The Hotel Dancer: Absolutely heartbreaking World War 2 historical fiction

She checks the ties on her dancing shoes under the spotlight at the Germans' favorite hotel. She moves automatically, her body remembering the steps, even though her mind is screaming at the danger she is in. The soldiers must never know she is Jewish. And that she is helping her fellow Jews escape... Warsaw, 1943: Every night, Franceska dances at the most dangerous hotel in Poland. She knows which floorboards creak on the stage, which waiters are clumsy, and which officers like to be smiled at. After her performance, one strap of her black silk dress sliding off her shoulder, she sips champagne with the terrifying SS commander who is determined to rid the streets of Jewish people. She charms him in the soft candlelight, hoping he might lead her to her missing sister. And she prays he misses the glances she exchanges with the man in the corner of the dining room, who is helping her smuggle Jewish people into the hotel and to safety. The war has stolen so much from Franceska. She has almost nobody left in the world, and little to lose.