The magic of the desert night had closed about them. Cairo, friends,--civilization as she knew it--were left far behind. She, an unbeliever, was in the heart of the trackless wastes with a man whose word was more than law. And yet, he was her slave! "I shall ask nothing of you until you shall love me," he promised. "You shall draw your curtains, and until you call, you shall go undisturbed." And she believed him!