Summary Tomás uncovers connections between Manuella and Savigliano. Upon returning to Lisbon, he feels increasingly as if he's being watched, and distrustful of the Foundation, still not imagining that Diogo is watching him through surveillance cameras and that Helena is working for the institution. Moliarti is unhappy with the progress of the investigation, which indicates some flaws in the theory about Columbus being Genoese, but Tomá remains determined to follow it through to the end. Meanwhile, during another attack on the statue of Father António Vieira, Bruno and Afonso are saved by Tomás, who helps them escape from the police, putting his life in danger. Margarida undergoes emergency heart surgery, giving Tomás and Constança a scare. The surgery is a success. Later, in an attempt to open the safe, the historian goes to the Synagogue and speaks to Solomon, the rabbi, a long-time acquaintance of Toscano's. During the conversation he discovers that Columbus was a Marrano, a name given to Jews who converted to Christianity. Convinced he has found the key to the safe, he goes to Luísa's house and runs into the man who had just stolen from him. After a frantic chase, the thief's car falls into the river. Tomás throws himself into the water to retrieve the safe, as the car sinks.

• Crime
• Drama
• Mystery