The Lost Hero is by Rick Riordan. The first book in Riordan's new Heroes of Olympus series. The next chapter in the Percy Jackson saga. Jason, Piper, and Leo are half-bloods. They find themselves attacked by monsters and end up at Camp Half-Blood where they are told they are demigods. Percy has gone missing and Annabeth is searching for him. The three new heroes begin a quest to rescue Hera before the world ends. If you enjoyed the Percy Jackson series you will enjoy this one as well.
Ratings: 7th grade - 6 out of 10.