The Blood of Olympus: Chapters 9–20

In the fifth book of the Heroes of Olympus series, a group of demigods battles against giants and the goddess Gaia, who is intent on destroying the earth.

Here are links to our lists for the book: Chapters 1–8, Chapters 9–20, Chapters 21–32, Chapters 33–44, Chapters 45–58

Here are links to our lists for The Heroes of Olympus series by Rick Riordan: The Lost Hero, The Son of Neptune, The Mark of Athena, The House of Hades, The Blood of Olympus

And here are links to our lists for the Percy Jackson & the Olympians series by Rick Riordan: The Lightning Thief, The Sea of Monsters, The Titan’s Curse, The Battle of the Labyrinth, The Last Olympian