They mustn't see Lisa. They mustn't get close enough to realize who he was.

He swung away from them, perpendicular to their course, angling so that he would be out of perception range, and then he circled, close to the ground, as they swept by, undeviating, purposeful, toward the mountains.

Toward the mountains.

Fear. Sudden, numbing fear and the realization of his own carelessness.

"What's the matter, Eric?"

He had swung about and now followed them, far behind them and off to one side, much too far away for them to try to perceive him. Perhaps, he thought, perhaps they don't know. But all the time he remembered his own trips to the canyon, taken so openly.

"Oh, Eric, they're not—"

He swung up over the last ridge and looked down, and her words choked off in her throat. Below them lay the canyon, and in it, the long line of aircars, landed now, cutting off the gorge, the light reflecting off them, bronze in the sunset. And the tiny figures of men were even now spreading out from the cars.

"What'll we do, Eric?"

Panic. In her voice and in her eyes and in her fingers that bit into his arm, hurting him, steadying him against his own fear and the twisting realization of his betraying lack of caution.