No, I am not giving you "sharks." There isn't a shark in this story, and I don't know that I would tell it at all if we weren't alone, just you and I. But you and I have seen things in various parts, and maybe you will understand. Anyhow, you know that I am telling what I know about, and nothing else; and it has been on my mind to tell you ever since it happened, only there hasn't been a chance. It's a long story, and it took some time to happen; and it began a good many years ago, in October, as well as I can remember. I was mate then; I passed the local Marine Board for master about three years later. She was the _Helen B. Jackson_, of New York, with lumber for the West Indies, four-masted schooner, Captain Hackstaff. She was an old-fashioned one, even then--no steam donkey, and all to do by hand. There were still sailors in the coasting trade in those days, you remember. She wasn't a hard ship, for the old man was better than most of them, though he kept to himself and had a face like a monkey-wrench. We were thirteen, all told, in the ship's company; and some of them afterwards thought that might have had something to do with it, but I had all that nonsense knocked out of me when I was a boy. I don't mean to say that I like to go to sea on a Friday, but I _have_ gone to sea on a Friday, and nothing has happened; and twice before that we have been thirteen, because one of the hands didn't turn up at the last minute, and nothing ever happened either--nothing worse than the loss of a light spar or two, or a little canvas. Whenever I have been wrecked, we had sailed as cheerily as you please--no thirteens, no Fridays, no dead men in the hold. I believe it generally happens that way. I dare say you remember those two Benton boys that were so much alike? It is no wonder, for they were twin brothers. They shipped with us as boys on the old _Boston Belle_, when you were mate and I was before the mast. I never was quite sure which was which of those two, even then; and when they both had beards it was harder than ever to tell them apart. One was Jim, and the other was Jack; James Benton and John Benton. The only difference I ever could see was, that one seemed to be rather more cheerful and inclined to talk than the other; but one couldn't even be sure of that. Perhaps they had moods. Anyhow, there was one of them that used to whistle when he was alone. He only knew one tune, and that was "Nancy Lee," and the other didn't know any tune at all; but I may be mistaken about that, too. Perhaps they both knew it.