The Heroes of Olympus: 5-Book Series by Rick Riordan (Kindle eBooks) $5

The Heroes of Olympus: 5-Book Series by Rick Riordan (Kindle eBooks) $4.95 for all 5 books or $0.99 each. The Lost Hero, The Son of Neptune, The Mark of Athena, The House of Hades, The Blood of Olympus