Magisterium: The Copper Gauntlet

Crystal Keepers

Erak's Ransom: Book Seven

The Kings of Clonmel

The Sorcerer of the North: Book Five

The Siege of Macindaw: Book Six

Magnus Chase and the Sword of Summer (Book 1)

Magnus Chase and the Ship of the Dead (Book 3)

Magnus Chase and the Hammer of Thor (Book 2)

Percy Jackson and the Last Olympian (Book 5)

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

The Burning Maze (The Trials of Apollo Book 3)

The Tyrant's Tomb (The Trials of Apollo Book 4)

The Lost Hero (Heroes of Olympus Book 1)

The Dark Prophecy (The Trials of Apollo Book 2)

The House of Hades (Heroes of Olympus Book 4)

The Blood of Olympus (Heroes of Olympus Book 5)