A young and devout girl, Kaelyn Bright is inducted into a secret order of the Catholic Church in the 13th Century. Charged with defending the ordinary man against the supernatural, she will be aided by two other members of the Order - Tranter and Ember. Her personal feelings towards both of them become increasingly confused as they join forces to battle corruption within the Church of Rouen, and the true nature of her duties become apparent. Headed by the Archbishop of Rouen, once a knight in the Crusades, a coven is seeking to claim power throughout Europe by raising an army of pure evil, an act in contravention of all laws of God.