The noise outside the tent was growing louder as the fighting rolled back in its direction, and once or twice a bullet ripped through the hangings. One that came closer than the others made Diana turn her head and she saw what Ahmed Ben Hassan, absorbed in the fulfilment of his horrible task, had not even thought of--the three big negroes and a dozen Arabs who had stolen in silently from the inner room. For once, in the intoxication of the moment, the Sheik was careless and caught off his guard. Agony leaped into her eyes. The fear of him was wiped out in the fear for him. She tried to warn him, but no sound would come from her throbbing throat, and she crawled nearer to him and touched him. He dropped the dead chief back into the tumbled cushions and looked up swiftly, and at the same moment Ibraheim Omair's men made a rush. Without a word he thrust her behind the divan and turned to meet them. Before his revolver they gave way for a moment, but the burly Nubians behind swept the Arabs forward. Three times he fired and one of the negroes and two Arabs fell, but the rest hurled themselves on him, and Diana saw him surrounded. His strength was abnormal, and for some minutes the struggling mass of men strained and heaved about him. Diana was on her feet, swaying giddily, powerless to help him, cold with dread. Then above the clamour that was raging inside and out she heard Saint Hubert's voice shouting, and with a shriek that seemed to rip her tortured throat she called to him. The Sheik, too, heard, and with a desperate effort for a moment won clear, but one of the Nubians was behind him, and, as Saint Hubert and a crowd of the Sheik's own men poured in through the opening, he brought down a heavy club with crashing force on Ahmed Ben Hassan's head, and as he fell another drove a broad knife deep into his back. For a few minutes more the tramping feet surged backward and forward over the Sheik's prostrate body. Diana tried to get to him, faint and stumbling, flung here and there by the fighting, struggling men, until a strong hand caught her and drew her aside. She strained against the detaining arm, but it was one of Ahmed's men, and she gave in as a growing faintness came over her. Mistily she saw Saint Hubert clear a way to his friend's side, and then she fainted, but only for a few moments. Saint Hubert was still on his knees beside the Sheik when she opened her eyes, and the tent was quite quiet, filled with tribesmen waiting in stoical silence. The camp of Ibraheim Omair had been wiped out, but Ahmed Ben Hassan's men looked only at the unconscious figure of their leader. Saint Hubert glanced up hastily as Diana came to his side. "You are all right?" he asked anxiously, but she did not answer. What did it matter about her? "Is he going to die?" she said huskily, for speaking still hurt horribly.