"It has to be recognized that man is a social animal in the same sense, though in a different manner, that ants and bees are social creatures. For an ant city to prosper, there have to be natural laws to protect it against unfavorable actions on the part of its members. It is not enough to speak of instincts to prevent antisocial actions. There are mutations of instinct as well as of form, in ants as in other creatures. It is not enough even to speak of social pressure, which among ants would be an impulse to destroy deviant members of the community. There are natural laws to protect an ant city against the instinct-control which would destroy it, as well as against the abandonment of instincts or actions necessary to the ant city as a whole. There are, in short, natural laws and natural forces which protect societies against their own members. In human society . . ."
Probability and Human Conduct—Fitzgerald
The highways were, of course, superb. The car raced forward, and its communicator began to chatter as somebody in the undamaged part of the grid-control building announced hysterically that a stranger had killed men and gotten away in a car. It described its course. It commanded that he be headed off. It shrilly demanded that he be killed, killed, killed!
Another voice took over. This voice was curt and coldly furious. It snapped precise instructions.
And Calhoun found himself on a gracefully curving, rising road. It soared, and he was midway between towers when another car flashed toward him. He took his blaster in his left hand. In the split second during which the cars passed each other, he blasted it. There was a monstrous surge of smoke and flame as the stricken car's Duhanne cell shorted and vaporized half the metal of the car itself.
There came other voices. Somebody had sighted the explosion. The voice in the communicator roared for silence.
"You," he rasped. "If you got him, report yourself!"
"Chee-chee-chee!" chattered Murgatroyd excitedly.
But Calhoun did not report.
"He got one of us," raged the icy voice. "Get ahead of him and blast him!"
Calhoun's car went streaking down the far side of the traffic bridge. It rounded a curve on two wheels. It flashed between two gigantic empty buildings and came to a side road, and plunged into that, and came again to a division and took the left-hand turn, and next time took the right. But the muttering voices continued in the communicator. One of the invaders was ordered to the highest possible bridge from which he could watch all lower-level roadways. Others were to post themselves here and there—and to stay still! A group of four cars was coming out of the storage building. Blast any single car in motion. Blast it! And report, report, report!
"I suspect," said Calhoun to the agitated Murgatroyd beside him, "that this is what is known as military tactics. If they ring us in . . . There aren't but so many of them, though. The trick for us is to get out of the city. We need more choices for action. So—"
The communicator panted a report of his sighting from a cobweblike bridge at the highest point of the city. He was heading—
He changed his heading. He had so far seen but one of his pursuers' cars. Now he went racing along empty, curving highways, among untenanted towers and between balconied walls with blank-eyed windows gazing at him everywhere.
It was nightmarish because of the magnificence and the emptiness of the city all about him. He plunged along graceful highways, across delicately arched bridges, through crazy ramifications of its lesser traffic arteries—and he saw no motion anywhere. The wind whistled past the car windows, and the tires sang a high-pitched whine, and the sun shone down and small clouds floated tranquilly in the sky. There were no signs of life or danger anywhere on the splendid highways or in the beautiful buildings. Only voices muttered in the communicator of the car. He'd been seen here, flashing around a steeply banked curve. He'd swerved from a waiting ambush by pure chance. He'd—
He saw green to the left. He dived down a sloping ramp toward one of the smaller park areas of the city.
And as he came from between the stone guard rails of the road, the top of the car exploded over his head. He swerved and roared into dense shrubbery, jerked Murgatroyd free despite the tormal's clinging fast with all four paws and his tail, and dived into the underbrush. Somehow, instinctively, he clung to the vortex-gun.
He ran, with his free hand plucking solidified droplets of hot metal from his garments and his flesh. They hurt abominably. But the man who'd fired wouldn't believe he'd missed, followed as his blasting was by the instant wrecking of the car. That man would report success before he moved in to view the corpse of his supposed victim. But there'd be other cars coming. At the moment it was necessary for Calhoun to get elsewhere, fast.
He heard the rushing sound of arriving cars while he panted and sweated through the foliage of the park. He reached the far side and a road, and on beyond there was a low stone wall. He knew instantly what it was. Service highways ran in cuts, for the most part roofed over to hide them from sight, but now and again open to the sky for ventilation. He'd entered the city by one of them. Here was another. He swung himself over the wall and dropped. Murgatroyd recklessly and excitedly followed.
It was a long drop, and he staggered when he landed. He heard a soft rushing noise above. A car raced past. Instants later, another.
Limping, Calhoun ran to the nearest service gate. He entered and closed it. Scorched and aching, he climbed to the echoing upper stories of this building. Presently he looked out. His car had been wrecked in one of the smaller park areas of the city. Now there were other cars at two-hundred-yard intervals all about it. It was believed that he was in the brushwood somewhere. Besides the cars of the cordon, there were now twenty men on foot receiving orders from an authoritative figure in their midst.
They scattered. Twenty yards apart, they began to move across the park. Other men arrived and strengthened the cordon toward which he was supposed to be driven. A fly could not have escaped.
Those who marched across the park began methodically to burn it to ashes before them with their blasters.
Calhoun watched. Then he remembered something and was appalled. Two days before while he was among the fugitives in the glade, Kim Walpole had asked hungrily if they whose lives he had saved could not do something to help him. And he'd said that if they saw the smoke of a good-sized fire in the city they might investigate. He'd had not the faintest intention of calling on them. But they might see this cloud of smoke and believe he wanted them to come and help!
"Damn!" he said wryly to Murgatroyd. "After all, there's a limit to any one series of actions with probable favorable chance consequences. I'd better start a new one. We might have whittled the invaders down and made the rest run away, but I had to start using a car! And that led to the chance making of a fire! So now we start all over with a new policy."
He explored the building quickly. He prepared his measures. He went back to the window from which he'd looked. He cracked it open.
He opened fire with his blaster. The range was long, but with the beam cut down to minimum spread he'd knocked over a satisfying number of the men below before they swarmed toward the building, sending before them a barrage of blaster-fire that shattered the windows and had the stone façade smoking furiously.
"This," said Calhoun, "is an occasion where we have to change their advantage in numbers and weapons into an unfavorable circumstance for them. They'll be brave because they're many. Let's go!"
He met four ground-car loads of refugees with his arms in the air. He did not want to be shot down by mistaken. He said hurriedly, when Kim and the other lean survivors gathered about him, "Everything's all right. We've a pack of prisoners but we won't bother to feed them intravenously for the moment. How'd you get the ground-cars?"
"Hunters," said Kim savagely. "We found them and killed them and took their cars. We found some other refugees, too, and I cured them—at least they will be cured soon. When we saw the smoke, we started for the city. Some of us still have the plague, but we've all had our serum shots. And half of us have arms now."
"All of us have arms," said Calhoun, "and to spare. The invaders are quite peacefully sleeping—just about all of them. I did knock over a few with long-range blaster-shots, and they won't wake up. Most of them, though, tried to storm a building from which I'd fired on them. I stood them off a fair length of time, and then ducked after dumping dextrethyl in the air-conditioning system. Murgatroyd and I waited a suitable time and then lengthened their slumber period with polysulphate. I doubt there'll be any more trouble with the butchers. But we've got to get to the spaceship they landed in. I fixed it so it couldn't possibly take off, but there are some calls coming in from space. The only working spacephone here is in the ship. The first load of immunized, enthusiastic colonists are in orbit now, giving the gang aground a little more time to answer. I want you people to talk to them."
"We'll bring their ship down," said the broad-bearded man hungrily, "and blast them as they come out of the port!"
Calhoun shook his head.
"To the contrary," he said mildly. "You'll put on the clothes of some of our prisoners, and you'll let yourselves be seen by the joyous newcomers in their spacephone screen. You'll pretend to be the characters we really have safely sleeping, and you'll say that the plague worked much too well. You'll say it wiped out the original inhabitants—that's you—and then changed into a dozen other plagues and wiped out all the little butcher-boys who came to mop up. You'll give details of the other kinds of plague that the real plague turned into. You'll be pathetic. You'll beg them to land and pick up you four or five dying, multiply diseased, highly contagious survivors. You'll tell them the plague has mutated until even the native animals are dying of it. Flying things fall dead from the air. Chirping things in the trees and grass are wiped out. You'll picture Maris III as a world on which no animal life can hope ever to live again—and you'll beg them to come down and pick you up and take you home with them."
The broad-bearded man stared. Then he said, "But they won't land."
"No," agreed Calhoun. "They won't. They'll go home. Unless the government has them all killed before they can talk, they'll tell their world what happened. They'll be half-dead with fear that the immunizing shots they received will mutate and turn them into the kind of plague victims you'll make yourself look like. And just what do you think will happen on the world they came from?"
Kim said hungrily, "They'll kill their rulers. They'll try to do it before they die of the plagues they'll imagine. They'll revolt! If a man has a belly-ache he'll go crazy with terror and try to kill a government official because his government has murdered him!"
Kim drew a deep breath. He smiled with no amusement at all.
"I like that," he said with a sort of deadly calm. "I like that very much."
"After all," observed Calhoun, "once an empire had been started, with the subjugated populations kept subdued by a threat of plague, how long would it be before the original population was enslaved by the same threat? Go and invent some interesting plagues and make yourselves look terrifying. Heaven knows you're lean enough! But you can make yourselves look worse. I said, once, that a medical man sometimes has to use psychology in addition to the regular measures against plague. The Med Service will check on that planet presently, but I think its ambition to be a health hazard to the rest of the galaxy will be ended."
"Yes," said Kim. He moved away. Then he stopped. "What about your prisoners? They're knocked out now. What about them?"
Calhoun shrugged.
"Oh, we'll let them sleep until we finish repairing the landing grid. I think I can be helpful with that."
"Every one of them is a murderer," growled the broad-bearded man.
"True," agreed Calhoun. "But lynching is bad business. It even offers the possibility of unfavorable chance consequences. Let's take care of the shipload of colonists first."
So they did. It was odd how they could take a sort of pleasure in the enactment of imagined disaster even greater than they had suffered. Their eyes gleamed happily as they went about their task.
The passenger ship went away. It did not have a pleasant journey. When it landed, its passengers burst tumultuously out of the spaceport to tell their story. Their home world went into a panic which was the more uncontrollable because the people had been very carefully told how deadly the tamed plagues would be to the inhabitants of worlds that they might want to take over. But now they believed the tamed plagues had turned upon them.
The deaths, especially among members of the ruling class, were approximately equal in number to those a deadly pandemic would have caused.
But back on Maris III things moved smoothly. Rather more than eighty people, altogether, were found and treated and ultimately helped with the matter of the slumbering invaders. That was almost a labor of love. Certainly it gave great satisfaction. The landing grid was back in operation two days after the passenger ship left. They took the landed spaceship and smashed its drive and communicators, and they wrecked its Duhanne cells. They took out the breech-plugs of the rockets and dumped the rocket fuel, saving just enough for the little Med Ship. Naturally, they removed the lifeboats.
And then they revived the unconscious butcher-invaders and put them, one by one, into the spacecraft in which they had come. That craft was now a hulk. It could not drive or use rockets or even signal. Its vision screens were blind; the Med Ship used some of them.
And then they used the landing grid—Calhoun checking the figures—and they put their prisoners up in orbit to await the arrival of proper authority. They could feed themselves, but any attempt at escape would be pure and simple suicide. They could not attempt to escape.
"And now," said Calhoun, when the planet was clean of strangers again, "now I'll bring my ship to the grid. We'll recharge my Duhanne cells and replace my vision screens. I can make it here on rockets, but it's a long way to headquarters. So I'll report, and a field team will come here and check out the planet, artificial plagues included. They'll arrange, somehow, to take care of the prisoners up in orbit. That's not my affair. Maybe Dettra Two would like to have them. In the meantime, they can search their consciences."
Kim said, frowning, "You put something over on us! You kept us so busy we forgot one man. You said there'd be a microbiologist in the invaders' party. You said he'd probably be the man who had invented the plague. And he's up there in orbit with the rest—he'll get no more than they get! You put something over on us. He deserves some special treatment!"
Calhoun said very evenly, "Revenge is always apt to have unfavorable chance consequences. Let him alone. You've no right to punish him. You've only a right to punish a child to correct it, or to punish a man to deter others from doing what he's done. Do you expect to correct the kind of man who'd invent the plague that flourished here, and meant to use it for the making of an empire of slaves? Do you think others need to be deterred from trying the same thing?"
Kim said thickly, "But he's a murderer! All the murders were his! He deserves—"
"Condign punishment?" asked Calhoun sharply. "You've no right to administer it. Anyhow, think what he's up against!"
"He's—he's . . ." Kim's face changed. "He's up there in orbit, hopeless, with his butchers all around him and blaming him for the fix they're in. They've nothing to do but hate him. Nothing . . ."
"You didn't arrange that situation," said Calhoun coldly. "He did. You simply put prisoners in a safe place because it would be impractical to guard them, otherwise. I suggest you forget him."
Kim looked sickish. He shook his head to clear it. He tried to thrust the man who'd planned pure horror out of his mind. He said slowly, "I wish we could do something for you."
"Put up a statue," said Calhoun dryly, "and in twenty years nobody will know what it was for. You and Helen are going to be married, aren't you?" When Kim nodded, Calhoun said, "In course of time, if you remember and think it worthwhile, you may inflict a child with my name. That child will wonder why, and ask, and so my memory will be kept green for a full generation."
"Longer than that," insisted Kim. "You'll never be forgotten here!"
Calhoun grinned at him.
Three days later, which was six days longer than he'd expected to be aground on Maris III, the landing grid heaved the little Med Ship out to space. The beautiful, nearly empty city dwindled as the grid field took the tiny spacecraft out to five planetary diameters and there released it. And Calhoun spun the Med Ship about and oriented it carefully for that place in the Cetis cluster where Med Service Headquarters was. He threw the overdrive switch.
The universe reeled. Calhoun's stomach seemed to turn over twice, and he had a sickish feeling of spiraling dizzily in what was somehow a cone. He swallowed. Murgatroyd made gulping noises. There was no longer a universe perceptible about the ship. There was dead silence. Then those small random noises began which have to be provided if a man is not to crack up in the dead stillness of a ship traveling at thirty times the speed of light.
Then there was nothing more to do. In overdrive travel there is never anything to do but pass the time away.
Murgatroyd took his right-hand whiskers in his right paw and licked them elaborately. He did the same to his left-hand whiskers. He contemplated the cabin, deciding upon a soft place in which to go to sleep.
"Murgatroyd," said Calhoun severely, "I have to have an argument with you. You imitate us humans too much! Kim Walpole caught you prowling around with an injector, starting to give our prisoners another shot of polysulfate. It might have killed them! Personally, I think it would have been a good idea, but in a medical man it would have been most unethical. We professional men have to curb our impulses! Understand?"
"Chee!" said Murgatroyd. He curled up and wrapped his tail meticulously about his nose, preparing to doze.
Calhoun settled himself comfortably in his bunk. He picked up a book. It was Fitzgerald on Probability and Human Conduct.
He began to read as the ship went on through emptiness.