ISBN 9781484716212 books & textbook
The Heroes of Olympus, Book Two, The Son of Neptune: The Graphic Novel
Riordan, Rick Venditti, Robert Dodé, Antoine Collar, Orpheus
Disney-Hyperion /2017-02-21 Hardcover / 192 Pages
isbn-10: 1484716213 / isbn-13: 9781484716212
