He looked at her with a smile of amusement at her pertinacity. "Inquisitive one! I sing because I am glad. Because my friend is coming." "Your friend?" "Yes, by Allah! The best friend a man ever had. Raoul de Saint Hubert." She flashed a look at the bookcase with a jerk of her head, and he nodded. "Coming here?" she queried, and the dismay she felt sounded in her voice. He frowned in quick annoyance at her tone. "Why not?" he said haughtily. "No reason," she murmured, sinking down among the cushions again and picking up the magazine from the floor. The advent of a stranger--a European--was a shock, but she felt that the Sheik's eyes were on her and she determined to show no feeling in his presence. "What time will you be ready to ride?" she asked indifferently, with a simulated yawn, flirting over the pages. "I can't ride with you to-day. I am going to meet Saint Hubert. His courier only came an hour ago. It is two years since I have seen him." Diana slipped off the couch and went to the open doorway. A detachment of men were already waiting for him, and, close by the tent, Shaitan of the ugly temper was biting and fidgeting in the hands of the grooms. She scowled at the beautiful, wicked creature's flat-laid ears and rolling eyes. She would have backed him fearlessly herself if the Sheik had let her, but she was nervous for him every time he rode the vicious beast. No one but the Sheik could manage him, and though she knew that he had perfect mastery over the horse, she never lost the feeling of nervousness, a sensation the old Diana had never, never experienced, and she wished to-day that it had been any other horse but Shaitan waiting for him. She went back to him slowly. "It makes my head ache, to stay in all day. May Gaston not ride with me?" she asked diffidently, her eyes anywhere but on his face. He had not allowed her to ride with any one except himself since her attempted escape, and to her tentative suggestions that the rides with the valet might be resumed he had given a prompt refusal. He hesitated now, and she was afraid he was going to refuse again, and she looked up wistfully. "Please, Monseigneur," she whispered humbly. He looked at her for a moment with his chin squarer than usual. "Are you going to run away again?" he asked bluntly. Her eyes filled slowly with tears, and she turned her head away to hide them. "No, I am not going to run away again," she said very low. "Very well, I will tell him. He will be delighted, _le bon_ Gaston. He is your very willing slave in spite of the trick you played him. He has a beautiful nature, _le pauvre diable_. He is not an Arab, eh, little Diane?" The mocking smile was back in his eyes as he turned her face up to his in the usual peremptory way. Then he held out the revolver he had been cleaning with sudden seriousness. "I want you to carry this always now when you ride. Ibraheim Omair is still in the neighbourhood." She looked at it blankly. "But----" she stammered.