astronaut training three years before. Eighty-eight others had been washed out, one way or another, before twelve were fingered for Operation Jehad—so named because Jehad means holy war to Moslems. We were going to Mars, which was named after the Roman war god, so that accounted for the war part of the name, but I don't know what was holy about it except that going to Mars would materialize an ancient dream of man to travel through space to another world. Willy was as healthy as a mountain and even if he looked scared I could tell he had guts. By the time the lift-off date of the operation got a few months away, Willy had climbed to position Number Six. Two higher numbers had flunked the ASD—Aeronautical Systems Division—tests, Dr. Spartan had said two others wouldn't do—the space boys in Washington took Doc's word as gospel—one had been banged up in a car wreck and was still in the hospital, and the sixth man had undergone an emergency appendectomy which left him too weak to lift off for Mars at the scheduled time. There wasn't time now to train more men for the job, which meant that Willy had to pass and Doc Spartan was enough of a perfectionist to insist that Willy get as thorough a testing as the others of the crew. Sure, there were other astronauts. There were ten or twelve working on other projects, but the plasma space engine isn't an ordinary spaceship that anybody can take on a 150,000,000-mile round trip without rigorous training. I reached the gate that separated spacemen from mere Earthlings and flashed my badge on the security guard. "William Drake," he said, grinning. "Sure hope you have luck today, Mr. Drake." "Thanks," I said. "How's Zinder doing?" "Very well, the last I heard. The boys coming off the last Operations shift said he'd handled everything pretty well." I went through the gate. Almost anybody can get through this one, but there are other security officers, at other gates further on down, to keep the place from being overrun by tourists, newspaper guys and people looking for rest rooms. How far you got depended on the color of your badge. Mine was blue, for the wild blue yonder, and I could walk right into Dr. Spartan's office with it, provided I had business there. And I wouldn't dare call on Dr. Spartan unless I did have it. He could eat a man out better than acid. Finally I reached the