Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

His protagonists include the former ranch owner Baltasar Bustos and in another one of his works, a young woman controlled by her orchestra director, Gabriel, with a crystal seal. In addition to Inez, this decade has seen him publish such works as This I Believe and The Seat of the Eagle. His second novel focuses on a young historian who finds himself falling in love with an elderly widows niece, but when he embraces her she turns into the old woman. That work, Aura, was followed by such works as A Change of Skin, about a group of people on a journey to Veracruz, and Terra Nostra, a rumination on Spanish and Latin American History. Perhaps best known in the U.S. for his novel about the last days of Ambrose Bierce, for ten points, identify this Mexican writer of The Old Gringo and The Death of Artemio Cruz.
Literature