chunk: That night, the captain, being restless, unusually takes the watch. As the only man on deck in the small hours, he sees that a man has swum up to the ship's side. The naked swimmer is hesitant to talk or come on board, but seems pleased to discover he is speaking to the captain. Once on board he and the captain find a natural rapport, almost as if he, Leggatt, were the captain's other self; especially as the captain has now fetched some of his own clothes that Leggatt is now wearing.