All five books in the #1 New York Times bestselling Heroes of Olympus saga by Rick Riordan in a paperback boxed set of heroic proportions. From The Lost Hero to the Blood of Olympus, this collection of Rick Riordan's mega-bestselling series will be a go-to gift for readers who have finished the Percy Jackson and the Olympians books. Told from multiple points of view, Percy Jackson's adventures continue and escalate as he teams up with Greek and Roman demigods to stop Gaea the earth mother from destroying the world.