Dark Fire
Chris D'Lacey
The Demigod Files
Rick Riordan
Percy Jackson and the Olympians (4.5)
How to Steal a Dragon's Sword
Cressida Cowell
How to Train Your Dragon (9)
The Burning Maze
The Trials of Apollo (3)
The Lightning Thief
Percy Jackson and the Olympians (1)
The Sea of Monsters
Percy Jackson and the Olympians (2)
The Titan's Curse
Percy Jackson and the Olympians (3)
The Last Olympian
Percy Jackson and the Olympians (5)
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)