Product: Heroes of Olympus: Books I-III: Collecting, The Lost Hero, The Son of Neptune, and The Mark of Athena (Heroes of Olympus, The)
This eBook set brings together the first three volumes in the wildly popular Heroes of Olympus series: The Lost Hero, The Son of Neptune, and The Mark of Athena. Longtime fans will want this collection and so will new readers just diving into the series.

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