"Welcome to an uncharted group of islands known as Poptropcia, where Oliver, Mya, and Jorge set sail for new sights, mayhem, and adventure. There's just one problem: none of the trio can figure out how their confounding map works, and they soon find thmeselves lost in a world they know very little about. To make matters worse, the nefarious Octavian is hot on their trail--but this time, it seems he isn't the only one who's after them. Will Oliver, Mya, and Jorge be able to outfox Octavian? Just who are these people who want to expel them from Poptrocia anyway?"--Back cover.