The Burning Maze
Rick Riordan
The Trials of Apollo (3)
Unraveled
Shannon Messenger
Keeper of the Lost Cities (9.5)
The Chalice of the Gods
Percy Jackson and the Olympians (6)
The Letters of J. R. R.Tolkien
J. R. R. Tolkien & Christopher Tolkien & Humphrey Carpenter
How to Cheat a Dragon's Curse
Cressida Cowell
How to Train Your Dragon (4)
How to Speak Dragonese
How to Train Your Dragon (3)