Unfinished Tales
J. R. R. Tolkien
The Seeing Stone
Tony DiTerlizzi & Holly Black
The Spiderwick Chronicles (2)
The House of Hades
Rick Riordan
The Heroes of Olympus (1)
The Staff of Serapis
Demigods and Magicians (1)
The Demigod Files
Percy Jackson and the Olympians (4.5)
The Lost Hero
The Son of Neptune
The Heroes of Olympus (2)
The Mark of Athena
The Heroes of Olympus (4)
The Serpent's Shadow
The Kane Chronicles (3)