Hero's Guide to Deadly Dragons
Cressida Cowell
How to Train Your Dragon (6)
The Lightning Thief
Rick Riordan
Percy Jackson and the Olympians (1)
Fire Star
Chris D'Lacey
The Ship of the Dead
Magnus Chase and the Gods of Asgard (3)
The Mark of Athena
The Heroes of Olympus (4)
The Serpent's Shadow
The Kane Chronicles (3)
The Son of Neptune
The Heroes of Olympus (2)
The Lost Hero
The Heroes of Olympus (1)
The Demigod Files
Percy Jackson and the Olympians (4.5)