The Hidden Oracle
Rick Riordan
The Trials of Apollo (1)
Legacy
Shannon Messenger
Keeper of the Lost Cities (8)
The Lightning Thief
Percy Jackson and the Olympians (1)
The Seeing Stone
Tony DiTerlizzi & Holly Black
The Spiderwick Chronicles (2)
The Burning Maze
The Trials of Apollo (3)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
The Son of Neptune
The Heroes of Olympus (2)