You've just found a cave that leads to the center of the Earth! What happens next is up to YOU! Filled with excitement and hilarity, this compositional challenge lets you tell your very own story starring...YOU! Combining National Geographic Kids' photography and illustrations in colorful laugh-out-loud pages, this engaging, entertaining, and educational book introduces you to animals and people from all levels of Earth's layers, and invites you to enter a new world imaginatively by combining your story with theirs.