Hotel Valhalla Guide to the Norse Worlds: Your Introduction ...
Rick Riordan
Magnus Chase and the Gods of Asgard (4)
Eldest
Christopher Paolini
The Inheritance Cycle (2)
Wrath of the Triple Goddess
Percy Jackson and the Olympians (7)
How to Cheat a Dragon's Curse
Cressida Cowell
How to Train Your Dragon (4)
The Chalice of the Gods
Percy Jackson and the Olympians (6)
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 Battle of the Labyrinth
Percy Jackson and the Olympians (4)
The Last Olympian
Percy Jackson and the Olympians (5)
The Demigod Files
Percy Jackson and the Olympians (4.5)