The Trials of Apollo Reading Order
by Rick Riordan
8 books
More by Rick Riordan
Percy Jackson and the Olympians Companion
9 books
Tres Navarre
7 books
Percy Jackson and the Olympians
7 books
The Heroes of Olympus
5 books
Percy Jackson and the Olympians: The Graphic Novels
5 books
Percy Jackson & Kane Chronicles Crossover
4 books