The greatest and most mysterious desert in the world. A brave pilot who went missing in the thirties; a battleship with Confederate gold on board that disappeared into the fog; an ominous mine, not inferior in terms of the severity of the regime to Nazi concentration camps... And the worst thing is the source of environmental poisoning, threatening the existence of all mankind. Only Dirk Pitt, the constant hero of Clive Cussler's novels, is capable of linking together a chain of terrible and terrible events and revealing the secrets of African sands.