Paris, 1933. Europe is still in the grip of feudal warlords, the Catholic Church has all the power of a secret police force, and sorcerers stalk the streets at night. Welcome to the world of Rex Mundi. Master Physician Julien Sauniere stumbles onto a thousand year-old brotherhood dedicated to protecting the secret of the Holy Grail -- a secret that threatens to drown the world in blood Sauniere digs deeper and deeper into the mystery of the Holy Grail...