He heard the star-port grind open, and the movement of the metal claws groping into space, and then the star-port closed. There was another dead man aboard the Constellation . Sam Burnett shook his long head, trying to think clearly. Pallid and quiet, three bodies lay on the cold transparent tables around him; machines stirred, revolved, hummed. He didn't see them. He didn't see anything but a red haze over his mind. It blotted out the far wall of the laboratory where the shelves went up and dow