Gregor and the Marks of Secret
Suzanne Collins
Underland Chronicles (4)
The Last Olympian
Rick Riordan
Percy Jackson and the Olympians (5)
Gregor and the Prophecy of Bane
Underland Chronicles (2)
Sourcery
Terry Pratchett
Discworld (5)
The Burning Maze
The Trials of Apollo (3)
The Sea of Monsters
Percy Jackson and the Olympians (2)
The Lightning Thief
Percy Jackson and the Olympians (1)
The Dark Prophecy
The Trials of Apollo (2)
The Blood of Olympus
Heroes of Olympus (5)
The Mark of Athena
Heroes of Olympus (3)
The Son of Neptune
Heroes of Olympus (2)
Magnus Chase and the Sword of Summer
Magnus Chase and the Gods of Asgard (1)