In the spring of 1518, near Jaén, Spain, Pedro de Vargas, a Castilian caballero, helps a runaway Aztec slave, Coatl, escape his cruel master, Diego de Silva. De Silva is el supremo of the Santa Hermandad, charged with enforcing the Inquisition, and Pedro's rival for the affections of the beautiful Lady Luisa de Carvajal. Later, Pedro rescues barmaid Catana Pérez from de Silva's...