Sofía Rhei is the author of the humorous children's series "Krippys", under the pseudonym Cornelius Krippa (Montena), the book of short stories "Cuentos y leyendas de objetos mágicos" (Tales and Legends of Magical Objects") and the young adult novels "Flores de Sombra" ("Shadow Flowers") and "Savia Negra" ("Black Sap") (Alfaguara).