“Even if Siona fails?” Idaho asked.

“Especially then!”

“How did he test you?” Idaho asked.

“He showed me a small glimpse of what it’s like to be the God Emperor.”

“And?”

“I saw as much as I’m capable of seeing.”

Hwi’s hand tightened convulsively in Idaho’s.

“Then it’s true that you were a rebel once,” Idaho said.

“I began with love and prayer,” Moneo said. “I changed to anger and rebellion. I was transformed into what you see before you. I recognize my duty and I do it.”

“What did he do to you?” Idaho demanded.

“He quoted to me the prayer of my childhood: ‘I give my life in dedication to the greater glory of God.’ ” Moneo spoke in a musing voice.

Idaho noted Hwi’s stillness, her stare fixed on Moneo’s face. What was she thinking?

“I admitted that this had been my prayer,” Moneo said. “And the God Emperor asked me what I would give up if my life were not enough. He shouted at me: ‘What is your life when you hold back the greater gift?’ ”

Hwi nodded, but Idaho felt only confusion.

“I could hear the truth in his voice,” Moneo said.

“Are you a Truthsayer?” Hwi asked.

“In the power of desperation, yes,” Moneo said. “But only then. I swear to you he spoke truth to me.”

“Some of the Atreides had the power of Voice,” Idaho muttered.

Moneo shook his head. “No, it was truth. He said to me: ‘I look at you now and if I could shed tears, I would. Consider the wish to be the act!’ ”

Hwi rocked forward, almost touching the table. “He cannot cry?”

“Sandworms,” Idaho whispered.

“What?” Hwi turned toward him.

“Fremen killed sandworms with water,” Idaho said. “From the drowning they produced the spice essence for their religious orgies.”

“But the Lord Leto is not yet a sandworm entire,” Moneo said.

Hwi rocked back on to her cushion and looked at Moneo.

Idaho pursed his lips in thought. Did Leto have the Fremen prohibition against tears, then? How awed the Fremen had always been about such a waste of moisture! Giving water to the dead.

Moneo addressed himself to Idaho: “I had hoped you could be brought to an understanding. The Lord Leto has spoken. You and Hwi must separate and never see each other again.”

Hwi removed her hand from Idaho’s. “We know.”

Idaho spoke with resigned bitterness: “We know his power.”

“But you do not understand him,” Moneo said.

“I want nothing more than that,” Hwi said. She put a hand on Idaho’s arm to silence him. “No, Duncan. Our private desires have no place here.”

“Maybe you should pray to him,” Idaho said.

She whirled and looked at him, staring and staring until Idaho lowered his gaze. When she spoke, her voice carried a lilting quality that Idaho had never heard there before. “My Uncle Malky always said the Lord Leto never responded to prayer. He said the Lord Leto looked on prayer as attempted coercion, a form of violence against the chosen god, telling the immortal what to do: Give me a miracle, God, or I won’t believe in you!”