In PAW Patrol: Dive Into Puplantis by Matt Huntley, the pups travel to the magical underwater city of Puplantis to stop Mayor Humdinger from stealing a magical pearl. Featuring the new merpup Coral (Skye's cousin), the team uses their Aqua Pups gear to save the city from chaos. It is a 24-page storybook aimed at ages 3-7.