Odessa sea

"Dirk Pitt, the director of the National Underwater and Marine Agency, is on the Black Sea, helping to locate a lost Ottoman shipwreck, when he responds to an urgent Mayday from a nearby freighter. But when he and his colleague Al Giordino arrive, there is nobody there. Just dead bodies, a smell of sulfur in the air, and, as Pitt and Giordino explore, a blast from the stern that scuttles the ship swiftly, almost taking them with it. The more the...