If you're looking for something suitable to read around Hallowe'en, here are a few suggestions.
I'll begin with Neil Gaiman's The Graveyard Book which, as you'll see here, had me in raptures when I read it a few years ago. Ostensibly for children but just as entertaining for adults if I'm anything to go by, it's a terrific piece.
Last month I mentioned Stacy Schiff's The Witches: Salem, 1692; it will be out in a few days' time, and looks to be a comprehensive and highly detailed account of the Salem witch trials, "examining the legal and social ramifications of the trials, the truth about witchcraft, the world of adolescent girls and how the events of 1692 shaped America's future and its relationship with the mother country."
For a very fun read about witches and 'others', try Deborah Harkness' A Discovery of Witches. I'm ashamed to say that although I have read it twice (which says a great deal for starters) I've yet to get to Shadow of Night and The Book of Life, the other two books which make up the All Souls Trilogy, though both are here on the shelf beside me, but that's nothing to do with lack of interest. If you haven't come across it, there's an introductory post on it here and a fuller one here.