The Mark of Athena
Rick Riordan
The Heroes of Olympus (4)
How to Twist a Dragon's Tale
Cressida Cowell
How to Train Your Dragon (5)
Unlocked
Shannon Messenger
Keeper of the Lost Cities (8.50)
How to Steal a Dragon's Sword
How to Train Your Dragon (9)
Camp Half-Blood Confidential: Your Real Guide to the Demigod ...
The Son of Sobek
Demigods and Magicians (1)
The Staff of Serapis
Hotel Valhalla Guide to the Norse Worlds: Your Introduction ...
Magnus Chase and the Gods of Asgard (4)
The Ship of the Dead
Magnus Chase and the Gods of Asgard (3)
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)