Percy Jackson and the Sea of Monsters

Summary

Percy Jackson returns to Camp Half-Blood to find that the camp's protective barrier has been destroyed and his friend Grover has been captured by the Cyclops Polyphemus. Percy, Annabeth, and their new friend Tyson, who turns out to be his half-brother Cyclops, embark on a perilous journey to the Sea of Monsters to find the Golden Fleece, which can restore the camp's barrier and save Grover. Along the way, they encounter various mythological creatures and overcome numerous challenges. Ultimately, they succeed in retrieving the Fleece and bringing it back to the camp, thereby saving their friends and restoring the camp's defenses.