"Anyhow, I'm not going to wait till those chaps come up to investigate," added Dick, referring to the still invisible riflemen. "So here's off! Keep to the dip in the ground and avoid the sand. We don't want to leave our tracks." Breaking into a steady run the fugitives hurried away from the direction of the interrupters of their peace of mind. Already the monoplane was a mere speck in the distance. "Take cover!" hissed Dick breathlessly. "They're on our track." Once again the two comrades sought shelter in a thicket. They were not a minute too soon, for amid a cloud of dust about fifty Turkish irregulars galloped madly down the path. They were armed with Mauser and Mannlicher rifles and carbines, and in addition a regular armoury of revolvers and knives, while several wore long curved swords. Some of them had been wounded by the explosion of the bomb, and rode with the blood streaming down their faces. Yet each man urged his steed to its utmost capacity as if with a set purpose, and hardly looking to the right or left they passed by, leaving only a cloud of suffocating dust that hung listlessly in the still, hot air. "I thought they were after us," said Dick, after a safe interval had elapsed, "but I think I'm mistaken. They've some other little game on." "Perhaps they didn't see us at all," suggested Farnworth. "Pretty well certain they didn't, for by this time all the Turkish troops in the district must have heard of our escape and of our disguises. Well, let's carry on." For several hours they plodded wearily along the steep mountain path, their senses keenly on the alert, since they now knew that cavalry were in the vicinity. It was somewhat disconcerting to know that a body of irregulars lay between them and the coast, but both Dick and the midshipman were curious to know why these horsemen had hurried in the direction of Kum Kale, since they were not sufficiently numerous to constitute a danger to any considerable force. Happening to look over his shoulder, the Sub saw that another body of men was overtaking them. It was a mixed column of horse and foot, accompanied by wagons--in fact a small convoy. "If we strike away to the right we'll miss them easily, sir," suggested the midshipman. Dick shook his head. "We'll only get 'bushed' at night, that is if the stars are hidden," he said. "Besides, we're pretty well done up; so we'll lie low and let these fellows pass. I'm rather anxious to see what they are up to." The convoy was still a long way off, the advance-guard being quite three miles from where the officers stood. It was slowly making its way up the mountain side, the moving line resembling a huge snake as it wound along the intricate path. "We're safe enough here," announced Dick, when they had taken up their position between two fantastically-shaped rocks about fifty yards from the road.