The Devil's Last Promise Joan Moretti has spent her entire life believing one truth: the Victor family destroyed hers. The Victors are one of the most powerful families in the city, their wealth built on secrets, influence, and a criminal empire that even the authorities struggle to touch. At the center of that empire stands Victor—the cold, controlled heir everyone fears and the man Joan has been taught to hate. When Joan's father, a respected prosecutor who has spent years trying to bring the Victor family down, is attacked under mysterious circumstances, all evidence points toward Victor. Certain that the family is finally taking revenge, Joan decides to uncover the truth herself. But getting close to Victor reveals something she never expected. He isn't the monster she imagined. Victor knows Joan is being manipulated, but exposing the truth could tear his family apart. Worse, the closer Joan gets to the secrets surrounding her father's attack, the more danger she puts herself in. Someone inside both families has been carefully controlling events from the shadows, using their hatred to hide a much darker plan. Forced into an uneasy alliance, Joan and Victor begin searching for answers together. What starts as suspicion slowly becomes trust. Trust becomes something neither of them is prepared to name, and their growing feelings threaten to destroy the walls they have spent their entire lives building. But Victor's older brother, Pascal, has no intention of allowing Joan to uncover the truth. He believes Victor's compassion has made him weak and will do anything to protect the family—even if it means turning brother against brother. Meanwhile, Mary's discovery of a long-hidden secret threatens to expose the truth behind the conflict between the two families. As old secrets emerge, Joan discovers that the tragedy that divided their families was never what she was told. The person responsible has been hiding in plain sight, and the truth could destroy everything she believes about her own family. Now Joan must choose between the revenge she has always wanted and the man she was never supposed to trust. And Victor must make the most dangerous choice of his life: Protect his family's legacy... or protect Joan. Because sometimes the person you were taught to hate becomes the only person you can trust—and sometimes love is the most dangerous promise of all..

Victor Valenti was born into a world where power was inherited, loyalty was demanded, and betrayal was punished. As the ruthless heir to the Valenti crime empire, love was the one weakness he could never afford. Joan Bellini, daughter of a rival family, had spent her life hating everything the Valentis represented. But when a dangerous alliance forces their paths together, hatred slowly turns into an undeniable connection. Caught between family loyalty, deadly enemies, forbidden feelings, and secrets buried for years, Victor and Joan must choose between the blood that binds them and the love that could destroy everything they know.