She is the most important person in the world. She is The Key

Journalist Liv Adamsen has escaped the highly-secretive Citadel in the ancient city of Ruin and now lies in isolation, staring at hospital walls as blank as her memory. Despite her inability to recall, she feels possessed by an unexplained sensation and plagued by whispers only she can hear: "KuShiKaam," the key.

To others the meaning is clear. For "the Ghost," a mercenary operating in Syria, Liv may hold the key to history's most powerful secret. For the monks in the Citadel, her return to Turkey may be their only chance at survival. And for a powerful faction in the Vatican, her very existence threatens the success of a desperate plan.

Hunted from Turkey to New York to the deserts of the Middle East, Liv races to uncover a revelation dating from the creation of man in this electrifying follow-up to the international bestseller Sanctus.