9 from the Nine Worlds
Rick Riordan
Magnus Chase and the Gods of Asgard (5)
The Mark of Athena
The Heroes of Olympus (4)
The Lightning Thief
Percy Jackson and the Olympians (1)
The Tyrant's Tomb
The Trials of Apollo (4)
The Demigod Diaries
The Heroes of Olympus (0.0)