An Antarctic whaler stumbles across an aged wreck — her frozen crew guarding a priceless treasure. A team of anthropologists is buried under a mountain by a deliberate explosion. A ship that should have died fifty-six years ago reappears, and almost sinks a National Underwater and Marine Agency ship. Dirk Pitt knows that somehow these events are connected. His investigations lead to an ancient mystery with devastating modern consequences, and a diabolical enemy unlike any he has ever known....