A noted financial publisher and adventurer, Raymond LeBaron, sets off in an antique blimp in search of the Cyclops, a U.S. Navy collier which vanished in mysterious circumstances in 1918 near Cuban waters—and which may have had on board a fabulous treasure...LeBaron and his crew also vanish, in circumstances that are at once puzzling and alarming and which lead a reluctant Dirk Pitt into one of the most extraordinary adventures of this career—and adventure that leads him step by step, in constant danger, to the discovery of a secret base on the moon, a Soviet plot against Castro that endangers the peace of the world, and the unveiling of the treasure itself...

With the skilled hand of a master storyteller, Clive Cussler has woven in Cyclops his most complex and suspenseful plot, linking the fascinating behind-the-headlines facts of Star Wars and the Cold War with a compelling story of greed and passion—and a secret so amazing that it has been kept from the President of the United States himself. The bizarre chain of events that begins with LeBaron's disappearance explodes into a battle between the Soviet Union and the United States for possession of the moon and ends with a blazing, cliff-hanging race against time to prevent an awesome tragedy. It almost defeats Dirk Pitt and takes him from the inner councils of the White House to a confrontation with Fidel Castro himself...