London, 1880, and eighteen-year-old Luke Lexton is about to endure his initiation into the Malleus Maleficorum - the secretive brotherhood devoted to hunting witches, and the organisation that will help Luke take revenge on the witch who murdered his parents. His final test is to pick a name at random from the Book of Witches, a name he must track down and kill within a month, or face death himself.
Luke picks out sixteen-year-old Rosa Greenwood,...