"Then it's hopeless," I said. "We can't fight what they've got here unless we take the cities, and if we take the cities they'll send something we can't fight at all -"

"Your appreciation is correct, but the situation is not hopeless. The problem is hardly new. We planned to deal with it, we had to, before we could even contemplate independence. Unfortunately, events caught up with us. We cannot use the original plan. But there is a way."

"I don't like this," Erica said.

"I beg your pardon?"

"You heard me, Mr. Farr. I don't like this. There's no reason why you should be discussin' high policy with Garrett."

Farr merely nodded. "As you suppose, I need him."

"For something damned dangerous," Erica said. "Why Garrett?"

"Ricky!" I said.

"Don't Ricky me! You've done enough. Mr. Farr, there must be lots of people you can send."

"Unfortunately, there are not. Garrett has special qualifications for this job -"

"Crap!" I'd never seen Erica so angry. "What's so damned special about Garrett? Me, I happen to love the guy, but how's he special to you?"

"I cant tell you. No hint of this must ever get out. Only those going on the mission will know."

"You can find somebody else! We're going to be married, and Garrett has done enough."

I had been just about to say the same thing. I really had. Why should I volunteer? But I wasn't going to have my red-headed, blue-eyed sweetheart make a coward out of me in front of the commanding offcer! Even then, I might still have told him to find another boy, but she started talking at the same time I did, and I heard myself say, "I'll do it, Commander. What do you need?"

I heard myself say it. I put it that way because it was not what I'd intended to say. I am not a hero.

It took another ten minutes to get Ricky out of the offce.

By the time she was gone, we weren't speaking. Shed told me I was a damned fool, and I felt like one. "All right, sir, what the hell is so special about me?" I demanded.

"You're less than a Mars year from Earth," Farr said. He pointed to a big map on the wall next to him. "There is one thing we can do that will assure that Earth won't interfere, and also spark the townsmen into revolution. We must begin the Project."

I thought he'd gone off his head. I told him so.

"Not at all."

"But that takes atom bombs," I said. "Anyway that's what they tell me -"

"It does. You're going to get them for us."

"Now I know you've lost your mind. Sir."

"I assure you I haven't," Farr said. "How do you make an atomic bomb?"

"Good Lord, I don't know. That's a secret -"

"Hardly. Any high school student could find out. The basic structure of nuclear weapons has been known, and published, since 1949. An atomic weapon is nothing more than a critical mass of the proper radioactive materials. The only difficult part is obtaining the fissionables, such as refined uranium. And there is plenty of refined uranium on Mars."

"And you want me to walk in and steal some?"

Farr grinned. It wasn't a pleasant grin because of the gaps in his, teeth. "How did you guess? That happens to be precisely what I want you to do. Now look here on this map.

"The Federation, not being entirely insane, keeps all refined uranium in a safe place. Specifically here, in this crater." He pointed to one of the big rimwalls in the Deucalion region. The crater was over a hundred and fifty kilometers in diameter.

"It happens that the main industrial power pile for Novoya Sverdlovsk and Marsport is also in Deucalion Crater," Farr said. "Thus, if we take control of this installation, we have the materials for atomic weapons, and also a very big threat to use against the major companies. We give the companies a choice: help us, or lose their power supply."

"That makes sense," I said. Solar power is marvelous but on the scale the big outfits operate on it takes a lot more than they can collect with solar cells. Only the big atomic power plants can furnish the kind of power Mars General and the other big industries need.

I looked at the map. The power plant and uranium storage facility were located right in the center of the crater. A monorail line ran from there to the crater rim, then branched, one branch running north to Novoya Sverdlovsk in Edom Crater, the other directly east to Yappy Crater and Marsport. There was no other way in. "How do we get there?" I asked. "They can see us coming - "

"For about 250 kilometers," Farr said. "Obviously we cannot take them by surprise if we use the monorails. The trains are stopped at the rim, and there is a large garrison there. Even if we could capture a train without causing an alarm, which I doubt, we wouldn't get past that garrison."

"Yeah, but if we take tractors there's no way we can get into the crater without being seen, and certainly no way to get across it. That's smooth plain, not a big boulder field like Hellas - "

"I see you appreciate the problem," Farr said. "Actually, it's worse than that. There are observation posts all around the rim. A tractor couldn't get within a hundred miles of Deucalion crater without being spotted."

He was enjoying this. "Then I don't see how we do it. Wait a minute. You said walk." I looked at the map again. "Commander, you're talking about going 150 miles on foot?"

"Yes."

"Can't be done. A man can't carry enough air, let alone food and water. Be generous; figure we make forty miles a day -"

"I think you would average more like twenty."

"So do I. Call it thirty. That's five days and it's just not possible."

"I sincerely hope the Feddies think that way," Farr said. "And I rather suppose they do. Most of their officials have not been here very long. Men who live on Mars tend to become Mars sympathizers, meaning they are unreliable and thus not to be trusted around the uranium stockpile. If you, with all your Rim experience, think it can't be done, then I'm sure they think that."

I looked at the map again, then shook my head. "I don't see it. Sure, if you can guarantee us permafrost near the surface, maybe, just maybe, we could carry enough solar cells to set up airmakers and hydrolize water to get oxygen. But we'd spend one day out of two just sitting there collecting power, and it'd take damn near an acre of solar cells. It'd be easier to hide tractors!"

"Right again. Nevertheless, there is a way. Give up?” "Yeah," I said. "I give up. How?"

He told me. I leaned back in my chair and laughed like hell. Then I stopped laughing. I was going to have to do it.

Five hundred men and seventy tractors: not a very large military force on which to pin the hopes of a world. At that it was 20 percent of the Rim's fighting strength. We had to be very careful not to be seen, because if Ellsworth knew the Rim had sent that much force to the north, he could attack without much fear.

Our agents in Hellastown were instructed to foment sabotage and rebellion among the miners: incidents, work slowdowns, riots, anything to keep Ellsworth on edge and his troops in town. Meanwhile our group started northwest.

We crossed the Rim Range by a track that led past my valley. I had never seen it except on maps, but I recognized it, a big ringwall and two small flat-top mesas, with a canyon below them. I stared at it, wondering if I would ever live there with Erica. It seemed such a short time ago that we were planning where to put our agrodomes, and where our first tunnel would be.

It was a short time, I told myself. Less than a month. Yet, although it seemed that we'd been engaged only a few days, the month of war seemed like a year. Time is a strange thing, and I'm not at all sure we understand it as well as we think we do.

We went under the monorail from Hellastown to Marsport by passing through a deep canyon at night. When that was behind us we all breathed a sigh of relief. Then we plunged on across the plains, across canyon ends, over craters or around them, striving for a straight-line distance of a hundred miles a day. The way was tortuous; we often had to drive twice a hundred miles and more to do it. We had no real maps, only satellite photographs; no one had ever been here before us.