Each night as the sun goes down and the sky grows dark, STARS come out. But what are stars? And where are they? An innovative pop-up book from the maker of The Story of Everything and The Story of Things. Ages 5Each night as the sun goes down and the sky grows dark, STARS come out. But what are stars? And where are they? An innovative pop-up book from the maker of The Story of Everything and The Story of Things. Ages 5