"In this harrowing account of the aftermath of a tsunami, Jenifer Ruff takes you to ground zero of the disaster's mighty power, wrapping it with a haunting mystery. I loved every minute of it."-Timothy Browne - USA Today Best-Selling Author After the natural disaster, CDC epidemiologist Dr. Madeline Hamilton and her fiancé, FBI operative Quinn Traynor, go to Nalowale island to investigate a deadly outbreak of unknown origin. Victims become aggressive and irrationally violent, suffering from insomnia, hallucinations, and eventual death. But not everyone cooperates with the agents' efforts to save lives. Billionaire Devon Wheeler's fortune depends on completing construction of the Azure Cove Complex. He'll do whatever it takes to open the resort on time and protect his investment, even if it means concealing critical information related to the outbreak. As the wave of illness climbs toward a calamitous crash, Madeline uncovers something terrifying...and impossible. The natural disaster has collided with a sinister chapter of history and the victims have less chance of survival than Madeline realized. "Once again, Jenifer Ruff delivers a heart-pumping thriller! The well-crafted twists surrounding this medical mystery will keep you guessing until the end." - Audrey J. Cole - USA Today Best-Selling Author This is the explosive third adventure in the bestselling FBI & CDC Thriller Series by USA Today bestselling author Jenifer Ruff. Mystery and medical thriller fans of James Patterson, Michael Crichton, and James Rollins will love .