The librarian walks the streets of her beloved Paris. An old lady with a limp and an accent, she is invisible to most. Certainly no one recognizes her as the warrior and revolutionary she was, when again and again she slipped into the Jewish ghetto of German-occupied Vilnius to carry food, clothes, medicine, money, and counterfeit documents to its prisoners. Often she left with letters to deliver, manuscripts to hide, and even sedated children swathed...