The Unwanteds

Percy Jackson and the Lightning Thief (Book 1)

Island of Legends

Percy Jackson and the Sea of Monsters (Book 2)

Dragon Fire

His Dark Materials: The Amber Spyglass (Book 3)

Dragon Slayers

Percy Jackson and the Last Olympian (Book 5)

Island of Shipwrecks

The Mark of Athena (Heroes of Olympus Book 3)

Dragon Bones

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

Island of Dragons

The Wee Free Men: (Discworld Novel 30)

Dragon Captives

Percy Jackson and the Battle of the Labyrinth (Book 4)

The Island of Graves

The Blood of Olympus (Heroes of Olympus Book 5)

The Trap Door (Infinity Ring, Book 3)