In another twenty minutes the enemy ceased firing and again submerged. Captain Campbell had now no resource left but his torpedoes, of which he carried two--one on each side. He fired the first as the U-boat steamed past the port side at 150 yards--too short a range for certainty of depth. The bubbles passed just ahead of the periscope, and the enemy failed to notice it. He turned very sharply round the ship’s bow and came slowly down the starboard side at three knots. The second torpedo was then fired, but the bubbles passed a couple of feet abaft the periscope. This was cruelly hard luck, for the maximum depth was on; but there is no doubt that this torpedo, like the other, must have leaped over, from being fired at so close a range. This time the enemy saw his danger, and instantly submerged. Captain Campbell had now lost his last chance of a kill, and was bound to signal urgently for assistance. He did so; but in case the U-boat reappeared to torpedo or shell again, he arranged for some of his remaining men to be ready to jump overboard in a final panic, leaving still himself and one gun’s crew to fight a forlorn hope. This last extremity was not reached. The U.S.S. _Noma_ arrived almost immediately and fired at a periscope a few hundred yards astern until it disappeared. Then came two King’s ships, the _Attack_ and _Christopher_. Boats were recalled, the fire extinguished, and everything on board having now exploded, arrangements were made for towing. For twenty-four hours the _Christopher_ bore her burden like a saint. Then the weather began to tell upon the half-dead ship, and sixty of her crew and her wounded were transferred to the trawler _Foss_. The next night the sea claimed the _Dunraven_ in unmistakable tones. The _Christopher_ came alongside and brought off her captain and the rest of her crew; and when she rolled end up, gave her a gunshot and a depth-charge, to take her to her last berth.