The Unwanteds

Percy Jackson and the Lightning Thief (Book 1)

Island of Legends

Percy Jackson and the Titan's Curse (Book 3)

Dragon Fire

Percy Jackson and the Last Olympian (Book 5)

His Dark Materials: The Amber Spyglass (Book 3)

The House of Hades (Heroes of Olympus Book 4)

Dragon Bones

The Blood of Olympus (Heroes of Olympus Book 5)

Island of Dragons

The Mark of Athena (Heroes of Olympus Book 3)

Dragon Captives

The Son of Neptune (Heroes of Olympus Book 2)

The Island of Graves

Percy Jackson and the Sea of Monsters (Book 2)

The Trap Door (Infinity Ring, Book 3)