The Battle of the Labyrinth by Rick Riordan

When Percy Jackson runs into a mortal "friend" at freshman orientation, things get strange. The final battle between titans and gods is drawing near, and Camp Half Blood learns that Kronos somehow plans to attack the camp itself, piercing its very borders. Percy & co. must go underground into the never-ending, ever-changing maze of the Labyrinth in an attempt to stop them. Though there is no way to avoid the Battle of the Labyrinth.

In my opinion, each book is better than its preceder, with the exception of Sea of Monsters. Although, this is where it starts to get a little annoying that every stinkin' monster is impossible to defeat, when of course they defeat it anyways.

I was glad that Rick made one of the books about the Labyrinth, and I liked how it was made to be a living maze that always was expanding, and while I'm on it, now is a good time to mention how clever it was to make the Labyrinth, Mt. Olympus, and other Greek mythological places move over to America. Though I wonder, how does this make people in other countries feel when they read it?