Again from the storage space from which supplies had been removed, Calhoun produced vacuum suits. The first four students went out, each escorting a less-accustomed neophyte and all fastened firmly together with space ropes. They warmed the interiors of four ships and went on to others. Presently there were eight ships making ready for an interstellar journey, each with a scared but resolute new pilot familiarizing himself with its controls. There were sixteen ships. Twenty. Twenty-three.
A guard ship came humming out from Weald. It would be armed, of course. It came droning, droning up the forty-odd thousand miles from the planet. Calhoun swore. He could not call his students and tell them what was toward. The guard ship would overhear. He could not trust untried young men to act rationally if they were unaware and the guard ship arrived and matter-of-factly attempted to board one of them.
Then he was inspired. He called Murgatroyd, placed him before the communicator, and set it at voice-only transmission. This was familiar enough, to Murgatroyd. He'd often seen Calhoun use a communicator.
"Chee!" shrilled Murgatroyd. "Chee-chee!"
A startled voice came out of the speaker, "What's that?"
"Chee," said Murgatroyd zestfully.
The communicator was talking to him. Murgatroyd adored three things, in order. One was Calhoun. The second was coffee. The third was pretending to converse like a human being. The speaker said explosively, "You there, identify yourself!"
"Chee-chee-chee-chee!" observed Murgatroyd. He wriggled with pleasure and added, reasonably enough, "Chee!"
The communicator bawled, "Calling ground! Calling ground! Listen to this! Something that ain't human's talking at me on a communicator! Listen in an' tell me what to do!"
Murgatroyd interposed with another shrill, "Chee!"
Then Calhoun pulled the Med Ship slowly away from the clump of still-lifeless grain ships. It was highly improbable that the guard boat would carry an electron telescope. Most likely it would have only an echo-radar, and so could determine only that an object of some sort moved of its own accord in space. Calhoun let the Med Ship accelerate. That would be final evidence. The grain ships were between Weald and its sun. Even electron telescopes on the ground—and electron telescopes were ultimately optical telescopes with electronic amplification—could not get a good image of the ship through sunlit atmosphere.
"Chee?" asked Murgatroyd solicitously. "Chee-chee-chee?"
"Is it blueskins?" shakily demanded the voice from the guard boat. "Ground! Ground! Is it blueskins?"
A heavy, authoritative voice came in with much greater volume. "That's no human voice," it said harshly. "Approach its ship and send back an image. Don't fire first unless it heads for ground."
The guard ship swerved and headed for the Med Ship. It was still a very long way off.
"Chee-chee," said Murgatroyd encouragingly.
Calhoun changed the Med Ship's course. The guard ship changed course too. Calhoun let it draw nearer, but only a little. He led it away from the fleet of grain ships. He swung his electron telescope on them. He saw a space-suited figure outside one, safely roped, however. It was easy to guess that someone had meant to return to the Med Ship for orders or to make a report, and found the Med Ship gone. He'd go back inside and turn on a communicator.
"Chee!" said Murgatroyd.
The heavy voice boomed. "You there! This is a human-occupied world! If you come in peace, cut your drive and let our guard ship approach!"
Murgatroyd replied in an interested but doubtful tone. The booming voice bellowed. Another voice of higher authority took over. Murgatroyd was entranced that so many people wanted to talk to him. He made what for him was practically an oration. The last voice spoke persuasively and suavely.
"Chee-chee-chee-chee," said Murgatroyd.
One of the grain ships flickered and ceased to be. It had gone into overdrive. Another. And another. Suddenly they began to flick out of sight by twos and threes.
"Chee," said Murgatroyd with a note of finality.
The last grain ship vanished.
"Calling guard ship," said Calhoun dryly. "This is Med Ship Aesclipus Twenty. I called here a couple of weeks ago. You've been talking to my tormal, Murgatroyd."
A pause. A blank pause. Then profanity of deep and savage intemperance.
"I've been on Dara," said Calhoun.
Dead silence fell.
"There's a famine there," said Calhoun deliberately. "So the grain ships you've had in orbit have been taken away by men from Dara—blueskins if you like—to feed themselves and their families. They've been dying of hunger and they don't like it."
There was a single burst of the unprintable. Then the formerly suave voice said waspishly, "Well? The Med Service will hear of your interference!"
"Yes," said Calhoun. "I'll report it myself. I have a message for you. Dara is ready to pay for every ounce of grain and for the ships it was stored in. They'll pay in heavy metals—iridium, uranium, that sort of thing."
The suave voice fairly curdled.
"As if we'd allow anything that was ever on Dara to touch ground here!"
"Ah! But there can be sterilization. To begin with metals, uranium melts at 1150° centigrade, and tungsten at 3370° and iridium at 2350°. You could load such things and melt them down in space and then tow them home. And you can actually sterilize a lot of other useful materials!"
The suave voice was infuriated. "I'll report this! You'll suffer for this!"
Calhoun said pleasantly, "I'm sure that what I say is being recorded, so that I'll add that it's perfectly practical for Wealdians to land on Dara, take whatever property they think wise—to pay for damage done by blueskins, of course—and get back to Wealdian ships with absolutely no danger of carrying contagion. If you'll make sure the recording's clear . . ."
He described, clearly and specifically, exactly how a man could be outfitted to walk into any area of any conceivable contagion, do whatever seemed necessary in the way of looting—but Calhoun did not use the word—and then return to his fellows with no risk whatever of bringing back infection. He gave exact details.
Then he said, "My radar says you've four ships converging on me to blast me out of space. I sign off."
The Med Ship disappeared from normal space, and entered that improbably stressed area of extension which it formed about itself and in which physical constants were wildly strange. For one thing, the speed of light in overdrive-stressed space had not been measured yet. It was too high. For another, a ship could travel very many times 186,000 miles per second in overdrive.
The Med Ship did just that. There was nobody but Calhoun and Murgatroyd on board. There was companionable silence, with only the small threshold-of-perception sounds which one did not often notice.
Calhoun luxuriated in regained privacy. For seven days he'd had twenty-four other human beings crowded into the two cabins of the ship, with never so much as one yard of space between himself and someone else. One need not be snobbish to wish to be alone sometimes!
Murgatroyd licked his whiskers thoughtfully.
"I hope," said Calhoun, "that things work out right. But they may remember on Dara that I'm responsible for some ten million bushels of grain reaching them. Maybe, just possibly, they'll listen to me and act sensibly. After all, there's only one way to break a famine. Not with ten million bushels for a whole planet! And certainly not with bombs!"