"It was my fault. People under tension are in a highly suggestible state. I should have chosen my words more carefully, so that he could not possibly misunderstand—"

"If Willy was capable of such confusion, it's best that we know about it now. In space that kind of a misunderstanding could cost lives."

"Willy may be dying," she said. "Even if he isn't, the Mars project is down the drain for twenty-six months."

"Maybe," I said, "and maybe not. Spartan says he's gotta have a six-man crew, but I don't follow him. It's better to try it short-handed than to get there after the Commies."

"But I've heard him say a dozen times that there must be six men," she said. "Dr. Spartan doesn't change his plans once he makes up his mind."

Certainly that was true, but Dr. Spartan was too intelligent to insist on the impossible. Six men could operate the plasma ship efficiently: two could be on watch, two could rest, two could care for the needs of the others—prepare the meals, do cleaning, and operate the water and air regeneration machinery, check the course and so on. But a system could be worked out for five, four, three—even two or one. The fewer the number, the greater the risk, but the important thing was to achieve a successful mission. The risks could never deter him from trying for a first landing on Mars.

We reached the pad which the big Jupiter rocket had carried Willy Zinder into space twenty-four hours before. Gail stood there looking at it, choking back a sob, and then turned around and started back toward the bunker.

"I could take Willy's place, if he's—he's hurt," she said softly. She probably had been thinking about this while we stood at the launching pad.

I tried to smile at her. "That would cause complications."

"Why? I'm as qualified as you, Bill Drake. I made a test flight in the plasma ship along with Dr. Spartan and Mr. Ludson. I've passed every test you and the others passed and I've made a flight to the moon."