Lise is Annemarie's best friend and the person who helps Annemarie's family smuggle Annemarie's Jewish friend, Ellen Rosen, to Sweden.
The author, Lois Lowry, describes Lise as:
* Brave and resourceful: She is willing to take risks to help Ellen, even when it is dangerous.
* Loyal and devoted: She is fiercely loyal to Annemarie and her family, and she is always there for them.
* Kind and compassionate: She cares deeply for Ellen and wants to do whatever she can to help her.
* Smart and quick-witted: She is able to think on her feet and come up with solutions to difficult problems.
* Quiet and observant: While not always the loudest voice, she is keenly aware of her surroundings and the needs of others.
Throughout the story, Lise displays remarkable courage and maturity, embodying the true spirit of friendship and resistance during a difficult time.