Percy Jackson and The Olympians: The Lightning Thief

Yesterday I just finished the first book to the Percy Jackson series and it was amazing!!! I know, I know, it's a young adult book and my ten year old sister's fourth grade friends are reading it, but it was really a good book. I don't usually look at books that are past 200 pages but this (a 400 page book) sounded really good. If you don't know about it, it's about a sixth grader named Percy Jackson who discovers he is the son of Poseidon. He embarks on a journey to the Underworld to retrieve the master lightning bolt from Zeus. Yes, the Greek gods are very much alive in this book. Their kingdom of Mount Olympus is above the Empire State building and the Underworld is in the City of L.A. They move their kingdoms to wherever civilization brings them. On the journey, him and his two friends encounter Greek monsters like Medusa and Cerberus. If you don't know a lot of Greek stories, this book will have you know a lot of them by the end of the book. If you don't want to read it, the movie version comes out February 12, 2010.