Percy Jackson and the Olympians The Sea of Monsters by Rick RiordanAfter a year spent trying to prevent a catastropic 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. But things don't stay quiet for long. Percy soon discovers there is trouble at Camp Half Blood: The magical borders