School Library JournalGr 10 Up—Theseus Cassio Lowood is a legacy ghost killer. He inherited his gift and his weapon, an athame, from his father, who was killed and devoured by a ghost when Cas was seven. The teen and his mother, a white witch, are constantly on the move following leads to unquiet spirits wreaking havoc on the innocent. After the killing with which the book opens, Cas and his mom head to Thunder Bay, Ontario, on the trail of a particularly violent ghoul nicknamed "Anna Dressed in Blood." Here, he finds friendship as well as his ghost. Just when readers think they've reached the denouement, Blake propels the plot in new and unexpected directions. The novel is a love story, a high-school buddy story, a story of revenge and tragedy, and a bildungsroman.