After that part of the business was completed, the additional torpedoes were cautiously slung inboard and passed down a long, narrow hatchway. In this operation the Turkish troop took no part. The handling and stowage was performed entirely by the submarine's crew. In the midst of these operations the seaman sentry began signalling frantically. Summoned from below, von Birmitz hastily appeared, followed by his guest and the other officers of the submarine who were not engaged In superintending the work. Somewhat ungracefully von Elbing leapt ashore, landing on his hands and knees. He shouted an order to the men of the convoy, hurried up the path, and was soon lost to sight. Meanwhile the crew of the submarine were hurriedly securing hatches, and lowering the disappearing guns and the wireless mast. In their haste they were unable to pass below four torpedoes lying on deck. These they fastened to ring-bolts by means of stout ropes, then at the Lieutenant-Commander's orders the crew cast off the hawsers and scurried-below. Twenty seconds later the submarine sank in twelve fathoms of water, till from their elevated position the two British officers could just discern her outlines as she glided towards the centre of the creek. "They've smelt a rat," declared Dick. "One of our destroyers, by Jove!" added Farnworth, as a four-black-funnelled, black-hulled craft proudly displaying the white ensign could be seen beyond the barrier of rock that almost closed the narrow entrance. "We must attract their attention, regardless of the consequences," declared Dick, and springing to his feet he waved the silk handkerchief that had previously rendered good service as an insulator to von Eitelheimer's scabbard. "Let's fire our revolvers, sir," suggested the midshipman. "Can but try," replied Dick recklessly. "Only I'm afraid they won't hear; the wind's the wrong way." Both men emptied their revolvers In the air, but to their intense disappointment the destroyer held on her course without attempting to reply, and presently she was lost to sight behind the rising ground. "Think that rotten submarine will have a go at her, sir?" asked Farnworth. "Hardly likely. She'll want to try her luck at bigger game," replied Dick. "But the point is this: we must do our level best to warn our people--and as soon as we possibly can. It will take the German submarine another five hours at least to prepare for sea, and those fellows won't reappear in a hurry until the coast is perfectly clear. The question is, did the troops belonging to the convoy hear our shots? If so, we must look out for ourselves." "What do you propose, sir?"