The Curse of Brimstone (The Curse of Brimstone #8)

Talk about a horror show-and the demonic lead character ain't even the half of it! Siblings Joe and Annie find themselves in a town terrorized by the omnipotently evil Bel Dame, who uses an army of the maimed undead to do her bidding-such as torturing Joe (a.k.a. Brimstone). The Bel Dame decides to teach our fiery hero a lesson in sacrifice, and it's one so horrifying, it may just rip the brother-sister duo apart for good.