When Ian visits the local lighthouse on a field trip, he learns about pirate treasure and discovers that the ghost stories he's always heard may be more real than he imagined. As if seventh grade wasn't tough enough, he has to deal with his parents' divorce, an annoying little sister, fake friends-and now curses and ghosts? The legends land closer to home when Ian finds the stolen Moon Goddess medallion in his backpack. Worse still when the medallion starts glowing and the lighthouse goes out. Can Ian reverse the curse of the medallion and save Castillo Bay from the ghost pirates threatening to storm the shore?