Inheritance
Christopher Paolini
The Inheritance Cycle (4)
How to Twist a Dragon's Tale
Cressida Cowell
How to Train Your Dragon (5)
Nightfall
Shannon Messenger
Keeper of the Lost Cities (6)
The Hidden Oracle
Rick Riordan
The Trials of Apollo (1)
The Legend of Sigurd and Gudrún
J. R. R. Tolkien
Unfinished Tales