When they are little girls, Cibi, Magda and Livia make a promise to their father - that they will stay together, no matter what.

Years later, the three sisters find themselves reunited in the horrific confines of Auschwitz, facing unimaginable cruelty and hardship. Remembering their father, they make a new promise, this time to each other: That they will survive.

From the bestselling Heather Morris, author of The Tattooist of Auschwitz and Cilka's Journey, comes an astonishing new story of courage and fierce family bonds that will both break your heart and stand as a testament to the power of love and devotion that can endure and overcome, even in a place without hope.