Their escort was Kehiayan, who'd been with me at Deucalion; this was like old home week. I didn't have to ask what his orders where if it looked like Weinbaum was going to be captured. They didn't give us much time for comradely reunion, and it was just as well; none of us were very cheerful. We remembered how many we'd left at Deucalion.

Once they got us strapped in they brought in a box about a meter long and half that in cross section, and strapped it into the seat next to Erica: Nobody mentioned it. I looked at it and shuddered. Okay, it's a silly reaction; but after all, the Federation was formed to keep Earth safe from nuclear wars, and every teacher in school had pounded in the lesson that there was nothing more horrible than an atom bomb. You don't easily get over that kind of indoctrination.

There wasn't any ceremony. First there was the noise of the engines, and then we felt weight. The ship accelerated slowly at first, then picked up until I suppose we were at two or three Earth gravities. That was no strain on me, but for Erica and the others born on Mars it was seven times what they were used to, and it must have been torture.

After a couple of minutes the engines cut. It was dead quiet in the cabin. With the low pressure you couldn't even hear whispers. Dr. Weinbaum took a pipe out of his pocket and tried to lay it down on the ashtray. It floated up and drifted away in a random air current. We were in free fall.

Erica let go the straps and shoved herself away from the chair. She pushed too hard and bounced off the ceiling, swam helplessly for a moment, and laughed. We all did. None of us had ever had a chance to play in free fall before. My one experience, coming down from the prison ship in the landing boat, didn't help; when I let go I pushed too hard and followed almost the same route Erica had. Eventually we swam over to the view port.

We were crossing from daylight into darkness. Mars looked cut in half, the dark portion only visible because it blocked out the stars. At the edge of the planet you could see the atmosphere, incredibly thin, a tiny thing. I pointed to it.

"There will be more," Erica said. "If this works. And I know it will." Her voice took on that glowing quality they all had when they talked about the Project. I didn't respond.

Directly below us was one of the famous wandering canyons that drive scientists crazy. If you saw it on Earth you'd know it was a dry riverbed. There are a lot of them on Mars, and they mud have been cut by water, but nobody knows for sure where the water went - or where it came from. Right next to the canyon was a big crater, half a million years old, with no trace of water erosion.

Dr. Weinbaum was discussing it with his colleagues. "It certainly didn't rain," he said. "So how does water cut a canyon as deep as any on Earth, and leave an enormous crater standing next to it untouched?"

Our trajectory carried us northwest, and we passed over the east edge of Coprates, the Grand Canyon of Mars. If the other canyons irritate the scientists, this one gives them the screaming willies. It's longer than the United States is wide, and four miles deep in places. The walls are steep cliffs as high as Earth's biggest mountains. The canyon is closed at both ends, so it certainly wasn't formed by water - but no one knows where all the cubic miles of material that used to be in there have gone.

We could just make out the monorail running from the east edge of Coprates to Novoya Sverdlovsk in Edom. There are several big mining colonies in the canyon, and the monorail stops there. The Federation had been talking about extending it westward another two thousand miles to the university colonies, but they hadn't done it. It would be a hell of a big project.

After that we were over the nightside, and we went back to our seats. I took Erica's hand, and she smiled softly, then went to sleep. I leaned back, and the pistol on my belt dug into my ribs.

It reminded me of my orders, and once again I shuddered.

As planned, we landed in darkness, in a crater forty kilometers from New Chicago. The Free Mars movement at New Chicago was supposed to send a party to meet us.

Unless the universities came over to the indepen-dence movement, we were probably there for keeps. There aren't very many independent stations near the university colonies, probably not enough to manufacture the fuel the rocket plane would need to take us home. The universities could do it, but only if they took control away from the Feddies. I wished Weinbaum well; this didn't look like a good place to try to set up a station. It was late fall in the northern hemisphere, and although we were reasonably close to the equator, it was cold outside. I went out first.

Tractors bathed us in light. Three figures got out of one tractor and came toward the plane. I held my submachine gun tightly. They came closer and raised their hands to show they were empty. A female voice came into my headset. "Listen my children, and you shall hear," she said.

"Of slithy toves, that gyre and gimbel in the slot machine," I answered.

"For all is vanity," she said. "Mars and Freedom. Welcome to New Chicago."

I relaxed. There were a dozen possible variations in those code words, but she'd given none of the warning signals. Her welcome to New Chlcap was a bit premature: we were a long way from the universities, and Erica and I weren't going there. I went back in for the others. Plemmons, Doug, and Kehiayan were waiting near the hatch, weapons ready. Erica and the Committee people were clustered at the opposite end. They looked scared. "All's well," I told them.

Weinbaum and his colleagues got into one tractor, which drove away quickly. They wanted to be inside the university before dawn. There were three more tractors for my party. Erica insisted that we put the bomb in the cabin with her; she wasn't going to let it out of her sight. Doug and I got in with her, and I put Plemmons in another tractor behind us. All the tractors pulled power-unit trailers, and there was a lot of other gear loaded on them.

As soon as we were loaded we drove out of the crater. "My name's Eileen," our driver said. "Hi."

We introduced ourselves. She had heard about the big Deucalion raid. "That must have been exciting," she said. "It took a lot of guts."

"Mostly just hard work," I said, but I was flattered just the same.

There wasn't enough light to see much, but the terrain seemed to open up once we got out of the crater where the rocket plane was hidden. Eileen drove without maps, just following the compass; in a few minutes I was lost. I couldn't see her very well. She had her helmet on, faceplate open. In the dark that didn't show a lot, but she had a nice voice.

Erica didn't say anything, and after a while I told her, "Sweetheart, you've had it. Why don't you climb into the back and get some sleep? You'll have that damn bomb for a bunkmate, but I guess you've shared beds with worse."

"All right. I am tired." She climbed out of the seat, and in five minutes she was out. Doug curled up in his seat and began snoring gently.

"Wide-awake troops," Eileen said. There was a laugh in her voice.

"Been a long month," I said. "Doug's been on the perimeter patrol since Deucalion."

"Im sorry. I didn't mean anything." We drove on through the night.

Dawn came about two hours later. First there was a faint pink tinge in the east, nothing like the spectacular dawn we had left behind, then the edge of the sun showed and we had full light. I looked at the landscape around us. It was not like the southern hemisphere. We were in a huge plain. There were very few rocks and craters and no hills at all. Just a flat plain, not much dust blowing, with isolated high mountains thrusting upward at random intervals. The mountains seemed enormous.

"Volcanoes," Eileen told me. "You don't have any in the south."