The Blood of Olympus (Heroes of Olympus Book 5) - Rick Riordan

The Blood of Olympus (Heroes of Olympus Book 5) - Rick Riordan : Series: Heroes of Olympus Book #5 The Blood of Olympus is the fifth book in the bestselling Heroes of Olympus series - set in the high-octane world of Percy Jackson. Though the Greek and Roman crew members of the Argo II have made progress in their many quests, they still seem no closer to defeating the earth mother, Gaea. Her giants have risen - all of them - and they're stronger than ever.