Return. Go home. First comes madness and then comes death and then comes the spinning outward forever. Turn back, spaceman. Bodiless whisper out of the thick thrumming dark, sourceless all-pervading susurration, and it mocked, there was the cruel cynical scorn of the outer vastness running up and down the laughing voice. It murmured, it jeered, it ran along nerves with little icy feet and flowed through the brain, it called and gibed and hungered. It warned them to go back, and it knew they wouldn't and railed its mockery at them for it. Demon whisper, there in the huge cold loneliness, sneering and grinning and waiting. Donovan sat up and groped for the light switch. "We're close enough," he said tonelessly. "We're in their range now." Footsteps racketed in the corridor outside. A sharp rap on his door. "Come in. Come in and enjoy yourself." III Donovan hadn't found the switch before the door was open and light spilled in from the hallway fluorotubes. Cold white light, a shaft of it picking out Wocha's monstrous form and throwing grotesque shadows on the walls. Commander Jansky was there, in full uniform, and Ensign Jeanne Scoresby, her aide. The younger girl's face was white, her eyes enormous, but Jansky wore grimness like an armor. "All right, Donovan," she said. "You've had your binge, and now the trouble is starting. You didn't say they were voices." "They could be anything," he answered, climbing out of the bunk and steadying himself with one hand. His head swam a little. The corners of the room were thick with shadow. Back, spaceman. Turn home, human. "Delusions?" The man laughed unpleasantly. His face was pale and gaunt, unshaven in the bleak radiance. "When you start going crazy, I imagine you always hear voices." There was contempt in the gray eyes that raked him. "Donovan, I put a technician to work on it when the noises began a few hours ago. He recorded them. They're very faint, and they seem to originate just outside the ear of anyone who hears them, but they're real enough. Radiations don't speak in human Anglic with an accent such as I never heard before. Not unless they're carrier waves for a message. Donovan, who or what is inside the Black Nebula?" The Ansan's laugh jarred out again. "Who or what is inside this ship?" he challenged.