Rick Riordan's Mythological Series Collection-

23 BOOKS AS VOTED BY THE GOODREAD READERS VOTING

Percy Jackson and the Olympians Series (7 Titles)

Percy Jackson's Companion Books (3 Titles)

Percy Jackson and Kane Chronicles Crossovers (2 Titles)

Percy Jackson - Short Stories (2 Titles)

The Heroes of Olympus Series (6 Titles)

The Kane Chronicles (3 Titles)