What you should knowName: Herbie BrennanOccupation: AuthorFavourite book: The Crimson Petal and the White, by Michel Faber.Favourite subjects: Esoteric matters, psychical research, anomalies, Mac computers, other people and cats.Favourite journals: Journal of the Society for Psychical Research, Mac Format.Favourite holiday spot: Kenmare, County Kerry, Ireland.Number of books published: 108.Total copies sold worldwide: 7.5 million +.Herbie Brennan recently (written 2007, excerpt taken from The Restless Dead) celebrated publication of his 104th book, The Purple Emperor, a sequel to New York Times bestseller, Faerie Wars. A longtime student of sorcery, he discovered an old copy of the Lemegeton, or the Lesser Key of Solomon (a book that really does exist) in a junk shop and used it to conjure up "The Necromancers." The magical techniques described in the story are authentic, but cautiously edited to protect the reader.