For a moment the two men looked into each other's eyes and the knowledge of death leaped into Ibraheim Omair's. With the fatalism of his creed he made no resistance, as, with a slow, terrible smile, the Sheik's left hand reached out and fastened on his throat. It would be quicker to shoot, but as Diana had suffered so should her torturer die. All the savagery in his nature rose uppermost. Beside the pitiful, gasping little figure on the rug at his feet there was the memory of six mutilated bodies, his faithful followers, men of his own age who had grown to manhood with him, picked men of his personal bodyguard who had been intimately connected with him all his life, and who had served him with devotion and unwavering obedience. They and others who had from time to time fallen victims to Ibraheim Omair's hatred of his more powerful enemy. The man who was responsible for their deaths was in his power at last, the man whose existence was a menace and whose life was an offence, of whose subtleties he had been trained from a boy to beware by the elder Ahmed Ben Hassan, who had bequeathed to him the tribal hatred of the race of whom Ibraheim Omair was head, and whose dying words had been the wish that his successor might himself exterminate the hereditary enemy. But far beyond the feelings inspired by tribal hatred or the remembrance of the vow made five years ago beside the old Sheik's deathbed, or even the death of his own followers, was the desire to kill, with his bare hands, the man who had tortured the woman he loved. The knowledge of her peril, that had driven him headlong through the night to her aid, the sight of her helpless, agonised, in the robber chief's hands, had filled him with a madness that only the fierce joy of killing would cure. Before he could listen to the clamouring of the new love in his heart, before he could gather up into his arms the beloved little body that he was yearning for, he had to destroy the man whose murders were countless and who had at last fallen into his hands.
The smile on his face deepened and his fingers tightened slowly on their hold. But with the strangling clasp of Ahmed Ben Hassan's hands upon him the love of life waked again in Ibraheim Omair and he struggled fiercely. Crouched on the floor Diana watched the two big figures swaying in mortal combat with wide, fearful eyes, her hands still holding her aching throat. Ibraheim Omair wrestled for his life, conscious of his own strength, but conscious also of the greater strength that was opposed to him. The Sheik let go the hold upon his throat and with both arms locked about him manoeuvred to get the position he required, back to the divan. Then, with a wrestler's trick, he swept Ibraheim's feet from under him and sent his huge body sprawling on to the cushions, his knee on his enemy's chest, his hands on his throat. With all his weight crushing into the chief's breast, with the terrible smile always on his lips, he choked him slowly to death, till the dying man's body arched and writhed in his last agony, till the blood burst from his nose and mouth, pouring over the hands that held him like a vice.
Diana's eyes never left the Sheik's face, she felt the old paralysing fear of him rushing over her, irresistibly drowning for the moment even the love she had for him. She had seen him in cruel, even savage moods, but nothing that had ever approached the look of horrible pleasure that was on his face now. It was a revelation of the real man with the thin layer of civilisation stripped from him, leaving only the primitive savage drunk with the lust of blood. And she was afraid, with a shuddering horror, of the merciless, crimson-stained hands that would touch her, of the smiling, cruel mouth that would be pressed on hers, and of the murderous light shining in his fierce eyes. But for the dying wretch expiating his crimes so hideously she felt no pity, he was beyond all sympathy. She had seen him murder wantonly, and she knew what her own fate would have been if Ahmed Ben Hassan had not come. And the retribution was swift. The Sheik was being more merciful to him than the robber chief had been to many, a few moments of agony instead of hours of lingering torture.
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.
"I don't know—but we must get away from here. I need more appliances than I have with me, and we are too few to stay and risk a possible attack if there are others of Ibraheim Omair's men in the neighbourhood."
Diana looked down on the wounded man fearfully. "But the ride—the jolting," she gasped.
"It has got to be risked," replied Saint Hubert abruptly.