"Yes, I see your point, but surely it's not going to be that easy to get rid of Demerzel."

"You don't know how strong Joranum is growing."

"It doesn't matter how strong he's growing." A shadow of thought seemed to pass over Seldon's brow. "I wonder that his parents came to name him Jo-Jo. There's something juvenile about that name."

"His parents had nothing to do with it. His real name is Laskin, a very common name on Nishaya. He chose Jo-Jo himself, presumably from the first syllable of his last name."

"The more fool he, wouldn't you say?"

"No, I wouldn't. His followers shout it Jo… Jo… Jo… Jo'-over and over. It's hypnotic."

"Well," said Seldon, making a move to return to his tricomputer and adjust the multidimensional simulation it had created, "we'll see what happens."

"Can you be that casual about it? I'm telling you the danger is imminent."

"No, it isn't," said Seldon, eyes steely, his voice suddenly hardening. "You don't have all the facts."

"What facts don't I have?"

"We'll discuss that another time, Yugo. For now, continue with your work and let me worry about Demerzel and the state of the Empire."

Amaryl's lips tightened, but the habit of obedience to Seldon was strong. "Yes, Hari."

But not overwhelmingly strong. He turned at the door and said, "You're making a mistake, Hari."

Seldon smiled slightly. "I don't think so, but I have heard your warning and I will not forget. Still, all will be well."

And as Amaryl left, Seldon's smile faded. Would, indeed, all be well?

But Seldon, while he did not forget Amaryl's warning, did not think of it with any great degree of concentration. His fortieth birthday came and went-with the usual psychological blow.

Forty! He was not young any longer. Life no longer stretched before him as a vast uncharted field, its horizon lost in the distance. He had been on Trantor for eight years and the time had passed quickly. Another eight years and he would be nearly fifty. Old age would be looming.

And he had not even made a decent beginning in psychohistory? Yugo Amaryl spoke brightly of laws and worked out his equations by making daring assumptions based on intuition. But how could one possibly test those assumptions? Psychohistory was not yet an experimental science. The complete study of psychohistory would require experiments that would involve worlds of people, centuries of time-and a total lack of ethical responsibility.

It posed an impossible problem and he resented having to spend any time whatever on departmental tasks, so he walked home at the end of the day in a morose mood.

Ordinarily he could always count on a walk through the campus to rouse his spirits. Streeling University was high-domed and the campus gave the feeling of being out in the open without the necessity of enduring the kind of weather he had experienced on his one (and only) visit to the Imperial Palace. There were trees, lawns, walks, almost as though he were on the campus of his old college on his home world of Helicon.

The illusion of cloudiness had been arranged for the day with the sunlight (no sun, of course, just sunlight) appearing and disappearing at odd intervals. And it was a little cool, just a little.

It seemed to Seldon that the cool days came a little more frequently than they used to. Was Trantor saving energy? Was it increasing inefficiency? Or (and he scowled inwardly as he thought it) was he getting old and was his blood getting thin? He placed his hands in his jacket pockets and hunched up his shoulders.

Usually he did not bother guiding himself consciously. His body knew the way perfectly from his offices to his computer room and from there to his apartment and back. Generally he negotiated the path with his thoughts elsewhere, but today a sound penetrated his consciousness. A sound without meaning.

"Jo… Jo… Jo… Jo…"

It was rather soft and distant, but it brought back a memory. Yes, Amaryl's warning. The demagogue. Was he here on campus?

His legs swerved without Seldon's making a conscious decision and brought him over the low rise to the University Field, which was used for calisthenics, sports, and student oratory.

In the middle of the Field was a moderate-sized crowd of students who were chanting enthusiastically. On a platform was someone he didn't recognize, someone with a loud voice and a swaying rhythm.

It wasn't this man, Joranum, however. He had seen Joranum on holovision a number of times. Since Amaryl's warning, Seldon had paid close attention. Joranum was large and smiled with a kind of vicious camaraderie. He had thick sandy hair and light blue eyes.

This speaker was small, if anything-thin, wide-mouthed, dark-haired, and loud. Seldon wasn't listening to the words, though he did hear the phrase "power from the one to the many" and the many-voiced shout in response.

Fine, thought Seldon, but just how does he intend to bring this about-and is he serious?

He was at the outskirts of the crowd now and looked around far someone he knew. He spotted Finangelos, a pre-math undergraduate. Not a bad young man, dark and woolly-haired.

"Finangelos," he called out.

"Professor Seldon" said Finangelos after a moment of staring as though unable to recognize Seldon without a keyboard at his fingertips he trotted over. "Did you come to listen to this guy?"

"I didn't come for any purpose but to find out what the noise was. Who is he?"

"His name is Namarti, Professor. He's speaking for Jo-Jo."

"I hear that, " said Seldon as he listened to the chant again. It began each time the speaker made a telling point, apparently. "But who is this Namarti? I don't recognize the name. What department is he in?"

"He's not a member of the University, Professor. He's one of Jo-Jo's men."

"If he's not a member of the University, he has no right to speak here without a permit. Does he have one, do you suppose?"

"I wouldn't know, Professor."

"Well then, let's find out."

Seldon started into the crowd, but Finangelos caught his sleeve. "Don't start anything, Professor. He's got goons with him."

There were six young men behind the speaker, spaced rather widely, legs apart, arms folded, scowling.

"Goons?"

"For rough stuff, in case anyone tries anything funny."

"Then he's certainly not a member of the University and even a permit wouldn't cover what you call his 'goons'. Finangelos, signal through to the University security officers. They should have been here by now without a signal."

"I guess they don't want trouble," muttered Finangelos. "Please, Professor, don't try anything. If you want me to get the security officers, I will, but you just wait till they come."

"Maybe I can break this up before they come."

He began pushing his way through. It wasn't difficult. Some of those present recognized him and all could see the professorial shoulder patch. He reached the platform, placed his hands on it, and vaulted up the three feet with a small grunt. He thought, with chagrin, that he could have done it with one hand ten years before and without the grunt.

He straightened up. The speaker had stopped talking and was looking at him with wary and ice-hard eyes.

Seldon said calmly, "Your permit to address the students, sir."

"Who are you?" said the speaker. He said it loudly, his voice carrying.

"I'm a member of the faculty of this University," said Seldon, equally loudly. "Your permit, sir?"

"I deny your right to question me on the matter." The young men behind the speaker had gathered closer.

"If you have none, I would advise you to leave the University grounds immediately."

"And if I don't?"

"Well, for one thing, the University security officers are on their way." He turned to the crowd. "Students," he called out, "we have the right of free speech and freedom of assembly on this campus, but it can be taken away from us if we allow outsiders, without permits, to make unauthorized-"

A heavy hand fell on his shoulder and he winced. He turned around and found it was one of the men Finangelos had referred to as "goons."

The man said, with a heavy accent whose provenance Seldon could not immediately identify, "Get out of here fast. "

"What good will that do?" said Seldon. "The security officers will be here any minute."

"In that case," said Namarti with a feral grin, "there'll be a riot. That doesn't scare us."

"Of course it wouldn't," said Seldon. "You'd like it, but there won't be a riot. You'll all go quietly." He turned again to the students and shrugged off the hand on his shoulder. "We'll see to that, won't we?"

Someone in the crowd shouted, "That's Professor Seldon! He's all right! Don't pound him!"

Seldon sensed ambivalence in the crowd. There would be some, he knew, who would welcome a dust-up with the University security officers, just on general principles. On the other hand, there had to be some who liked him personally and still others who did not know him but who would not want to see violence against a member of the faculty.

A woman's voice rang out. "Watch out, Professor!"

Seldon sighed and regarded the large young men he faced. He didn't know if he could do it, if his reflexes were quick enough, his muscles sturdy enough, even given his prowess at Twisting.

One goon was approaching him, overconfidently of course. Not quickly, which gave Seldon a little of the time his aging body would need. The goon held out his arm confrontationally, which made it easier.

Seldon seized the arm, whirled, and bent, arm up, and then down (with a grunt-why did he have to grunt?), and the goon went flying through the air, propelled partly by his own momentum. He landed with a thump on the outer edge of the platform, his right shoulder dislocated.

There was a wild cry from the audience at this totally unexpected development. Instantly an institutional pride erupted.

"Take them, Prof!" a lone voice shouted. Others took up the cry.

Seldon smoothed back his hair, trying not to puff. With his foot he shoved the groaning fallen goon off the platform.