"Grover is being held prisoner on a faraway island and the satyr's only hope is his best friend, Percy Jackson. Will Percy and Annabeth be able to navigate the treacherous Sea of Monsters to rescue him? The second adventure in Rick Riordan's blockbuster Percy Jackson and the Olympians series has been outfitted in a deluxe edition with a foiled slipcase and cover, stained edges, a marker ribbon, ten pages of new full-color illustrations, and a note from Rick." -- Provided by publisher.