At the end of the XIII century by the Holy Knights Templar remain the same name. Unbreakable promises made by its founders, forgotten, and old allies became enemies overnight. In the Holy Land have crossed paths a French knight and noble d'Aristida Celia Marie Ibelin, daughter of a Templar, declared heretic by the Inquisition. And now these unexpected allies will have to penetrate the innermost secrets of the Knights Templar, a role to play in the great conspiracy and uncover the secret of the Holy Grail. And they will resist powerful opponents: the Saracens, King Philip IV of France and the Holy Inquisition.