Only Thomas Ward is left. He's the last hope; the last apprentice. Can Thomas succeed? Will he learn the difference between a benign witch and a malevolent one? Does the Spook's warning against girls with pointy shoes include Alice? And what will happen if Thomas accidentally frees Mother Malkin, the most evil witch in the county?

Something is terrorizing the villages of the county. People are dying - covered in blood, their faces frozen in fear. But with not a wound on their bodies. Battling creatures of the dark is the job of the local spook, but 17-year-old Thomas Ward never finished his apprenticeship. It will be no easy task to earn the trust of the villagers and to defeat a monster that no one has ever seen. Yet Jenny - a seventh daughter of a seventh daughter - knows an awful lot about this new evil. And she's willing to share what she's learned with Tom…if he takes her on as his apprentice.

The Spook, Tom and Alice travel to Ireland, fleeing from the war in the County. The only thing protecting Tom and Alice is the fragile and precious bloodjar. They must remain together and the jar intact - otherwise they are both at the mercy of the Fiend himself.Meanwhile Tom is recruited to tackle the evil mage alliance, on a mission which ultimately leads him to the possession of the Spook's Blade. A sword with a dark side and a thirst of its own for blood...

In his job as the county's spook, 17-year-old Thomas Ward is used to battling boggarts, witches, and other creatures of the dark. But now he and his apprentice, Jenny, must team up with former rivals and enemies to fight the evil Kobalos warriors intent on destroying the county. The fight has cost the life of a strong ally, Grimalkin, the witch assassin. Determined to end the war with the demons, Tom leads Jenny and Alice to Pendle for one last epic clash. Loyalties will be tested, alliances will be broken, and not everyone will survive.

When young novice monk Brother Beowulf is sent to spy on Spook Johnson, he has no idea of the trouble he's about to find himself in. Johnson boasts to Wulf of his battles against demonic creatures and even seems to imprison local witches, though Wulf is sceptical. But the monsters Johnson claims to fight turn out to be very real indeed, and soon Wulf is forced to seek help from another young Spook, Tom Ward, who terrifies and charms him in equal measure. But the forces of the dark are many and it's not long until Wulf and Tom realise they've bitten off far more than they can chew.