Genevieve arrives at the Castle of the Holy Grail, little knowing the danger that lurks within. She finally lays eyes on the grisly horror of the true Holy Grail, unaware Lorraine's Imperial Guard have captured Julien the night before. Her days as a duchess might be coming to a very abrupt and unpleasant end!

Isabelle has escaped her father's men, but she is weak and desperate. Can she rally to save Julien and take on her father? She has a plan . . . and the duke, at the height of his power, surrounded by the might and majesty of the Castle of the Holy Grail, might not be as safe as he thinks!

* Special guest cover by Umbrella Academy creator Gerard Way!

The stage is set for the final showdown!