Produced by Greg Weeks, Mary Meehan and the Online
Distributed Proofreading Team at http://www.pgdp.net









                            Growing Season

                           By F. L. WALLACE

                _Why would anyone want to kill a tender
                of mechanized vegetation--with, of all
                things, a watch and a little red bird?_

           [Transcriber's Note: This etext was produced from
               Worlds of If Science Fiction, July 1959.
         Extensive research did not uncover any evidence that
         the U.S. copyright on this publication was renewed.]


The furry little animal edged cautiously toward him, ready to scamper
up a tree. But the kernel on the ground was tempting and the animal
grabbed it and scurried back to safety. Richel Alsint sat motionless,
enjoying himself greatly.

Outside the park in every direction were many tiers of traffic. He was
the only person in the park; it was silent there except for birds. One
in particular he noticed, all body, or entirely wing--it was impossible
to say which at this distance--soared effortlessly overhead, a small
bundle of bright blue feathers. The wings, if it had wings, didn't
move at all; the bird balanced with remarkable skill on air currents.
Everything about it might be small, but the voice wasn't, and it made
good use of every note.

Alsint twisted his hand slowly toward the sack beside him.

In that position the ship watch was visible. There was no need to look;
it was connected to the propulsion processes of the ship and would
signal long before he had to be back. Nevertheless he did glance at it.

In sudden alarm, he jumped up, scattering the contents of the sack.
The circle of animals fled into the underbrush and the birds stopped
singing and flew away.

He left everything on the bench. It was untidy, but his life would be
more untidy if he missed the ship. He ran to the aircar parked in the
clearing and fumbled at the door. The bright blue bird was changing to
red, but he didn't notice that.

He bounced the car straight up, sinking into the cushions with the
acceleration. High above the regular levels of traffic, he located the
spaceport in the distance and jammed the throttle forward. The ship was
there, and as long as it was, he had a chance. Not much, though. The
absence of activity on the ground indicated they were getting ready.

He dropped the aircar down as close as he could get and left it. There
was no time to take the underground passage that came up somewhere near
the ship. The guard at the surface gate stopped him.

"You're too late," said the attendant.

"I've got to get in!" Alsint said.

The guard recognized the uniform, but, sitting in the heavily
reinforced cubicle, made no move to press the button which would allow
the gate to swing open. It was a high gate and there was no way to get
over it.

He grinned sourly. "Next time you'll pay attention to the signal."

There were worse times and places to argue about it, but Alsint
couldn't remember them. "There wasn't any signal," he said. He caught
the cynical expression on the guard's face and extended his hand. "See
for yourself."

The watch was working, indicating time till takeoff, but the
unmistakable glow and the irritating tingle, guaranteed to wake any man
out of a sleep this side of the final one, were missing.

The guard blinked. "Never heard of that ever happening," he said. "Tell
you what--I'll testify that it wasn't your fault. That'll clear you.
You can get a job on the next ship and catch up with your own in a
month at the most."

It wasn't that easy, nor so simple. Alsint glanced frantically at the
watch. Minutes left now, though he couldn't be sure. If the signal
wasn't functioning, maybe the time was wrong too. "I'll never get on
that one again," he said. "It's a tag ship."

The guard scrutinized him more closely, differentiating his uniform
from others similar to it. "In that case you'd better go to the traffic
tower," he said reluctantly. "They'll stop it for you."

They would, but he'd waste half an hour getting past the red tape at
the entrance. There were a number of reasons why he couldn't let the
ship leave without him. "I know our crew," he said. "They'll be waiting
for me. Let me try to get on."

The guard shrugged. "It's your funeral." Slowly the gate swung open.

Alsint dashed through. He had to hurry, but it wasn't as dangerous as
the guard imagined. The watch had failed, but inside the ship was a
panel which indicated the presence or absence of any crew member. That
panel was near the pilot. He wouldn't take off without clearing it.

Besides, there was standard takeoff procedure--always someone at the
visionport, watching for latecomers, of which there were usually a
few. Alsint raised his head as he ran. He couldn't see anyone at the
visionport.

Breathing heavily, he brushed against the ship. Late, but not too late.
He turned the corner at the vane.

He didn't like what he saw. The ramp was up and the outer lock was
closed. They were waiting for clearance from the spaceport.

His composure slipped a little. If the clearance came within the next
few minutes, he'd be dead. Not that the clearance would come. A ship
just didn't lift off, leaving one of the crew behind--or he hoped it
didn't.

He pounded on the lock and shouted, though it was useless. Inside, they
couldn't hear him. The noise frightened a little red bird which had
been hovering nearby. It flew around his head, squawking shrilly.

       *       *       *       *       *

Alsint scowled at it. It reminded him unpleasantly of the park. If he
hadn't gone there, he'd be safe inside the ship. True, parks were rare,
and people who went to them even more rare. After so many months in the
ship, it had been a great temptation--for him, not the others. No one
else had been interested.

Now he had to get in. A tremor ran through the hull and he realized how
urgent it was. A little more of this and he would be caught under the
rockets.

The airlock was smooth, but he located the approximate latching point
on the outside and stripped off the watch, holding it against the ship
by the band. He tried to remember and thought the face should be turned
inward. He held it that way and hoped he was right. He closed his eyes
and swung hard with his fist.

His hand exploded with pain and he could feel the flash on his face.
The energy, which was sufficient to drive the instrument for a thousand
years, dissipated in much less than a second. An instant later the hand
which held the strap reacted to the heat. He dropped the useless watch
and opened his eyes.

He had figured it right and he was also lucky. The energy had turned
inward, as he had hoped, otherwise he'd have no hand, and the latching
mechanism had been destroyed. The resulting heat had buckled the plate
outward. The hull was trembling with greater violence as the takeoff
rockets warmed up.

The airlock was still very hot. His fingers sizzled as he grasped the
curled edge and pulled out. It moved a little. He shifted his hands for
a better grip and heaved. It opened.

He scrambled inside and shut it behind him, latching it with the
emergency device. Close, but it didn't matter as long as he'd made it.
The ship began to rise and the acceleration forced him to kneel in the
passageway between the outer and inner lock. He kept thinking of the
little red bird he'd seen outside. Burned, no doubt, as he would have
been.

Finally the rockets stopped and the heaviness disappeared. They were
out of the atmosphere and hence the ship had shifted to interstellar
drive. The heat from the rockets began to abate. He was grateful for
that.

He got to his feet and staggered to the inner lock and leaned against
it. That didn't open, either. He shouted. It might take time, but
eventually someone would come close enough to hear him.

There was air in the passageway and he knew he could survive. It had
been too hot; now it was getting cold. He shivered and shook his head
in bewilderment.

None of this was the way it ought to be. It had never been difficult to
get on the ship. If he didn't know better, he'd say--

But this was not the time to say that.

He didn't hear the footsteps on the other side. The lock swung in and
he fell forward. His burned hands were too cold to hurt as he checked
his fall.

Scantily clad, Larienne stood over him. "Playing hiding games?" she
asked. She got a better look and knelt by his side. "You're hurt!"

So he was, but mostly he was tired. In the interval before he accepted
the luxury of unconsciousness, the thought flashed across his mind
before he could disown it: Someone on the ship was trying to take the
plant away, or wanted him to fail.

Either would have been accomplished if he had been left behind.

       *       *       *       *       *

He sat in his room, thinking. He wished he knew more about the crew.
Six months was enough to give him wide acquaintance, but not the deep
kind. They were a clannish lot on the ship. His own assistant he knew
well enough, and the doctor. The captain he hardly ever saw. The rest
of them he knew by sight and name, but not much else: the few married
couples, the legally unattached girls, and the larger number of male
technicians.

None of them, as far as he could see, had any incentive to engineer the
mixup which had nearly caused him to miss the ship. Of course he might
be reading into it more than was there. It could have happened that way
accidentally. And then maybe it didn't.

His thoughts were interrupted by a knock. "Who's there?" he called.

Larienne walked in. "Nobody asks _who_," she said. "It's always _come
in_. Even I know that, and I've been on this traveling isolation ward
a mere three years."

She dropped into a chair and draped her legs, long legs that were worth
showing off. She had a certain air of impartiality that attracted
attention. She was smart, though, and knew when to discard impartiality.

She eyed him curiously. "I'm trying to discover the secret of your
popularity. That damn plant is pining for you."

"It's not me," he said. "You have to know how to handle it."

"Thanks," she said dryly. "I don't know how. But Richel Alsint, boy
plant psychologist, does. He knows when to increase the circulation,
when to give it an extra shot of minerals, and when, on the other hand,
to scare the damn thing out of its wits, which I sometimes believe it
actually has."

"Don't personalize it," he warned. "It's partly plant and partly a
machine. Your mistake is that you treat it as if it were wholly a
machine."

"Seems to me I've heard that before. What should I do that I don't?"

"Cycles," he said. "Rhythm. A machine doesn't need that kind of
treatment, but a plant does. Normally it starts as a seed, grows to
maturity, produces more seeds, and eventually dies. Our plant isn't
like that, of course. It never produces seeds, and, if we're careful,
doesn't die. Yet it does have something that faintly corresponds to
the original cycles."

She sighed. "It might help if I knew what it was--geranium, or
sunflower, or whatever."

He had told her, but apparently she didn't want to remember. "It isn't
one plant. It's been made from hundreds; even I don't know what they
were. One best feature from this, another strong feature from something
else. We've taken plants apart and recombined them into something new.
This is just--plant."

       *       *       *       *       *

Larienne dropped her legs to a more comfortable if less esthetic
position. "Hydroponics was simpler," she objected.

"It was," he said. "And if you want to know, old-fashioned dirt farming
was even simpler. Our combination plant and machine is merely a step
and a half ahead of hydroponics."

"Suppose you come out and tell me what I've done wrong," she said,
getting up.

"One last thing," he said. "Remember that plants evolved on planets.
No matter what we do, we can't convince the plant that it's still
on a planet. Light's the easiest. As far as we know, it will grow
indefinitely under our artificial light. Artificial gravity is
different. I don't know the difference, and neither do the physicists,
but the plant does. It can live in the ship just so long and then has
to be taken out for a rest. There are other things that affect it,
vibration, noise, and maybe more. You know how I have to keep after the
pilot to dampen his drive. All these things change the cycle it has to
have."

"Agreed," she said impatiently, meaning mostly that she didn't care.
"Let's go out and look at it."

The plant was a machine and the machine was a plant. It occupied
a large space in the center of the ship. And it wasn't wasted
space; properly cared for, the plant could supply food for the crew
indefinitely.

The plant machine evolved from earlier attempts to convert raw material
and energy into food. Originally algae were used because they were
hardy and simple to control. But the end product had to be processed
and algae did not produce the full scale of nutrients in the proper
proportion for the human diet.

Certain cells of more highly evolved plants were far more efficient in
the conversion of raw materials into proteins, vitamins and the like.
Originally, inedible parts were produced too, the stalk, which might or
might not be used for food, and the leaves and roots. On a planet with
plenty of room, this made little difference. But on an overcrowded
planet, or one with a poisonous atmosphere, and especially on a ship
where space was at a premium, normal methods could not be used.

In the plant machine were certain cells which had been selected because
of their ability to produce a variety of nutrients. The inedible parts
of the plant were replaced by machinery. Instead of roots to draw water
and minerals from the soil, there were pumps and filters. Instead of
stems to elevate that material to the leaves, there were hoses. Instead
of entire leaves to perform photosynthesis, there were only those cells
most efficient at the process. There were no seeds, tubers, roots, nor
fleshy stalks to store the food. Collecting trays replaced them. There
was no waste space; nothing was produced that couldn't be eaten.

There was an additional problem of reconciling the various cell fluids
and different rates of growth. In part, that was accomplished by the
plant machinery; the rest depended on the plant mechanic. His job was
akin to that of a factory manager. In a sense, the plant machine was
nothing more than a highly organized and complex factory, of which the
productive units were the actual cells.

       *       *       *       *       *

Alsint went along the aisles. Dials and gauges everywhere--a continuous
record was kept of every stage. Each record was important, but nothing
that could be reduced to a formula. The plant was not in bad shape,
considering. At his instructions, Larienne made certain adjustments.

"Why reduce the light?" she asked. "I thought this unit grew better
with stronger light."

"It does, within limits."

"I was within those limits."

"You were, but consider this. The plant from which these cells came
grow fastest in early summer, but it isn't edible at that time. In
late summer, it is. The light change merely corresponds to original
conditions."

Partly convinced, she nodded. "What kind of plant was it?"

He smiled. "I don't know. It's the nth cellular descendant of some
plant that once grew on Earth."

She touched a dial she had adjusted. "And on this one you reduced the
fluid flow into it, and switched the output to another unit I've never
seen it connected to."

"Same thing. The input corresponds to the difference between the dry
and rainy seasons."

"But things grow faster with more water."

"They do, unless it happens to be a cactus."

She shook her head. "I give up. Cactus yet."

"I didn't say it was cactus. It might be, and, if so, could be very
efficient in preparing water and soil minerals for use by the leaves.
There aren't any leaves, of course, but that doesn't change the
principle."

"Don't think I'll ever understand it," she said. "Enough to get by, but
not the way you do."

She stood at his side. It was pleasant to have her there. Other things
were pleasant to imagine too, but he refrained. There were married
couples on the ship, just as there were unattached men and women. But
when the men outnumbered the women three to one, certain conclusions
were inevitable, and he had made them the first few days aboard. Unlike
many of the others, he didn't expect to stay on the ship forever. In a
year and a half he would either prove his point or fail.

Then he would leave. Would Larienne come with him? Maybe, but it wasn't
a good bet. A liaison, no matter how easy it was to enter into, was not
always easy to break. There would be time to decide about that later.

"Is everything all right?" she asked.

He glanced over the dials and mentally added them up. "Reasonably so.
Yes."

"Good," she said. "Unless you need me sooner, I'll be back in about ten
hours."

He nodded and she left. It was unnecessary to ask where she was going.
He could tell that from her manner. They had raised a hitherto unmarked
solar system and she was helping tag it.

His injured hands were aching with the effort, though Larienne had
done most of the actual work. He started toward his room, and then, on
another thought, turned into the dispensary. Franklan he knew better
than anyone except Larienne, and he might get a fresh viewpoint from
him.

       *       *       *       *       *

Franklan was waiting. He had a doctor's degree from some planet, but
on the ship titles were largely ignored. "The wounded hero comes back,
holding our food supply precariously in his skilled hands," he said as
Alsint entered.

The sarcasm was not altogether friendly, Alsint decided. Without
comment, he laid his hands on the table. He did not pretend to be a
hero and he was not even particularly stubborn. He had put together a
plant in a better way, one that ought to withstand the rigors of tag
ship service, and he intended to see that it got a fair trial.

"What do you know about ship watches?" he asked cautiously.

"Fifteen years on a tag ship, and I've never personally seen a failure.
I suppose it can happen." Franklan glanced up. "It's too bad you had
to destroy yours to get in. I'd like to see what an examination by our
technicians would show."

The same thought that he had, though Franklan seemed to have attached
the opposite meaning to it. "Interesting, isn't it?" Alsint said
evenly. "But I was thinking of the connection it has to the crew panel."

Franklan bit his lip. "I hadn't considered that."

"I have. The pilot had to check the crew panel before he could take
off. If he did, and saw that I was missing, why didn't he wait? If he
didn't see that I wasn't inside the ship, then the panel was defective
too. It's hard to believe."

Franklan filled a small tank with fluid and motioned toward it.
Alsint dipped his hands in. It stung, but he could see that it had a
pronounced healing effect.

Franklan was watching him narrowly. "Service on a tag ship is
voluntary. It has to be, considering all the solitude we have to take.
Any man can withdraw any time he wants. A lot of them do, especially in
the first three years. However, bear this in mind. You've practically
accused someone on the ship of trying to leave you behind. I know you
do think that. And if you can produce evidence, I'll believe you. But
there is one person on whom suspicion will fall first."

That was what Alsint wanted to hear. He'd gone over it in his mind and
couldn't find anyone to suspect. Any clue was welcome.

"Who?" he asked.

"You," said Franklan. "If _I_ wanted to leave the tag ship service, I'd
see to it that I made as graceful an exit as possible. Forced out by an
accident, of course. I'd want to tell people that."

       *       *       *       *       *

He might have expected that kind of attitude. Franklan was proud of the
work he was associated with. Nothing wrong with that; everyone had that
right. In fact, if he didn't, he had no business doing it.

However, it made things difficult for Alsint. He was on a tag ship
for other reasons. He had evolved several strains of plant cells that
should be especially suited for use on tag ships.

For some reason the plants on tag ships were always dying. Ships
returned to inhabited planets for refueling with the machines intact
but with the plants dead. The plant cells had to be replaced. It was
not that the actual material was expensive. It wasn't. But the process
of getting the strange cells to work together as a new unit was
time-consuming and enormously costly. That was where the trouble came.
The plant couldn't be fitted together like an engine.

Alsint had evolved cells that were far more viable, but the only way to
test that was in actual use. He had received permission from the Bureau
of Exploration to install his plant in a ship and try it for two years.
If at the end of that time the plant was still alive, he had something
really worthwhile. The only stipulation was that no one on the ship
should know that it was a test, since they might, out of consideration
for him, modify the service the ship normally went through. It had to
be a true rough, tough test.

And he was getting it, in more ways than he had expected. Unless he
could stay with his plant for the next year and a half, all his work
would go for nothing.

He drew his hands out of the fluid. "Do you think I'm trying to run
out?" he asked quietly. He had proof that he wasn't, but he couldn't
use it.

Franklan shrugged. "Honestly, I don't. But I'm not blinding myself
to what the others will think." He squinted professionally at the
burns and dried the hands with a gentle blast of air. He picked up a
large tube and squeezed a substance on them which was absorbed almost
instantly. "There. You'll be all right in a few days."

"Thanks," Alsint said laconically and stood up.

As he went out the door, Franklan called after him. "If I see the
captain, I'll tell him I don't think you tried to jump ship. I doubt
that he'll ask. As I said, service on this ship is voluntary."

Personally, Alsint didn't care what Franklan told the captain. However,
he was at a definite disadvantage. Next time they came to a planet, if
he were to disappear, nobody would be overly inquisitive.

       *       *       *       *       *

The tagging operation was far from complete--seven planets in the
system and each had to be thoroughly investigated. Long-range
investigation, of course. A tag ship rarely landed, and then only
when the planet under consideration seemed extremely desirable for
colonization, enough to warrant closer observation.

It didn't matter whether it had a breathable atmosphere or not, whether
it was ice-bound or blazing hot. These were minor difficulties and
engineering ingenuity could overcome them. There were other criteria,
and it was for these that they were checked.

Alsint went out into the ship. There was a lot of activity, but much
of it was invisible, electronic in nature, affecting only instruments.
The ship had slipped into an orbit, the plane of which intersected the
axis of planetary revolution at the most effective angle. The ship went
around twice while the planet revolved three times. In that period the
mineral resources were plotted and the approximate quantities of each
were determined.

Larienne looked up as he came near. "This is a real find," she said
cheerfully.

"I suppose you've located the heavy stuff," he said, knowing that it
was a superfluous statement.

"What else would we look for?" She bent over the small torpedo shape
she was working on. "Not just one, either. This is the second planet in
the system with enough heavy elements to be worth settling."

"What's the gravity?" He didn't always share the enthusiasm others had
for their discoveries.

"The first was 1.6. This is about 2.3. A little high for personal
comfort, but with the mineral resources there, the settlers can manage."

"What about atmosphere?"

"The first hasn't much, frozen mostly. This one has chlorine in it."
She grinned at him. "Your old theme, huh?"

It was an old theme, though he didn't argue it. He was entitled to
personal reactions. "Maybe. Would you like to live on either of them?"

"Don't have to," she said, making an adjustment on the torpedo. "Never
get out on a planet more than twice a year. In fact, I've almost
forgotten what a year means."

That was the point, possibly, though there was no use to discuss it.
"Anything else of interest?"

"We're coming to a smaller planet. Land, oceans, warm enough, and with
an atmosphere we can probably breathe as is. Don't know the composition
of the solid matter yet, but from our mass reading, it's a good bet
that there won't be enough heavy stuff to justify settlement." She made
a final delicate adjustment on the torpedo and began wheeling it to a
launching tube. "This one's in a rich system, though, and will probably
be used as an administration planet--vacation spot too. It won't go to
waste, if that is what's worrying you."

In a way, it was. It was too bad that so many planets that were
otherwise ideal for human habitation had to be passed over because
they lacked the one essential. There was no help for it, of course. To
settle planets, spaceships were necessary--and heavy elements to drive
those ships. Nothing else mattered in the least.

       *       *       *       *       *

Larienne snapped the torpedo in place and pressed a stud. The dark
shape disappeared. Out in space, it fell into an orbit which
eventually would land it safely on the planet.

"There," she said with quiet satisfaction. "It's tagged, and it will
stay tagged until somebody digs it up."

It might be a month, or a hundred years, before Colonization got around
to it. Meanwhile the torpedo was there, broadcasting at intervals the
information that the tag ship had discovered. Somewhere in a remote
planning center, a new red dot appeared in a three-dimensional model of
space, to be accounted for in a revised program of expansion.

Larienne brushed the hair out of her eyes. There was a smudge on her
face. "I'm busy," she said. "But I can get out of this if you need me."

As long as she was more interested in what she was doing, he'd rather
not have her. He shook his head. "I'll manage," he said, and headed
toward the plant.

The instant he entered, something seemed wrong. He couldn't say what it
was without investigation. It was a big complex machine as well as a
plant, and even reading all the dials was not enough; visual inspection
was necessary too. He started at one end and worked toward the other.
The gauges indicated nothing out of the ordinary, but the plant was in
bad condition.

It was something like a tree, the trunk and leaves of which were sound
enough, no discernible injuries, but nevertheless dying. At the roots,
of course. This plant had no roots, merely a series of tanks and trays,
each connected to others in a bewilderingly complex fashion. In that
series, though, was something which corresponded to roots.

He was near the end of the first row before he spotted part of the
trouble. A flow-control valve was far out of adjustment. His hands were
bandaged and clumsy, but he tried to reset it. It was jammed tight and
he couldn't move it.

He could call Larienne, but she was busy. So was the rest of the crew.
With sufficient leverage he could turn the valve. He looked around for
something he could use. A small metal bar leaning against the wall
nearby seemed adequate.

He picked it up--and the bar burned into the bandages. He knew what it
was; he didn't have to think. He could hear the sparks as well as feel
it. Fortunately his shoes were not good conductors and not much of the
charge got through.

With an effort he relaxed his convulsive grip, and still the bar stayed
in his hand. It had fused to the bandage and he couldn't shake it off.
The bar was glowing red; only the relatively nonconductive properties
of the bandage--heat as well as electricity--had prevented his instant
electrocution. And the bar was sinking deeper into the bandage. If it
ever touched his flesh, the charge would be dissipated--through his
body.

He had to ground it. The metal tanks which held the plant would do
that, but also crisp the plant beyond salvage. He had to make a fast
choice.

       *       *       *       *       *

Holding the bar at arm's length, he ran through the aisle, and, at the
far end, thrust it against the side of the ship.

The resulting flash staggered him, but he stayed on his feet. Though
the metal began cooling rapidly, it remained fused to the bandage. He
laid one end on the floor and stepped on it, tearing it loose.

It was a plain metal bar, made into a superconductor, with an unholy
charge stored in it. This couldn't be an accident. It took work to
turn ordinary metal into a superconductor at room temperature. Also it
couldn't be placed just anywhere. If the charge were to remain in it, a
special surface had to be prepared.

The trap had been set up for him, and he had walked into it. The
bandage had saved him, nothing else. That was the one thing the
unknown person hadn't taken into account.

Who? Larienne? She had access to the plant. But so did anyone else,
just by walking in.

Not Larienne. She had her ugly moments and might try to kill him in a
fit of anger, but she wouldn't plan it coldly, nor go through with the
scheme if she planned it. It didn't take special knowledge to sabotage
the plant. Any control could be moved drastically and the plant would
suffer. The only technical knowledge required was that of making the
bar into a superconductor, and that knowledge she didn't have. True,
she could ask someone to do it for her. But she wouldn't.

Alsint sat down. The actual physical damage from the electrical shock
wasn't great. The certainty that someone had tried to kill him was.

Why? Violent personal hatred for himself he could rule out. He'd
been careful in his contacts with the crew. Only a psychotic could
manufacture a reason to hate him, and psychotics didn't last long on a
tag ship.

It had to be connected to the plant. Someone on the ship was trying to
take it away from him, or one of his competitors had hired one of the
crew to see that he didn't survive. The last was unlikely.

He had no proof that his plant was better, merely a belief that it
was. It seemed illogical that anyone would want to eliminate him on the
strength of an untested belief.

But except for Larienne, no one had enough knowledge to nurse the plant
along for the required two years. Unless he remained alive, no one
would benefit.

He shook his head. It was difficult to add up and arrive at a sensible
answer. One thing he knew, though--hereafter, he'd have to be on his
guard at all times.

He could go to the captain with his story. He considered and rejected
that in the same instant. He'd have to tell the captain everything,
which would invalidate the test. He'd have to handle this by himself.

He got up and continued his inspection of the plant, making minor
adjustments to compensate for the damage. Except for that one valve,
nothing seemed far out of line.

That done, he limped to the dispensary. His hand was aching where he
had torn the bar loose and ripped the flesh.

"Back again?" said Franklan. "Any new information on the enemy?"

By itself, that was a suspicious statement. How could he know about
the latest incident? The easiest answer was that he didn't. He was
referring to the time Alsint had nearly missed the ship.

"Not a thing," Alsint muttered. Unless he wanted to reinforce
Franklan's original opinion, he'd better keep this to himself.

Franklan looked at his hand. "Whatever you've done, I don't recommend
it. It's not the way to get well fast--or at all."

"Grabbed something hot," Alsint said. Might as well say that. The bar
was now just a bar and no examination would reveal that it had been a
superconductor. Same with the insulation it had rested on. He couldn't
prove anything.

       *       *       *       *       *

Franklan rattled the instruments. "Nothing serious. This'll heal on
schedule, but it's going to hurt while I fix it." He administered a
local anesthetic below the elbow.

It made Alsint dizzy. He sat down and closed his eyes while Franklan
worked. He relaxed more than he intended and then deliberately opened
his eyes because he was drowsy and didn't want to fall asleep.

Over Franklan's shoulder, behind the window that swung out from the
dispensary to the corridor, was a little red bird. It was much like
the one that had fluttered around as he had tried to get on the ship.
Perhaps it had come in with him and hidden in some quiet place until
now. It was possible.

Franklan looked up. "What are you staring at?"

Alsint's tongue was fuzzy. "Outside the window behind you is a little
red bird," he said, speaking distinctly to overcome the side-effects of
the anesthesia.

Franklan went on swabbing, not bothering to glance behind him. "You're
tired," he said. "And look again at that bird outside the window. For
my sake, tell it to put on a spacesuit. If it doesn't, it will die in a
matter of seconds."

Startled, Alsint looked around. He was mixed up in his directions. He
was facing the visionport, plain empty space, not the corridor.

He blinked his eyes frantically, but the bird wouldn't go away and it
didn't die. There was no air out there, millions of miles from the
nearest planet. The bird flapped its wings in the airless space and
went through the motions of singing.

       *       *       *       *       *

It was ridiculous. There was nothing to carry the sound. But he
could imagine hearing it anyway, through the thick armorglass of the
visionport--a bird singing in space.

Resolutely he closed his eyes and kept them closed. He had enough
trouble without taking on hallucinations.

Franklan finished the new bandage and tapped his shoulder. "You can
come out of it now."

Alsint tried not to, but he couldn't resist. He stared past Franklan
toward the visionport.

"Is it gone?" asked Franklan. His voice was quiet.

"It's gone," Alsint said in relief.

"Good. These things happen occasionally. As long as you can adjust back
to reality, you have nothing to worry about." Franklan rummaged through
the medical supplies. "Take these. They may help you."

Wordlessly, Alsint took the packet and went back to his room. He was
sweating and shaken.

Franklan hadn't seen it because he hadn't looked, but there had been a
bird out there, or there hadn't. If not, Alsint's contact with reality
was precarious and he'd have to watch himself. Franklan had hinted at
that. Maybe he wanted Alsint to believe it.

But it didn't mean there hadn't been an actual bird. It could be put
there in a plastic bubble that wasn't visible against the blackness of
space. If so, it was an ingenious way of harassing him.

He relaxed at that formulation. It hadn't been worth the effort,
but it did prove one thing--his unknown antagonist had an excellent
imagination.

       *       *       *       *       *

Time passed--days, perhaps, though that unit had little meaning on the
ship. It was the work period which counted and nobody had bothered to
tell him how long that was. The last planet of the system was analyzed
and the permanent markers sent down. The star was tagged and the ship
proceeded on its way.

What the destination was, Alsint didn't know and didn't inquire. They
were going somewhere, to uncatalogued stars, and that was enough to
know.

His hands healed and the bandages were removed. Larienne was reassigned
to help him. The rest of the crew, whatever they guessed, or sensed,
said nothing and the normal pattern of life on the tag ship seemed
re-established.

His anxiety faded. It was not, he was sure, the end of the attempts to
remove him, but he had time to think, to plan countermeasures.

He was not wholly prepared. He and Larienne were approaching the plant.
The door was open and he could see inside. He glanced casually at the
row on row of mechanism, and stopped.

"What's the matter?" asked Larienne.

He moistened his lips. "Go around to the other side and close the door.
Be quiet about it, but close the door quickly."

She stared at him curiously and started to go inside.

He grabbed her arm. "Around, I said. Not through."

She shrugged and went around. In time he could see the other door
close. Then she came back.

"What's inside?" she whispered, adopting his own attitude.

"Something I want you to see."

She peered in. "I can't see anything."

"It's out of the line of vision now, but it's still in there." He swung
the door nearly shut. "Inside, fast. I'll show you."

Obediently she went in and he followed, closing the door behind him.
She waited.

"The bird," he said. "I want you to verify that it is in here."

"Bird?" She was puzzled and dismayed. "How did a bird get in here?"

"I don't know. I'll figure that out later." There was no need to
whisper, since it couldn't escape; nevertheless he did. "It's a
psychological stunt. The best way to stop it is to catch the bird."

She drew away uncertainly. "You saw it in here?"

"I did, and I want you to be with me when I find it."

"Then we should make a lot of noise. It will fly up if it's frightened."

"Good. You take that aisle and I'll take this. Yell when you see it."

They separated. He hunted carefully, moving everything that could be
moved, looking for the flash of red wings. The bird was shy and had
hidden.

They met in the center aisle.

In answer to his unspoken query, she shook her head. "I didn't see it."

"It's here," he said stubbornly. "I can't be mistaken."

She started to say something and changed her mind. "Let's look again,"
she suggested. It was not what she intended to say. What she thought
was plain from the expression on her face.

       *       *       *       *       *

Again they went through the plant machine, searching. Every crevice,
every hidden corner was examined. He peered into the machinery, the
tanks and the trays, above and below. They looked, but there was no
bird.

Larienne stood beside him and glanced up at the ceiling. "Maybe it got
out through the ventilators."

"It couldn't," he said harshly. The ventilators were also filters; a
microbe would have difficulty getting through. She was trying to give
him a way out, but he couldn't take it.

The room in which the plant machine was housed was not a simple open
space; there was structure throughout. But it was inconceivable that
something as large as a bird, even a small bird, could escape detection.

"I'll take care of the plant," he said quietly. "I want to think."

She left. He knew how she felt. It was worse because she did feel that
way.

He had scored against himself. Larienne would say nothing to the rest
of the crew, but it would come out. Emotional reactions couldn't be
hidden. And if there was ever an inquiry, she'd have to tell her story.

Franklan would see that there was an inquiry. That was his job. There
was nothing particularly arduous about life on a tag ship, yet not
everyone was suited to it. Monotony--and each person had to adjust to
the others as well as the ship. There was no room for a person who saw
things.

It was a most effective attack, without danger for the man or men
behind it. Twice he had seen something that wasn't there, and there
were witnesses to testify against him. It would be enough to remove
him from the ship. The subsequent treatment wouldn't harm him, but the
ship would be gone and he'd never get back on. Tag ships were just too
unpredictable; they came and they went as they pleased, and no one
could say where they would next arrive.

Baffled, he tried to catalogue the crew. Not Larienne. She'd live with
him if he wanted, more readily now than before. Ordinary rules didn't
apply to her; sympathy counted for most.

Nor was it Franklan. Bluntly he'd given his opinion, but that didn't
mean he was responsible for this. The person who was behind it was
keeping well hidden.

Alsint went wearily down the line, adjusting and readjusting.

On one of the handles was--a tiny red feather.

       *       *       *       *       *

He stared at it, relief forming nebulously in his mind. A bird _had_
been there. How it had gotten in and then out again through closed
doors, he didn't know. That part was unimportant. It _had_ been there.

It wasn't a hallucination, though for a time he'd almost believed it
himself. Now he knew.

Gingerly he picked up the feather. It was no proof, except to himself.
That was enough. He could do something about it.

The trap for him was set, but wouldn't be closed immediately. The ship
would not go out of the way except in extreme emergency. In another
four months it would run low on fuel and material for the tagging
operation, assuming normal conditions. The ship would then return to
the nearest inhabited planet.

That was the way tag ships operated. Unlike other ships, freight or
passenger, their objective was not to get from one inhabited planet to
another as fast as possible, but to stay away as long as they could.
For that reason, of all ships, they alone had to have the plant. No
other food supply was so economical of space and weight.

Once they reached a planet, he'd be referred to the authorities for
psychiatric examination. Eventually he'd be cleared, but by then it
would be too late. _Unless he could forestall it._

There was a way to do that, though it was dangerous for him, and he
stood a chance of ruining the plant.

He made up his mind and went back down the line of controls. Larienne
might question some of the new settings, but she'd defer to his
judgment.

It took two weeks for the plant to decline so even the captain could
see that it was impossible to go on. As master of the ship, he disliked
abandoning tagging operations even temporarily, but the crew had to eat.

       *       *       *       *       *

It was a planet. Nothing out of the ordinary, there were many planets
like Earth. Not many that were settled, though; almost uniformly,
that kind of planet lacked the heavy elements that made colonization
economically feasible.

It was pleasant and sunny, great grassy glades and an equal amount of
forests. No intelligent life on it, so there was nothing to worry about
on that score. Animals, big and little, but ordinary weapons would
discourage them.

Half a mile away was the ship, ready for instant flight. Not that there
was anything to flee from. That was the way it had to come down if it
was ever to rise again.

The plant had been stripped to components and spread over the ground.
An extensive layout, but it was necessary if the plant was going to
get full benefit of planetary conditions. It had been put together to
facilitate disassembly, and it hadn't taken long to remove it from the
ship.

A transparent canopy covered it, protection from the elements. A sudden
rainstorm could drastically alter the concentration of the vital
fluids. There was also an electrified fence to keep out stray animals.

Everything except root cells was exposed to the sun and wind. Under
these conditions the plant began to recover from the deliberate injury
he had done it. Why plants should recover so easily was still a
mystery, but generations of plant mechanics had discovered that they
always did.

Alsint took the sundown shift. The plant could be left alone at night,
locked up with the knowledge that nothing big enough to damage it could
get in. It was better if there was someone to make minute adjustments
from time to time, but that was not the reason he was there.

       *       *       *       *       *

Sundown or sunrise, and sundown was better. Either time, men were
outside the ship who didn't have to account for their whereabouts. More
were out at sundown. And one of them, sooner or later, would be the
person he wanted.

The plan was simple. Give the man every opportunity to kill him, make
it irresistible--but shoot first. If the man lived, he would talk. If
he didn't, there would be some clue in his personal effects. Dangerous,
but if Alsint wanted to profit from his plant, he had no choice.

Days passed and no one came near. He could and did retard the regrowth
of the plant, but in that respect he was limited. He couldn't be too
obvious about it. The time came when he couldn't stall any longer. In
reply to the captain's blunt question, he had to admit that in the
morning the plant would be in as good condition as he could get it.

       *       *       *       *       *

He sat that night in the enclosure, knowing this was his last chance.
It grew dark and night sounds intruded. The lights in the ship went
out. Only the light near him remained. He was careful to sit at the
edge of illumination, visible, but a poor target.

Animals snuffled in the brush near the electrified fence. They had
learned quickly and knew better than to touch it. And there was another
sound--no animal.

He quietly shifted his arm and held the light in readiness. He
listened. Someone was crawling through the brush. He had to wait. It
was hard on his nerves, being bait.

He flashed the light on suddenly.

The man was half hidden behind a bush and Alsint couldn't see his face,
but the gun in his hand glittered through the leaves.

"Surprise," said Alsint. "Don't try anything."

The man stood there, but he didn't drop his gun.

Alsint didn't like it. He couldn't identify the man. If he ran back
into the forest, Alsint wouldn't know any more than he had in the
beginning. He fingered the gun. "Come out where I can see you," he said.

The man didn't move--waiting until his eyes adjusted to the light
shining on him, decided Alsint. As a choice, his own life came first.
He raised the gun.

Before he could fire, a red bird attacked his eyes, squawking wildly.

He didn't drop the light. He tried to bat the bird away from his face,
but it clung to his hair. Before he could crush it, he heard the whoosh
of a gas gun. And the sound came from _behind_ him. That was his
mistake. There was more than one of them.

He breathed once and then felt himself fall forward.

       *       *       *       *       *

It was morning when he awakened, bright sunlight streaming into his
eyes. That was not the reason his head hurt, though he could be
thankful the man or men had used a gas pellet instead of a projectile.
Whoever _he_ or _they_ were.

He got up and staggered toward the ship. A few steps were all he took.
The ship wasn't there. He leaned against a tree and looked wildly
around. The plant was gone too.

Shakily he fumbled for a cigarette. Smoke didn't help much. They had
taken the plant aboard while he was unconscious. They had left him
alone on an uninhabited planet.

A pretty planet and a useless one. No ship ever stopped here except to
revive a plant, and that wouldn't happen often. It would be several
lifetimes before another ship came, if one ever did.

He stared miserably into the bright blue distance and thrust his hands
into his jacket, and made a discovery. They'd left him a gun, at least,
and ammunition. He'd be able to keep himself alive at a minimum level.

There was a whistle in the distance. His head came up. He wasn't alone.
Larienne?

It couldn't be. From the direction of the sound, if it was Larienne,
she was hiding in a nearby tree. But Larienne didn't like trees.

"Richel Alsint," said a loud voice. Behind him this time.

He turned around. There was no one there. Nothing but a red bird
sitting on a branch. He started. The same red bird that had flown
mysteriously in and out of his life. If it weren't for that creature,
he'd be safely on the ship. He raised the gun.

From one foot to another, the bird hopped on the branch. "Birds can't
talk," it screeched. "Birds can't talk."

The implication was clear. "Since you _can_ talk, you're not a bird."
The gun was still leveled. "Then what are you?"

"I could tell," said the bird. It had stopped hopping and was watching
him calmly. It was red, but sometimes blue. The colors wouldn't remain
fixed.

He lowered the gun in defeat. He couldn't kill a harmless creature
just for the sake of killing. It hadn't been responsible for this.

"Don't be so sure, Richel Alsint. Don't be so sure." The bird burst
into a wild trilling song.

He glared at it speechlessly. Bird it wasn't. Either it could read
his thoughts or it had been taught a patter that fitted his present
situation with remarkable precision.

"What do you think?" said the bird, cocking its head.

He forgot about the bird. It was only a momentary diversion. "I've been
marooned," he said dully.

"It's happened before. It will happen again," chirruped the bird.
"Don't worry, I'm here."

It was, but he wished it would go away.

"There is a note. Why don't you read, read, read?" sang the bird.

He looked, catching a glimpse of sunlight on metal. They had left
something. He ran over to it, a few hundred yards away.

And there was a note. He seized it feverishly.

    _I made them leave this. You may not need it, but you deserve to
    know the answers._

    _Don't you understand? You were infuriating everyone, even me,
    and I liked you better than anyone on the ship. You were always
    changing things for the sake of that damn plant! It was too dry,
    so we had to have more humidity than we liked. Or the pilot had
    to keep the drive from vibrating. Or this, or that, on and on
    and on! Who cares, really?_

    _A good plant mechanic ought to keep the plant alive for five
    months and then let it die. We can live the last month off the
    remains. We have to go back every six months for supplies anyway.
    It's expensive, I know, but until you can get a plant that reacts
    as we do, it will just have to die and be replaced._

    _I thought of staying with you, but I couldn't stand all those
    changes--rain and sun--all the things an uncontrolled planet has.
    And then there was that story of the bird. That was too much!_

    _Don't think too badly of me. At least I kept them from killing
    you._

       *       *       *       *       *

There was no signature, but there was no doubt who had written it.

"All of them," he muttered. Not just one man. Everyone, from the
captain down. Larienne too. And they were safe. Who would bother to
look for him when the captain recorded in the log that Richel Alsint
had deserted because his plant was a failure? And, of course, it was
going to fail.

"The crew of the craft was daft, and you were the only one who was
sane?" said the bird. "Don't you believe it. There are people on
countless planets just like them."

It was true. The crew was part of the civilization. On those planets
where it was possible to have parks, no one went to them. They
stayed in the cities as the crew stayed in the ship. And on other
planets--roofed over against poisonous gases, and inhabitants who never
saw the sun--those planets were not much better than spaceships. He was
the one who was different, not they. They had a mechanical culture and
they liked it.

He could see how he had irritated the crew in ways he didn't suspect.
They had wanted to get rid of him and they had.

He looked down at the machine they had left him, robbed, at Larienne's
insistence, from the major plant. Small, just large enough to supply
one man, but containing all the necessary parts. A plant machine in
miniature.

She really hadn't understood. He _could_ live on the food this
provided. But _would_ he, on a world teeming with animals and covered
with plants, _real_ plants? He laughed bitterly.

"Now you know," said the bird. "In the past there were others
marooned. Just like you. I came from them."

He looked up wonderingly. "Here? On this planet?" he asked eagerly.

A brilliant butterfly wandered past. The bird eyed it longingly and
shivered into a rainbow of colors and darted away after it.

"Come back!" Alsint shouted. He couldn't find them unaided. He had to
have directions.

The bird didn't return immediately. It played with the butterfly,
flashing around it. Presently it tired of the sport and came back
to the branch it had perched on. "Pretty bit of fluff," it said
breathlessly.

"Never mind that," said Alsint impatiently. "What about those people?
Are they on this world?"

"Oh, not here," said the bird. "A thousand planets away."

Alsint groaned. The bird had been trained by a mad-man and was
alternately raising his hopes and crushing them.

"Not so," said the bird. "Here's history: a hundred and forty years
ago, a couple, plant mechanics, were marooned--for the same reason." It
flew from the perch and alighted on the plant machine, dipping its bill
in a collecting tray. "Good stuff," it said, clattering its beak.

       *       *       *       *       *

Alsint said nothing. It would tell him when it got ready, not before.

"The plant machine's fine," said the bird. "It's a plant that's been
taken apart. Can you put it back together?"

"No more than it is," said Alsint. "No one can."

"No one _you_ know," said the bird. "Here's more history: A hundred and
forty years ago, this couple learned how to put it together--and it
grew. A hundred and thirty years ago, they knew how to take an animal
apart and keep it alive. A hundred and twenty years ago, they put the
animal together and made it work in a new way."

The bird sidled along the branch. "What's the difference between plant
and animal?" it asked.

There were countless differences, on any level Alsint wanted to think
about. Cellular, organizational, whatever he named. But the bird had
something simple in mind.

"There are some plants which can move a little," Alsint said slowly.
"And there are some animals that hardly move at all. But the real
difference, if there is any, is motion."

"Right. You'll get along fine," said the bird. "A hundred and twenty
years ago, this couple--who by then had several children--put an animal
together in a new way and got--pure motion."

That was what had been puzzling him, and now he knew. "Teleports," he
said. "They can teleport."

"They can't," said the bird. "The mind's best for thinking--they say.
And they've kept theirs uncluttered." The bird cocked a glittering eye.
"I don't know about minds. I never had one."

If they couldn't teleport, how had the bird got here?

Alsint glanced at the bird. It wasn't perched on the plant machine and
the wings were folded. Six feet off the ground it hovered, and not a
breath of air stirring.

"Behind you," said the bird.

It didn't twitch a feather, but it was behind him now and he hadn't
seen it move.

"Teleports, yes," said the bird. "But they can't do it. We do it for
them."

The bird _had_ been outside the visionport of the spaceship. If it
could teleport itself, why not air too?

That was only part of it. The bird had followed him, but how had it
foreseen this end?

"Did you know this would happen?" he asked.

"Plant mechanics are always getting marooned," said the bird. "We've
gathered up quite a few. They work with the plant and a plant belongs
on a planet. The rhythm is different from that of a machine."

       *       *       *       *       *

He knew that. He could feel it, though he had never put it into words.
"Go tell them where I am," he said. "I can live until they send a ship."

"A ship?" said the bird. "So slow? They don't believe in waiting.
They've got all the beautiful planets that men don't want--just for
the asking, though they don't have to ask. They need the right kind of
people to live on them."

They didn't believe in waiting. A shadow fell across his face. Alsint
looked up. Something was dropping down from the sky. Not a ship--not
the conventional kind, anyway. It was the kind _they_ would use. On
planets on which all the food was grown naturally and no heavy elements
were needed, what would be transported? People.

Not moving a wing, it came down, first fast and then slow. It stood in
front of him, towering, a giant abstract figure of a woman with wings.
There was frost on it.

He went to it and it covered him with wings.

There was no sensation at all except cold, which lasted only a few
seconds. When he opened his eyes, the strange, beautiful ship was
dropping down on another planet, more pleasant than the last. Men and
women were coming out of the houses to meet him. One of them looked
something like Larienne.