He smiled a little. "I'll stick around, Nolan. If you do manage to get back to Earth, don't make the Martians sound too bad."

"I won't," I answered, troubled by an odd sense of regret.

Loosening that exit disc proved in the end to be no special trick.

Then we just waited for a lull in the activity in the tunnels around us. We all put on our oxygen helmets, Miller included, for the air-pressure here in our "cage" would drop as soon as the loosened disc was dislodged. We put our shoulders against it and pushed. It popped outward. Then the three of us, with Miller staying behind, scrambled on hands and knees through the tunnel that lay before us.

A crazy kind of luck seemed to be with us. For one thing, we didn't have to retrace our way along the complicated route by which we had been brought down to our prison. In a minute we reached a wide tunnel that slanted upward. A gla.s.sy rotary airlock worked by a simple lever--for, of course, most of the city's air would be pressurized to some extent for the Martians--led into it.

The main pa.s.sage wasn't exactly deserted, but we traversed it in leaps and bounds, taking advantage of the weak Martian gravity. Shapes scattered before us, chirping and squeaking.

We reached the surface quickly. It was frigid night. We stumbled away into it, taking cover under some lichenous bushes, while we looked for the highway. It was there, plain to see, in the light of Phobos.

We dashed on toward it, across what seemed to be a planted field. A white layer of ice-crystal mist flowed between and over those tough cold-endured growths. For a minute, just as two shots rang out behind us, we were concealed by it completely.

[Ill.u.s.tration]

I thought to myself that, to the Martians, we were like escaped tigers or leopards--only worse. For a moment I felt that we had jumped from the frying pan into the fire. But, as we reached the highway, my spirits began to soar. Perhaps--only perhaps--I'd see my family again before too long. There was traffic on the road, trains of great soft-tired wagons, pulled by powered vehicles ahead. I wondered if, like on Earth, much freight was moved at night to avoid congestion.

"When I was a college kid, I used to hitchhike sometimes," Craig remarked.

"I don't guess we had better try that here," Klein said. "What we can do is more of a hobo stunt."

We found the westerly direction we needed easily enough from the stars. The constellations naturally looked the same as they did at home. We hid behind some rustling leaves, dry as paper, and waited for the next truck train to pa.s.s. When one came, we used the agility which Martian gravity gave us and rushed for the tail-end wagon and scrambled aboard. There we hid ourselves under a kind of coa.r.s.e-fibered tarpaulin.

Peering past boxes and bales, we kept cautious watch of the road. We saw strange placques, which might have served as highway signs. Again we saw buildings and pa.s.sing lights.

We were dopes, of course, ever to think that we were going to get away with this. Our overwrought nerves had urged us to unreasoning rebellion, and we had yielded to them.

Our last hope was punctured when at last we saw the flood-lights that bathed our ship. The taste on my tongue was suddenly bitter. There were roughly three things we could do now, and none of the choices was especially attractive.

We could go back where we had come from. We could try to keep concealed in the countryside, until we were finally hunted down, or until our helmet air-purifiers wore out and we smothered. Or we could proceed to our rocket, which was now surrounded by a horde of Martians. Whichever one we chose, it looked as if the end would be the same--death.

"I'm for going on to the ship," Klein said in a harsh whisper.

"The same with me," Craig agreed. "It's where we want to go. If they're going to kill or capture us, it might as well be there."

Suddenly, for no good reason, I thought of something. No special safeguards had been set up around that sealed room in the city.

Escape had been easy. What did that mean?

"Okay," I said. "Maybe you've both got the same hunch I just got. We walk very slowly toward our rocket. We get into the light as soon as possible. Does that sound right to you? We'd be going back to the plan. And, it could be, to common sense."

"All right," Klein answered.

"We'll give it a whirl," Craig agreed.

We jumped off that freight wagon at the proper moment and moved toward the rocket. Nothing that we'd done on Mars--not even making our first acquaintance with the inhabitants--was as ticklish an act.

Step after slow step, we approached the floodlighted area, keeping close together before that horde which still looked horrible to us.

One thing in our favor was that the Martians here had probably been warned of our escape by whatever means of communication they used. And they could certainly guess that our first objective would be our ship.

Hence they would not be startled into violence by our sudden appearance.

One of them fired a shot which pa.s.sed over our heads. But we kept on going, making our movements as unfrightening as we could to counteract the dread of us that they must have still felt.

Panic and the instinctive fear of the strange were balanced in our minds against reason. We got to the nose of our ship, then to the open doors of its airlock. The horde kept moving back before us and we clambered inside. Martian eyes remained wary, but no more action was taken against us.

Our cabin had been ransacked. Most of the loose stuff had been removed ...

even my picture of Alice, and our two kids.

"Who cares about trifles?" I muttered. "Rap on wood, guys--I think we've won. So have the local people."

"You're right," Klein breathed. "What other reason can there be for their not jumping us? Miller's pa.s.sive strategy must've worked the first time. The story that we meant no harm must have gotten around.

They don't want to make trouble, either. And who, with any sense does?"

I felt good--maybe too good. I wondered if the Martians felt the same eager fascination for the enigmas of s.p.a.ce that we felt, in spite of the same fear of the nameless that we too could feel. My guess was that they did. Undoubtedly they also wanted interplanetary relations to be smooth. They could control their instinctive doubts to help attain this objective. If they coveted Earth's resources, it was still far away, and could defend itself. Besides, they were not built to live in comfort under the raw conditions of its strange environment.

Commerce was the only answer.

Suddenly Mars was no longer a hostile region to me, out in the reaches of s.p.a.ce. Again it was full of endless, intriguing mysteries. It was beautiful. And knowledge of that beauty and mystery had been won, in spite of some blundering. The scheme that we had practiced, and that Miller had stuck to, had paid off. It had broken down that first inevitable barrier of alienness between Earthmen and Martians enough so that they now had a chance to start looking for the countless similarities between us.

A fraction of our food stores aboard the rocket had been taken, probably for a.n.a.lysis. But there was plenty more. We closed the airlock, repressurized the cabin from air-tanks, and cooked ourselves a meal. Then we slept in shifts, one of us always awake as guard.

At dawn, Miller hammered at a window. He'd been brought out from the city. We weren't too surprised by then.

Etl turned up at noon. He came in a kind of plane, which landed right beside our rocket, making quite a noise. I recognized him easily enough; I'd know those eye-stalks anywhere. Besides, as he came out of the plane, he was carrying the speech-tube that Klein had made for him.

We let him into the cabin. "h.e.l.lo, gang," he said, manipulating the tube with his tendrils. "I see you pa.s.sed your tests almost as well as I did on those weird things you were always making me take on Earth."

"So they were tests," I said.

"Sure. Otherwise, why do you think I didn't come to you before? They said you had to solve your own problems."

"How did they treat you?" Miller wanted to know.

"Mostly my people were nice to me. They took me to a great desert city, far away. Sort of the capital of Mars. It's in an 'oasis' where a network of 'ca.n.a.ls' join. The ca.n.a.ls fit an old theory of your astronomers. They're ribbons of irrigated vegetation. But the water is piped underground. I spoke to my people in the way that you once thought I would, trying to convince them that you were okay. But I guess that you did most of the job yourselves."

"In spite of a lot of blunders, maybe we did, Etl," I replied dryly.

"What are your plans? Going to stay here now? Or will you come back with us?"

I sensed that he would stay. It was natural. Maybe I even sensed a remoteness in him, a kind of withdrawal. Not unfriendly, but ... we both knew it was the parting of the ways.

"It's best for what we're trying to accomplish, Nolan," he said. "I can tell my people about Earth; you can tell yours about Mars.

Besides, I like it here. But I'll be back on Earth some time. Just so you'll come here again. Thanks to you guys for everything."