The Hidden Oracle
Rick Riordan
The Trials of Apollo (1)
9 from the Nine Worlds
Magnus Chase and the Gods of Asgard (5)
The Burning Maze
The Trials of Apollo (3)
The Hammer of Thor
Magnus Chase and the Gods of Asgard (2)
Hero's Guide to Deadly Dragons
Cressida Cowell
How to Train Your Dragon (6)