Mostly Harmless
Douglas Adams
The Hitchhiker's Guide to the Galaxy (5)
Gregor and the Prophecy of Bane
Suzanne Collins
Underland Chronicles (2)
Eldest
Christopher Paolini
Inheritance Cycle (2)
The Tyrant's Tomb
Rick Riordan
The Trials of Apollo (4)
The Son of Neptune
Heroes of Olympus (2)