Eldest
Christopher Paolini
The Inheritance Cycle (2)
Eragon
The Inheritance Cycle (1)
The Hammer of Thor
Rick Riordan
Magnus Chase and the Gods of Asgard (2)
The House of Hades
The Heroes of Olympus (1)
The Tower of Nero
The Trials of Apollo (5)
The Hidden Oracle
The Trials of Apollo (1)
The Dark Prophecy
The Trials of Apollo (2)
The Burning Maze
The Trials of Apollo (3)
The Tyrant's Tomb
The Trials of Apollo (4)
Camp Jupiter Classified
The Trials of Apollo (4.5)