"We can't help them by going back," he said harshly. "Maybe they got away. Maybe they didn't. But the others would catch us for sure if they got near us."

Run. It was all they could do, now. Run to other hills and leave the aircar and hide, and live as Lisa had lived, as others of their kind had lived.

"We've got to think of ourselves, Lisa. It's all we can do, now."

Down through the foothills, toward the open valley, and the future, the long blind race to other mountains, and no choice left, no alternative, and the books lost and the starship left behind, forever....

Lisa cried, and her fingers bit into his arm. Ahead of him, too close to flee or deceive, was another line of aircars, flying in from the valley, their formation breaking as they veered toward him.

"Land, Eric. Land and run!"

"We can't, Lisa. There's not enough time."

Everything was lost now--even the hills.

Unless ... one chance. The only chance, and it was nearly hopeless.

"Get in the back, Lisa," he said. "Climb over the seat and hide in that storage compartment. And stay there."

The two nearest cars had swung about now and paralleled his course, flanking him, drifting in nearer and nearer.

"Why?" Lisa clung to him. "What are you going to do?"

"They don't know you're with me. They probably don't even know I went back to the canyon. They think I'll land at the museum, not suspecting anything's wrong. So I'll do just what they expect me to. Go back, and pretend I don't know a thing."

"You're mad."

"It's our only chance, Lisa. If only they don't lock me up tonight...."

She clung to him for still another minute and then she climbed over the seat and he heard the luggage compartment panel slide open and, a moment later, shut.

The nearest aircar drifted still closer to him, escorting him west-ward, toward the museum. Behind him, other cars closed in.

Walden and Prior were waiting for him at the entrance of the main building, just as they had waited so often before. He greeted them casually, trying to act exactly as he usually did, but their greetings to him were far from casual. They stared at him oddly, Prior even drawing back a little as he approached. Walden looked at him for a long moment, very seriously, as if trying to tell him something, but what it was Eric didn't know. Both men were worried, their anxiety showing in their manner, and Eric wondered if he himself showed the fear that gripped him.

They must know what had happened. By now probably every normal person within a hundred miles of the museum must know.

At the entrance he glanced back idly and saw that one of the aircars that had followed him had landed and that the others were angling off again, leaving. It was too dark to see how many men got out of the car, but Walden and Prior were facing in that direction, communicating, and Eric knew that they knew. Everything.

It was like a trap around him, with each of their minds a strand of the net, and he was unable to see which strands were about to entangle him, unable to see if there were any holes through which he might escape. All he could do was pretend that he didn't even know the net existed, and wait.

Half a dozen men came up to Prior and Walden. One of them was Abbot. His face was very stern, and when he glanced over at where Eric stood in the building entrance his face grew even sterner.

Eric watched them for a moment; then he went inside, the way he usually did when there were lots of people around. He wished he knew what they were saying. He wished he knew what was going to happen.

He went on into the library and pulled out a book at random and sat down and started turning the pages. He couldn't read. He kept waiting for them to come in, for one of them to lay a hand on his shoulder and tell him to come along, that they knew he had found other people like himself and that he was a danger to their race and that they were going to lock him up somewhere.

What would happen to Lisa? They'd find her, of course. She could never escape alone, on foot, to the hills.

What had happened to Mag and Nell?

No one came. He knew that their perceptions lay all around him, but he could sense no emotions, no thoughts but his own.

He sat and waited, his eyes focused on the book but not seeing it. It seemed hours before anyone came. Then Prior and Abbot and Walden were in the archway, looking across at him. Prior's face was still worried, Abbot's stern, Walden's rea.s.suring....

Eric forced himself to smile at them and then turn another page and pretend to go on reading. After a moment he heard their footsteps retreating, and when he looked up again they were gone.

He sat a while longer and then he got up and walked down the ramp and stood for a few minutes looking at the ship, because that too would be expected of him. He felt nothing. The ship was a world away now, mocking him, for his future no longer lay in the past, with the old race, but out in the hills. If he had a future at all....

He went up the ramp again, toward his own room. No one else was in sight. They had all gone to bed, perhaps. They wouldn't expect him to try to run away now.

He began to walk, as aimlessly as he could, in the direction of the aircar. He saw no one. Perhaps it wasn't even guarded. He circled around it, still seeing no one; then, feeling more secure suddenly, he went directly toward it and reached up to open the panel and climb in.

"Is that you, Eric?"

Walden's voice. Quiet as always. And it came from inside the car.

Eric stood frozen, looking up at the ship, trying to see Walden's face and unable to find it in the darkness. He didn't answer--couldn't answer. He listened, and heard nothing except Walden, there above him, moving on the seat.

Where was Lisa?

"I thought you'd come back here," Walden said. He climbed down out of the aircar and stood facing Eric, his body a dim shadow.

"Why are you here?" Eric whispered.

"I wanted to see you. Without the others knowing it. I was sure you'd come here tonight."

Walden. Always Walden. First his teacher and then his friend, and now the one man who stood between him and freedom. For a second Eric felt his muscles tense and he stiffened, ready to leap upon the older man and knock him down and take the ship and run. Then he relaxed. It was a senseless impulse, primitive and useless.

"The others don't know you have any idea what's happened, Eric. But I could tell. It was written all over you."

"What did they find, Walden?"

The old man sighed, and when he spoke his voice was very tired. "They found two women. They tried to capture them, but the women ran out on a ledge. The older one slipped and fell and the other tried to catch her and she fell too. They were dead when the men reached them."

Eric listened, and slowly his tension relaxed, replaced by a dull ache of mourning. But he knew that he was glad to hear that they were dead and not captured, not dragged away from the hills to be bathed and well fed and imprisoned forever under the eyes of the new race.

"The old one was blind," Walden said. "It may have been her blindness that caused her to fall."

"It wasn't."

"No, Eric, it probably wasn't."

They were silent for a moment, and there was no sound at all except for their own breathing. Eric wondered if Lisa still hid in the aircar, if she was listening to them, afraid and hopeless and crying over the death of her people.