The Red Pyramid
Rick Riordan
The Kane Chronicles (1)
The Dark Prophecy
The Trials of Apollo (2)
The Blood of Olympus
The Heroes of Olympus (5)
Nightfall
Shannon Messenger
Keeper of the Lost Cities (6)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco
The Crown of Ptolemy
Demigods and Magicians (3)
The Hammer of Thor
Magnus Chase and the Gods of Asgard (2)
The Hidden Oracle
The Trials of Apollo (1)