Camp Jupiter Classified
Rick Riordan
The Trials of Apollo (4.5)
The Last Olympian
Percy Jackson and the Olympians (5)
The Wyrm King
Tony DiTerlizzi & Holly Black
The Ironwood Tree
The Spiderwick Chronicles (4)
The Son of Neptune
The Heroes of Olympus (2)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
The Burning Maze
The Trials of Apollo (3)