A drowned diver, a media frenzy, and an event full of suspects .

When the body of a freediving champion surfaces on the morning of an international tournament, San Malvino's laid-back paradise turns into a pressure cooker. The victim? A golden-boy athlete with charm to spare and rivals from every continent. The suspects? Competitive divers with killer instincts, brand reps with too much money, and a coach who knows how to stay underwater—and under suspicion.

Retired therapist Alex and her ex-SEAL husband Reg aren't exactly qualified for murder cases... unless you count their last two. With their bomb-sniffing dog Bombay leading the beach patrol, they wade into a world of breath-holding records, sponsorship scandals, and island gossip deep enough to drown in.

As they chase leads from coral coves to luxury cabanas, it becomes clear: someone's willing to do anything to win—and even more not to get discovered.

Death's gone offshore. Pack fins and a flashlight.