The Sea of Monsters 2nd Book

Percy Jackson's seventh-grade school year has been relaxing, for a change. He's been able to live with his mom in New York City, and he hasn't been attacked by monsters even once. That all changes on the last day of school, when an innocent dodgeball game turns into an explosive conflict that sends Percy racing back to Camp Halfblood, the summer camp for kids who are, like Percy, half-mortal and