The Thirteenth Apostle

Gabriel Antinori is a Jesuit theology professor assigned to investigate alleged paranormal phenomena. He is also haunted by a past he can't remember. Orphaned, he grew up under the tutelage of Monsignor Demetrio Antinori, the uncle who entrusted him with his first case. Gabriel and Claudia find themselves investigating a case of alleged hemolacria: a young student at Santa Dorotea, a private all-girls boarding school, is crying blood. Gabriel unexpectedly discovers that the phenomenon is linked to a series of drawings that will sow terror and death within the school.

Shocked by the way Gabriel saved Agata, and unable to come up with rational answers, Claudia decides to investigate her past. Demetrio, on the other hand, refuses to believe his nephew, attributing his power to mental tricks caused by stress and an obsession with his past. Stefano, a sixteen-year-old boy, following a physical trauma, begins to have memories that seem to belong to a Nazi soldier. These memories replace his own, stealing his history and personality. Gabriel and Claudia find themselves investigating this unusual phenomenon, which does not appear to be attributable to mental illness.

In a remote village, Rachele, a young girl, returns after ten years, identical to the day she disappeared. Time seems to have stood still for her, but her presence, far from being miraculous, is accompanied by a series of mysterious deaths. Gabriel investigates the secret surrounding her return. The death of Marshal Marini and the return of Muster, who spurs Gabriel to delve deeper into the nature of his gift, lead Gabriel to the agonizing decision to return to the villa where he spent his childhood and where his mother lost her life. Gabriel asks Claudia to accompany him on this difficult journey.

Gabriel and Claudia are far from each other: he is busy searching for his enemy Serventi, she is struggling with a new life to forget an impossible love. But fate forces them back together, and as before, they must solve the mystery of a man capable of healing every physical ailment. Gabriel investigates the mystery of the stigmata: a young nun with wounds that were said to have opened by the will of Christ. Claudia believes this to be a serious religious delusion, but Gabriel discovers an ancient mystical ritual behind the mystery.

Gabriel's miraculous return to life binds him even more to Claudia, but there are those in the Congregation who doubt him and there is great concern about his powers. Gabriel must also solve the mystery of the corporeal apparition of a boy in an irreversible coma. Gabriel and Isaiah find themselves facing the toughest battle of all: the one with the devil incarnate. A town has been subjugated by evil. Their only hope lies in the help of a famous exorcist, who will find himself settling accounts with an ancient enemy.

Gabriel investigates evil presences in an ancient villa, where unsated ghosts from the past return to influence the present, endangering Claudia and Gabriel's lives. A married couple have moved to a small town near Rome, purchasing a villa that appears to be haunted by evil spirits. Inside a juvenile prison, an orphan boy nearing the end of his sentence manifests psychokinetic powers that allow him to hurl both objects and people. This power manifests whenever the boy hears a female voice in his mind and experiences memories of sexual assault.