didn't feel as bad as he had a few minutes before. The motion of the car hadn't helped any, but his head seemed to be knitting a little, and his legs were a little steadier. True, he didn't feel one hundred per cent healthy, but he was beginning to think he might live, after all. And while the doctor was bandaging his head a spirit of new life began to fill the FBI agent.

He was no longer morose and undirected. He had a purpose in life, and that purpose filled him with cold determination. He was going to find the robot-operated car—or whatever it turned out to be.

The doctor, Malone noticed, was whistling "Greensleaves" under his breath as he worked. That, he supposed, was the influence of the bohemian folk singers of Greenwich Village. But he put the noise resolutely out of his mind and concentrated on the red Cadillac.

It was one thing to think about a robot car, miles away, doing something or other to somebody you'd never heard of before. That was just theoretical, a case for solution, nothing but an ordinary job.

But when the car stepped up and bopped Malone himself on the head, it became a personal matter. Now Malone had more than a job to contend with. Now he was thinking about revenge.

He told himself: No car in the world—not even a Cadillac—can get away with beaning Kenneth J. Malone!

Malone was not quite certain that he agreed with Burris' idea of a self-operating car, but at least it was something to work on. A car that could reach out, crown an investigator and then drive off humming something innocent under its breath was certainly a unique and dangerous machine within the meaning of the act. Of course, there were problems attendant on this view of things; for one thing, Malone couldn't quite see how the car could have beaned him when he was ten feet away from it. But that was, he told himself uncomfortably, a minor point. He could deal with it when he felt a little better.

The important thing was the car itself. Malone jerked a little under the doctors calm hands, and swore subvocally.

"Hold still," the doctor said. "Don't go wiggling your head around that way. Just wait quietly until the demijel sets."

Obediently, Malone froze. There was a crick in his neck, but he decided he could stand it. "My head still hurts," he said accusingly.