<h2><SPAN name="XII" id="XII"></SPAN>XII</h2>
<h3>War</h3>
<p>Sometimes it seemed to Doc that war was nothing
but an endurance race to see how many times they
could run before they were bombed. He was just beginning
to drop off to sleep after a long trip for the
sixth consecutive day when the little alarm shrilled. He
sighed and shook Chris awake.</p>
<p>"Again?" she protested. But she got up and began
helping him pack.</p>
<p>Jake came in, his eyes weary, pulling on the old
jacket with the big star on its sleeve. Doc hadn't been
too surprised to learn that Jake was the actual leader of
the rebels. "Shuttles spotted taking off this way. And I
still can't find where the leak is. They haven't missed
our location once this week. Here, give me that."</p>
<p>He took the electron mike that had been among Doc's'
possessions, but Chris recaptured it. "I can manage,"
she told him, and headed out for the tractor where Lou
was waiting.</p>
<p>Doc scowled after her. He and Jake had been watching
her. She was too useful to Doc's research to be
turned away, but they didn't trust her yet. So far, however,
they had found nothing wrong with her conduct.
Still....</p>
<p>He swung suddenly into Jake's tractor. "Just remembered
something. How'd they find me that time I
stopped in the tractor to use the mike? I was pretty<span class="pagenum"><SPAN name="Page_90" id="Page_90"></SPAN></span>
well hidden, and no tracks last in the sand long enough
for them to have followed. But they were there when
I came to. Somehow, they must have put a radio tracer
on me."</p>
<p>Jake waited while they lighted up, his eyes suddenly
bright. "You mean something you got from her house
was bugged? It figures."</p>
<p>"And I've still got all the stuff. Now they find wherever
we set up headquarters, though they've always
managed to miss my laboratory, even when they've hit
the troops around us. Jake, I think it's the microscope."
Doc managed to push enough junk off one of the seats
to make a cramped bed, and stretched out. "Sure, we
figured they sent her because they want to keep tabs
on what I discover. They've finally gotten scared of the
plague, and she's the perfect Judas goat. But they have
to have some way to get in touch with her. I'll bet
there's a tracer in the mike and a switch so she can
modulate it or key it to send out Morse."</p>
<p>"Yeah," Jake nodded. "Well, she does her own dirty
work. I might get to like her if she was on our side.
Okay, Doc. If they've put things into the mike, I've got
a boy who'll find and fix it so she won't guess it's been
touched."</p>
<p>Doc relaxed. For the moment, there would be no
power in the instrument, nor any excuse for her to use
it. But she must have handled some secret arrangement
during the work periods. She used the mike more than
he did. The switch could be camouflaged easily enough.
If anyone detected the signal, they'd probably only
think it was some leak in the electrical circuit.</p>
<p>Far away, the shuttle rockets had appeared as tiny
dots in the sky. They were standing on their tails a second
later, just off the ground, letting the full force of<span class="pagenum"><SPAN name="Page_91" id="Page_91"></SPAN></span>
their blasts bake the area where headquarters had been.</p>
<p>Jake watched grimly, driving by something close to
instinct. Then he looked back. "Know anything about
a Dr. Harkness?"</p>
<p>"Not much, except that he protested sealing off the
villages. Why?"</p>
<p>"He and five other doctors were picked up, trying to
get through to us. Claimed they wanted to give us medical
help. We can use them, God knows. I guess I'll
have to chance it."</p>
<p>They stopped at a halfway village and hid the tractors
before looking for a place to rest. Doc found Chris
curled up asleep against the microscope. He had a hard
time getting her to leave it in the tractor, but she was
too genuinely tired to put up any real argument.</p>
<p>Jake reported in the morning before they set out
again. "You were right, Doc. It was a nice job of work.
Must have taken the best guys in Southport to hide the
circuit so well. But it's safe now. It just makes a kind
of meaningless static nobody can trace. Maybe we can
get you a permanent lab now."</p>
<p>Doc debated again having Chris left behind and decided
against it. The Lobby was determined to let him
find a cure for them if he could. That meant Chris
would work herself to exhaustion trying to help. Let
her think she was doing it for the Lobby! It was time
she was on the receiving end of a double cross.</p>
<p>"It's a stinking way to run a war," he decided.</p>
<p>Jake chuckled without much humor. "It's the war
you wanted, remember? They forced our hand, but it
had to come sometime. Right now the Lobby's fighting
to get their hands on your work before we can use it;
they're just using holding tactics, which helps our side.
And we're hoping you get the cure so we can win.<span class="pagenum"><SPAN name="Page_92" id="Page_92"></SPAN></span>
With that, maybe we'll whip them."</p>
<p>It was a crazy war, with each side killing more of its
own men than of the enemy. The runners were increasing,
and Jake's army was learning to shoot the poor
devils mercifully and go on. They knew, at least, that
there was no current danger of infection. In the Lobby
towns, more were dying of panic in their efforts to escape
the runners.</p>
<p>Desert towns had joined the villages, reluctantly but
inevitably, to give the rebels nearly three-quarters of
the total population. But the Lobby forces and the few
cities held most of the real fighting equipment and they
were ready to wait until Earth could send out unmanned
rockets, loaded with atomics, which could cut
through space at ten times normal speed.</p>
<p>There were vague lines of battle, but time was the
vital factor. The Lobbies waited to steal a cure for the
plague and the villages waited until they could announce
it and demand surrender as its price.</p>
<p>It looked as if both sides were doomed to disappointment,
however. He and Chris had put in every spare
minute between moving and the minimum of sleep in
searching for something that would check the disease.
It couldn't grow in an Earth-normal body, but it didn't
die, either. And there wasn't enough normal food available
to permit the switch-over for more than a handful
of people. Even Earth was out of luck, since eighty percent
of her population ate synthetics. There were ways
to synthesize Earth-normal food, but they were still
hopelessly inefficient.</p>
<p>Jake had ordered one of the villages to rebuild their
plant for such a purpose, while another was producing
the enzyme that would permit switching. But it looked
hopeless for more than a few of the most valuable men.<span class="pagenum"><SPAN name="Page_93" id="Page_93"></SPAN></span></p>
<p>"No progress?" Jake asked for the hundredth time.</p>
<p>Doc grinned wryly. "A lot, but no help. We've found
a fine accelerator for the bug. We can speed up its incubation
or even make someone already infected catch
it all over again. But we can't slow it down or stop it."</p>
<p>The new laboratory was still being fitted when they
arrived. It had been dug into one of the few real cliffs
in this section of Mars. The power plant had been installed,
complete with a steam plant that would operate
off sunlight in the daytime through a series of heat
valves that took in a lot of warm air and produced
smaller amounts hot enough to boil water.</p>
<p>"I'll see you whenever I can," Jake said. "But mostly,
you're going to be somewhat isolated so they won't
trace you. Let them think they goofed with the shuttles
and hit you and Chris. Anything you need?"</p>
<p>"Guinea pigs," Doc told him sarcastically. It was
meant as a joke, though a highly bitter one. Jake
nodded and left them.</p>
<p>Doc opened the cots as Chris came in, not bothering
to unpack the equipment. "Hit the sack, Chris," he told
her.</p>
<p>She looked at him doubtfully. "You almost said that
the way you'd address a human being, Dan. You're
slipping. One of these days you'll like me again."</p>
<p>"Maybe." He was too tired to argue. "I doubt it,
though. Forget it and get some sleep."</p>
<p>She watched him silently until he got up to turn out
the light. Then she sighed heavily. "Dan?"</p>
<p>"Yeah?"</p>
<p>"I never got a divorce. The publicity would have
been bad. But anyway, we're still married."</p>
<p>"That's nice." He swung to face her briefly. "And<span class="pagenum"><SPAN name="Page_94" id="Page_94"></SPAN></span>
they found the radio in the microscope. Better get to
sleep, Chris."</p>
<p>"Oh." It was a quiet exclamation, barely audible.
There was a sound that might have been a sniffle if it
had come from anyone else. Then she rolled over. "All
right, Dan. I still want to help you."</p>
<p>He cursed himself for a stupid fool for telling her.
Fatigue was ruining what judgment he had. From now
on, he'd have to watch her every minute. Or had she
really seen the value of the research by now? She
wasn't a fool. It should have registered on even her
stubborn mind. But he was too sleepy to think about it.</p>
<p>She had breakfast ready in the morning. She made
no comment on what had been said during the night.
Instead, she began discussing a way to keep one of the
organic antibiotics from splitting into simpler compounds
when they tried to switch it over to Mars-normal.
They were both hopelessly bad chemists and biologists,
but there was no one else to do the work.</p>
<p>Chris worked harder than ever during the day.</p>
<p>Just after sundown, Jake came in with a heavy box.
He dropped it onto the floor. "Mice!"</p>
<p>Doc ripped off the cover, exposing fine screening.
There were at least six dozen mice inside!</p>
<p>"Harkness found them," Jake explained. "A hormone
extraction plant used them for testing some of the products.
Had them sent by regular shipments from Earth.
Getting them cost a couple of men, but Harkness claims
it's worth it. He's a good man on a raid. Here!"</p>
<p>He'd gone to the doorway again and came back with
another box, this one crammed with bottles and boxes.
"They had quite a laboratory, and Harkness picked out
whatever he thought you could use."</p>
<p>Chris and Doc were going through it. The labels<span class="pagenum"><SPAN name="Page_95" id="Page_95"></SPAN></span>
were engineering ones, but the chemical formulae were
identification enough. There were dozens of chemicals
they hadn't hoped to get.</p>
<p>"Anything else?" Doc finally asked as they began
arranging the supplies.</p>
<p>"More runners. A lot more. We're still holding things
down, but it's reaching a limit. Panic will start in the
camps if this keeps on. But that's my worry. You stick
to yours."</p>
<p>Several of the new chemicals showed promise in the
tubes. But two of them proved fatal to the mice and
the others were completely innocuous in the little animal's
bodies, both to mouse and to germ. The plague
was much hardier in contact with living cells than in
the artificial environment of the culture jars.</p>
<p>They lost seven mice in two days, but that seemed
unimportant; the females were already living up to their
reputations, nearly all pregnant. Doc didn't know the
gestation period, but he remembered that it was short.</p>
<p>"Funny they all started at the same time," he commented.
"Must have been shipped out separately or
else been kept apart while they were switched over to
Mars-normal. Something interrupted their habits, anyhow."</p>
<p>A few nights later they learned what it was. There
was a horrible squealing that woke him out of the
depths of his sleep. Chris was already at the light
switch. As light came on, they turned to the mouse
box.</p>
<p>All the animals were charging about in their limited
space, their little legs driving madly and their mouths
open. What they lacked in size they made up in numbers,
and the din was terrific.</p>
<p>But it didn't last. One by one, the mice began drop<span class="pagenum"><SPAN name="Page_96" id="Page_96"></SPAN></span>ping
to the floor of the cage. In fifteen minutes, they
were all dead!</p>
<p>It was obviously the plague, contracted after having
their metabolism switched. Women were sterile for
some time after Selznik's migraine struck, and the same
must have been true of the mice. They must have contracted
the plague at about the same time and reached
fertility together. Somehow, the plague incubation period
had been shortened to fit their life span; the disease
was nothing if not adaptive.</p>
<p>Chris prepared a slide in dull silence. The familiar
cell was there when Doc looked through the microscope.
He picked up one of the little creatures and cut
it open, removing one of the foetuses.</p>
<p>"Make a film of that," he suggested.</p>
<p>She worked rapidly, scraping out the almost microscopic
brain, dissolving out the fatty substance, and
transferring the result to a film. This time, even at full
magnification, there was no sign of the filaments that
were always present in diseased flesh. The results were
the same for the other samples they made.</p>
<p>"Something about the very young animal or a secretion
from the mother's organs keeps the bug from
working." Doc reached for a bracky weed and accepted
a light from Chris without thinking of it. "Every kid
I've heard about contracted the plague between the second
and third year. None are born with it, none get it
earlier. I've suspected this, but now here's confirmation."</p>
<p>Chris began preparing specimens, while Doc got
busy with tubes of the culture. They'd have to test
various fluids from the tiny bodies, but there were
enough cultures prepared. Then, if the substance only
inhibited growth, there would be a long, slow test; if<span class="pagenum"><SPAN name="Page_97" id="Page_97"></SPAN></span>
it killed the bugs, they might know more quickly.</p>
<p>Jake came in before the final tests, but waited on
them. Doc was studying a film in the microscope. He
suddenly motioned excitedly for Chris.</p>
<p>"See the filaments? They're completely disintegrated.
And there's one of the big cells broken open. We've
got it! It's in the blood of the foetus. And it must be
in the blood of newborn children, too!"</p>
<p>Jake looked at the slide, but his face was doubtful.</p>
<p>"Maybe you've got something, Doc. I hope so. And
I hope you can use it." He shook his head wearily.
"We need good news right now. A couple of big rockets
just reached the station and they've been sending
shuttles back and forth a mile a minute. Nobody can
figure how they got here so fast or what they're for.
But it doesn't look good for us!"<span class="pagenum"><SPAN name="Page_98" id="Page_98"></SPAN></span></p>
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