"It's so radioactive that nothing can live within a hundred kilometers," said Peter. "And you know what the explosion did to Al-hajar Al-aswad."

"The stone was not sacred in itself," said Alai, "and Muslims never worshipped it. We only used it as a marker to remember the holy covenant between God and his true followers. Now its molecules are powdered and spread over the whole Earth, as a blessing to the righteous and a curse to the wicked, while we who follow Islam still remember where it was, and what it marked, and bow toward that place when we pray."

It was a sermon he had surely said many times before.

"Muslims suffered more than anyone in those dark days," said Peter. "But that is not what most people remember. They remember bombs that killed innocent women and children, and fanatical self-murderers who hated any freedom except the freedom to obey the very narrowest interpretation of Shari'ah."

He could see Alai stiffen. "I make no judgment myself," Peter immediately said. "I was not alive then. But in India and China and Thailand and Vietnam, there are people who fear that the soldiers of Islam did not come as liberators, but as conquerors. That they'll be arrogant in victory. That the Caliphate will never allow freedom to the people who welcomed him and aided him in overcoming the Chinese conquerors."

"We do not force Islam on any nation," said Alai, "and those who claim otherwise are liars. We ask them only to open their doors to the teachers of Islam, so the people can choose."

"Forgive my confusion, then," said Peter. "The people of the world see that open door, and notice that no one passes through it except in one direction. Once a nation has chosen Islam, then the people are never allowed to choose anything else."

"I hope I do not hear the echo of the Crusades in your voice."

The Crusades, thought Peter, that old bugbear. So Alai really has joined himself to the rhetoric of fanaticism. "I only report to you what is being said among those who are seeking to ally against you in war," said Peter. "That war is what I hope to avoid. What those old terrorists tried, and failed, to achieve—a worldwide war between Islam and everyone else—may now be almost upon us."

"The people of God are not afraid of the outcome of such a war," said Alai.

"It's the process of the war that I hope to avoid," said Peter. "Surely the Caliph also seeks to avoid needless bloodshed."

"All who die are at the mercy of God," said Alai. "Death is not the thing to fear most in life, since it comes to all."

"If that's how you feel about the carnage of war," said Peter, "then I've wasted your time." Peter leaned forward, preparing to rise to his feet.

Petra put her hand on his thigh, pressing down, urging him to remain seated. But Peter had had no intention of leaving.

"But." said Alai.

Peter waited.

"But God desires the willing obedience of his children, not their terror."

It was the statement Peter had been hoping for.

"Then the murders in India, the massacres—"

"There have been no massacres."

"The rumors of massacre," said Peter, "which seem to be supported by smuggled vids and eyewitness accounts and aerial photographs of the alleged killing fields—I am relieved that such things would not be the policy of the Caliphate."

"If someone has slain innocents for no other crime than believing in the idols of Hinduism and Buddhism, then such a murderer would be no Muslim."

"What the people of India wonder—"

"You do not speak for the people of any place except a small compound in Ribeirão Preto," said Alai.

"What my informants in India tell me that the people of India wonder is whether the Caliph intends to repudiate and punish such murderers or merely pretend they didn't happen? Because if they cannot trust the Caliph to control what is done in the name of Allah, then they will defend themselves."

"By piling stones in the road?" asked Alai. "We are not the Chinese, to be frightened by stories of a 'Great Wall of India.' "

"The Caliph now controls a population that has far more non-Muslims than Muslims," said Peter.

"So far," said Alai.

"The question is whether the proportion of Muslims will increase because of teaching, or because of the slaughter and oppression of unbelievers?"

For the first time, Alai turned his head, and then his body, to face them. But it was not Peter he looked at. He only had eyes for Petra.

"Don't you know me?" he said to her.

Peter wisely did not answer. His words were doing their work, and now it was time for Petra to do what he had brought her to do.

"Yes," she said.

"Then tell him," said Alai.

"No," she said.

Alai sat in wounded silence.

"Because I don't know whether the voice I hear in this garden is the voice of Alai or the voice of the men who put him into office and control who may or may not speak to him."

"It is the voice of the Caliph," said Alai.

"I've read history," said Petra, "and so have you. The Sultans and Caliphs were rarely anything but holy figureheads, when they allowed their servants to keep them within walls. Come out into the world, Alai, and see for yourself the bloody work that's being done in your name."

They heard footsteps, loud ones, many footsteps, and soldiers trotted out of concealment. Within moments, rough hands held Petra and were dragging her away. Peter did not raise a hand to interfere. He only faced Alai, staring at him, demanding silently that he show who ruled in his house.

"Stop," said Alai. Not loudly, but clearly.

"No woman speaks to the Caliph like that!" shouted a man who was behind Peter. Peter did not turn. It was enough to know that the man had spoken in Common, not in Arabic, and that his accent bore the marks of a superb education.

"Let go of her," Alai said to the soldiers, ignoring the man who had shouted.

There was no hesitation. The soldiers let go of Petra. At once she came back to Peter's side and sat down. Peter also sat down. They were spectators now.

The man who had shouted, dressed in the flowing robes of an imitation sheik, strode up to Alai. "She uttered a command to the Caliph! A challenge! Her tongue must be cut out of her mouth."

Alai remained seated. He said nothing.

The man turned to the soldiers. "Take her!" he said.

The soldiers began to move.

"Stop," said Alai. Quietly but clearly.

The soldiers stopped. They looked miserable and confused.

"He doesn't know what he's saying," the man said to the soldiers. "Take the girl and then we'll discuss it later."

"Do not move except at my command," said Alai.

The soldiers did not move.

The man faced Alai again. "You're making a mistake," he said.

"The soldiers of the Caliph are witnesses," said Alai. "The Caliph has been threatened. The Caliph's orders have been countermanded. There is a man in this garden who thinks he has more power in Islam than the Caliph. So the words of this infidel girl are correct. The Caliph is a holy figurehead, who allows his servants to keep him within walls. The Caliph is a prisoner and others rule Islam in his name."

Peter could see in the man's face that he now realized that the Caliph was not just a boy who could be manipulated.

"Don't go down this road," he said.

"The soldiers of the Caliph are witnesses," said Alai, "that this man has given a command to the Caliph. A challenge. But unlike the girl, this man has ordered armed soldiers, in the presence of the Caliph, to disobey the Caliph. The Caliph can hear any words without harm, but when soldiers are ordered to disobey him, it does not require an imam to explain that treason and blasphemy are present here."

"If you move against me," the man said, "then the others—"

"The soldiers of the Caliph are witnesses," said Alai, "that this man is part of a conspiracy against the Caliph. There are 'others.' "