The Battle of the Labyrinth by Rick Riordan

Who knew a Labyrinth could be so vast and so complicated?  This book puts it all into perspective on how big the Labyrinth in the book is.  It's huge and extends to many cities far apart (from San Fransisco to New York to New Mexico and bigger).

Annabeth gets a quest and takes along Percy Jackson, Tyson (Percy's half brother) and Grover.  The quest is to go through the Labyrinth to get to Daedalus to prevent Luke from getting the string that would help him get through the Labyrinth to attack Camp Half-Blood. 

There's fun adventure and even Percy's new friend, Rachel, helps out in the Labyrinth.  We also learn more about Nico di Angelo.

I liked this book in the series a lot.  It was easy to get carried away in the story.  There's more romance in this book.  That makes it even better.

Now on to the next one!!!