The Tyrant's Tomb
Rick Riordan
The Trials of Apollo (4)
The Demigod Diaries
The Heroes of Olympus (0)
The House of Hades
The Heroes of Olympus (1)
Hero's Guide to Deadly Dragons
Cressida Cowell
How to Train Your Dragon (6)
How to Speak Dragonese
How to Train Your Dragon (3)
How to Cheat a Dragon's Curse
How to Train Your Dragon (4)
The Red Pyramid
The Kane Chronicles (1)