The Blood of Olympus
Rick Riordan
The Heroes of Olympus (5)
How to Break a Dragon's Heart
Cressida Cowell
How to Train Your Dragon (8)
The Lost Hero
The Heroes of Olympus (1)
The Last Olympian
Percy Jackson and the Olympians (5)
The Demigod Files
Percy Jackson and the Olympians (4.5)
The Battle of the Labyrinth
Percy Jackson and the Olympians (4)
The Titan's Curse
Percy Jackson and the Olympians (3)
The Sea of Monsters
Percy Jackson and the Olympians (2)
The Lightning Thief
Percy Jackson and the Olympians (1)
The Chalice of the Gods
Percy Jackson and the Olympians (6)
Wrath of the Triple Goddess
Percy Jackson and the Olympians (7)