Percy, Annabeth, and Thalia have been given orders to go help Grover as he was sent to a school to scout out for more new half-bloods. But trouble is around the corner when a chimera, disguised as a teacher, tries to kill the two new half-bloods and ends up disappearing and capturing Annabeth. Returning back to camp without Annabeth and with a whole group of Artemis's Hunters instead, Zoe (Artemis's head Hunter) is given the quest to follow the Goddess and stop the next step in Kronoss' plans to take over Olympus where they must travel to San Francisco, the most dangerous place for half-bloods to go. And Percy isn't invited to join them, how is he going to save Annabeth?
Book three felt similar to the first book, you can only go so different it seems on quests in this series. They have to travel from New York to San Francisco (like New York to LA). They have to travel fast and there is a time limit. They get help from the Gods and there is major trouble from other's of the Gods, too.
The difference here is that Percy is "joined" by Zoe instead of Annabeth and Zoe is much different than Annabeth is. Zoe has her own background from ages past with a lot of baggage that comes along with it. I really like Zoe's character. Many of the other characters grow too which is nice because I feel like they didn't grow much in the last two books. Here there was some real character development for pretty much everyone.
I also really liked Apollo. He's always been a fun one to talk about and I think Rick Riordan did a good job making him fun and likeable.
