They sight an erratically moving Dutch ship with a grinning red-capped seaman on deck, nodding in apparent greeting as they approach. Initially delighted with the prospect of deliverance, they quickly become horrified as they are overcome with an awful stench. They soon realize that the apparently cheerful sailor is, in fact, a corpse propped up in the ship's rigging, his "grin" a result of his partially decomposed skull moving as a seagull feeds upon it. As the ship passes, it becomes clear that all its occupants are rotting corpses.