"Casa Tomada" (English: "House Taken Over") is a 1946 short story by Argentine writer Julio Cortázar. It was originally published in Los anales de Buenos Aires, a literary magazine edited by Jorge Luis Borges, and later included in his volume of stories, Bestiario. It tells the story of a brother and sister living together in their ancestral home which is being "taken over" by unknown entities. The mystery that revolves around what those entities are is largely left up to interpretation, allowing the genre of the story to vary from fantasy to psychological fiction to magic realism to political fiction, among others.