The Sun and the Star
Rick Riordan & Mark Oshiro
Nico Di angelo Adventures (1)
The Crown of Ptolemy
Rick Riordan
Demigods and Magicians (3)
The Blood of Olympus
The Heroes of Olympus (5)
The House of Hades
The Heroes of Olympus (1)
Percy Jackson's Greek Gods
Rick Riordan & John Rocco