This Jurassic World novelty is perfect for dino fans! Fill the pen with water and use it to reveal hidden pictures as you read the story. Dinosaur fans will love this interactive storybook, full of fun facts and exciting scenes with your favourite dinosaurs from the Jurassic World franchise. Just fill the pen with water and reveal hidden pictures as you read the story. Then when the pages dry, you can refill the pen and do it all over again—the perfect mess-free activity for any Jurassic World fan on the go!