The House of Hades
Rick Riordan
The Heroes of Olympus (1)
The Crown of Ptolemy
Demigods and Magicians (3)
How to Speak Dragonese
Cressida Cowell
How to Train Your Dragon (3)
The Throne of Fire
The Kane Chronicles (2)
The Sea of Monsters
Percy Jackson and the Olympians (2)
The Lightning Thief
Percy Jackson and the Olympians (1)