Sunken Shadown. Shadows Landing, #2

As a rescue swimmer for the Coast Guard, Wade Faulkner was used to unpredictable situations. But an emergency call late one night turns his life upside down. After finding a boat on fire, he discovers a dead body and a visibly shaken woman in need of rescue. Now he finds himself entangled in a murder mystery between two teams of treasure hunters out for the discovery of a lifetime .