Murgatroyd whimpered again and said, "_Chee-chee!_"

"What's going on?" demanded Allison with the impatience of a very

important man indeed. "If the beast's sick, he's sick! I've got to

find--"

Calhoun opened his med kit and went carefully through it until he found

what he needed. He put a pill into Murgatroyd's mouth.

"Swallow it!" he commanded.

Murgatroyd resisted, but the pill went down. Calhoun watched him

sharply. Murgatroyd's digestive system was delicate, but it was

dependable. Anything that might be poisonous, Murgatroyd's stomach

rejected instantly and emphatically.

The pill stayed down.

"Look!" said Allison indignantly. "I've got business to do! In this

attache case I have millions of interstellar credits, in cash, to pay

down on purchases of land and factories. I ought to make some damned

good deals! And I figure that that's as important as anything else you

can think of! It's a damned sight more important than a beast with a

belly-ache!"

Calhoun looked at him coldly.

"Do you own land on Texia?" he asked.

Allison's mouth dropped open. Extreme suspicion and unease appeared

on his face. As a sign of the unease, his hand went to the side coat

pocket in which he'd put a blaster. He didn't pluck it out. Calhoun's

left fist swung around and landed. He took Allison's elaborate pocket

blaster and threw it away among the monotonous rows of olive-green

plants. He returned to absorbed observation of Murgatroyd.

In five minutes the muscular spasms diminished. In ten, Murgatroyd

frisked. But he seemed to think that Calhoun had done something

remarkable. In the warmest of tones he said:

"_Chee!_"

"Very good," said Calhoun. "We'll go ahead. I suspect you'll do as well

as we do--for a while."

The car lifted the few inches the air columns sustained it above the

ground. It went on, still to the eastward. But Calhoun drove more

slowly now.

"Something was giving Murgatroyd rhythmic muscular spasms," he said

coldly. "I gave him medication to stop them. He's more sensitive than

we are, so he reacted to a stimulus we haven't noticed yet. But I

think we'll notice it presently."

Allison seemed to be dazed at the affront given him. It appeared to be

unthinkable that anybody might lay hands on him.

"What the devil has that to do with me?" he demanded angrily. "And what

did you hit me for? You're going to pay for this!"

"Until I do," Calhoun told him, "you'll be quiet. And it does have the

devil to do with you. There was a Med Service gadget once--a tricky

little device to produce contraction of chosen muscles. It was useful

for re-starting stopped hearts without the need of an operation.

It regulated the beat of hearts that were too slow or dangerously

irregular. But some businessman had a bright idea and got a tame

researcher to link that gadget to ground induction currents. I suspect

you know that businessman!"

"I don't know what you're talking about," snapped Allison. But he was

singularly tense.

"I do," said Calhoun unpleasantly. "I made a public health inspection

on Texia a couple of years ago. The whole planet is a single, gigantic,

cattle-raising enterprise. They don't use metal fences--the herds are

too big to be stopped by such things. They don't use cowboys--they cost

money. On Texia they use ground-induction and the Med Service gadget

linked together to serve as cattle fences. They act like fences, though

they're projected through the ground. Cattle become uncomfortable when

they try to cross them. So they draw back. So men control them. They

move them from place to place by changing the cattle fences, which

are currents induced in the ground. The cattle have to keep moving

or be punished by the moving fence. They're even driven into the

slaughterhouse chutes by ground-induction fields! That's the trick

on Texia, where induction fields herd cattle. I think it's the trick

on Maya, where people are herded like cattle and driven out of their

cities so the value of their fields and factories will drop,--so a land

buyer can find bargains!"

"You're insane!" snapped Allison. "I just landed on this planet! You

saw me land! I don't know what happened before I got here! How could I?"

"You might have arranged it," said Calhoun.

* * * * *

Allison assumed an air of offended and superior dignity. Calhoun drove

the car onward at very much less than the head-long pace he'd been

keeping to. Presently he looked down at his hands on the steering

wheel. Now and then the tendons to his fingers seemed to twitch. At

rhythmic intervals, the skin crawled on the back of his hands. He

glanced at Allison. Allison's hands were tightly clenched.

"There's a ground-induction fence in action, all right," said Calhoun

calmly. "You notice? It's a cattle fence and we're running into it. If

we were cattle, now, we'd turn around and move away."

"I don't know what you're talking about!" said Allison.

But his hands stayed clenched. Calhoun slowed the car still more. He

began to feel, all over his body, that every muscle tended to twitch at

the same time. It was a horrible sensation. His heart muscles tended

to contract too, simultaneously with the rest, but one's heart has its

own beat rate. Sometimes the normal beat coincided with the twitch.

Then his heart pounded violently--so violently that it was painful. But

equally often the imposed contraction of the heart muscles came just

after a normal contraction, and then it stayed tightly knotted for half

a second. It missed a beat, and the feeling was agony.

No animal would have pressed forward in the face of such sensations. It

would have turned back long ago. No animal. Not even Man.

Calhoun stopped the car. He looked at Murgatroyd. Murgatroyd was

completely himself. He looked inquiringly at Calhoun. Calhoun nodded to

him, but he spoke--with some difficulty--to Allison.

"We'll see--if this thing--builds up. You know that it's the

Texia--trick. A ground-induction unit set up--here. It drove

people--like cattle. Now we've--run into it.--It's holding people--like

cattle."

He panted. His chest muscles contracted with the rest, so that his

breathing was interfered with. But Murgatroyd, who'd been made uneasy

and uncomfortable before Calhoun noticed anything wrong, was now

bright and frisky. Medication had desensitized his muscles to outside

stimuli. He would be able to take a considerable electric shock without

responding to it.

But he could be killed by one that was strong enough.

A savage anger filled Calhoun. Everything fitted together. Allison

had put his hand convenient to his blaster when Calhoun mentioned

Texia. It meant that Calhoun suspected what Allison knew to be true.

A cattle-fence unit had been set up on Maya, and it was holding--like

cattle--the people it had previously driven--like cattle. Calhoun

could deduce with some precision exactly what had been done. The first

experience of Maya with the cattle fence would have been very mild.

It would have been low-power, causing just enough uneasiness to be

noticed. It would have moved from west to east, slowly, and it would

have reached a certain spot and there faded out. And it would have been

a mystery and an uncomfortable thing, and nobody would understand it

on Maya. In a week it would almost be forgotten. But then there'd come

a stronger disturbance. And it would travel like the first one; down

the length of the peninsula on which the colony lay, but stopping at

the same spot as before, and then fading away to nothingness. And this

also would have seemed mysterious. But nobody would suspect humans of

causing it. There would be theorizing and much questioning, but it

would be considered an unfamiliar natural event.

Probably the third use of the cattle fence would be most disturbing.

This time it would be acutely painful. But it would move into the

cities and through them and past them, and it would go down the

peninsula to where it had stopped and faded on two previous occasions.

The people of Maya would be disturbed and scared. But they considered

that they knew it began to the westward of Maya City, and moved toward

the east at such-and-such a speed, and it went so far and no farther.

And they would organize themselves to apply this carefully worked out

information.

It would not occur to any of them that they had learned how to be

driven like cattle.

* * * * *

Calhoun, of course, could only reason that this must have happened. But

nothing else could have taken place. Perhaps there were more than three

uses of the moving cattle fence to get the people prepared to move past

the known place at which it always faded to nothingness. They might

have been days apart, or weeks apart, or months. There might have been

stronger manifestations followed by weaker ones and then stronger ones

again.

But there was an inductive cattle fence across the highway here.

Calhoun had driven into it. Every two seconds the muscles of his

body tensed. Sometimes his heart missed a beat at the time that his

breathing stopped, and sometimes it pounded violently. It seemed that

the symptoms became more and more unbearable.

He got out his med kit, with hands that spasmodically jerked

uncontrollably. He fumbled out the same medication he'd given

Murgatroyd. He took two of the pellets.

"In reason," he said coldly, "I ought to let you take what this damned

thing would give you. But--here!"

Allison had panicked. The _idea_ of a cattle fence suggested

discomfort, of course, but it did not imply danger. The _experience_

of a cattle fence, designed for huge hoofed beasts instead of men,

was terrifying. Allison gasped. He made convulsive movements. Calhoun

himself moved erratically. For one and a half seconds out of two, he

could control his muscles. For half a second at a time, he could not.

But he poked a pill into Allison's mouth.

"Swallow it!" he commanded. "Swallow!"

The ground-car rested tranquilly on the highway, which here went on for

a mile and then dipped in a gentle incline and then rose once more.

The totally level fields to right and left came to an end here. Native

trees grew, trailing preposterously with long fronds. Brushwood hid

much of the ground. That looked normal. But the lower, ground-covering

vegetation was wilted and rotting.

Allison choked upon the pellet. Calhoun forced a second upon him.

Murgatroyd looked inquisitively at first one and then the other of the

two men. He said:

"_Chee? Chee?_"

Calhoun lay back in his seat, breathing carefully to keep alive. But

he couldn't do anything about his heartbeat. The sun shone brightly,

though now it was low, toward the horizon. There were clouds in the

reddened sky. A gentle breeze blew. Everything, to outward appearance,

was peaceful and tranquil and commonplace upon this small world.

But in the area that human beings had taken over there

were cities which were still and silent and deserted, and

somewhere--somewhere!--the population of the planet waited uneasily for

the latest of a series of increasingly terrifying phenomena to come to

an end. Up to this time the strange, creeping, universal affliction had

begun at one place, and moved slowly to another, and then diminished

and ceased to be. But this was the greatest and worst of the torments.

And it hadn't ended. It hadn't diminished. After three days it

continued at full strength at the place where previously it had stopped

and died away.

The people of Maya were frightened. They couldn't return to their

homes. They couldn't go anywhere. They hadn't prepared for an emergency

to last for days. They hadn't brought supplies of food.

It began to look as if they were going to starve.

Med Ship Man · 第 8 / 9 题