What did Annemarie learn about Peter in Number the Stars?

In "Number the Stars," Annemarie learns that Peter Neilsen is deeply committed to the resistance against the Nazis and is willing to risk his life for the cause. She realizes that he is not just a family friend but a courageous individual fighting for freedom and safety for the Jewish people. This revelation strengthens her understanding of bravery and the sacrifices made by those who oppose tyranny. Ultimately, Annemarie's admiration for Peter deepens as she comprehends the dangers he faces in his efforts to help others.