But there was nothing to smile at in the crowd itself. There were banners and streamers, ringing every possible change on his supposed robotcy. The hostile attitude rose thickly and tangibly into the atmosphere.

From the start the speech was not successful. It competed against the inchoate mob howl and the rhythmic cries of the Fundie claques that formed mob-islands within the mob. Byerley spoke on, slowly, unemotionally—

Inside, Lenton clutched his hair and groaned—and waited for the blood.

There was a writhing in the front ranks. An angular citizen with popping eyes, and clothes too short for the lank length of his limbs, was pulling to the fore. A policeman dived after him, making slow, struggling passage. Byerley waved the latter off, angrily.

The thin man was directly under the balcony. His words tore unheard against the roar.

Byerley leaned forward. “What do you say? If you have a legitimate question, I’ll answer it.” He turned to a flanking guard. “Bring that man up here.”

There was a tensing in the crowd. Cries of “Quiet” started in various parts of the mob, and rose to a bedlam, then toned down raggedly. The thin man, red-faced and panting, faced Byerley.

Byerley said, “Have you a question?”

The thin man stared, and said in a cracked voice, “Hit me!”

With sudden energy, he thrust out his chin at an angle. “Hit me! You say you’re not a robot. Prove it. You can’t hit a human, you monster.”

There was a queer, flat, dead silence. Byerley’s voice punctured it. “I have no reason to hit you.”

The thin man was laughing wildly. “You can’t hit me. You won’t hit me. You’re not a human. You’re a monster, a make-believe man.”

And Stephen Byerley, tight-lipped, in the face of thousands who watched in person and the millions who watched by screen, drew back his fist and caught the man crackingly upon the chin. The challenger went over backwards in sudden collapse, with nothing on his face but blank, blank surprise.

Byerley said, “I’m sorry. Take him in and see that he’s comfortable. I want to speak to him when I’m through.”

And when Dr. Calvin, from her reserved space, turned her automobile and drove off, only one reporter had recovered sufficiently from the shock to race after her, and shout an unheard question.

Susan Calvin called over her shoulder, “He’s human.”

That was enough. The reporter raced away in his own direction.

The rest of the speech might be described as “Spoken but not heard.”

Dr. Calvin and Stephen Byerley met once again—a week before he took the oath of office as mayor. It was late—past midnight.

Dr. Calvin said, “You don’t look tired.”

The mayor-elect smiled. “I may stay up for a while. Don’t tell Quinn.”

“I shan’t. But that was an interesting story of Quinn’s, since you mention him. It’s a shame to have spoiled it. I suppose you knew his theory?”

“Parts of it.”

“It was highly dramatic. Stephen Byerley was a young lawyer, a powerful speaker, a great idealist—and with a certain flair for biophysics. Are you interested in robotics, Mr. Byerley?”