The stage is set with the Captain's house, constructed in the fashion of a ship's deck and cabin, providing an emotional aura that allows O'Neill to blend his realism with the expressionist, illusion like, fantasy; it really is a house, but to the Captain it is the timbers of his haunted ship. The moon glowing brightly on the deck of the Captain's "vessel" allows both Nat and Captain Bartlett to experience the fantasy of the Mary Allen coming in to shore. Again there is a blending: Sue, the daughter, experiencing a simple moonlit night while Nat