The ancient Order of the Knights Templar possessed untold wealth and absolute power, until the Inquisition destroyed them, and their riches were lost forever.
But some people don't believe in 'forever'.
Ex-agent Cotton Malone used to work for Stephanie Nelle in the US Justice Department. Now she seeks his help again to crack a series of puzzles that have confounded experts for centuries - and could lead to the legendary lost treasure of the Knights.
But Malone soon realizes someone else is on the trail - someone prepared to commit the ultimate crime in pursuit of the ultimate prize. Malone and Nelle find themselves in a heart-stopping race through the villages, castles and cloisters of Europe in pursuit of a secret that, in the wrong hands, could bring the world to its knees.
'A major twist midway through the story... the puzzles are so much fun... grabby stuff' WALL STREET JOURNAL
'Berry raises this genre's stakes' NEW YORK TIMES