For millions of readers, New York Times bestselling author Randy Wayne White "raises the bar of the action thriller." (The Miami Herald) Two decades ago, under the pen name Randy Striker, he was already delivering high-octane adventure with ex-Navy SEAL Dusky MacMorgan—who finds himself sailing in uncharted waters of danger and deception. . . .

Gifford Remus is well known as an eccentric scavenger in Key West, combing the ocean, beaches, and byways for anything of interest. But the gold chain he shows to Dusky MacMorgan is no ordinary trinket—it's the key to finding a long-lost treasure at the bottom of the sea. Before MacMorgan can find out where that is, Remus vanishes off his boat, the apparent victim of a shark attack. But MacMorgan suspects the true killer walked on two legs. Now, surrounded by predators in and out of the water who are armed with both brute strength and breathtaking beauty, he's going hunting for the treasure—and for vengeance.