“The Bartimaeus Sequence is a trilogy of books by Jonathan Stroud”
NO MAJOR SPOILERS
The Bartimaeus Sequence consists of three books (The Amulet of Samarkand, The Golem’s Eye and Ptolemy’s Gate) and a prequel (The Ring of Solomon). One thing I definitely have to mention about the books are the footnotes. Said from the sarcastic mouth of the main character of the series, Bartimaeus, the footnotes are simply hilarious.