To stop a killer on the most luxurious yacht in the world, Sofia Costa must outwit billionaires... When an anonymous threat warns that someone will die aboard The Elysian —a $300 million superyacht hosting the world’s most elite passengers—Sofia Costa is hired to investigate. A former Interpol polyglot turned private security consultant, Sofia is no stranger to danger. But nothing prepares her for the volatile mix of secrets, rivalries, and power games simmering beneath the champagne surface. Trapped at sea during a sandstorm, cut off from communication, and surrounded by suspects—from exiled royalty and fallen tech heiresses to cutthroat oil tycoons—Sofia must untangle decades of betrayal before someone makes good on the deadly promise. And when her reluctant partner Julian Varga resurfaces, the job becomes even more complicated. Luxury has a dark side. And paradise? It's the perfect place to kill.