Nightingale by Kristin Hannah
Hannah's historical novel is about two sisters who follow very different paths during the occupation of France. Vianne, the older one is married, has a daughter and lives outside a small town. Her husband has gone off to fight and Vianne finds herself in the position of having her house requisitioned by German officers. Her best friend and neighbor is Jewish. The younger sister, Isabelle who has either left or gotten kicked out of every school she was sent, uses her youthful recklessness to join the French resistance and becomes the "Nightingale". It is a story of love, heartbreak, family and unbreakable spirit.