'Spain's Ken Follett' ups his game further with a breakneck historical thriller.

Gibraltar, 1940. During a horrific storm, a sea captain rescues a group of castaways - and in return is given a strange-looking emblem made of gold and diamonds. Decades later, the captain's son receives a substantial offer for the emblem. He will not sell it, but discovers the astounding story behind this mysterious object . . .

Munich, 1919. Fifteen-year-old Paul Reiner dreams of the heroic father he never knew, who died during the First World War. One night, Paul discovers a secret which turns his world upside down - and from that moment, he sacrifices everything to uncover the truth behind his father's death.