Earth. And by the time we were again ready for space, you were able to prevent us. But we will not be denied forever. It took an entire planet working together to get me on Mars to learn your secrets. And when I got here, I found that I wouldn't have time to learn. We had forgotten one simple thing—my skin color. It isn't normal here and there is no way of changing it since the extract combines permanently with body cells. So I had to do the next best thing—obtain a sample of your technology and bring it to Earth. I planned at first to get enough money to buy a ship. But those creeps in Marsport don't lose like gentlemen. I damn near had to beat my way out of that joint. And when a couple of them came after me, I figured it was all up. I could kill them of course, but that wouldn't solve anything. Since I can't fly one of your ships yet, I couldn't steal one—and I wouldn't have time to buy one because I was pretty sure the Patrol would be after me as soon as the rumors of a red man got around. You see—they know what we look like and its their job to keep us cooped up—"

"Hmm," I said.

"Why do they do it?" Redman asked. "We're just as human as you are." He shrugged. "At any rate," he finished, "I was at the end of my rope when you came along. But you have a ship—you can fly—and you'll take me back to Earth."

"I will?" I asked.

He nodded. "I can make it worth your while," he said.

"How?" I asked.

"Money. You'll do anything for money." Redman looked at me soberly. "You're a repulsive little weasel, Cyril, and I would distrust you thoroughly except that I know you as well as you know me. That's the virtue of being human. We understand each other without words. You are a cheap, chiseling, doublecrossing, money-grabbing heel. You'd kick your mother's teeth out for a price. And for what I'm going to offer you, you'll jump at the chance to help us—but I don't have to tell you that. You know already."

"What do you mean—know already?" I said. "Can I read your mind?"

"Do you mean to tell me—" Redman began. And then a peculiar smile crossed his face, a light of dawning comprehension. "Why no," he said, "why should you be telepathic—why should you? And to think I kept hiding—" he broke off and looked at me with a superior look a man gives his dog. Affectionate but pitying. "No wonder there were no psych fields protecting that dice game—and I thought—" he started to laugh.

And I knew then why the Patrol had sealed Earth off. Mutated by radiation, speeded up in their evolution by the effects of the Blowup, Earthmen were as far ahead of us mentally as we were ahead of them technologically. To let these telepaths, these telekinetics—and God knows what else—loose on the Galaxy would be like turning a bunch of hungry kelats loose in a herd of fat sloats. My head buzzed like it was filled with a hive of bees. For the first time in years I stopped thinking of the main chance. So help me, I was feeling noble!

"Just take it easy, Cyril," Redman said. "Don't get any bright ideas."

Bright ideas! Ha! I should be getting bright ideas with a character who could read me like a book. What I needed was something else.

"If you cooperate," Redman said, "you'll be fixed for life."

"You're not kidding," I said. "I'd be fixed all right. The Patrol'd hound me all the way to Andromeda if I helped you. And don't think they wouldn't find out. While we can't read minds, we can tell when a man's lying."

"Have you ever heard of Fort Knox?" Redman asked.

Fort Knox—Fort Knox—fourknocks! the thought staggered me.

"The gold I had came from there," Redman said.

Fourknocks! Sure, I'd heard of it. What citizen hadn't? They still tell stories of that fabulous hoard of gold. Tons of it buried on Earth waiting for someone with guts enough to go in and find it.

"All your ship will hold," Redman said. "After we analyze its principles."

Five tons of gold!