Heréticos e Impuros: A Inquisição e os Cristãos-Novos no Rio de Janeiro (Heretics and the Impure: The Inquisition and the New Christians in Rio de Janeiro) by Lina Gorestein Ferreira da Silva is a book about The Inquisition, which highlights the actions of the Tribunal do Santo Ofício (Court of the Holy Office) towards its victims, the New Christians, who, since the beginning of colonization, sought to rebuild their lives in Brazil.

Lina Gorestein Ferreira da Silva studies a family, the Barros, examining the inquisitorial processes they underwent. These enable us to gain some insight, from complaints, confessions, contradictions and official inquiries, into the daily lives of New Christians in Rio de Janeiro.