El Libro de piedra (The Book of Stone) is a 1969 Mexican horror film, written and directed by Carlos Enrique Taboada. Julia is hired to be the governess of a young girl, Sylvia who has an emotionally distant father, Eugenio, and a new stepmother, Mariana. Sylvia insists that she plays with a little boy named Hugo - whom the adults all see is a stone statue in the courtyard. When strange things begin to happen (such as Mariana, whom Sylvia dislikes, experiencing strange pains) the adults begin to wonder if Hugo may be more than just an imaginary playmate. This film is currently being re-made.