The Titan's Curse
This series gets better and better one after the other. but then, Titan's Curse is another cliffhanger. Of the first three books, this is my new favorite. And this kinda makes me jealous of Percy and the other half-bloods because they're witness to Greek myth(my fave topic back in high school lit). Great adventure, Percy! Blackjack's really the horse!!!! hahaha. but I miss Rainbow tho.P.S. I badly want to ship Thalia and Percy.
