Spook's Apprentice

This story is about Tom Ward, the seventh son of a seventh son. Tom's father finds him work as an apprentice to the Spook - which is similar to an exorcist - someone who deals with witches, boggarts and ghosts, etc. Whilst training with the Spook, he is tricked into freeing the evil witch, Mother Malkin, from her pit in the Spook's garden.