In Charlotte Perkins Gilman's story, "The Yellow Wallpaper," the narrator is a woman who is traumatized by postpartum depression, and confined to a room with distressing wallpaper, spirals into madness. She is an unreliable narrator, and this contributes to the mystery in the story. Readers are never certain if what she is saying is true or delusional. She writes in a journal and talks to someone (she uses 'you' throughout) so that the reader is never certain of what she really means. The structure of the story includes the narrator's discussion of her feelings, description of the wallpaper, and talk about and to the woman she sees in the wallpaper. In the final scene, when the narrator has finished pulling down the paper and says she IS the woman behind the paper, her unreliability throughout the story and the structure Gilman creates offer a surprise ending.