The Marks of Cain

An audacious and terrifying new thriller from the author of the international bestseller The Genesis Secret . When David Martinez receives an ancient map from his dying grandfather, he is led into the heart of the Basque mountains, where a genetic curse lies buried- and a frightening secret about the Western world is hidden. Meanwhile, London journalist Simon Quinn is investigating two violent murders. Both victims had once been interned in a top-secret Nazi camp-and both came from the Basque re