With their fourth year of studying magic at Abracadabra Academy underway, Maude and Adair can't help but be nervous about starting their advanced classes. And not only that, but they are about to embark on one of their greatest journeys yet...to teach their game of Wizard Wallop at another school, Sontom's School of Sorcery. They soon realize that this won't be just a fun vacation. The two friends sail across the Serpent Sea on a magnificent ship, experience odd foods from other lands, meet new friends, lead the Wallop tryouts, and study hard, all while trying to find out the meaning of a mysterious mark that has appeared on their skin. When they seem to have no answers to their own problems, Maude and Adair then discover something sinister is going on at Sontom's. Will they be brave enough to get to the bottom of the mysteries and fight the evil that is threatening their new friends? Or will they be sucked up in the magic themselves?