The Tyrant's Tomb
Rick Riordan
The Trials of Apollo (4)
How to Break a Dragon's Heart
Cressida Cowell
How to Train Your Dragon (8)
The Hammer of Thor
Magnus Chase and the Gods of Asgard (2)
The Chalice of the Gods
Percy Jackson and the Olympians (6)
Fire Star
Chris D'Lacey
Percy Jackson's Greek Gods
Rick Riordan & John Rocco