9 from the Nine Worlds
Rick Riordan
Magnus Chase and the Gods of Asgard (5)
How to Steal a Dragon's Sword
Cressida Cowell
How to Train Your Dragon (9)
The Wrath of Mulgarath
Tony DiTerlizzi & Holly Black
The Spiderwick Chronicles (5)
The Sea of Monsters
Percy Jackson and the Olympians (2)
Camp Half-Blood Confidential: Your Real Guide to the Demigod ...
The Staff of Serapis
Demigods and Magicians (1)
The Son of Sobek
The Ship of the Dead
Magnus Chase and the Gods of Asgard (3)
Hotel Valhalla Guide to the Norse Worlds: Your Introduction ...
Magnus Chase and the Gods of Asgard (4)
The Chalice of the Gods
Percy Jackson and the Olympians (6)
Wrath of the Triple Goddess
Percy Jackson and the Olympians (7)
The Son of Neptune
The Heroes of Olympus (2)
The Throne of Fire
The Kane Chronicles (2)
The Burning Maze
The Trials of Apollo (3)