Rex Mundi is a quest for the Holy Grail told as a murder mystery. It is a tale of sin, murder and redemption in an alternate-history Paris where magic is real and the Catholic Church never lost its grip on power. This critically acclaimed volume follows Doctor Julien Sauniere as he investigates the theft of a medieval scroll from a Paris church. He stumbles onto a series of horrific ritual murders and an ancient secret society somehow connected to the mysterious scroll. They must not slip back into the shadows, or they will kill again...