In Percy Jackson and the Sea of Monsters, Percy is about to finish his 7th grade at Merriweather Prep. But when he starts playing Dodgeball,Percy realizes something is seriously wrong.Then surprisingly Annabeth shows up which brings more bad news. Thailas tree that guarded the only safe place for Demigods has been poisoned. So Percy Jackson and his friends must travel to the Sea of Monsters and take the Golden Fleece before the only safe place for Half-Bloods is destroyed.