She smiled and laid a hand on his arm. "Are you here to avail yourself?"

"First, I want to send a message to my master. Then that."

"Of course. Come with me."

He followed her up the marble steps, idly wondering if her rump looked as huge with her gown off, and whether Cardinal Ugolini actually did go to bed with her, and if so how he could be aroused by such a grossly fat woman. Not that Ugolini, with his rodent's face, was any more attractive than his mistress.

The stairs to the third floor were narrower and darker and more winding, and after that there was a maze of corridors to negotiate. Even with the help of the Sufi mental training for warriors, Daoud knew he would never be able to find his way here again.

Tilia gestured to a trapdoor. "Push that back for me."

Daoud climbed a ladder, raised the heavy door, and found himself on a walkway built over the centerline of a roof. It was wide enough for two men to stand side by side, but there was no railing, and on either side the red-tiled roof sloped down sharply. The walkway led to a small structure made of wooden slats, from which Daoud heard fluttering and cooing. The sight of the dovecote and the sound of the warbling pigeons reminded Daoud of the rooftops of El Kahira, and for a moment he yearned for a sight of the Bhar al-Nil flowing swiftly past the city or the sound of the muezzin's call to prayer.

He stopped to look around. This was an excellent vantage point. From here he could see that Tilia's mansion was actually shaped like Ugolini's, a hollow square around an atrium. The difference was that her establishment was made from the joining of many houses that had once been separate. From here he could also see most of Orvieto. Rows and rows of peaked roofs glowed warm red and orange in the sunset. Off in the northwest corner of the city bulked the great roof of the cathedral, like a galley among rowboats. To the south, the six square turrets of the pope's palace. And on all sides of the city, the rounded green hills of this part of Italy called Umbria.

"The piccioni fly to Napoli," said Tilia breathlessly behind him. Daoud was amazed at how she had managed to climb so many steps and finally a ladder. There must be muscle under all that fat.

He pulled open the whitewashed wooden door of the dovecote. His entry set off a furious flapping of wings, unleashing a storm of feathers in the dark enclosure. The smell of pigeon droppings was heavy in the warm air. He began breathing through his mouth to keep the odor out of his nose. Tilia pushed past him, whistling and clucking to the pigeons and calming them down.