Star Surgeon by Alan Edward Nourse

"I think," Black Doctor Hugo Tanner said ominously, "that an explanation is in order. I would now like to hear it. And believe me, gentlemen, it had better be a very sensible explanation, too."

The pathologist was sitting in the control room of the _Lancet_, his glasses slightly askew on his florid face. He had climbed through the entrance lock ten minutes before, shaking snow off his cloak and wheezing like a boiler about to explode; now he faced the patrol ship's crew like a small but ominous black thundercloud. Across the room, Jack Alvarez was staring through the viewscreen at the blizzard howling across the landing field below, a small satisfied smile on his face, while Tiger sulked with his hands jammed into his trousers. Dal sat by himself feeling very much alone, with Fuzzy peering discreetly out of his jacket pocket.