The words were scarcely out of his mouth before the pony reared suddenly and then fell forward, throwing him over its head. At the same moment Mabel heard the sound of another horse’s feet behind her, and before she could look round some one dealt Roy a smart blow on the flank. She felt him rise for a leap, and was conscious that his heels touched something as he went over. It seemed a miracle that he did not land upon his head, but as it was, the shock, when his hoofs clattered down amongst the stones, nearly unseated Mabel, and before she could collect her scattered senses three mounted men appeared, as if by magic, from among the rocks on either hand. Before she had time to do more than realise that they wore turbans, a fourth man pushed up from behind, and seizing her bridle, forced Roy into a canter. She had a momentary vision of Brendon, his face streaming with blood, flinging himself between her horse and her captor’s, and trying to wrest the bridle from him; she saw the sweep of steel in the red light as one of the other men turned round; saw Brendon cut down by a murderous blow from a tulwar. It was all over in a moment, and before she could even scream, she and her captors were out of the gorge and riding swiftly to the right, away from Alibad and safety. From the fatal spot they had left there came faintly to her ears the sound of several shots.

The sound reached other ears as well as Mabel’s. Mr Burgrave and Fitz, riding leisurely, as they had been when Mabel and her cavalier left them behind in their race, started when they heard it, and put spurs to their horses. Entering the gorge they could see nothing but dark rocks and lurid sky. No! what was that?—a bright flash, followed by another report, coming from a spot close to the ground at the farther end. Riding headlong down the ravine, regardless of the shifting boulders, they distinguished at last the form of Brendon, his light clothes dyed with blood. He was dragging himself painfully towards them, holding his discharged revolver in his left hand.

“They’ve got Miss North!” he gasped, as they neared him.

With a sharp exclamation Mr Burgrave dug his spurs deeper and dashed on, but Fitz, catching the look of agony on Brendon’s face, drew rein for a moment.

“FITZ CAUGHT THE LOOK OF AGONY IN BRENDON’S FACE”

“She’s riding—a troop-horse. Yell to him—to ‘Halt!’” came in broken sentences. “And look out. There’s a—rope.”

Even as he sank down exhausted from loss of blood, there was a crash in front. The Commissioner and his horse had gone down in a heap, marking only too accurately the position of the rope. Fitz galloped forward, his pony taking the obstacle like a bird.

“Ride on, for Heaven’s sake! Never mind me!” came in a despairing shout from the man who lay helpless under the struggling horse, and Fitz obeyed. He was out of the gorge now, and could see far away to the right the dark moving mass which represented the object of his pursuit. Ramming in his spurs, he followed at breakneck speed, his whole soul absorbed in the savage determination to catch up the robbers and their prey. Whether he and Sheikh lived or died, they must reach that goal. Thundering on, his eyes fixed upon his quarry, he perceived presently, with a fierce joy, that it was becoming clearer to his view. He was gaining! Now he could distinguish the forms of the men and their horses, and presently he was able to assure himself that the wiry little native steeds were undoubtedly handicapped by the necessity of accommodating their pace to that of the heavier Roy. That the robbers he was pursuing were four to one did not occur to Fitz, even in face of the ominous fact that they made no attempt to interfere with him, too confident in their superior numbers to take the trouble to separate and cut him off. The moment that he felt sure of his advantage, his plan was ready, formed complete in his mind, and without any volition of his own, his revolver was in his hand, cocked, the moment after. As he diminished the distance between himself and the robbers, he saw that they were no longer in a compact body. The three unencumbered riders were leading, and Mabel and the man who held her bridle came after. Mabel had recovered her presence of mind by this time. She was striking furiously with her whip at the hand which gripped her rein, in the hope of forcing the robber to loose his hold, but in vain. He could not spare a hand to snatch away the whip, but his grasp upon the bridle never relaxed. Suddenly a voice sounded in her ears. Standing in his stirrups, Fitz put all the power of his lungs into the one word, “Halt!” and at the well-known shout Roy stopped dead, his feet firmly planted together. The shock dragged the robber from his saddle, and his own horse, terrified, continued its headlong career. Still grasping Mabel’s bridle with his left hand, he drew his tulwar and sprang at Fitz. A bullet from the ready revolver met him as he came, and he fell forward, the tulwar dropping harmless from his fingers, which gripped for a moment convulsively at the sand under Sheikh’s hoofs.

“Quick! Get behind me! Crouch between the horses!” cried Fitz to Mabel, urging the panting Sheikh in front of Roy. The three men in front had faced round, and seemed to be meditating a charge, but they were without firearms, and Fitz, standing behind his pony, had them covered if they should approach. Left to themselves, they might have distracted his attention by coming at him from different directions, and taken him in the rear, but the other members of the party had now emerged from the gorge, and were riding down on them with shouts. Prudent counsels prevailed, and they turned their horses’ heads again, and rode off into the gathering darkness, leaving the victorious Fitz with two trembling, sweating horses, and Mabel, crouched on the sand, clutching wildly at his feet. She tried to speak as she looked up at him, but no words would come, and only a hoarse scream issued from her lips. The sight of her utter prostration almost unmanned him.