12 BC - Marcus Aemilius Lepidus, the Pontifex of Rome, and Agrippa, the politician appointed as his successor by the powerful Emperor Augustus, are mysteriously killed by eagles that tear apart their entrails. Disturbed by these incidents, Augustus commissions his old friend, Senator Alix Gracchus, to discreetly investigate the cases. This investigation leads Alix, supported by his sons Titus and Kephren (the biological son of Enak, whom Alix adopted after his death), on the trail of the enigmatic Lord of the Birds. However, the danger is far from over; it now even threatens the Emperor himself. Ultimately, Alix will discover that the most dangerous predator hides in the heart of Rome, where no one would have suspected it... A new chapter opens for the famous Roman boy Alix, created by Jacques Martin, now at a mature age.