The 14th Century. Shortly after the discovery of an ancient relic in a secret, long-forgotten crypt, a remote monastery is burnt to the ground, and all its inhabitants slaughtered.

Disgraced Inquisitor Conrad of Marburg is summoned from his exile and sent on a world-spanning quest to discover the truth behind the massacre. But is he, the Church and humanity ready for the shattering revelations his journey will reveal?