"The Last Apprentice: Revenge of the Witch" is the first book in the The Last Apprentice series by Joseph Delaney. It follows a young boy named Tom Ward, who is the seventh son of a seventh son, making him a natural candidate to become an apprentice to the local Spook, a person who protects the community from dark forces. In this story, Tom learns about the dangers of witchcraft and the supernatural as he trains under the Spook. He faces various challenges, including confronting a powerful witch named Mother Malkin, who seeks revenge against the Spook and his apprentice. The book combines elements of horror and fantasy, appealing to young readers.