had been damaged, but, in the main, the vessel was intact. The submarine was always heroic enough when it came to shelling defenceless merchantmen, but the appearance of a destroyer anywhere in her neighbourhood made her resort to the one secure road to safety—diving for protection. The Nicholson immediately trained her guns on the U-boat, which, on the second shot, disappeared under the water. The destroyer despatched men to the disabled vessel, the fire was extinguished, necessary repairs to the machinery were made, and in a few hours the Luckenback had become a member of the convoy.
Hardly had she joined the merchant ships and hardly had the Nicholson taken up her station on the flank when an event still more exciting took place. It was now late in the afternoon; the sea had quieted down; the whole atmosphere was one of peace; and there was not the slightest sign or suggestion of a hostile ship. The Orama, the British warship which had accompanied the convoy from its home port as ocean escort, had taken up her position as leading ship in the second column. Without the slightest warning a terrific explosion now took place on her starboard bow. There was no mystery as to what had happened; indeed, immediately after the explosion the wake of the torpedo appeared on the surface; there was no periscope in sight, yet it was clear, from the position of the wake, that the submarine had crept up to the side of the convoy and delivered its missile at close range. There was no confusion in the convoy or its escorting destroyers but there were scenes of great activity. Immediately after the explosion, a periscope appeared a few inches out of the water, stayed there only a second or two, and then disappeared. Brief as was this exposure, the keen eyes of the lookout and several sailors of the Conyngham, the nearest destroyer, had detected it; it disclosed the fact that the enemy was in the midst of the convoy itself, looking for other ships to torpedo. The Conyngham rang for full speed, and dashed for the location of the submarine. Her officers and men now saw more than the periscope; they saw the vessel itself. The water was very clear; as the Conyngham circled around the Orama her officers and men sighted a green, shining, cigar-shaped thing under the water not far from the starboard side. As she sped by, the destroyer dropped a depth
