He pressed down on the accelerator and the car responded with a flow of power. The countryside fell away from the road on either side. Far below he could see a river, winding broadly to the far-off sea. The summer day sent its heat-shimmers across the miniature landscape.

The road curved again. Theirs was the only car he had seen since he'd come out of the tunnel. But now, far ahead, he saw another. It was standing at the side of the road, next to a gate that came down in the manner of one at a railroad crossing. But he knew by its black and white diagonals and by the little sentry hut half hidden behind the other car that it marked the frontier. A man with a rifle on his shoulder stood there. They drew up to it fast, but his foot automatically eased up on the floorboard pedal until the girl spoke sharply.

"Right through it, Sweetheart."

In the rear-view mirror he saw her leaning forward, her face tense.

In a moment it would be time to stop, if he were going to.

Paul Asher hesitated a moment. Then he too leaned forward, the band pressing into his chest. He was breathing heavily. There was an almost inaudible click.

He trod on the accelerator. He had a glimpse of the guard unslinging his rifle from his shoulder and of another man running toward the parked car as his vehicle smashed into the flimsy gate and sent it, cracked and splintered, to the side of the road. He fought the slight wrench of the wheel and sped on. He thought he heard a shot.

"Nice work," the girl said. She seemed to be appraising him as she looked at him. "My name, incidentally, is Naomi."

"Hello," he heard himself saying as he whipped the car around a curve that hid the frontier behind a hill. "You seem to know who I am."

"That I do," she said.