"Antibiotic," Channok said, his scalp still crawling. "What you—what voyageurs call a lich, I think. I don't know that kind. But it got the guy in that last cabin."

The occupant of the last cabin had looked as if somebody had used a particularly vicious sort of acid gun on him, which somehow had missed damaging his clothing. To the grisly class of life-forms that produced that effect, an ordinary spacesuit offered exactly no resistance.

"A lich can't last more than an hour or so in space, Channy," Peer's voice came shakily after a pause. "It's a pretty awful way to get it, but that stuff over there must have been dead for a long time now."

"I know," said Channok. He hesitated, and then cut off the Killall spray and started the blowers to clear the lock. "I guess I just panicked for a moment. But I'm going to go over that ship with decontaminant before we do any more investigating! And meanwhile you'd better get in a few hours of sleep!"

"Wouldn't hurt any," Peer agreed. "How do you suppose the lich got on board?"

He could tell her that. He'd seen a heavy, steel-framed glassite container in a corner of the cabin, opened. They must have been transporting some virulent form of antibiotic; and there might have been an accident—

Five hours later, they had come to the conclusion that it had been no accident. Four hours of that time, Channok had been engaged in disinfecting the Ra-Twelve, even her engine sections. He'd given the one man left on board space-burial in one of the Asteroid's steel cargo crates. The crate hadn't been launched very far and presently hung suspended some eighty yards above the two ships, visible as a black oblong that obscured the stars behind it.

It and its contents were one of the reasons Channok was anxious to get done with the job of salvaging the Ra-Twelve. She was a stream-lined, beautiful ship; but after what had happened, he knew he would never be able to work up any liking for her. She seemed to be waiting sullenly and silently for a chance to deal with the two humans who had dared come on board her again.

He sealed her up presently, filled her with a fresh airmix and, having once more checked everything he could think of, let Peer come over again for a final briefing on their run to Old Nameless.

Peer wandered promptly into the cabin where the dead man had been and there discovered the wall-safe.