Slither (The Last Apprentice: Wardstone Chronicles #11)

My name is Slither, and before my tale is finished, you'll find out why . . .

Slither is not human. Far from the Spook-protected County, he preys upon humans, sneaking into their homes to gorge upon their blood while they sleep. When a local farmer dies, it's only natural that Slither should want to feast on his lovely daughters. But the farmer has offered him a trade: in return for taking the younger girls to safety, Slither can have the eldest daughter, Nessa, to do with as he wishes. Slither's promise takes him and Nessa on a treacherous journey where enemies await at every turn. Enemies that include Grimalkin, the terrifying witch assassin, still searching for a way to destroy the Fiend for good.

The latest instalment of the Wardstone Chronicles, the series that inspired the forthcoming movie The Seventh Son,starring Jeff Bridges, Ben Barnes and Julianne Moore.