Freedom is an illusion. It always comes at a price.
The Bartimaeus Trilogy is set in a fictional London, wherein magic, magicians and demons are normal occurrences in everyday life, and that they actively participate in events all throughout history. In a sense, the trilogy offers an alternative, witty and funny “explanation” on how monumental events have happened in history. The story follows Nathaniel and his djinni Bartimaeus from his childhood as a young noble magician to his transformation to becoming the corrupted John Mandrake, and eventually his redemption and return to good.