What does the arrow mean in number the stars?

In "Number the Stars" by Lois Lowry, the arrow symbolizes direction and guidance, particularly in the context of the characters' journey during World War II. It represents the hope and courage needed to navigate through the dangers of Nazi-occupied Denmark. The arrow also reflects the idea of moving towards safety and freedom, as the characters seek to protect themselves and their loved ones. Overall, it serves as a powerful metaphor for resilience in the face of adversity.