Nathaniel, a magician's apprentice, summons up the djinni Bartimaeus and instructs him to steal the Amulet of Samarkand from the powerful magician Simon Lovelace.
In their continuing adventures, magician's apprentice Nathaniel, now fourteen years old, and the djinni Bartimaeus travel to Prague to locate the source of a golem's power before it destroys London.
Dangerous adventures continue for the djinni Bartimaeus and his master, seventeen-year-old Nathaniel, a powerful magician who is serving as England's minister of information.
