The Sea of Monsters The story is about when Percy finds out that he has a brother. The main characters are Tyson, Grover, and Annabeth. Tyson can be unharmed by fire, Grover gets caught by a boy cyclops who eats satyrs, and then calls Percy in his dreams for help. Annabeth comes to Percy's school. Weird, right? The problem is when Thalia (the tree) was dying so Percy, Annabeth, and Tyson have to go on a journey to get the Golden Fleece. I liked this story because its really cool like when Hermes comes and his phone has snakes named George and Martha.