The Burning Maze is the third book in The Trials of Apollo series by Rick Riordan. The story follows the god Apollo, who has been cast down to earth as a mortal teenager named Lester Papadopoulos. In order to regain his place on Mount Olympus, he must restore five Oracles that have gone dark. With the help of some demigod friends, Lester and Meg must find the third emperor and an Oracle who speaks in word puzzles somewhere in the American Southwest. The book is available in both UK and US editions.