The deepest mystery of the Grail finally unfolds itself to Julien as he recovers from a nearly lethal bout of alcohol withdrawal. The weird, isolated village of the Grail has been held by the Dukes of Lorraine in complete secrecy for untold centuries… but why? If Julien can win the trust of the village inhabitants, if he can avoid being captured by Lorraine's brutal Imperial Guard, he just might find out!

And he’ll have some help from none other than Lorraine's banished daughter, Isabelle! Isabelle is a powerful sorceress, and she has motive enough to hate her father. But are her goals and Julien’s the same?