When witches steal Tom's inheritance and kidnap his relatives, Tom, the Spook, and Alice set out for Pendle Hill, a particularly dangerous district, in hopes of preventing the three witch clans from uniting to raise the Fiend, the Devil himself, thus bringing about an age of darkness.

Young Tom, the seventh son of a seventh son, starts work as an apprentice for the village spook, whose job is to protect ordinary folk from "ghouls, boggarts, and all manner of wicked beasties."

As creatures of the dark hunt for the witch assassin Grimalkin, who carries the captured Fiend's head, Spook's apprentice Tom tries to find a way to finish this terrifying evil once and for all.

"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 county has ever seen. To rid the world of its greatest evil, the Fiend, Alice will venture into the depths of the dark"--Provided by publisher.

A dangerous few months lie ahead-ones which some of us will be hard-pressed to survive. Thomas Ward has served as the Spook's apprentice for three years. He has battled boggarts, witches, demons, and even the devil himself. Tom has enemies: The Fiend stalks him, waiting for a moment of weakness. The terrifying Morrigan, goddess of witches, warned him never to step foot on her homeland, Ireland. But now war has consumed their own country, and Tom,...

Returning from Greece, Tom and the Spook find that their home, including the Spook's precious library of knowledge, has been burned to the ground, and that their battle against the denizens of the dark must continue.

A nightmare-plagued eldest farmer's daughter, Nessa, is sacrificed to the blood-drinking Slither, who agrees to help guide Nessa's younger sisters to safety in return.

Ready to be presented to the last apprentice, Tom Ward, the spook's notebook contains instructions for vanquishing boggarts, witches, the unquiet dead, and other dark creatures and spirits.