School's out and Trot and Cap'n Bill are looking forward to a carefree summer of surfing. But trouble surfaces when Grandpa hooks a message in a bottle while fishing. Clia, the Sea Siren princess, and Anko, King of the Sea Serpents, need their help: Merla, their Sea Siren friend, has been kidnapped! Trot, her cat, and her grandfather join the rescue effort which takes them to an old abandoned amusement park island resort, where plans are afoot for a grand re-opening. But who is behind this development? Like Sea Sirens, Sky Island was inspired by an L. Frank Baum novel of the same name. This charming graphic novel weaves fantastical ocean creatures, quirky but sympathetic main characters, a fun amusement park setting, and fast-paced adventure into an imaginative, world-building story.