He and three other men, so he said, were sculling a very heavily laden boat up from Maidenhead one evening, and a little above Cookham lock they noticed a fellow and a girl, walking along the towpath, both deep in an apparently interesting and absorbing conversation. They were carrying a boat-hook between them, and, attached to the boat-hook was a towline, which trailed behind them, its end in the water. No boat was near, no boat was in sight. There must have been a boat attached to that towline at some time or other, that was certain; but what had become of it, what ghastly fate had overtaken it, and those who had been left in it, was buried in mystery. Whatever the accident may have been, however, it had in no way disturbed the young lady and gentleman, who were towing. They had the boat-hook and they had the line, and that seemed to be all that they thought necessary to their work.