James Becker, New York Times bestselling author of The Templar Archive, returns with a breakneck thriller whisking readers into the shadowy secret chambers of the Knights Templar.

Having barely escaping the crosshairs of a deadly cult, Robin Jessop and David Mallory crisscross Europe, seeking to unlock the truth behind a conspiracy unresolved for seven hundred years—the mystery of what has given the enigmatic Templars their unwavering power.

Infiltrating the group’s vast archives, Jessop and Mallory make a startling find. An ancient Templar passport hints at a sacred mission: the transportation of a priceless treasure, an artifact of incomprehensible value. Delving through centuries of clues and deception, the two come face-to-face with a secret that could shake Christendom to its core—and cost their own lives along the way.