Another item. This had been most painstakingly contrived. There must be orders to take effect if the first part did not dispose of Calhoun. The ship had been a deadfall trap, which he'd evaded. It might now be a booby trap, just in case the deadfall failed to work. Yes. A man who orders a machine to commit murder will have given it other orders in case its first attempt fails. If Calhoun went down to verify his suspicion of an extra control-central, that might be the trigger that would blast the whole ship; that in any event would try to kill him again.
Murgatroyd said, "Chee! Chee!" The vision screens meant to him that there must be people waiting outside to give him sweet cakes and coffee. He began to be impatient. He added in a fretful tone, "Chee!"
"I don't like it either, Murgatroyd," said Calhoun wryly. "Somebody's tried to kill us—at any rate me—and he must think he had some reason, but I can't guess what it is! I can't even guess how anybody could get to a Med Ship at headquarters to gimmick it if they wanted to slaughter innocent people like you and me! Somebody must have done it!"
"Chee! Chee!" said Murgatroyd, urgently.
"You may have a point there," said Calhoun slowly. "We, or at least I, should be dead. We are expected to be dead. There may be arrangements to make certain we don't disappoint somebody. Maybe we'd better play dead and find out. It's probably wiser than trying to find out and getting killed."
A man who has detected one booby trap or deadfall designed for him is likely to suspect more. Calhoun was inclined to go over his ship with a fine-toothed comb and look for them. A setter of booby traps would be likely to anticipate exactly that and prepare for it. Lethally.
Calhoun looked at the pilot's chair. It might not be wise to sit there. Anybody who received the ship's self-sent call would receive with it an image of that chair and whoever sat in it. To play dead, he shouldn't do anything a dead man couldn't do. So he shrugged. He sat down on the floor.
Murgatroyd looked at him in surprise. The signal going-out light burned steadily. That signal now filled a sphere two hundred million miles across. If there was a ship waiting to pick it up—and there'd be no reason for the call otherwise—it might be one or two or ten light-hours away. Nobody could tell within light-hours where a ship would break out of overdrive after three weeks in it.
Calhoun began to rack his brains. He couldn't guess the purpose of his intended murder, but he didn't mean to underestimate the man who intended it.
Murgatroyd went to sleep, curled up against Calhoun's body. There were the random noises a ship tape makes for human need. Absolute silence is unendurable. So there were small sounds released in the ship. Little, meaningless noises. Faint traffic. Faint conversation. Very faint music. Rain, and wind, and thunder as heard from a snug, tight house. It had no significance, so one did not listen to it, but its absence would have been unendurable.
The air apparatus came on and hummed busily, and presently shut off. The separate astrogation unit seemed to cough, somewhere. It was keeping track of the position of the ship, adding all accelerations and their durations—even in overdrive—ending with amazingly exact data on where the ship might be.
Presently Murgatroyd took a deep breath and woke up. He regarded Calhoun with a sort of jocular interest. For Calhoun to sit on the floor was unusual. Murgatroyd realized it.
It was at just this moment, but it was hours after breakout, that the space communicator speaker said metallically, "Calling ship in distress! Calling ship in distress! What's the trouble?"
This was not a normal reply to any normal call. A ship answering any call whatever should identify the caller and itself. This wasn't normal. Calhoun did not stir from where he sat on the floor. From there, he wouldn't be visible to whoever saw a picture of the pilot's chair. The call came again.
"Calling ship in distress! Calling ship in distress! What's your trouble? We read your call! What's the trouble?"
Murgatroyd knew that voices from the communicator should be answered. He said, "Chee?" and when Calhoun did not move he spoke more urgently, "Chee-chee-chee!"
Calhoun lifted him to his feet and gave him a pat in the direction of the pilot's chair. Murgatroyd looked puzzled. Like all tormals, he liked to imitate the actions of men. He was disturbed by breaks in what he'd considered unchangeable routine. Calhoun pushed him. Murgatroyd considered the push a license. He padded to the pilot's chair and swarmed into it. He faced the communicator screen.
"Chee!" he observed. "Chee! Chee-chee! Chee!"
He probably considered that he was explaining that for some reason Calhoun was not taking calls today, and that he was substituting for the Med Ship man. However, it wouldn't give that impression at the other end of the communication link-up. It would be some time before his words reached whoever was calling, but Murgatroyd said zestfully, "Chee-chee!" and then grandly, "Chee!" and then in a confidential tone he added, "Chee-chee-chee-chee!"
Anybody who heard him would be bound to consider that he was the tormal member of the Med Ship's crew, that her human crew member was somehow missing, and that Murgatroyd was trying to convey that information.
There came no further calls. Murgatroyd turned disappointedly away. Calhoun nodded rather grimly to himself; somewhere there would be a ship homing on the call the Med Ship was sending without orders from him. Undoubtedly somebody in that other ship watched, and had seen Murgatroyd or would see him. It would be making a very brief overdrive hop toward the Med Ship. Then it would check the line again, and another hop. It would verify everything. The care taken in the call just made was proof that somebody was cagey. At the next call, if they saw Murgatroyd again, they would be sure that Calhoun was gone from the Med Ship. Nobody would suspect a furry small animal with long whiskers and a prehensile tail of deception.
Murgatroyd came back to Calhoun, who still sat on the floor lest any normal chair be part of a booby trap to check on the success of the air-lock device.
Time passed. Murgatroyd went back to the communicator and chattered at it. He orated in its direction. He was disappointed that there was no reply.
A long time later the communicator spoke briskly—the automatic volume control did not work, until the first syllable was halfway spoken. It had to be very neat indeed.
"Calling distressed ship! Calling distressed ship! We are close to you. Get a line on this call and give us coordinates."
The voice stopped and Calhoun grimaced. While the distress call—if it was a distress call—went out from the Med Ship there was no need for better guidance. Normally, a ship legitimately answering a call will write its own identification on the spreading waves of its communicator. However, this voice didn't name Aesclipus Twenty. It didn't name itself. If these messages were picked up some light-hours away on a planet of the sun Kryder, nobody could realize that a Med Ship was one of the two ships involved, or gain any idea who or what the other ship might be. It was concealment. It was trickiness. It fitted into the pattern of the false images still apparent on the Med Ship's screens and the deceptive data given by its instruments.
The voice from outside the ship boomed once more and then was silent. Murgatroyd went back to the screen. He made oratorical gestures, shrilled, "Chee-chees," and then moved away as if very busy about some other matter.