The "Heroes of Olympus Complete Collection" includes 5 books by Rick Riordan, suitable for ages 9-14. Published by Puffin in 2015, the collection features fiction novels in English that explore themes of spirituality, action, adventure, and mythology, including Greek gods and folklore. The set is a paperback format with special attributes as a collection/box set, offering a diverse blend of genres like fantasy, mystery, and paranormal elements for young readers interested in urban fiction and ancient Greek tales.
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