July 2005. Within the Pyrenees mountains close to Carcassonne, Alice, a volunteer at an archaeological dig, stumbles right into a cave and makes a startling discovery-two crumbling skeletons, unusual writings on the partitions, and the sample of a labyrinth.
Eight hundred years earlier, on the eve of a brutal campaign that can rip aside southern France, a younger lady named Alais is given a hoop and a mysterious e-book for safekeeping by her father. The e-book, he says, incorporates the key of the true Grail, and the ring, inscribed with a labyrinth, will establish a guardian of the Grail. Now, as crusading armies collect exterior the town partitions of Carcassonne, it’ll take an amazing sacrifice to maintain the key of the labyrinth secure.