 How did Ledman get to Mars?
THE HUNTED HEROES By ROBERT SILVERBERG The planet itself was tough enough—barren, desolate, forbidding; enough to stop the most adventurous and dedicated. But they had to run head-on against a mad genius who had a motto: Death to all Terrans! "The surest way to die out here on Mars is to give up." Nothing but what had stopped us could stop a sandcat: sand in the delicate mechanism of the atomic engine. But no; she blamed it all on me somehow: So we were out walking on the spongy sand of the Martian desert. Behind us somewhere was the comfort of the Dome, ahead nothing but the mazes and gullies of this dead world. We had wandered fruitlessly over the red sands all day, both of us listening for the clicks of the counter. Even though the Martian gravity was only a fraction of Earth's, I was starting to tire, and I knew it must have been really rough on Val with her lovely but unrugged legs. She had been just as much inflamed by the idea of coming to Mars to help in the search for uranium as I was. We knew the pay was poor, but we had felt it a sort of obligation, something we could do as individuals to keep the industries of radioactives-starved Earth going. No, we had decided together to come to Mars—the way we decided together on everything. The geiger kept up a fairly steady click-pattern, but never broke into that sudden explosive tumult that meant we had found pay-dirt. I longed to lie down on the soft, spongy Martian sand and bury myself. I felt almost guilty for having dragged her out to Mars, until I recalled that I hadn't. Twelve steps later, I decided this was about as far as we could go. I stopped, slipped out of the geiger harness, and lowered myself ponderously to the ground. She slid down beside me, curled up, and in a moment she was fast asleep, sprawled out on the sands. Maybe we shouldn't have come to Mars after all. I watched her, sleeping peacefully, a wayward lock of her soft blonde hair trailing down over one eyebrow, and it seemed hard to believe that we'd exchanged Earth and all it held for us for the raw, untamed struggle that was Mars. We had no ties on Earth that couldn't be broken without much difficulty. The wind blasted a mass of sand into my face, and I felt it tinkle against the oxymask.
 He saved his money to send himself
 He saved his money to send himself  He joined the Corps just as Val and Ron did  He was part of a uranium company who funded his trip  He posed as a tourist and stayed behind on a vacation