A Wall Street Journal bestselling series. An explosive conspiracy sets the ocean roiling for a deep-diving investigator in a riveting thriller by the author of the Amazon Charts bestseller The Girl Beneath the Sea. A distress call draws rescuers Sloan McPherson and the Underwater Investigation Unit to a cruise ship off the coast of Fort Lauderdale that’s sinking from a mysterious explosion. When it appears to be the work of an ecoterrorist and other ships are threatened, it becomes a race against time. More clues are discovered, and evidence is in danger of being washed away by a coming tropical storm. Sloan grows concerned that key details are being ignored, and a strange lack of urgency by authorities sets off alarms. As the troubling questions compound, Sloan is determined to chase down every lead she has. It’s also putting Sloan on a collision course with an enemy more powerful than she realizes, in a case so complex and deadly it may be impossible to prove. Now cracking the case is a matter of staying one step ahead of someone with every resource imaginable to bury Sloan and everything she knows
