In an alternate present day London, rule by magicians, apprentices are taken from their families and their names forgotten so that they can better control the demons that are the source of their magic. Nathaniel is a lot more clever and ambitious than his master knows, if he even cared to know; and conjures up a Djinni by name of Bartemeus and proceeds to get them both over their heads in murderous political intrigue. Neither are very likable characters, but Bartemeus is dryly sarcastic and funny. This one was a lot of fun. I'll be getting the next two for sure.