Book excerpt: Join Peppa and her friends on a magical under-the-sea adventure! Use your water pen to reveal colourful underwater creatures, decorate mermaid tails and bring wonderful watery surprises to life over and over again! Just add water to use your water pen to reveal the colour. Let the pages dry and complete the adventure again with your reusable water pen (included). Don't miss these other brilliant Peppa books: Peppa Pig: Peppa's Underwater Friends: Sticker Activity Peppa Pig: Peppa at the Beach Peppa Pig: Peppa Goes Swimming