In the book number stars what brave thing did Annmarie have to do?

In the book "Number the Stars," written by Lois Lowry, the brave thing that Annmarie had to do was help hide and transport her Jewish friend Ellen Rosen to safety during the Nazi occupation of Denmark. Annmarie had to put herself in danger in order to ensure the safety of Ellen and her family. This involved risking discovery by Nazi soldiers during the dangerous process of moving Ellen from one location to another in order to keep her hidden from imminent deportation. Despite her fear, Annmarie remained courageous and committed to doing whatever it took to protect her friend during the difficult time