The Sea of Monsters Percy Jackson and the Olympians, Book 2 By Rick Riordan

After a summer spent trying to prevent a catastrophic war among the Greek gods, Percy Jackson finds his seventh-grade school year unnervingly quiet. His biggest problem is dealing with his new friend, Tyson, a six-foot-three, mentally challenged homeless kid who follows Percy everywhere, making it hard for Percy to have any "normal" friends.
Don't miss the other titles in the Percy Jackson and the Olympians series.©2006 Rick Riordan (P)2006 Random House, Inc. Listening Library, an imprint of the Random House Audio Publishing Company