A tall man with one eye a glittering blue and the other a blank white, a scimitar in a jeweled scabbard thrust through the embroidered sash around his waist, came forward.

A silence fell over the crowd of slave buyers, followed by whispers. The one-eyed warrior paid the price asked in gold dinars and without haggling. And when the slaver fondled David's loins one last time as he covered him with a ragged tunic, the warrior seized the slaver by the throat with one hand, forcing him to his knees, and squeezed till he collapsed unconscious in the dust of the marketplace.

David was almost mad with terror as the one-eyed warrior took him to his mansion beside a lake in the center of El Kahira. But the tall man spoke kindly to him and treated him decently. Amazingly, he could speak French, David's language, though with a strange and heavy accent. He told David that he was called Baibars al-Bunduqdari, Baibars the Crossbowman. He was an emir of the Bhari Mamelukes, which meant, he said, "slaves of the river." But though the Mamelukes were slaves, they were also great and powerful warriors.

Baibars gave David a new name—Daoud—and told him that he had selected him to be a Mameluke. He explained in a firm but kindly way that Daoud did have a choice but that the alternative was a life of unrelieved wretchedness as a ghulman, a menial slave. As a Mameluke, Daoud would be set free when his training was complete, and he could win riches and glory and be a warrior for God and his emir.

"I have long watched for such a one as you," Baibars said, "who could look like a Christian but have the mind and heart of a Mameluke. One like you could be a great weapon against the enemies of the faith."

But your faith is not my faith, David, who was to be called Daoud, thought, not daring to speak, and your enemies are not my enemies.

His longing to please this man, the first Muslim to treat him with respect, struggled as the years passed with his memories of a Christian childhood. Daoud underwent the training of a Mameluke, and Baibars watched him closely. Daoud accepted Islam and took the common surname of a convert, ibn Abdallah. He took naturally to the life of a warrior and grew in strength and skill.

Year by year Baibars, too, became more powerful. At last he made himself sultan of El Kahira, ruler of an empire that stretched from North Africa to Syria. Daoud's hand had wielded the flame dagger of the Hashishiyya that ended the previous sultan's life.

Now, having raised Daoud, trained him as a Mameluke, and educated him in statecraft, having sent him to learn wisdom from the Sufi and terror from the Hashishiyya, having given him a new name and a new faith, Baibars had sent Daoud into the Christian country called Italy.