He was working the combination lock door when something hopped, low-down and near him. He jumped, and Murgatroyd said, "Chee?" Then Calhoun realized what had startled him. He finished the unlocking of the port. He went in and closed the port behind him. The air inside seemed curiously dead, after so long a time outside. He flipped on the outside microphones and heard tiny patterings. He heard mildly resentful cooings. He grinned.
When morning came, the people of One City would find their pasture land inhabited by small snowshoe rabbits and small and bush-tailed squirrels and fluttering pigeons. They would react as Two City and Three City had already done—with panic. The panic would inevitably call up the notion of the most feared thing in their lives. Sickness. The most feared thing is always a rare thing, of course. One cannot fear a frequent thing, because one either dies of it or comes to take it for granted. Fear is always of the rare or nonexistent. One City would be filled with fear of sickness.
Sickness would come. Hunt would call them, presently, on a walkie-talkie communicator. He would express deep concern because—so he'd say—new domestic animals intended for Two City had been dumped on One City pasture land. He'd add that they were highly infective, and One City was already inescapably doomed to an epidemic which would begin with severe headaches, and would continue with cramps and extreme nervous agitation. He would say that Calhoun had left medicines at Two City with which that sickness and all others could be cured, and if the sickness described should appear in One City—why—its victims would be cured if they traveled to Two City.
The sickness would appear. Inevitably. There was no longer sickness in the three communities. Arctic colonies, never visited by people from reservoirs of infection, become magnificently healthy by the operation of purely natural causes, but an isolation syndrome . . .
The people of One City would presently travel, groaning, to Two City. Their suffering would be real. They would dread the breaking of their isolation. But they'd dread sickness—even sickness they only imagined—still more. When they reached Two City they would find themselves tended by Three City members, and they would be appalled and terrified. But mock medication by Hunt and Pat—and Nym for the women—would reassure them. A Crusoe condition requires heroic treatment. This was it.
Calhoun cheerfully checked over the equipment of the Med Ship. He'd have to take off on emergency rockets. He'd have to be very, very careful in setting a course back to headquarters to report before starting out again for Merida II. He didn't want to make any mistake . . . Suddenly, he began to chuckle.
"Murgatroyd," he said amiably, "it's just occurred to me that the mistakes we make, that we struggle to hard to avoid, are part of the scheme of things."
"Chee?" said Murgatroyd inquiringly.
"The Company that settled this planet," said Calhoun, grinning, "set up that ribbon out in space as a splendidly conservative investment to save money in freight charges. It was a mistake, because it ruined their mining business and they had to write the whole colony off. They made another mistake by not reporting to Med Service, because now they've abandoned the colony and would have to get a license to reoccupy, which they'd never be granted against the population already here. Somebody made a mistake that brought us here, and One City made a mistake by not accepting us as guests, and Two City made a mistake by sending Nym on sentry duty, and Three City made a mistake . . ."
Murgatroyd yawned.
"You," said Calhoun severely, "make a mistake in not paying attention!" He strapped himself in. He stabbed an emergency rocket control-button. The little ship shot heavenward on a pencil-thin stream of fire. Below him, people of One City would come pouring out of underground to learn what had happened, and they'd find the pasture swarming with friendly squirrels and inquisitive rabbits and cooing pigeons. They'd be scared to death. Calhoun laughed. "I'll spend part of the time in overdrive making a report on it. Since an isolation syndrome is mostly psychological, and a Crusoe condition is wholly so, I managed sound medical treatment by purely psychological means! I'll have fun with that!"
It was a mistake. He got back to headquarters, all right, but when his report was read they made him expand it into a book, with footnotes, an index, and a bibliography.
TALLIEN THREE
I
The Med Ship Aesclipus Twenty rode in overdrive while her ship's company drank coffee. Calhoun sipped at a full cup of strong brew, while Murgatroyd the tormal drank from the tiny mug suited to his small, furry paws. The astrogation-unit showed the percentage of this overdrive-hop covered up to now, and the needle was almost around to the stop-pin.
There'd been a warning gong an hour ago, notifying that the end of overdrive journeying approached. Hence the coffee. When breakout came, the overdrive field should collapse and the Duhanne cells down near the small ship's keel absorb the energy which maintained it. Then Aesclipus Twenty would appear in the normal universe of suns and stars with the abruptness of an explosion. She should be somewhere near the sun Tallien. She should then swim toward that Sol-type sun and approach Tallien's third planet out at the less-than-light-speed rate necessary for solar-system travel. And presently she would signal down to ground and Calhoun set about the purpose of his three-week journey in overdrive. His purpose was a routine check-up on public health on Tallien Three. Calhoun had lately completed five such planetary visits, with from one to three weeks of overdrive travel between each pair. When he left Tallien Three he'd head back to Sector Headquarters for more orders about the work of the Interstellar Medical Service.
Murgatroyd zestfully licked his empty cup to get the last least drop of coffee. He said hopefully:
"Chee?" He wanted more.
"I'm afraid," said Calhoun, "that you're a sybarite, Murgatroyd. This impassioned desire of yours for coffee disturbs me."
"Chee!" said Murgatroyd, with decision.
"It's become a habit," Calhoun told him severely. "You should taper off. Remember, when anything in your environment becomes a normal part of your environment, it becomes a necessity. Coffee should be a luxury, to be savored as such, instead of something you expect and resent being deprived of."
Murgatroyd said impatiently:
"Chee-chee!"
"All right, then," said Calhoun, "if you're going to be emotional about it! Pass your cup."
He reached out and Murgatroyd put the tiny object in his hand. He refilled it and passed it back.
"But watch yourself," he advised. "We're landing on Tallien Three. It's just been transferred to us from another sector. It's been neglected. There's been no Med Service inspection for years. There could be misunderstandings."
Murgatroyd said, "Chee!" and squatted down to drink.
Calhoun looked at a clock and opened his mouth to speak again, when a taped voice said abruptly:
"When the gong sounds, breakout will be five seconds off."
There was a steady, monotonous tick, tock, tick, tock, like a metronome. Calhoun got up and made a casual examination of the ship's instruments. He turned on the vision-screens. They were useless in overdrive, of course. Now they were ready to inform him about the normal cosmos as soon as the ship returned to it. He put away the coffee things. Murgatroyd was reluctant to give up his mug until the last possible lick. Then he sat back and elaborately cleaned his whiskers.