The Lightning Thief
Rick Riordan
Percy Jackson and the Olympians (1)
The Mark of Athena: The Heroes of Olympus [Book 3]
The Heroes of Olympus (4)
The Guard: A Selection Novella (HarperTeen Impulse)
Kiera Cass
The Selection (2.5)
The Lost Hero: The Heroes of Olympus [Book 1]
The Heroes of Olympus (1)