Dirk Pitt--"oceanography's answer to Indiana Jones"*--responds to a Mayday signal from a deserted ship and gets drawn towards a deadly Cold War secret in this thriller in Clive Cussler's #1 New York Times -bestselling series. 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--"Under attack "--from a nearby freighter. But when he...