Fearless adventurer Dirk Pitt returns in an explosive new instalment of the No. 1 Sunday Times bestselling series created by the grand master of adventure Clive Cussler. France May 1940. As the German army blitzes Europe a curator must take a mysterious cargo out of the country. When his intended ship sinks his cargos uncertain fate rests on a decrepit steamer sailing under German fire. Decades later a diving expedition leads Dirk Pitt to a shipwrecks cache of uncut diamonds. No sooner than discovered the diamonds are stolen - all while vital water treatment facilities around the globe are being targeted placing humanity in grave peril. Only Dirk Pitt can locate the treasure that will preserve the soul of a nation... and save the world from catastrophe.