NOT KNOWN DETAILS ABOUT DEMON DJINN RING

Bartimaeus shortly overhears Nathaniel's birth-title, which greatly lowers Nathaniel's control in excess of him, because demons can then Solid counterspells. Matters soon get from hand and Bartimaeus and Nathaniel obtain themselves caught in the midst of magical espionage, murder, blackmail, and revolt. Alongside one another, the two of them defeat