"Banquet?" Duncan was puzzled.

Tamalane swung completely around in her swivel seat and looked directly into his eyes. Her steely teeth glittered in the bright lights. "History has seldom been good to those who must be punished," she said.

Duncan flinched at the word "history." It was one of Tamalane's signals. She was going to teach a lesson, another boring lesson.

"Bene Gesserit punishments cannot be forgotten."

Duncan focused on Tamalane's old mouth, sensing abruptly that she spoke out of painful personal experience. He was going to learn something interesting!

"Our punishments carry an inescapable lesson," Tamalane said. "It is much more than the pain."

Duncan sat on the floor at her feet. From this angle, Tamalane was a black-shrouded and ominous figure.

"We do not punish with the ultimate agony," she said. "That is reserved for a Reverend Mother's passage through the spice."

Duncan nodded. Library records referred to "spice agony," a mysterious trial that created a Reverend Mother.

"Major punishments are painful, nonetheless," she said. "They are also emotionally painful. Emotion evoked by punishment is always that emotion we judge to be the penitent's greatest weakness and thus we strengthen the punished."

Her words filled Duncan with unfocused dread. What were they doing to his guards? He could not speak but there was no need. Tamalane was not finished.

"The punishment always ends with a dessert," she said and she clapped her hands against her knees.

Duncan frowned. Dessert? That was part of a banquet. How could a banquet be punishment?

"It is not really a banquet but the idea of a banquet," Tamalane said. One clawlike hand described a circle in the air. "The dessert comes something totally unexpected. The penitent thinks: Ahhh, I have been forgiven at last! You understand?"

Duncan shook his head from side to side. No, he did not understand.

"It is the sweetness of the moment," she said. "You have been through every course of a painful banquet and come out at the end to something you can savor. But! As you savor it, then comes the most painful moment of all, the recognition, the understanding that this is not pleasure-at-the-end. No, indeed. This is the ultimate pain of the major punishment. It locks in the Bene Gesserit lesson."

"But what will she do to those guards?" The words were wrenched from Duncan.

"I cannot say what the specific elements of the individual punishments will be. I have no need to know. I can only tell you it will be different for each of them."

Tamalane would say no more. She returned to laying out the next day's lessons. "We will continue tomorrow," she said, "teaching you to identify the sources of the various accents of spoken Galach."

No one else, not even Teg or Patrin, would answer his questions about the punishments. Even the guards, when he saw them afterward, refused to speak of their ordeals. Some reacted curtly to his overtures and none would play with him anymore. There was no forgiveness among the punished. That much was clear.

Damn Schwangyu! Damn Schwangyu!...

That was where his deep hatred of her began. All of the old witches shared in his hatred. Would the new young one be the same as the old ones?

Damn Schwangyu!

When he demanded of Schwangyu: "Why did you have to punish them?" Schwangyu took some time before answering, then: "It is dangerous for you here on Gammu. There are people who wish you harm."

Duncan did not ask why. This was another area where his questions were never answered. Not even Teg would answer, although Teg's very presence emphasized the fact of that danger.

And Miles Teg was a Mentat who must know many answers. Duncan often saw the old man's eyes glisten while his thoughts went far away. But there was no Mentat response to such questions as:

"Why are we here on Gammu?"

"Who do you guard against? Who wants to harm me?"

"Who are my parents?"

Silence greeted such questions or sometimes Teg would growl: "I cannot answer you."

The library was useless. He had discovered this when he was only eight and his chief instructor was a failed Reverend Mother named Luran Geasa - not quite as ancient as Schwangyu but well along in years, more than a hundred, anyway.

At his demand, the library produced information about Gammu/Giedi Prime, about the Harkonnens and their fall, about various conflicts where Teg had commanded. None of those battles came through as very bloody; several commentators referred to Teg's "superb diplomacy." But, one datum leading to another, Duncan learned about the time of the God Emperor and the taming of his people. This period commanded Duncan's attention for weeks. He found an old map in the records and projected it on the focus wall. The commentator's superimpositions told him that this very Keep had been a Fish Speaker Command Center abandoned during the Scattering.

Fish Speakers!

Duncan wished then that he had lived during their time, serving as one of the rare male advisors in the female army that had worshiped the great God Emperor.

Oh, to have lived on Rakis in those days!

Teg was surprisingly forthcoming about the God Emperor, calling him always "the Tyrant." A library lock was opened and information about Rakis came pouring out for Duncan.

"Will I ever see Rakis?" he asked Geasa.

"You are being prepared to live there."

The answer astonished him. Everything they taught him about that faraway planet came into new focus.

"Why will I live there?"

"I cannot answer that."

With renewed interest, he returned to his studies of that mysterious planet and its miserable Church of Shai-hulud, the Divided God. Worms. The God Emperor had become those worms! The idea filled Duncan with awe. Perhaps here was something worthy of worship. The thought touched a chord in him. What had driven a man to accept that terrible metamorphosis?

Duncan knew what his guards and the others in the Keep thought about Rakis and the core of priesthood there. Sneering remarks and laughter told it all. Teg said: "We'll probably never know the whole truth of it, but I tell you, lad, that's no religion for a soldier."

Schwangyu capped it: "You are to learn about the Tyrant but you are not to believe in his religion. That is beneath you, contemptible."

In every spare study moment Duncan pored over whatever the library produced for him: the Holy Book of the Divided God, the Guard Bible, the Orange Catholic Bible and even the Apocrypha. He learned about the long defunct Bureau of the Faith and "The Pearl that IS the Sun of Understanding."

The very idea of the worms fascinated him. Their size! A big one would stretch from one end of the Keep to the other. Men had ridden the pre-Tyrant worms but the Rakian priesthood forbade this now.

He found himself gripped by accounts from the archeological team that had found the Tyrant's primitive no-chamber on Rakis. Dar-es-Balat, the place was called. The reports by Archeologist Hadi Benotto were marked "Suppressed by orders of the Rakian Priesthood." The file number on the accounts from Bene Gesserit Archives was a long one and what Benotto revealed was fascinating.

"A kernel of the God Emperor's awareness in each worm?" he asked Geasa.

"So it's said. And even if true, they are not conscious, not aware. The Tyrant himself said he would enter an endless dream."

Each study session occasioned a special lecture and Bene Gesserit explanations of religion until finally he encountered those accounts called "The Nine Daughters of Siona" and "The Thousand Sons of Idaho."

Confronting Geasa, he demanded: "My name is Duncan Idaho, too. What does that mean?"

Geasa always moved as though standing in the shadow of her failure, her long head bent forward and her watery eyes aimed at the ground. The confrontation occurred near evening in the long hall outside the practice floor. She paled at his question.