father was keeping hidden back of that brisk, efficient exterior.

I'll get the Cavour drive someday, Alan thought suddenly. And I'll be getting it for him as well as me.

The bizarre buildings of the Enclave loomed up before him. Behind them, just visible in the purplish twilight haze, were the tips of the shining towers of the Earther city outside. Somewhere out there, probably, was Steve.

I'll find him too, Alan thought firmly.

Most of the Valhalla's people had already been assigned rooms in the quarantine section of one of the Enclave buildings when Alan and his father arrived.

The bored-looking desk clerk—a withered-looking oldster who was probably a retired Starman—gave Alan his room number. It turned out to be a small, squarish room furnished with an immense old pneumochair long since deflated, a cot, and a washstand. The wall was a dull green, with gaping cracks in the faded paint, and cut heavily with a penknife into one wall was the inscription, BILL DANSERT SLEPT HERE, June 28 2683 in sturdy block letters.

Alan wondered how many other starmen had occupied the room before and after Bill Dansert. He wondered whether perhaps Bill Dansert himself were still alive somewhere between the stars, twelve centuries after he had left his name in the wall.

He dropped himself into the pneumochair, feeling the soggy squish of the deflated cushion, and loosened the jacket of his uniform.

"It's not luxurious," he told Rat. "But at least it's a room. It's a place to stay."

The medics started coming around that evening, checking to see that none of the newly-arrived starmen had happened to bring back any strange disease that might cause trouble. It was slow work—and the Valhalla people were told that it would take at least until the following morning before the quarantine could be lifted.

"Just a precautionary measure," said the medic apologetically as he entered Alan's room clad in a space helmet. "We really learned our lesson when that shipload from Altair came in bearing a plague."

The medic produced a small camera and focused it on Alan. He pressed a button; a droning sort of hum came from the machine. Alan felt a curious glow of warmth.

"Just a routine check," the medic apologized again. He flipped a lever in the back of the camera. Abruptly the droning stopped and a tape unravelled out of the side of the machine. The medic studied it.

"Any trouble?" Alan asked anxiously.

"Looks okay to me. But you might get that cavity in your upper right wisdom tooth taken care of. Otherwise you seem in good shape."

He rolled up the tape. "Don't you starmen ever get time for a fluorine treatment? Some of you have the worst teeth I've ever seen."

"We haven't had a chance for fluorination yet. Our ship was built before they started fluorinating the water supplies, and somehow we never find time to take the treatment while we're on Earth. But is that all that's wrong with me?"

"All that I can spot just by examining the diagnostic tape. We'll have to wait for the full lab report to come through before I can pass you out of quarantine, of course." Then he noticed Rat perched in the corner. "How about that? I'll have to examine it, too."

"I'm not an it," Rat remarked with icy dignity. "I'm an intelligent extra-terrestrial entity, native of Bellatrix VII. And I'm not carrying any particular diseases that would interest you."

"A talking rat!" The medic was amazed. "Next thing we'll have sentient amebas!" He aimed the camera at Rat. "I suppose I'll have to record you as a member of the crew," he said, as the camera began to hum.

After the medic had gone, Alan tried to freshen up at the washstand, having suddenly recalled that a dance was on tap for this evening.

As he wearily went through the motions of scrubbing his face clean, it occurred to him that he had not even bothered to speak to one of the seven or eight Crew girls he had considered inviting.

He sensed a curious disturbed feeling growing inside him. He felt depressed. Was this, he wondered, what Steve had gone through? The wish to get out of this tin can of a ship and really see the universe?

"Tell me, Rat. If you were me——"

"If I were you I'd get dressed for that dance," Rat said sharply. "If you've got a date, that is."

"That's just the point. I don't have a date. I mean, I didn't bother to make one. I know all those girls so well. Why bother?"

"So you're not going to the dance?"

"Nope."

Rat clambered up the arm of the pneumochair and swivelled his head upward till his glittering little eyes met Alan's. "You're not planning to go over the hill the way Steve did, are you? I can spot the symptoms. You look restless and fidgety the way your brother did."

After a moment of silence Alan shook his head. "No. I couldn't do that, Rat. Steve was the wild kind. I'd never be able just to get up and go, the way he did. But I've got to do something. I know what he meant. He said the walls of the ship were pressing in on him. Holding him back."

With a sudden impatient motion he ripped open the magnesnaps of his regulation shirt and took it off. He felt himself changing, inside. Something was happening to him. Maybe, he thought, he was catching whatever it was Steve had been inflamed by. Maybe he had been lying to himself all along, about being different in makeup from Steve.

"Go tell the Captain I'm not going to the dance," he ordered Rat. "Otherwise he'll wonder where I am. Tell him—tell him I'm too tired, or something. Tell him anything. But don't let him find out how I feel."

Chapter
Four

The next morning, Roger Bond told him all about the dance.

"It was the dullest thing you could imagine. Same old people, same dusty old dances. Couple of people asked me where you were, but I didn't tell them anything."

"Good."

They wandered on through the heap of old, ugly buildings that composed the Starmen's Enclave. "It's just as well they think I was sick," Alan said. "I was, anyway. Sick from boredom."

He and Roger sat down carefully on the edge of a crumbling stone bench. They said nothing, just looking around. After a long while Alan broke the uncomfortable silence.

"You know what this place is? It's a ghetto. A self-imposed ghetto. Starmen are scared silly of going out into the Earther cities, so they keep themselves penned up in this filthy place instead."

"This place is really old. I wonder how far back those run-down buildings date."

"Thousand years, maybe more. No one ever bothers to build new ones. What for? The starmen don't mind living in the old ones."

"I almost wish the medical clearance hadn't come through after all," said Roger moodily.

"How so?"

"Then we'd be still quarantined up there. We wouldn't be able to come down and get another look at the kind of place this really is."

"I don't know which is worse—to be cooped up in quarantine or to go wandering around a dismal hole like the Enclave." Alan stood up, stretched, and took a deep breath. "Phew! Get a lungful of that sweet, fresh, allegedly pure Terran air! I'll take ship atmosphere, stale as it is, any time over this smoggy soup."

"I'll go along with that. Say, look—a strange face!"

Alan turned and saw a young starman of about his own age coming toward them. He wore a red uniform with gray trim instead of the orange-and-blue of the Valhalla.

"Welcome, newcomers. I suppose you're from that ship that just put down?