"I think, Mr. Silva," said the former, addressing the officer of the watch, "we had better take another reef in the topsails; it looks very squally to windward; it's drawing near to eight bells, so we'll turn the hands up at once." "Mr. Rattlin," said Silva, "all hands reef topsails." "Boatswain's-mate," bawled out Rattlin, going forward on to the weather gangway, "turn the hands up to reef topsails." "Ay, ay, sir;" and immediately his silver call was between his lips, and after blowing a shrill prelude, his hoarse voice was heard proclaiming, "All hands reef topsails, ahoy," which was re-echoed from the main-deck by the call and voice of the boatswain's-mate of the watch below, and, finally, by those of the boatswain himself, as the men came tumbling up the fore and main hatchways, and were soon seen scampering up the rigging, or making the best of their way to their various stations. In less than five minutes the topsails were double-reefed, and the ship again dashing the spray from her bows. It being now so near the time for relieving the watch, the crew, with the exception of the idlers, all remained on deck, and the topmen scattered in groups about the gangways and forecastle. All at once the sky grew blacker than before, the breeze freshened, and the surface of the sea became like one sheet of pale blue and white flame. "Now, Careless," whispered Rattlin, actually trembling with excitement, "my dream to the life!" The words had scarcely passed his lips, when such a shriek as I never heard before or since, seemed to come out of the very depths of the ocean, close under the ship's counter on the lee quarter. Every one rushed to the lee gangway, or jumped on the quarter-deck guns, to look in the direction from whence the sound came; but nothing could be seen. Once more that doleful cry arose, and it seemed now rather more distant from the ship, and then it ceased forever. "A man overboard!" cried the first lieutenant, who seemed the first to recover his senses, seizing a grating of the companion-hatchway, and flinging it over the lee bulwark, while the lieutenant of the watch did the same with its fellow. "Down with helm, and heave her all aback--let go the lee braces--lay the main-topsail to the mast--square away the after-yards, my boys--lower the jolly-boat--jump into her, some of ye, and cast off her fastenings." This latter command had, however, been obeyed ere it was issued, for the captain of the mizen-top and myself had jumped into the boat, where we were soon joined by three other mizen-top-men, and had her all clear for lowering. Two other seamen stood with the boat's tackle-falls in their hands. "Lower away," cried I; and down we went. During her descent, I had shipped the rudder, and we were soon pulling away to leeward. In vain we pulled about for more than an hour in the short, tumbling sea, which scintillated as it broke around us, and shed a ghastly hue on our anxious countenances, while the