The Seventh Secret (en Inglés) - Preston William Child

Something is buried with the wreck. Something that wants to stay buried.

Off the coast of South Africa, a failing academic makes the discovery of his career: a shipwreck that could change everything he knows about maritime history. Dr. Billy Malgas needs the find kept quiet until the salvage is complete. He needs a filmmaker he can trust. He calls investigative journalist Sam Cleave.

Sam brings in historian Nina Gould and billionaire inventor Dave Purdue. The operation sets sail into the Indian Ocean.

Every member of the crew is lying about something.

Purdue's financial partner, Crystal Meyer, has her own reasons for funding the expedition, and her own people on the way. The contractor she summons from Egypt is not who he claims to be. And the wreck itself holds a secret older than any empire, and deadlier than anything modern science can measure.

When the weather turns and the truth breaks the surface, the salvage operation becomes a fight for survival. No radio. No rescue. No way off the boat.

Seven secrets will come to light before this voyage ends. One of them will kill them all.

Perfect for fans of Clive Cussler, James Rollins, and Steve Berry.