On the day Ariana Moretti buries her father, a convoy of black luxury cars arrives at the cemetery. The mourners fall silent as Lucien De Luca the most feared mafia king in Europe steps forward and places a single red rose on the coffin.Then he utters seven words that shatter Ariana's world."Your father promised you to me."Ariana refuses to believe him. Her father was a respected businessman, not a man who made deals with criminals. But when masked assassins attack the funeral, Lucien saves her life and forces her into his heavily guarded estate, insisting that every enemy hunting him is now hunting her.As Ariana searches for a way to escape, she uncovers a trail of secrets hidden by her late father secret bank accounts, coded letters, and evidence linking him to a decades-old mafia war. The promise wasn't a business deal or a debt. It was a desperate attempt by a father to keep his daughter alive.Surrounded by betrayal, enemies disguised as allies, and a dangerous man whose obsession blurs the line between protection and possession, Ariana must decide whether to trust the devil everyone fears or the people who have lied to her all her life.But every answer leads to another question, and every step toward the truth drags her deeper into a bloody conspiracy capable of destroying five powerful mafia families.In a world where loyalty is bought with blood and love is forged through sacrifice, one vow will demand everything.Because some promises are made to be broken.The Devil's Vow is a gripping dark mafia romance filled with dangerous secrets, slow-burning passion, shocking betrayals, and unforgettable twists that will leave readers desperate for the next chapter.