Lodestar
Shannon Messenger
Keeper of the Lost Cities (5)
How to Cheat a Dragon's Curse
Cressida Cowell
How to Train Your Dragon (4)
The Chalice of the Gods
Rick Riordan
Percy Jackson and the Olympians (6)
Unlocked
Keeper of the Lost Cities (8.5)
How to Be a Pirate
How to Train Your Dragon (2)
How to Speak Dragonese
How to Train Your Dragon (3)
Hero's Guide to Deadly Dragons
How to Train Your Dragon (6)
How to Train Your Dragon
How to Train Your Dragon (1)