As the last boat was pushing off, the enemy’s periscope was seen for the first time, just before the port beam, and about 400 yards from the ship. He turned and came straight on; but ten minutes later, when only 50 yards from the ship and close to the stern of the lifeboat, he submerged completely and disappeared. His periscope was sighted again a few minutes later, directly astern; he then steamed to the starboard quarter, turned round and went across to the port beam, turned again towards the ship and lifeboat, and finally, after all this nosing about, broke surface within 50 yards or less. But even now he was extremely cautious, showing only his conning-tower and ends; and when the lifeboat pulled away round the ship’s stern, he followed close behind, with only one man visible on top of the conning-tower, shouting directions to those below. For the next three minutes of this long game of patience, the strain was intense. Commander Campbell was watching the man on the conning-tower carefully, for as long as he saw him perched up there he knew that he could reserve his fire. Lieutenant Hereford was waiting till he was certain that his captain was in a winning position. As soon as that was attained, he pulled deliberately towards the ship. This annoyed the submarine, whose object was evidently, in case of a fight, to keep the boats as much as possible in the line of fire. He came right up to the surface and began to semaphore to the boats, at the same time training a Maxim on them. But by this time the U-boat was only one point before the ship’s beam, with all guns bearing on him at 50 yards’ range--Commander Campbell’s chance had come. He opened fire with a shot from the 4-inch gun, which struck the base of the conning-tower and also removed the two periscopes. Hit after hit followed, nearly all in the conning-tower, which could no longer be closed. The submarine took a list to port, and several men rushed up, out of the hatch abaft the conning-tower. Then, as the stern began to sink and oil squirted from the boat’s sides, the rest of the crew came out, held up their hands and waved in token of surrender. Commander Campbell, of course, ordered ‘Cease fire’; but no sooner had the order been obeyed, than the pirate started to move off on the surface, hoping, though listing to port and down by the stern, and in honour bound a prisoner, to get away in the mist. The _Pargust_ could not follow, so that she was obliged to open fire again. The U-boat’s breach of faith did not save her. In her quick rush, she got to about 300 yards from her captor, whose guns continued to speak straight to her. Then a shot apparently touched off one of her torpedoes--there was an explosion forward, and she fell over on her side. For a moment her bow was seen jutting up sharply out of the water, and the next she was gone.