Dive under the sea to join Ariel and her friends as they explore sunken ships, collect treasures, and prepare for a very special castle concert. This interactive storybook comes with a special water pen that readers can use to reveal hidden objects on the waterproof pages. When the pages dry, the objects disappear once more, inviting readers to refill their pen and live the adventure again! It’s the perfect mess-free activity for any Little Mermaid fan on the go.