One of BookBub's best historical novels of the year and Oprah magazine's buzziest books of the month. From the New York Times bestselling author of Mrs. Lincoln's Dressmaker, an enthralling historical saga that recreates the danger, romance, and sacrifice of an era and brings to life one courageous, passionate American--Mildred Fish Harnack--and her circle of women friends who waged a clandestine battle against Hitler...