Number the Stars is author Lois Lowry's fictional account of actual historic events that took place in Denmark during World War II. The book follows two families, the Johansen's and the Rosen's, as they struggle for survival against the oppressive and invasive Nazi occupation. When it is discovered that the Nazis plan to "relocate" all of Copenhagen's Jewish population, the Johansen's realize they must do everything they can to help their Jewish neighbors, the Rosen's. The story is told through the perspective of the Johansens' eldest daughter, Annemarie. As the story progresses, Annemarie grows up fast, learning to be brave in the face of certain danger and realizing the importance of doing the right thing, even when circumstances are difficult.