*Note: Noisy Book batteries are light activated, please make sure the lighting is sufficient for this book.Noisy Peekaboo takes DK's popular Peekaboo books to the next level by filling them with sounds that will captivate and delight toddlers with a new noisy surprise after every turn of the page. From a roaring lion to four other noisy wild animals, Roar! Roar! has five fun sounds hiding under colorful flaps.