problem. All the men of the Explorer were at the same point, wherever they were. Moving to Max's desk, she spoke into the intercom system: "Bess, send a couple of women to look through the ship, room by room, with a stretcher. Make sure all the men are down here." She remembered Reno. "Sparks, heard anything from Reno? Is he back?" Sparks replied weakly after a lag. "The last I heard from Reno was a call this morning. He was raving about mirrors, and Pat Mead's folks not being real people, just carbon copies, and claiming he was crazy; and I should send him the psychiatrist. I thought he was kidding. He didn't call back." "Thanks, Sparks." Reno was lost. Max dialed and spoke to the bridge over the phone. "Are you okay up there? Forget about engineering controls. Drop everything and head for the tanks while you can still walk." June went back to the work table and whispered into her own phone. "Bess, send up a stretcher for Max. He looks pretty bad." There had to be a solution. The life tanks could sustain life in a damaged body, encouraging it to regrow more rapidly, but they merely slowed death as long as the disease was not checked. The postponement could not last long, for destruction could go on steadily in the tanks until the nutritive solution would hold no life except the triumphant microscopic killers that caused melting sickness. There were very few red blood corpuscles in the microscope field now, incredibly few. She tipped the microscope and they began to drift, spinning slowly. A lone corpuscle floated through the center. She watched it as the current swept it in an arc past the dim off-focus bulk of the leucocyte. There was a sweep of motion and it vanished. For a moment it meant nothing to her; then she lifted her head from the microscope and looked around. Max sat at his desk, head in hand, his rumpled short black hair sticking out between his fingers at odd angles. A pencil and a pad scrawled with formulas lay on the desk before him. She could see his concentration in the rigid set of his shoulders. He was still thinking; he had not given up. "Max, I just saw a leucocyte grab a red blood corpuscle. It was unbelievably fast." "Leukemia," muttered Max without moving. "Galloping leukemia yet! That comes under the heading of cancer. Well, that's part of the answer.