NEW The Heroes of Olympus Complete Series Boxed Set, by Rick Riordan. 10th Anniversary Edition: The Lost Hero (2010/2019, 557 pages), The Son of Neptune (2011/2019, 521 pages), The Mark of Athena (2012/2019, 586 pages), The House of Hades (2013/2019, 597 pages), and The Blood of Olympus (2014/2019, 516 pages). Includes exclusive bonus poster with 10th anniversary art. 5 paperbacks in a sturdy slipcover/box. Disney Hyperion. New, unread condition. Text only. Cash or Venmo. Discount on multiple items.