With a bound he went along the deck till he was within a yard of the glowing end of that cigar and within striking distance of the Commander. Throwing himself upon the astonished Turk, he gripped him with both arms, and then hurled himself and his captive over the rail of the vessel. At the same moment Geoff pushed his dinghy from under the stern, and, taking his paddle up, waited for the appearance of the two who had so suddenly been immersed in the water. It was perhaps five seconds later when two heads bobbed up quite close to him, and he heard one of the two gasp and splutter. Giving a swift stroke with his paddle, he dropped it in the bottom of the dinghy, and, stretching out a hand, gripped the hair of one of the figures. [Illustration: "PHILIP HURLED HIMSELF AND HIS CAPTIVE OVER THE RAIL OF THE VESSEL"] "Let go; it's me! Get hold of the old beggar!" Philip was quite indignant, and, to tell the truth, the grip which Geoff had inadvertently fastened upon his chum's head of hair had been excessively painful; but in a moment he had transferred it to the shoulder of the Turk, and had drawn him close to the side of the dinghy. The stout and somewhat elderly commander was puffing like a grampus, and spurting water out of his mouth, while he wriggled and struggled to free himself from the one who had thrown his arms round him. Thoroughly scared by the unexpected assault which had been made upon him, and deprived utterly of speech by his sudden immersion in the river, he yet managed to get rid of the water which filled his mouth, and to give vent to a shout, a subdued shout, it is true, but one which easily reached the ears of the sentry aboard the steamer. Indeed, that individual had already halted on his beat, and was staring over the side into the Euphrates. He had felt the sudden tremor which had gone down the decks of the steamer as the cable parted, and there was now a curious movement, a strange bobbing of the ship, which was so different from her placid stillness of a moment or so earlier that he became suspicious, almost alarmed, and it required only the call of his Commander to cause him to shout at the top of his voice, to run to the companion-way which led to the quarters of the crew, and to beat upon it with the butt of his rifle. In fact, long before Geoff and Philip had accomplished their purpose and completed the capture of the Commander, men were pouring up on to the deck of the steamer, shouts were startling the air, while two or three of the men fired their rifles and thus increased the confusion. Geoff leaned over the side of the dinghy, threatening to capsize it, and, placing his lips to the ear of the thoroughly startled Turk, spoke to him sternly. "You are a captive--a prisoner," he told him. "Shout again, make the smallest show of resistance, and we shall push you under the water; but if you are quiet, and come aboard this boat readily, your life will be saved on certain conditions. You agree?"