A historian goes to a castle library to translate some ancient erotic literature. While there he discovers what he believes to be supernatural forces at work. A historian goes to a castle library to translate some ancient erotic literature. While there he discovers what he believes to be supernatural forces at work. A historian goes to a castle library to translate some ancient erotic literature. While there he discovers what he believes to be supernatural forces at work. A historian goes to a castle library to translate some ancient erotic literature. While there he discovers what he believes to be supernatural forces at work.