A lost masterpiece. A centuries-old secret. A quest that could change history.

When disgraced art historian Marcus Vincelli is invited to examine a newly discovered document from Leonardo da Vinci's workshop, he sees a chance to redeem his tarnished reputation. But as he and brilliant archivist Sophia Ricci delve deeper into the mystery of La Donna Segreta, they uncover a conspiracy that stretches far beyond the art world.

From the archives of Florence to the hidden crypts of the Vatican, Marcus and Sophia must decipher codes, expose forgeries, and evade those who would kill to keep the truth buried. But as they get closer to finding the lost painting, they realize that the secrets it holds could shatter the very foundations of the Renaissance.

With the help of the enigmatic Vittorio Borghese, a descendant of the powerful Sforza family, they must decide who to trust as they race to unravel the mystery of La Donna Segreta. For the truth, once revealed, could change everything.