Slither lurks in woods and towns, hunting for human blood, but before he can feast on three lovely sisters, their dying father binds the monster to a bargain.

"Thomas Ward faces his ultimate test as he and his master prepare to deal with the Fiend once and for all"--

Told from the point of view of Alice, best friend "and true love" to Tom, the spook's last apprentice. Alice is the most powerful witch in the world, and she ventures into the dark itself. Alice Dean's destiny is intertwined with Tom Ward's. But he's going to be the next Spook, and she's a witch, possibly the most powerful one the world has ever seen. To rid the world of its greatest evil, the Fiend, Alice will venture into the depths of the dark...