed full thrust to quadrant A-2, section fifty-nine. On approaching
target you will signal standard surrender message, and if not obeyed,
you will open fire!"

Behind him, the three cadets of the _Polaris_ unit listened to the
decisive words of their commander and then let out an earsplitting yell.

"No time for celebrating," barked Strong. "We haven't caught him yet.
He's the slickest thing to hit this system since the reptiles climbed
out of the Venusian mud! It's going to be a case of our getting him
before he can disappear into the asteroid belt, so let's hit the high,
wide, and deep!"

Five minutes later, Strong and the boys were aboard their ship.

"Ready to blast off, sir," reported Tom. The curly-haired cadet's face
was still pale and drawn, showing the effects of his ordeal in space.

"Get me direct teleceiver contact with Captain Randolph on the rocket
cruiser _Sirius_," ordered Strong.

"Yes, sir," replied Tom. He turned to flip on the teleceiver, and a
moment later the captain's face appeared on the screen.

"Randolph here. What's up, Steve?"

"I've got Squadron Nineteen of the Martian reserve fleet heading for the
last reported position of the _Avenger_ now, Randy. I'll take the point
position of your squadron and direct operations. I'll relay course to
you as soon as we're in space."

"O.K., Steve," replied Randolph. "I'm ready to raise ship."

"I'll go up first. Form up around me at about five thousand miles. End
transmission!"

"End transmission!"

"All right, Tom," ordered Strong, "let's get out of here!"

The young cadet strapped himself into his acceleration chair, then
picked up the control panel intercom and began calling out orders
crisply.

"Stand by to raise ship! All stations check in!"

"Power deck standing by!" replied Astro from below.

"Radar bridge standing by!" acknowledged Roger over the intercom.

"Energize the cooling pumps!"

The whine of the mighty pumps began to fill the ship almost as quickly
as Astro acknowledged the order.

"Feed reactant!" snapped Strong, strapping himself in beside Tom.

A low-muted hiss joined the sound of the whining pumps as Tom opened the
valves. "Reactant feeding at D-9 rate, sir," he reported.

"Roger," called Strong into the intercom, "do we have a clear
trajectory?"

"Clear as space, skipper!" was Roger's breezy answer.

"All right, Tom," said Strong, "cut in take-off gyros."

The cadet closed the master switch on the control panel and the noise
from the power deck below began to build to an unbearable crescendo!

Watching the sweeping second hand of the chronometer, Tom called out,
"Blast off minus five--four--three--two--one--_zero_!"

With a mighty roar, all main rockets of the spaceship exploded into
life. Shuddering under the sudden surge of power, the ship rose from the
ground, accelerated at the rate of seven miles per second, and arrowed
into the sky, space-borne!

On the Academy spaceport, ships of Squadron L began to blast off one by
one behind the _Polaris_ at ten-second intervals. Three rocket cruisers,
six destroyers, and twelve rocket scouts. The explosive blast of one
hardly rolling away across the surrounding hills before another
deafening blast lifted the next space vessel away from Earth.

Aboard the _Polaris_, Roger was busy over the chart table plotting the
course when Strong appeared at his side.

"Have that course for you in a minute, sir," said Roger. He turned to
the astrogation prism and made careful observations of Regulus, the
fixed star always used in astrogation. He jotted several numbers down on
a piece of paper, rechecked them against a table of relative values and
handed the papers to Strong.

The captain immediately opened the teleceiver and relayed the
information to other ships of the squadron. After the _Polaris_ had made
the course change, the ships followed, taking positions all around the
lead vessel.

Like fingers of a giant hand, the Solar Guard squadrons converged on the
reported position of the disabled _Avenger_. From every ship, radar
scanners probed the space ahead with invisible electronic fingers for
contact with the target. On the _Polaris_, Strong, his nimble brain
figuring Coxine's possibilities of escape, hunched over the chart table
and worked at plotting alternate courses on which he could send pursuit
squadrons on a moment's notice. One thing worried Strong, and that was
if Coxine should repair his ship and make the security of the asteroid
belt before they could reach him, it would be almost impossible to track
him through that tortuous maze of space junk.

Squadron Ten was the first to sight the enemy spaceship, though it was
too far away to attack. The commander reported his finding to Strong
immediately.

"We still have quite a way to go before we reach him, Strong. But if our
luck holds out, we might be able to pin him down in a wide circle."

Strong studied the chart and marked the position of the _Avenger_ just
reported. He compared the position to that of the other fleet ships and
decided that they were still too far away to tighten a ring of armor
around the pirate. Strong was well aware that if the Solar Guard could
spot Coxine, he in turn could spot them. Luck, mused Strong to himself,
was what they needed now. A little luck to keep the pirate from
repairing his ship and disappearing into the asteroid belt. He grabbed
the intercom and bawled orders.

"Power deck, emergency space speed. Control deck, relay that order to
every ship converging on the _Avenger's_ position!"

"What's up, sir?" asked Tom from below.

"One of the ships has spotted Coxine. He's apparently still out of
commission, but we're too far away to hail him."

Strong began to pace the deck of the radar bridge, and with each turn,
he glanced at the radar scanner where Roger was waiting anxiously for
the telltale blip of the _Avenger_ to appear.

Suddenly the blond-haired cadet stiffened. He peered at the scanner
screen, then cried, "There he is, sir!" His finger pointed to a white
outline on the scanner.

Strong took a quick look at the pirate's position and compared it to the
positions of the converging fleet. He turned to the teleceiver and
signaled for the immediate attention of all ships.

"This is Strong aboard the flagship _Polaris_! All ships will proceed
according to attack plan seventeen--code nine. Use full power! Emergency
thrust!"

As the minutes passed and the Solar Guard fleet plunged forward, the
ships forged a solid wall of guns around the drifting pirate vessel.
From above, below, and almost every compass point on the plan of the
ecliptic, they closed in, deadly blasters aimed, gunners ready to fire.

"We've got him, sir!" breathed Roger. "He can't escape now! Not in a
million light years!"

Captain Strong didn't reply. Eyes were glued to the scanner, watching
the target and the Solar Guard squadrons, searching for every possible
loophole in the trap. Suddenly he spoke into the teleceiver.

"Attention all ships! Maintain present range, reduce speed, and take
englobement formation!"

In reply, the elements of the fleet smoothly reformed until they formed
a giant wheel in space with the pirate ship as the hub. Around and
around they flew, all inboard guns trained on the enemy.

As the command ship, the _Polaris_ flew high over the formation. Strong
checked the formation carefully on the scanner and nodded his
satisfaction.

"I think we've done it now, Manning," he sighed. "Coxine doesn't have a
chance of breaking through."

Roger looked unhappy. "Ah, it was too easy, sir," he grumbled. "I was
counting on having some fun."

"After all these weeks of heartache, I'll skip the fun if you don't
mind," said Strong wryly and turned to the intercom. "Tom, check in!"

"Aye, aye, sir!"

"Head for the _Avenger_. Close in!"

"You mean we're going to lead the attack, sir?" Tom shouted in a sudden
burst of enthusiasm.

"From the looks of things, I don't believe an attack will be necessary,"
replied Strong. "We're going alongside to accept Coxine's surrender.
Start blasting!"

"Aye, aye, _sir_!"

As Tom's voice was heard over the intercom speaker, issuing orders to
Astro for change of course, Strong turned back to Roger.

"Open up the audioceiver to all-wave transmission!"

"You going to talk to Coxine, sir?"

"Yes. And I hope he'll listen. If he doesn't, I'll do my talking with
six-inch blasters!"

Roger quickly adjusted the settings on the audioceiver and then turned
to his skipper.

"She's all yours, sir. Give it to him good!"

Strong smiled thinly and picked up the microphone.

"Attention, Bull Coxine! Attention, Bull Coxine!" Strong's voice was
cold and hard. "This is Captain Strong of the Solar Guard! You're
surrounded. You haven't a chance of escape. I demand your unconditional
surrender! Acknowledge immediately!"

Strong flipped the key to open the receiver and waited for the reply.
Roger moved closer, his eyes glued to the image of the pirate ship
looming larger and larger on the scanner.

Fifteen seconds passed. Thirty. There was no sound over the receiver.
Sweat began to bead Strong's forehead and he opened the transmitter key
again.

"Listen, Coxine! I know you can hear me! I'll only talk to you once
more! Surrender or you'll be blasted into protons! I'll give you exactly
thirty seconds to make up your mind!"

Again Strong opened the receiver key and waited, but as the seconds
ticked by, there was no answer.

"Sir, do you think he's sucking us into a trap?" Roger whispered.

"Maybe," replied Strong grimly. "But he knows what would happen to him
if he opened fire."

"Captain Strong! Captain Strong!" Tom's voice suddenly blared over the
ship's intercom.

"Don't bother me now, Corbett," replied Strong irritably.

"But, sir," Tom persisted, "that isn't the _Avenger_!"

"What!" Strong was thunderstruck.

"No, sir," continued the young cadet. "I'm looking at her right now on
my control-deck scanner. It's the same model ship as the _Avenger_, but
it isn't Coxine's!"

"Are you sure?"

"Positive, sir. I was on her long enough to know."

"Blast it! Then what--?"

Roger suddenly interrupted Strong. "Sir, look at her over the
magnascope! She's been abandoned!"

The Solar Guard captain quickly turned to the magnascope screen. There
he saw a close-up view of the target. It was a helpless derelict. All
emergency ports were open and the jet-boat locks were empty.

Strong's face grew pale and he slumped back in his chair.

"What--what do you suppose happened, sir?" asked Roger hesitantly.

"It's easy enough to figure," Strong replied, his voice dull and
lifeless. "Coxine is using more than one ship now. And when this one was
damaged, he simply transferred to another one. He's outfoxed us again!"

Slowly, with wooden legs, he walked over to the teleceiver.

"Attention all ships! Resume former search stations. All we've caught
here is a red herring!"

And as the powerful engines of the _Polaris_ picked up speed, Strong
imagined he could hear Gargantuan laughter echoing in space around him.




CHAPTER 17


"Spaceman's luck, sir," said Tom, shaking Captain Strong's hand.

Silently the other two cadets in turn gripped their skipper's hand
tightly.

"Thanks, boys," said Strong. "If we're going to get that space crawler,
we have to trap him. And the best bait I know is a twenty-million-credit
pay roll."

"But won't you take at least one man with you, sir?" pleaded Tom.
"Sitting up there in space in a decoy ship waiting for Coxine is
like--" Tom paused. "Well, you won't have much of a chance, sir, if
Coxine opens fire before asking questions."

"That's the risk I've got to take, Tom," said Strong. "It took a lot of
talking to get Commander Walters' permission to try this. But we've got
to force Coxine to come out far enough from the asteroid belt to catch
him before he can run back in and lose himself again." The young captain
smiled wanly and added, "Don't think that your job is unimportant!"

Tom, Roger, and Astro nodded. On their return from the unsuccessful
attempt to capture Coxine, they had been suddenly faced with the routine
duty of transporting a twenty-million-credit pay roll from Atom City to
the satellite of Titan for the crystal miners.

Thinking one sure way to catch any rat was to use a lure, Tom suggested
that the Titan armored freighter be used as a decoy to capture the
pirate, and the cadets could carry the pay roll in the _Polaris_.

Commander Walters had considered the plan, and then realizing that
Coxine might fire on the freighter before seizing it, disapproved of
placing a full crew aboard the lightly armed ship. Instead, he would
send only one man. Strong had volunteered for the assignment and had
persuaded the commander to allow him to man the decoy ship.

Now, the two ships, the _Polaris_ and the armed freighter stood side by
side at the Academy spaceport, and the three cadets and their commanding
officer waited for the signal to blast off.

"You have your course for your trip out to Titan, Tom?" asked Strong.

"Yes, sir," replied Tom. "We're to blast off later to-night and take a
course through the asteroid belt, traveling on the plane of the
ecliptic. As soon as we get through, we are to proceed under full
emergency thrust to our destination."

Strong nodded his head, satisfied.

"Do you think Coxine will come out after you, sir?" asked Roger.

"We've tried to make sure that he will, Roger," replied Strong. "It's
pretty common knowledge that the Titan pay-roll ship leaves every month,
and that it travels a different route each time. Sometimes it goes
through the asteroid belt on the plane of the ecliptic and sometimes it
goes over. We believe Coxine knows this, and with the thinly guised
messages we've sent to Titan, we're hoping he'll try for it."

"But how will you get him, sir?" asked Astro, puzzled. "I mean, with no
armor on the freighter to speak of, and no crew aboard, how can you nail
him before he gets you?"

"Hyperdrive," replied the captain laconically.

"Hyperdrive?" echoed Tom quizzically.

"I'm going to take the decoy ship through the asteroid belt too, but
through a different area, closer to the part we think Coxine is
operating in. Seven full squadrons have blasted off ahead of me and
taken up positions in that area. When and if Coxine attacks, I'll alert
the waiting ships, who'll come in on hyperdrive. By the time Coxine
spots them on his radar, they'll be on top of him."

"Then," ventured Tom, "you're staking your life on the ships arriving
before Coxine can attack."

"That's right, Tom," said Strong. "If our plan works, we catch Coxine.
If it doesn't, at least we know that the Titan pay roll is safe. That's
why your job is as important as mine."

They were interrupted by the ground-crew chief who reported the decoy
ship ready to blast off.

Strong nodded and the three cadets gripped their captain's hand again.
Turning, he climbed into the freighter and five minutes later the Solar
Guard officer blasted off from the Academy spaceport while Tom, Roger,
and Astro watched from the traffic-control tower.

"Come on," said Tom. "It'll be two hours before we can blast off. We
might as well get some sleep. We'll need it."

Reluctantly, Roger and Astro followed their unit-mate from the traffic
tower, their eyes full of concern for their skipper. Each was grimly
aware that they might never see their skipper alive again.

       *       *       *       *       *

"Now shut your traps!" roared Bull Coxine. "The next crawler that opens
his mouth gets taken apart!" He stood on top of a table and faced his
crew of pirates who were sitting about swilling large cups of rocket
juice.

The room in which the giant pirate spaceman had gathered his men was one
of many in a building constructed since their arrival from the prison
asteroid. Hidden from even the closest inspection by the smaller bodies
circling around the main asteroid, Coxine had expanded the small hut
used by Wallace and Simms into a huge rambling building containing
armories, machine shops, and storage rooms packed with everything he and
his murderous crew might need.

Now with a string of successful raids behind them and their personal
pocketbooks bulging with stolen credits and valuables, the crew of
pirates waited attentively while their cruel but brilliant leader
outlined the most daring plan of all.

"Now listen," roared Coxine. "There's a few things I want to say before
we start on the plans of the next strike!"

The big spaceman paused and glared at the men in front of him. "Ever
since that space-crawling cadet pulled a fast one on me there's been
talk about voting for another leader!" He spat the word as if it had
left a foul taste in his mouth. "Well, get this. There'll be no voting!
I'm the boss of this outfit! Any man who thinks he can take over my
job," Coxine's voice dropped to a deadly whisper, "_just let him try!_"

Stony silence greeted the huge spaceman, a silence inspired by fear.

"Now!" roared Coxine, his coarse features changing from a scowl to a
broad grin. "The strike!"

This was greeted with a roar of approval. The men demanded action after
a week of idleness on the asteroid.

"Wallace!" yelled Coxine.

"Yes, sir," answered the spaceman, stepping up to the table and facing
Coxine.

"We'll take up a position in the asteroid belt, here!" He placed a
finger on a map of the belt. "Simms!" roared the giant spaceman.

"Yes, sir!" the wizened space pirate stepped forward.

"You remember that rocket scout we blasted? The one that got our other
ship?"

"I sure do, sir."

"It's drifting around in orbit near asteroid seventeen. Take a crew of
men and a few jet boats and go get her. Bring her back here and fix her
up. Strip every pound of excess weight off her. I want a ship that'll
fly faster than anything in the system and I want it in twenty-four
hours."

"Yes, sir," gulped Simms. "But then what'll I do with her?"

"After you've done what I've already told you to do," snapped Coxine,
"I'll tell you more!"

Simms' face turned red, and he nodded curtly.

"Now as for the rest of you crawlers," said Coxine, facing the room full
of men. "Repair crews have been assigned for work on the rocket scout
and the rest of you will work on the _Avenger_ and prepare her for a
long flight. I want the three-inch blasters, every paralo-ray gun and
rifle, the fuel tanks, food supplies, oxygen circulators, in fact
everything checked, rechecked, and _double-checked_!"

Joe Brooks, who had become a favorite of Coxine's, rose and faced the
pirate captain. "Where are we going to strike next, skipper?"

Coxine looked at the man with a half-smile playing on his lips. "This
operation will have two parts, Joe. The first--well--" his smiled
broadened--"the Titan pay-roll ship just blasted off from Space Academy.
For the last ten years, the Titan pay-roll ship has been blasting off
from Atom City. Now why do you think it would suddenly leave from Space
Academy, the home of the Solar Guard?"

The crowd of men murmured their bewilderment.

"I'll tell you why!" bawled Coxine. "Either they have that ship so
packed with blasters it would take a fleet to stop it, or it's a trap!"

"But if you think it's a trap," exclaimed Wallace, "you're not going to
hit it, are you?"

"I said it _might_ be a trap!" snapped Coxine. "But it might not and
with twenty million credits to be had for the taking, I'm not going to
let her breeze through. I'm going to make sure it's a trap before I try
something else!"

"But how?" persisted Wallace.

Coxine looked at his lieutenant coldly. He had indulged the man too
long. "I'll tell you when I get good and ready! Now all of you, get out
of here and make sure everything, and I _mean everything_, is ready to
raise ship at a moment's notice!"

The men got up and shuffled from the room. Coxine turned to his two
lieutenants. "All right, Wallace, see that those crawlers do what I told
them to do. And you, Simms, get after that rocket scout."

The two spacemen saluted their captain and turned away. Coxine watched
them leave the room, already planning his next move, a move calculated
to be so surprising that the Solar Guard would be absolutely helpless.

Bull Coxine smiled and turned to study the charts of the asteroid belt.

       *       *       *       *       *

Alone aboard the armored decoy ship, Captain Strong blasted steadily on
his course through the asteroid belt. The young Solar Guard officer was
aware that at any moment after reaching the celestial jungle of small
planetoids he could be fired on without warning. And though the Solar
Guard patrol ships, well hidden in the belt, would blast Coxine out of
existence, it would still be too late for him.

Grim-faced, his hands gripping the controls, he rocketed through space,
determined to put an end, once and for all, to the marauding pirate and
old enemy, Bull Coxine.

       *       *       *       *       *

When night fell over the Academy spaceport, Tom, Roger, and Astro
climbed silently into the giant rocket cruiser _Polaris_ and raised ship
for Titan. Their departure from Earth was routine, with no one but
Commander Walters and Captain Strong knowing that stowed in the storage
compartment of the spaceship was twenty million credits, the pay roll
for the miners of Titan.

Once in space, the rocket ship was put on course and held there by
automatic pilot. The three cadets gathered in the messroom and sipped
hot tea, staring moodily into their cups. Unable to break audio silence,
lest they should betray their position, their first chance of hearing
any news lay far ahead of them at Titan. They could only hope that the
decoy trap would succeed and that their skipper and friend would return
safely. The only comment was Astro's grim prediction.

"If anything happens to Captain Strong," he paused and finished his
sentence in a tense whisper, "I'll search the universe until I find
Coxine. And when I do, I'll break him in two!"




CHAPTER 18


"Have you got everything straight?" asked Coxine. Simms nodded his head.

"All right, blast off," ordered the pirate. "We'll follow you and keep
you spotted on radar. If it's a trap, head for asteroid fourteen, bail
out in a jet boat, and let the scout keep going. We'll pick you up
later."

Simms nodded again and turned to his old partner, Wallace. "So long,
Gus." He smiled. "This is one time the Solar Guard gets it right where
it hurts!"

"Yeah," agreed Wallace. "See you later. Take it easy on that asteroid
and don't get in trouble with the girls!"

The two men laughed and Simms turned to climb into the waiting rocket
scout. The sleek ship had been stripped down until it was hardly more
than a power deck and control panel. She was now capable of more than
twice her original speed. As the little spaceman disappeared into the
air lock, Coxine turned to Wallace.

"We'll give him an hour's head start and then blast off after him. And
remember, the first man that breaks audio silence will get blasted!"

All eyes were on the tiny rocket scout as its jets, roaring into life,
lifted free of the pirate planetoid. When the speedy little ship had
disappeared into space, Coxine turned to his crew and ordered an
immediate alert. While the criminals readied the armed privateer for
blast-off, Coxine and Wallace climbed directly to the radar bridge.

Joe Brooks was hunched in front of the scanner, staring intently. He
looked up when the two pirate officers entered.

"Just following Lieutenant Simms on the radar, skipper," said Brooks.
"He's blasting through the asteroid belt faster than I thought he
could."

"Lemme see!" growled Coxine. The giant pirate stared at the scanner and
his mouth twisted into a grin. He turned away and barked several orders.
"Wallace, stand by to blast off in two minutes! Brooks, get me a bearing
on that ship."

"You mean Simms?" asked the radarman.

"No! I mean that ship, right there," snapped Coxine. He pointed to a
white blip on the scanner. "And after you get the bearing I want a
course that'll intersect it in"--Coxine paused and glanced at the astral
chronometer--"ten minutes!"

Quickly calculating the bearing and working up the course as ordered,
Brooks handed Coxine a slip of paper. The pirate glanced at it briefly.

"What would you say Simms' speed would be if he kept his ship on full
thrust, Brooks?" asked Coxine.

Brooks thought a moment. "I'd say it would be about half of what he's
making now!"

"Exactly!" roared Coxine. "That's why the ship on your scanner isn't
Simms' at all, but another ship!"

The radarman studied the scanner, where, with each sweep of the thin
white line, the blip of the ship appeared. "You mean it might be the
Titan pay roll?" he breathed hopefully.

"Yeah," breathed Coxine. "I mean it might be the Titan pay roll, and
then again it might not!" Coxine turned away, leaving the radarman
utterly confused.

Within the two-minute deadline that Coxine had ordered, the members of
his crew were locking the last air lock and securing ship for blast-off.
Coxine sat in front of the control panel, ready to give the final order
that would send the vessel hurtling into space. In a little while, the
evil mind, the twisted brain of Bull Coxine would be pitted against the
might of the Solar Guard.

       *       *       *       *       *

Captain Strong sat on the control deck of the decoy ship, watching the
radar scanner and waiting for the appearance of Bull Coxine and his
crew. Again and again, the young Solar Guard officer, too restless to
remain in one spot, got up and paced the deck.

He flipped on a chart screen and studied the positions of the
surrounding asteroids, which he knew hid the Solar Guard fleet, ready to
pounce on any attacking ship. Schooled for years in facing the tedium of
space travel and patrolling the space lanes, Strong nevertheless was
anxious for something to happen, as minute after minute slipped past and
no attack came.

Once he thought he saw something move on the scanner and gripped the
sides of the instrument tightly as a blip appeared, disappeared, and
then reappeared. Finally Strong was able to distinguish what it was and
he turned away in disgust. It had been a maverick asteroid, one which,
because of its positive gravity, never became a captive of other bodies
in space. It wandered aimlessly through the belt, a danger spacemen
feared more than any other, since it could not be depended upon to
remain in one position.

Unable to break audio silence and communicate with the hidden Solar
Guard fleet around him, lest he give away their positions, Strong found
the loneliness driving him into a case of jitters and nerves.

Suddenly he jumped up and stared unbelievingly at the scanner. There in
front of him was a blip, traveling at amazing speed, straight for his
ship. From its size and shape, Strong could tell it was a rocket scout.
He watched it for a moment dumfounded at the speed of the small ship.
When he was certain that it was heading for him, he grabbed the
audioceiver microphone and began calling hurriedly.

"Attention all ships! This is Captain Strong. Spaceship approaching me,
starboard quarter, one-one-five degrees. Estimated speed--" Strong
paused and watched the moving blip. "Speed unknown. All ships close in
immediately!"

On the scanner, Strong could see the flashes of blips as the squadrons
roared out of concealment and closed in on the approaching rocket scout.
Over the audioceiver he could hear the squadron commanders snapping
orders to their ships as the small ship still headed, unheedingly, for
his decoy vessel.

Suddenly the attacking ship slowed and Strong could see the blip turn in
a wide-sweeping curve. But it was too late. The Solar Guard ships had it
surrounded from every possible angle. The little scout made a desperate
dash straight for Strong's ship. In a flash, he saw the plan of the
ship's pilot. He was heading for Strong, hoping to use him as a shield
from the mighty six-inch blasters trained on him.

Strong grabbed for the control and fired full thrust on his starboard
jets, sending the decoy vessel into a screaming dive. The attacking ship
tried to follow, but seeing it couldn't make it, turned and tried to
escape from the surrounding ships. Instinctively Strong shouted a
warning to the pilot to surrender, but even as he spoke, he saw the
firing flashes sparkle on the hulls of a dozen fleet vessels as they
sent their deadly atomic missiles converging like lightning arrows on
the speedy rocket scout.

There was a burst of pure white fire on the scanner and then the young
captain gulped as the attacking ship was blasted into a hulk of twisted
metal.

Strong grabbed the audioceiver microphone and shouted orders to the
fleet squadron leaders.

" ... Squadron L! Put out immediate rescue jet boats and begin salvage
operations. All remaining ships will return to Solar Guard base, Space
Academy. End transmission!"

Strong hurried to the air lock, hastily put on a space suit, and in a
few moments was blasting in a jet boat toward the remains of the
attacking scout.

Immediately the communications of the departing fleet were filled with
talk of their victory over the pirate band. Strong alone felt uneasy
about their success. For Coxine to attack in a light rocket scout, which
Strong felt sure had been stripped down to gain more speed, did not
follow the pattern which the hardened pirate had established in previous
raids.

When he arrived at the wreckage of the rocket scout, Strong found that
his fears were justified.

A crew chief from one of the rescue squads approached Strong; his body
weightless in space, the man grappled for a handhold on a jutting piece
of the twisted wreck, and then spoke to Strong over the helmet
spacephones.

"We found only one person aboard, sir," he reported. "And the ship
appears to have been stripped of everything but engines and control
panel."

Behind the protective glass of his helmet, Strong grimaced. He turned to
Captain Randolph. "We've been tricked again, Randy," said Strong
bitterly. "We used a decoy and so did Coxine!"

       *       *       *       *       *

"They're closing in!" Roger's voice crackled through the intercom from
the radar bridge. "Do we fight or do we let those space crawlers take
over?"

"Fight!" bellowed Astro from the power deck.

"No! Wait!" cried Tom. "We haven't a chance! If we don't heave to,
Coxine'll blast us into space junk!"

Rocketing through the asteroid belt with the Titan pay roll, the three
space cadets, under strict orders to maintain communications silence,
were unaware that Bull Coxine had outsmarted Captain Strong. Sending in
the rocket scout, he had sprung the Solar Guard trap and had cagily
scanned the belt for another ship. Finding the _Polaris_ easily, the
pirate captain was blasting in for the attack.

On the control deck of the Solar Guard cruiser, Tom Corbett desperately
tried to think of a plan to outwit Coxine, while his unit-mates urged
him to fight back.

"What's the matter, Junior?" Roger called over the intercom
sarcastically. "Scared to fight?"

"You know I'm not," snapped Tom in reply.

"By the rings of Saturn," growled Astro, "I never thought you'd
surrender to anybody, Tom!"

"Listen, both of you!" shouted Tom. "It's no use! We've got to play this
smart!"

"Well, start making with the brains," sneered Roger. "Coxine's in range
now."

"Attention--" A harsh unmistakable voice rumbled over the audioceiver.
"This is Bull Coxine! Heave to or you'll be blasted!"

"All right, Junior," said Roger bitterly, "company's coming. What now?"

"Cut all power, Astro--fast!" ordered Tom.

"What's the matter?" growled Astro. "Afraid they'll shoot if you don't
stop fast enough?"

"Keep your big trap shut and do as I tell you!" snapped Tom.

"Listen, Junior!" snarled Roger. "As far as I'm concerned--"

Tom interrupted him. "_You_ listen, you idiot! Don't you see what's
happened? Coxine must have found out about the decoy ship, and when we
showed up on his scanner, he figured right away that we might have the
Titan pay roll."

"So what?" demanded Roger. "That still doesn't let you off for not
belting that crawler with our six-inchers!"

"Use your head!" snapped Tom. "With the Solar Guard squadrons on the
other side of the belt and with no gun crews on our ship, how far do you
think we'd have gotten?"

"You didn't have to surrender, Tom," said Astro. "I could have outrun
Coxine in nothing flat. Why, I haven't got half the speed out of this
old girl I think she's got."

"A great idea, bird brain! Run away from the very guy the Solar Guard's
going crazy trying to find!"

The intercom was suddenly silent as Astro and Roger began to understand
Tom's decision and waited for him to elaborate on his idea.

"Now, listen, Roger," said Tom patiently, "we've got about five minutes
before those crawlers will be aboard. How long will it take you to make
a signal beacon that'll send out a constant automatic SOS?"

"A what?" asked Roger.

"Beacon. One that will transmit on the Solar Guard special frequency and
be small enough to hide here on the _Polaris_."

"Why hide it on the _Polaris_?" asked Astro. "Why not try to get it on
their ship?" His tone was almost apologetic now that he realized Tom was
not planning a cowardly surrender.

"It's a cinch they'll take the _Polaris_ over," explained Tom. "She's
fast and she's got six-inch blasters."

"I get it!" yelped Astro. "We plant the beacon on the _Polaris_, and
when they take her over, the signal will be going out all the time."
Astro paused. "But wait a minute. They'll be sure to search the ship
first!"

"First things first, Astro," answered Tom. "Roger, can you make the
beacon?"

"Yeah," said Roger, "but it'll take me at least a half hour!"

"You've got to finish it faster than that!" Tom insisted.

"I can't, Tom. I just can't."

"All right, then we'll have to stall as best we can. Get to work.
Meantime, Astro and I will find a place to hide it. How big do you think
it'll be?"

There was a momentary pause and then Roger replied, "No smaller than six
inches. About like a shoe box."

"Could you make it three inches thick, and longer, instead of
box-shaped?"

Roger hesitated again. "Yeah, I guess so. Why?"

"Because I just thought of a good place to hide it. They'd have to tear
the ship apart to find it, _if_ they even hear the signal!"

"Attention! Attention! This is Coxine--" The pirate's voice bawled over
the audioceiver again. "You are under my guns. Stand by to receive a
boarding party. If you make any attempt to escape, you will be blasted!"

Tom grabbed the microphone to the audioceiver and replied, "Orders
understood, but you'll have to wait until we can build up air pressure
in the air lock."

"Very well," said Coxine. "We'll give you fifteen minutes."

Tom thought desperately. "You'll have to wait at least a half hour. We
broke a valve and have to replace it!"

Coxine's voice became suspicious. "Hey, what're you trying to pull?"

"Honest, Mister Coxine," whined Tom, "we're not doing anything."

"Fifteen minutes," roared Coxine, "or I blast a hole in your ship!"

"Yes, sir!" answered Tom, fully aware that the pirate captain would
carry out his threat.

Dropping the audioceiver microphone, the young cadet hurried to the
power deck, where Astro waited impatiently.

"Grab a couple of cutting torches, Astro," he said, "and get me a
lead-lined suit. I'm going into the reactant chamber."

"What?" demanded Astro.

"You heard me! I'm going to hide that beacon where they'll never find
it."

"In the reactant chamber?" asked Astro. "Impossible!"

"Remember when we first arrived at the prison asteroid? How thoroughly
we were searched?"

Astro nodded.

"Remember, they even searched the space between the inner and outer
hulls? There's three inches of clearance in there. If I cut into that
space through the reactant chamber and put the beacon inside, the noise
of the jets will keep Coxine from hearing it, and the radioactivity in
the chamber will keep them from picking it up on their detectors!"

Astro's face spread into a wide grin, and without another word, he began
preparing the cutting torches. Ten minutes later Tom emerged from the
chamber and nodded triumphantly. "All set, Astro! Now all we need is the
beacon."

Suddenly the _Polaris_ was rocked by a heavy explosion.

"They're firing!" yelled Astro.

"Roger! Have you finished the beacon?" demanded Tom over the intercom.

"I need another five minutes!" answered Roger. "I have to set the signal
to send out the SOS."

"Will it send out _anything_?" asked Tom.

The _Polaris_ rocked again from a second explosion.

"I don't know, Tom," yelled Roger. "I haven't even tested it!"

A third explosion jarred the rocket cruiser and the curly-haired cadet
knew that the air lock must have been demolished by now.

"Bring down what you've got, Roger!" he yelled. "We'll just have to take
a chance that it'll work. And grab yourself a space suit on the way
down. When they blast through the inner portal of the lock, we'll need
'em!"

"Right!" replied Roger. "Be down there in a second."

Astro and Tom hurriedly donned space suits and waited for Roger to bring
the beacon. In a moment the blond-haired cadet appeared with the
hurriedly contrived beacon. Tom quickly placed it between the two hulls
and sealed the hole in the inner hull.

A fourth explosion rocked the ship and the three cadets knew that by now
the air lock had been blasted away. They put on their space helmets and
climbed the ladder to the upper deck.

Coxine met them near the air lock, two paralo-ray guns clutched in his
gloved hands. Behind him, his crew swarmed in and fanned out all over
the ship.

But the space pirate stood on the control deck, glaring at Tom. "Whaddya
know! The Space Kid himself!"

"That's right, Coxine," said Tom quietly, "only the real name is
Corbett."

Suddenly there was a triumphant shout from one of the pirates. "Skipper!
The credits! All twenty million! We found 'em!"

Over their spacephones the three cadets could hear the pirates yelling
and cheering. Coxine bellowed for silence and the cheering quickly
subsided.

Paying no further attention to the three cadets, the pirate captain
ordered his men to repair the hole in the air lock and prepare for
immediate acceleration. There was a triumphant gleam in his eyes as he
announced their destination.

"With the Solar Guard on the other side of the belt, we're going to hit
the richest prize in the universe! The colony on Ganymede!"

He then turned and smiled at his three prisoners, adding menacingly,
"And we've got three passes to get us through the defenses!"




CHAPTER 19


Ganymede, the largest moon of Jupiter, was an important way station of
the Solar Alliance for all spaceships traveling between the outer
planets of Saturn, Uranus, Neptune, and Pluto and the inner planets of
Mars, Earth, Venus, and Mercury. The colony on Ganymede was more of a
supply depot than a permanent settlement, with one large uranium
refinery to convert the pitchblende brought in by the prospectors of the
asteroids. Refueling ships, replenishing supplies, and having a small
tourist trade, it was a quiet colony, one of many spread throughout the
system.

With the Solar Guard search squadrons hopelessly out of range on the
other side of the asteroid belt, the cadets' only hope of saving the
tiny colony lay in the beacon hidden inside the hull of the _Polaris_.

Leaving Wallace and half of his crew aboard the _Polaris_, Bull Coxine
had transferred the three cadets to the Avenger and thrown them into the
brig. As the ship accelerated toward the colony, Tom stared out of the
small, barred viewport while Roger and Astro sprawled glumly on the hard
bunks.

Roger finally broke the heavy silence. "What do you suppose Coxine meant
when he said he had three passes into Ganymede?"

"Give you one guess, pal," snorted Astro.

"He obviously expects us to give him the recognition signal," said Tom.

Roger sighed. "That's what I figured. But I was hoping I was wrong."

"At least we're all immune to truth drugs," said Astro hopefully. "He
won't get the recognition code out of us that way."

"That dirty space crawler wouldn't even bother with drugs," muttered
Roger. "They aren't enough fun. He likes to get what he wants the hard
way."

"Yes," agreed Tom. "We're in for a rough time, guys."

They all looked at each other, fully aware of what lay in score for
them. Finally Astro growled, "I don't care what he does to me. I won't
tell him a thing!"

"Same here!" exclaimed Roger.

Tom merely nodded, his face a grim, expressionless mask.

Suddenly three men led by Brooks, the radar operator, appeared in the
passageway outside the brig. Brooks stepped forward, opened the door,
and gestured with the paralo-ray gun in his hand.

"All right, you punks! Outside!"

Astro started to lunge for the pirate, but Tom grabbed him by the arm.
"Take it easy, Astro. That won't get us any place."

"You can say that again," sneered Brooks. "One crazy move like that,
kid, and I'll freeze you solid as a cake of ice! Now come on! Move!"

Tom, followed by Astro and Roger, walked slowly out of the brig, and
guarded closely by the three pirate crewmen they were taken to the main
air lock.

"All right," said Brooks. "The big ox and blondie, get in there!"

One of the crewmen opened the air-lock portal while the other two jabbed
Astro and Roger with ray guns. The two cadets stumbled into the chamber
and the door was slammed behind them.

"Lock it!" snarled Brooks.

When the men had secured the portal, Brooks turned and pushed Tom
roughly along the passageway. A moment later they reached the control
deck where Bull Coxine was hunched over his charts.

"Here he is, Captain," said Brooks. "The other two are sealed up in the
air lock like sardines!"

Coxine nodded and faced Tom, a thin smile on his face. "I told you I
would get the recognition signal, Corbett," he said. "And I will!"
Coxine walked over to a large valve on the after bulkhead and tapped the
needle indicator right beside it. Satisfied, he turned back to the
cadet.

"In two hours," began Coxine, "we'll be within range of the Ganymede
garrison and its radar. It takes exactly eight turns on this valve to
bleed the air out of the air lock where your two buddies are. So, every
fifteen minutes I'm going to ask you for the recognition signal, and
every time you say no, I'll turn the valve once. By the time we get
close enough to Ganymede to be picked up on their radar, you'll either
have given me the signal or your buddies will be dead!"

Tom stood listening to Coxine, his blood boiling at the giant spaceman's
cruelty. Suddenly he tore across the control deck and made a dive for
Coxine's neck. But the big man met him coming on and with a powerful
slap of his hand sent the boy sprawling back across the deck.

"You're a good man, Corbett," said Coxine, standing over the fallen
cadet, "but you're a _little_ man, and a good big man can lick a good
little man any time!"

Brooks and the crewmen laughed loudly as Tom dragged himself to his
feet.

"Well, do I get the signal?" demanded Coxine. "Or do your buddies get a
little less air?"

Standing unsteadily on his feet, with four paralo-ray guns trained on
his body, Tom thought quickly of Roger and Astro, alone in the darkness
of the air lock, soon to be clawing their throats for air; of the
merciless attack on the prison asteroid; of the helpless ships Coxine
had looted. All these things and more flashed through the curly-haired
cadet's mind as he weighed his life and the lives of his unit-mates
against an attack that would devastate the small satellite of Jupiter.
Tom could see through the pirate's demand for the recognition signal.
Once inside the Ganymede radar screen, he could attack the Solar Guard
garrison and wipe it out before it could raise a ship in defense.

"Well?" demanded Coxine, placing his huge hand on the valve.

Tom knew that if he could stall long enough, the signal aboard the
_Polaris_ might be picked up by the Solar Guard. Roger and Astro were in
good physical condition. They could conserve their energy as soon as
they discovered the trap. He had to stall and hope the signal would be
picked up in time.

"The only thing I'll ever give you, Coxine," said Tom through clenched
teeth, "is a blast of a paralo-ray!"

Coxine snarled in anger and turned the valve, shouting, "One more thing,
_Mister Hero_! The minute the air lock is empty, _you_ take a swim in
space too!"

Tom was prepared for that. He knew the pirate would not take defeat at
the hands of a Space Cadet easily. Tom was resigned to his fate. He was
ready to accept anything if it would serve the purpose of ridding the
solar system of Bull Coxine.

"Tie him to that chair," snarled the giant pirate captain. "And make
sure he's secure, or you'll go swimming in space with him!"

Tom was shoved roughly into the copilot's chair in front of the control
board and tied down with a thick rope. He winced as the heavy line dug
into his arms. After inspecting the job, Coxine dismissed Brooks and the
men with a curt nod and returned to his charts.

Tom sat in front of the control panel, his eyes sweeping the gauges and
dials and at last fixing on the master acceleration lever. Two feet away
was the lever that controlled all the power on the ship. If he could
only reach it, he could stop the _Avenger_ dead, and possibly even put
the ship completely out of commission. But try as he might, he could not
get his hands free.

Coxine looked up at the astral chronometer and walked over to the valve.
"Well, Corbett," demanded the burly spaceman, "what's the recognition
signal?"

Tom only shook his head.

"Must be pretty bad, sitting down there in the dark, hearing the oxygen
feed in slower and slower. You sure you won't change your mind?"

Tom looked squarely at Coxine, hatred in his eyes, and he watched the
pirate captain shrug his shoulders, turn the valve again, and return to
his charts.

The young cadet watched the astral chronometer, seeing the red hand
sweep the seconds away, and the black minute hand inch around the dial.
Over and over, the curly-haired Space Cadet refused Coxine's demand for
the recognition signal and then watched helplessly as the pirate gave
the air-lock valve another twist.

Nearly two hours had passed and Tom knew that they would soon be in
radar range of the Ganymede garrison. The pressure in the air lock must
now be within ten units of zero. Suddenly, overhead, the audioceiver
loud-speaker crackled into life.

"Attention! This is Ganymede traffic control. Identify yourself
immediately with authorized code!"

Coxine glared at Tom and put his hand on the air-lock valve. "Last time,
Corbett. Either you give me the Solar Guard recognition signal, or your
buddies are finished!"

Tom gulped. He had no assurance that Coxine would release Roger and
Astro, even if he did give him the signal. But he knew there was no
choice. He looked up at Coxine.

"Do I have your word as an _Earthman_ that nothing will happen to them?"
he asked quietly.

Coxine laughed. "Sure. I'll give you my word. I'll even bring them up
here so they can see the show and then let you go afterward. But by the
time I'm finished with the Ganymede colony the Solar Guard will have
your hides for handing out their secrets."

Tom knew what the pirate said was true. He was taking a gamble now. A
gamble that by this time his signal on the _Polaris_ had been picked up
and a fleet of ships would be on their trail.

"Attention! Attention! Identify yourselves immediately!" The voice from
the Ganymede traffic-control tower came over the audioceiver again.
Coxine's face twisted into a half-smile.

"Well, Corbett, do I get the signal or don't I?"

"Tell them you're a Solar Guard armed freighter." Tom's voice was low.
"You're assigned to operation 'Vista.'"

"Vista?" said Coxine excitedly. "Is that the code word? Vista?"

"Yes," said Tom. "Now open the valve!"

Coxine gave the valve a number of turns in the opposite direction and
jumped to the teleceiver. He flipped the key open and called Wallace
aboard the _Polaris_. "When they ask you for identification, tell them
you're working on operation Vista. That's the key word. Vista!"

"Right!" answered Wallace.

Coxine then turned to the audioceiver and spoke in confident, assured
tones. "Attention, Ganymede traffic control! This is armed freighter
_Samson_, assigned on project Vista. Request clearance for approach and
touchdown on Ganymede spaceport!"

"You are properly identified, _Samson_," replied Ganymede. "Proceed on
your present course. End transmission."

"End transmission!" roared Coxine triumphantly.

The giant pirate turned back to Tom, bellowing, "Thanks, Corbett. You've
just given me the key to everything I ever wanted."

"What do you mean?" asked Tom, suddenly frightened by the strange wild
gleam in Coxine's eyes.

"By the time I've finished with Ganymede, I'll have every ship on their
spaceport. A fleet big enough to hit any part of the Solar Alliance I
want! Solar Guard or no Solar Guard!"

"No! You can't!" gasped Tom.

"Can't I?" snarled Coxine. "I'll show the Solar Guard something they
never saw before. Their own ships blasting them right out of space!"

Coxine turned to the intercom, ordered Astro and Roger brought up to the
control deck, and then contacted Wallace aboard the _Polaris_.

"Yeah?" answered the spaceman from the control deck of the rocket
cruiser.

"We're going in according to plan! Train all your guns on the Solar
Guard defense installations and stand by!"

"Ready any time you say the word," replied Wallace.

Jumping back to the intercom, Coxine gave orders to the power deck for
full thrust, then ordered the radar bridge to relay the scanner image of
Ganymede to the control deck.

As the rocket ship surged ahead under the added thrust, Tom strained
against his ropes to watch the scanner and saw the clear image of the
colony. He could make out the outline of the uranium plant, the
atmosphere booster stations and small buildings clustered around the
spaceport. As they drew closer to the tiny colony, Coxine grabbed the
intercom and the teleceiver microphones and barked crisp orders to both
the Avengers and the _Polaris_' power decks. "Full braking rockets!"
roared Coxine.

Tom braced himself against the sudden reverse pressure of the powerful
nose rockets, and then, in a moment, felt the _Avenger_ come to a dead
stop. Watching the scanner again, he saw that they were directly over
the Solar Guard garrison. Coxine switched the teleceiver to the colony
frequency and spoke sharply and confidently.

"Attention! All citizens of Ganymede colony! This is Bull Coxine. Your
entire settlement is under my guns. Any attempt to raise ship and oppose
me will be met with instant destruction! Every citizen is hereby ordered
to assemble at the municipal spaceport within five minutes. All Solar
Guard officers and men will do the same. You have five minutes to
comply, or I will open fire!"

The giant spaceman flipped off the teleceiver before anyone on Ganymede
could answer. Pressing with all his might, Tom managed to see more of
the scanner which suddenly showed the people of Ganymede scurrying out
to the spaceport in panic. Coxine watched the activity on the scanner
for a second and then grunted his satisfaction.

Suddenly the hatch was thrown open and Astro and Roger were pushed into
the room by two crewmen.

Coxine turned to them, smiling thinly. "You owe your lives to your buddy
here. One more minute and you would've been walking with the angels.
Now," he added to the crewmen, "tie them up so they can see the scanner.
I want them to see how easy it is to knock off a Solar Guard garrison!"

"Why you--" Astro lunged toward the pirate but was stopped in his tracks
by a blast from a paralo-ray gun behind him. The big cadet stood rigid,
motionless, every nerve and muscle in his body paralyzed. Coxine sneered
and turned back to the intercom while his men tied up the two cadets.

Tom and Roger looked at each other and, without speaking, knew what the
other was thinking. Their only hope was the beacon signal aboard the
_Polaris_.

After the men had tied Astro, they released him from the effects of the
ray charge and threw him down beside Roger.

"How do you feel?" asked Tom.

"Like I've been run through a set of gears," mumbled Astro. "How about
yourself?"

"O.K.," replied Tom. "Was it"--he paused--"was it tough in the air
lock?"

Roger smiled. "Not as tough as it must have been on you up here. We
realized what was going on as soon as we found out we were losing air."

The blond-haired cadet shook his head and Tom noticed that both Roger
and Astro were weak from their ordeal in the chamber.

At the control panel, Coxine was bawling orders to his crew. "Jet boats
one, two, three, four, and five! Stand by to blast off!"

The three cadets looked at each other helplessly.

"Russell, check in," continued the burly spaceman.

"Russell here!" replied a voice on the intercom.

"You're in charge of the party. I want you to do one thing, and one
thing only! Take the largest ships on the spaceport and blast off. Don't
touch anything else! Just the ships. Those you can't get off the ground,
leave. We'll blast them later!"

"Aye, aye, sir."

Coxine strode over to the teleceiver. Immediately the image of a man in
the uniform of a Solar Guard major appeared on the screen. His voice
echoed in the control room.

"Hello, Coxine! This is Major Sommers! Come in, Coxine!"

"Yeah--" replied Coxine. "Whaddya want?" The pirate captain stepped
arrogantly in front of the teleceiver's transmitting lens, and from the
look on the officer's face, Tom knew he had seen Coxine on his own
screen.

"We've followed orders," said the major. "Our only request is that you
do not harm any of the citizens--"

Coxine cut him off. "Stow that space gas! I'll do what I please! I'm
sending down a crew of men. They have certain orders. Any interference
from you and I'll open fire with everything I've got--right in the
middle of the spaceport."

Tom gasped. The spaceport was now crowded with the citizens of the tiny
colony.

The major nodded gravely. "I understand," he said. "You may rest assured
no one will interfere with your men!"

"Huh!" sneered Coxine. "You don't sound so high and mighty now that
you're staring into the barrels of a dozen atomic blasters!" He snapped
off the teleceiver and roared with laughter.

Tom felt a shiver run down his spine. He could imagine the frustration
of the Ganymede garrison, a crack crew of fighting men, forced to
surrender without firing a shot. And he had been the cause by giving
Coxine the code recognition signal!

Coxine snapped an order into the intercom and a moment later Tom saw the
jet boats on the scanner, rocketing down to the surface of the small
satellite.

As, one by one, the small ships landed on the spaceport, the three
cadets could see the crowds of colonists fan out, allowing the jet boats
to come in without interference.

Coxine strode up and down the control deck restlessly, but keeping his
eyes on the activity below. Suddenly he rushed to the scanner, stared
hard, and then let out a roar of triumph.

The three cadets saw the reason immediately. On the scanner were the
unmistakable outlines of two Solar Guard heavy cruisers, four
destroyers, and six scouts, hurtling spaceward at tremendous speed.
Coxine spun around, balled his fists into tight knots, and shook them at
the three cadets.

"I've won! I've won!" He roared with insane laughter and there was a
crazed gleam in his eyes. "I've got the ships, the guns, the men, and
the secret of the adjustable light-key. By the time I'm finished with
the Solar Guard there won't be anything left of those crawlers but what
you can hear on a story spool, and the Solar Alliance will be run by one
man!" He paused, his face grew hard and he tapped his chest menacingly.
"Me!"




CHAPTER 20


"I don't care if the blasted ship blows up!" roared Captain Strong to
the power-deck officer of the Solar Guard rocket cruiser _Arcturus_. "I
want every ounce of thrust you can get out of this space heap!"

The young Solar Guard captain turned back to the loud-speaker of the
audioceiver, turned the volume dial a fraction, and listened. The steady
pronounced ping of Roger's signal beacon filled his ears.

When Strong discovered that Coxine had outwitted him, he had gone aboard
the rocket cruiser _Arcturus_ of Squadron Ten and had continued on
search patrol. He dared not break audio silence to warn the cadets
aboard the _Polaris_, lest he give away the position of the ship. Later,
when the radar officer of the _Arcturus_ reported a steady signal over
the audioceiver, Strong at first dismissed it as some form of
interference from space. But when Titan failed to report the arrival of
the _Polaris_ on time, Strong investigated the strange sound. Taking a
bearing on the signal, he discovered it came from a position dangerously
close to the small Jovian colony of Ganymede. After repeated attempts to
raise the _Polaris_ failed, and no distress signals had been received,
Strong feared that Bull Coxine had won again. In a desperate effort to
catch the criminal, he took repeated bearings on the signal and ordered
full emergency space speed toward the small satellite of Jupiter.

Contacting Commander Walters at Space Academy, Strong related his
suspicions and received permission to carry out a plan of action.

"I want you to engage the enemy at all costs!" ordered Walters. "Blast
his space-crawling hide into protons! That's an order!"

"Yes, sir!" replied Strong with grim determination. "There's nothing I'd
like better."

Six hours later Strong received confirmation of his worst fears. He was
handed a message that read:

     EMERGENCY:

     GANYMEDE GARRISON ATTACKED ZERO THREE HUNDRED HOURS BY TWO SHIPS.
     ONE VESSEL IDENTIFIED AS ROCKET CRUISER POLARIS. SEND AID
     IMMEDIATELY. ENTIRE COLONY AT MERCY OF COXINE. SIGNED, SOMMERS,
     MAJOR, SOLAR GUARD.

Strong realized at once that the cadets had been forced to give the
recognition code to the pirate. There wasn't any other way for the
pirate to penetrate the defenses of Ganymede. And, thought Strong
bitterly, to blast Coxine was to blast the cadets as well. The
commander's words echoed again in his ears, "... blast him, Steve!
That's an order!"

Strong turned to his second-in-command. "Man all guns! Stand by to
attack under plan S! We'll engage the enemy as soon as he's sighted!"

The young officer saluted and turned away quickly. But not before he saw
the mist in Steve Strong's eyes.

       *       *       *       *       *

Tom, Roger, and Astro watched the incredible scene taking place in front
of them with unbelieving eyes. Seven men were standing at rigid
attention on the control deck of the _Avenger_. Wallace, Russell,
Attardi, Harris, Shelly, Martin, and Brooks. In front of them, standing
equally rigid, Bull Coxine was addressing them in a low restrained
voice.

"Raise your right hands and repeat after me."

The men raised their hands.

"I hereby pledge my life to Bull Coxine!"

"... I hereby pledge my life to Bull Coxine...." repeated the men in
unison.

"To uphold his decisions, obey his orders, and fulfill his purpose of
destroying the Solar Alliance and establishing a new governmental
order!"

The seven men repeated the words slowly and hesitantly.

"All right," said Coxine. "From this day on, you are my chief
lieutenants. You will command the ships of my fleet, and when we destroy
the power of the Solar Guard and take over the Alliance, you will help
me rule our new order."

The seven men looked at each other, raised a mild cheer, and waited as
Coxine shook hands with each of them.

"All right," said Coxine abruptly as he reached the end of the line.
"Get to your ships and prepare for full acceleration. We go into action
immediately!"

The men filed from the room silently, each with a worried look on his
face. Coxine failed to notice their lack of enthusiasm and turned to the
three cadets.

"Some day, boys," he said, "you'll go down in history as being the first
witnesses to the establishment of the new order."

Astro glared up at the giant spaceman. "We'll be the witnesses to the
biggest bust in the universe when the Solar Guard catches up with you!"

"Yeah," drawled Roger in his most casual manner. "You're the one that'll
go down in history, Coxine, as the biggest space-gassing idiot that ever
blasted off!"

Tom suddenly guffawed. Though close to death, he couldn't help laughing
at Roger's remark. The big spaceman flushed angrily and with the flat of
his hand slapped the cadet across the face. Then, he turned to the
teleceiver and opened the circuit to all the ships that were standing by
in space around the _Avenger_, the ships of the Ganymede garrison.

"Stand by for acceleration," he called. "We're going to show the Solar
Alliance who's boss, beginning right now! I'll give you the target in a
few minutes but head in the direction of Earth!"

He faced the three cadets and sneered. "By the time I'm finished with
Luna City, the only thing active will be radioactive!"

Suddenly Gus Wallace could be heard screaming over the teleceiver, his
face a mask of fear and panic.

"Bull! Bull!" he shouted. "The Solar Guard! We just spotted them!
Squadrons! Heading straight for us! We've got to get out of here!"

"What?" roared Coxine, turning to his radar scanner. The blips on the
screen verified the alarm. He shouted into the teleceiver, "Man your
guns! We'll wipe them out right now!"

"But, Bull--" whined Wallace. "They'll blast us out of space!"

Coxine roared into the mike. "The first one of you yellow crawlers that
tries to run for it will be blasted by me! Man your guns, I said! This
is our big chance! Wipe out the Solar Guard now and the Solar Alliance
is ours for the asking! Fight, men! Fight!"

Tom, Roger, and Astro looked at each other, mouths open, not knowing
whether they should laugh or not at the dramatic speech of the huge
spaceman. But whatever the private feelings of the criminals, Coxine had
roused them to fever pitch and the boys could hear them racing through
the _Avenger_, preparing to fight the squadrons of Solar Guard ships
bearing down on them.

Coxine strapped himself in the pilot's chair and began barking orders to
his battle stations, whipping his men into action relentlessly.

And then suddenly Captain Strong's voice, vibrant and firm, came over
the audioceiver, demanding the surrender of the pirate captain and his
fleet.

"Never!" roared Coxine. "You'll get my surrender from the barrels of
every blaster I have under my command!"

"Then," replied Strong, "I have no alternative but to attack!"

With a coldness that reached across the void of space and gripped their
hearts with icy fingers, the three cadets heard their skipper give his
squadrons the deadly order!

"Fire!"

Coxine snapped his order at almost the same instant and the three cadets
felt the _Avenger_ shudder as her turrets began blazing away, returning
round for round of the deadly atomic missiles.

Racing from scanner to the control panel and back again, Coxine watched
the battle rage around him. With speeds nearing that of light, exhaust
trails cut scarlet paths through the black space, as the two opposing
fleets attacked, counterattacked, and then regrouped to attack again.
The rhythm of the blasters on the _Avenger_ had taken on a familiar
pattern of five-second intervals between bursts. Gradually, one by one,
the pirate ships were hit, demolished or badly damaged, but still they
fought on. Coxine, his eyes wild with desperation, now kept lining up
ships in his radar sights and firing, with no way of knowing which was
friend and which was foe.

Tom, Roger, and Astro watched the dogfight on the scanner in horrified
fascination. Never before had they seen such maneuvering, as the giant
ships avoided collision sometimes by inches. Once, Tom tore his eyes
away from the scanner when he saw a rocket destroyer plow through the
escaping swarm of jet boats after one of the pirate ships had been hit.

Fire and change course, fire and change course, again and again, Coxine
performed the miracle of escaping the deadly atomic blasters aboard the
Solar Guard ships.

Suddenly the three cadets saw the outline of a rocket cruiser bearing
down on them. The white blip on the scanner came closer and closer to
the heart of the scanner. Just in time Coxine saw it and shouted for a
course change. But even as the _Avenger_ swung up and away from the
attacking ship, the cadets saw the flash of flame from the cruiser's
turrets and a moment later felt the bone-rattling shudder of a near
miss.

The control deck suddenly filled with smoke. A flash fire broke out in
the control panel and the circuits sparked and flared. Tom was thrown
across the room and Roger landed on top of him.

"Up ninety degrees! Full starboard thrust!" roared Coxine into the
intercom. "Hurry, you space crawlers! We've got to get out of here!"

Tom quickly realized that in the smoke and confusion Coxine couldn't
possibly direct the ship back into the fight. There was only one
explanation. He was deserting his fleet and trying to escape.

And then, over the noise and confusion, Tom could hear the sound of
struggling bodies and Coxine muttering an oath between his teeth.

"I'll break you in two, you blasted space rat!"

There were more sounds of struggle, and Tom and Roger heard Astro's
voice replying grimly:

"Do it and then talk about it, big shot!"

Slowly the smoke cleared from the control deck and Tom and Roger
strained their eyes to see through the thick cloud. There, in front of
them, stood Astro, torn strands of rope dangling from his arms, in
mortal combat with Coxine. The two giants were holding each other's
wrists, their feet spread wide, legs braced, grimacing faces an inch
apart, struggling to throw each other off balance.

[Illustration: _Astro and Coxine were locked in mortal combat_]

Tom and Roger watched the two huge spacemen brace against each other,
muscles straining and faces turning a slow red as they tried to force
the other's hands back. Suddenly, with the speed of a cat, Coxine stuck
out his leg and kicked Astro's foot from the deck, tripping him. Astro
tumbled to the deck. In a flash, the pirate was on top of him, gripping
him by the throat. The Venusian grabbed at the hands that were slowly
choking the life out of him and pulled at the fingers, his face turning
slowly from the angry flush of a moment before to the dark-gray hue of
impending death!

Still bound and tied by the heavy rope, the two cadets on the deck were
helpless, as Astro's strength slipped from his body.

Tom turned to Roger desperately. "We've got to do something!"

"What? I can't get loose!" The blond-haired cadet struggled against the
ropes until the blood ran down his wrists, but it was a hopeless effort.

"Yell!" said Tom desperately. "Yell! Make a noise! Holler like you've
never hollered before!"

"Yell?" asked Roger stupidly.

"We've got to distract him!"

Tom began to bellow, and immediately was echoed by Roger. They shouted
and screamed. They kicked their feet on the deck and tore against their
bonds.

Astro's hands no longer fought the powerful fingers taking his life.
There was no strength in the cadet's hands now, but in the split second
that Coxine turned to look at Tom and Roger, he gave a mighty heave with
the last of his great strength and tore free of the pirate's grasp.

The Venusian jumped up and ran to the farthest corner of the control
deck, gasping for breath. Coxine rushed after him, but Astro eluded him
and stumbled to the opposite end of the control room, still trying to
suck the life-giving breath into his screaming lungs. Slowly his
strength returned.

Coxine made another headlong rush for the cadet, but this time Astro did
not attempt to get away. He stood squarely to meet the charge and his
right fist caught the pirate flush on the chin. Coxine staggered back,
eyes wide with surprise. In an instant Astro was on him, pounding his
mighty fists into the pirate's stomach and any place he could find an
opening. Roaring like a wild animal, the cadet no longer fought for the
honor of the Solar Guard or his friends. He didn't look upon the
criminal in front of him as Coxine the pirate, but as a man who had
nearly taken his life, and he fought with the ferocity of a man who
wanted to live.

Again and again, Tom and Roger saw their unit-mate pound straight,
powerful, jolting lefts and rights into the pirate's mid-section until
they thought he would put his fist completely through the man's body.

Just as Coxine looked as if he would fall, he suddenly charged in again.
But his powerful strength restored, Astro stepped back and waited for an
opening. Coxine threw a whistling right for Astro's head. The Venusian
ducked, shifting his weight slightly, and drove his right squarely into
the pirate's face. His eyes suddenly glassy and vacant, Bull Coxine sank
to the deck, out cold.

Breathing heavily, the cadet turned, wiped his face, and smiled
crookedly at Tom and Roger.

"If I ever have to fight another man like that again," gasped Astro as
he loosened the ropes around his unit-mates, "I want to have both fists
dipped in lead before I begin!"

He held up his hands. There was not a bit of flesh remaining on his
knuckles.

As soon as Tom was free he grabbed the pirate's paralo-ray gun. "We'd
better tie this crawler up!" he shouted.

"We'll do that," said Roger. "You try to figure out how we're going to
get off this ship!"

Suddenly, behind them, the hatch burst open and Captain Strong rushed
into the room, followed by a dozen armed guardsmen.

"Captain Strong!" yelled the three cadets together.

The young captain's face lighted up with a smile. He rushed over to Tom
and grabbed him by the hand, then turned to where Roger and Astro were
tying up Coxine.

Strong pointed his gun at the fallen pirate. "What happened to him?"

Roger smiled and nodded toward Astro. "Coxine told Astro he reminded him
of an ox he saw at a zoo once on Venus. Astro got mad--" Roger shrugged
his shoulders. "Poor Coxine, he didn't have a chance!"

Astro blushed and looked up at Strong. "Never mind us, sir," said the
big cadet. "How did you get here!"

Strong told them of having picked up the beacon signal. "That was quick
thinking, boys," he said. "It was the end of Coxine. If we hadn't
stopped him now--" Strong shook his head.

"But how did you get aboard the _Avenger_, sir?" asked Tom.

"This was the only ship that wasn't a Solar Guard fleet vessel, so it
was easy to spot. We captured the _Polaris_ right off the bat, and after
we searched it, figured you three were either dead, or aboard this one.
I gave the order not to fire on you, since we wiped out Coxine's fleet
before he could do any real damage. When we saw you accelerating, after
that last near miss--which incidentally was intended to miss you--we
came alongside, forced the air lock open, and took over."

"But didn't the crew offer any resistance?" asked Roger.

"No, and from the story they tell me about Coxine wanting to establish a
new order, or something like that, they were glad to surrender. They
think he's crazy."

When the enlisted men carried Coxine, still unconscious, off the control
deck, the three members of the _Polaris_ unit and their skipper watched
him leave silently. All of them realized how close the Solar Alliance
had come to destruction at the hands of the insane pirate. Finally
Strong turned to his crew of cadets.

"Well, boys," he said wearily, "we've recovered the adjustable light-key
and captured Coxine. I guess that finishes the space pirates!"

"Yes, sir," said Tom quietly. "And this sure teaches me a lesson."

"What's that?" said Strong.

"Never to think that being a Space Cadet is a matter of learning
something from a story spool. Being a Space Cadet is like being--" He
stopped. "Like nothing in the universe!"




       *       *       *       *       *




THE TOM CORBETT SPACE CADET STORIES

By Carey Rockwell

    STAND BY FOR MARS!
    DANGER IN DEEP SPACE
    ON THE TRAIL OF THE SPACE PIRATES
    THE SPACE PIONEERS
    THE REVOLT ON VENUS
    TREACHERY IN OUTER SPACE
    SABOTAGE IN SPACE
    THE ROBOT ROCKET