A locked server. A 900-year-old billionaire vampire. And a routine audit that turns into a deadly game of survival on the open sea. Elena Rossi lives by logic, numbers, and strict precision. As a sharp Milanese financial auditor, she expects her three-day charter on a luxury Mediterranean cruise liner to be routine, boring, and predictable. But when she uncovers an encrypted off-books partition hiding twenty years of dark financial transactions, she accidentally exposes a global conspiracy. And catches the eye of the dangerous man who owns the ship. Nikolai Romanov is a 912-year-old vampire Elder, a powerful billionaire shipping magnate, and a man built on centuries of ironclad restraint. When he realizes Elena has uncovered the criminal empire run by his corrupt rival, Konstantin Volkov, Nikolai knows her life is measured in hours if she steps ashore. To keep her alive, Nikolai whisks her away to his private, matte-black mega-yacht, The Crimson Wake. Isolated on international waters, Elena finds herself trapped in a world of ancient laws, deadly secrets, and irresistible danger. As she works alongside Nikolai to decrypt the full manifest before an ancient Council of Elders convenes in Split, the slow-burning tension between them ignites into a searing, undeniable pull. Nikolai has spent centuries refusing to claim a mortal. But as Volkov closes in, targeting everyone Elena loves, Nikolai will break every rule he has ever kept to protect her—because anyone who touches his auditor dies. Tropes Included in The Vampire’s Audit: Billionaire Vampire MMC: A 900+ year-old Russian vampire Elder who owns a shipping empire and a dark mega-yacht. Hyper-Competent FMC: A sharp, brilliant Italian financial auditor who relies on logic, mathematics, and sharp instincts. Forced Proximity: Cooped up together in the high-tech owner's suite and private workroom of a luxury yacht in international waters. Touch Her and Die / Ultimate Protector: An ultra-possessive, restrained antihero who will tear through an ancient vampire syndicate to keep her safe. Slow-Burn to Searing Heat: Intense emotional and physical tension building into explosive paranormal intimacy and blood-bond dynamics. Ancient Age Gap: A mortal 28-year-old heroine paired with a 912-year-old immortal hero. Romantic Suspense / Syndicate Conspiracy: Unravelling encrypted ledgers, corporate espionage, and a high-stakes vampire Council tribunal.