How to Seize a Dragon's Jewel
Cressida Cowell
How to Train Your Dragon (10)
Neverseen
Shannon Messenger
Keeper of the Lost Cities (4)
The Dark Prophecy
Rick Riordan
The Trials of Apollo (2)
Nightfall
Keeper of the Lost Cities (6)
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)