Annabel: A Novel for Young Folk is a 1906 juvenile novel written by L. Frank Baum, the author famous for his series of books on the Land of Oz. The book was issued under the pen name "Suzanne Metcalf," one of Baum's various pseudonyms. Annabel was one of Baum's first efforts to write a novel for adolescent girls – who soon became one of his most important audiences.