An old man reflects on how, as a young boy, he used to play games with his sister. They would do things that were scary just for the fun of freaking one another out. After their father left their family, they moved with their mother to a new house, where their favorite game involved the sister placing her hand in the space between the shingle and the wall and the brother making up tales of the frightful creatures occupying that space. One day, the brother notices something strange about the house while they’re playing the game: the house has one more window on the outside than the inside. He tells his sister to investigate, but as she looks for the missing window, she falls into the outside window, known as a windeye. When the boy goes to tell his mother that his sister’s disappeared, his mother says that he never had a sister. The years go by, and the boy grows up into a man. His mother retains no memory of her daughter, and the man is enticed to give up on his conviction that his sister once existed. But he refuses to do so in the knowledge that if he stops believing in her, she will cease to exist. His mother dies and he is left alone in the world, wondering if he’ll ever receive a sign of his sister’s existence before he dies.