Towards the end of the fifteenth century, Fernando de Rojas, a law student at the University of Salamanca and future author of La Celestina, would investigate the murder of a theology professor. The event sets off a complex plot that weaves together the circumstances of Jews and converts, unleashed passions and heterodox doctrines, the emerging wave of Humanism and Salamanca's underground movement. This is a book about the history and legend of a fascinating city in a time of change.