The Hidden Oracle
Rick Riordan
The Trials of Apollo (1)
The Red Pyramid
The Kane Chronicles (1)
The Sword of Summer
Magnus Chase and the Gods of Asgard (1)
The Legend of Sigurd and Gudrún
J. R. R. Tolkien
How to Cheat a Dragon's Curse
Cressida Cowell
How to Train Your Dragon (4)