Nadir Sharif bowed, and in moments he and the Rajputs had melted into the moonlight.

Hawksworth watched them leave with a mounting sense of disquiet. Then he turned and peered past the hooded figure, who stood waiting. The mosque looked empty, a cavern of flickering shadows against intricate plaster calligraphy. He unbuckled the sheath of his sword and passed it to the man as he kicked away his loose slippers. The man took the sword without a word, examined it for a moment as though evaluating its workmanship, then turned to lead the way.

They moved silently across the polished stone floor, past enormous columns that disappeared into the darkness of the vaulted space above them. Hawksworth relished the coolness of the stones against his bare feet, then ducked barely in time to avoid a hanging lamp, extinguished now, its polished metalwork almost invisible against the gloom.

Ahead a lamp flickered through the dark. They passed beneath it, then stopped at a closed door at the rear of the mosque. The man spoke a word Hawksworth did not understand and the door was swung open from the inside, revealing an illuminated passageway.

Four men were waiting. As Hawksworth and his guide passed through, the door closed behind them and the men silently drew around.

The passageway was long, freshly plastered, and floored in marble mosaic. It was cool, as though immune from the heat of the day, and scented faintly with rose incense that had been blended with the oil in the hanging lamps.

At the end of the corridor was another stairway, again of white marble, and as they moved up its steps the man who had greeted Hawksworth extinguished his lamp with a brass cup he carried.

Beyond the stair was another corridor, then another door that opened as they approached. Hawksworth realized they were in an upper story of a large building directly behind the mosque. They passed through the door and emerged into a room facing a balcony that overlooked the abandoned square below.

In the center of the room was a raised dais, covered with a thick Persian carpet. The man who had been Hawksworth's guide moved to the dais, mounted it, and seated himself. With a flourish he dropped his white hood and the wrap that had been around him. Hawksworth realized with a shock that his long white hair streamed to his waist. He was naked save for a loincloth. He gestured for Hawksworth to sit, indicating a bolster.

"Welcome, English." He waited until the surprise had registered in Hawksworth's face. "We've been expecting you, but not quite so soon."