Pam Jenoff, New York Times bestselling author of The Lost Girls of Paris, returns with a riveting new tale of unfathomable sacrifice and unlikely friendship during World War II. 1942. Sadie Gault is eighteen and living with her parents amid the horrors of the Krakow Ghetto. When the Nazis liquidate the ghetto, Sadie and her mother are forced to seek refuge in the perilous sewers beneath the city. Ella Stepanek is an affluent Polish girl living a life of relative ease with her stepmother, who has developed close alliances with the occupying Germans. While on an errand in the market, she catches a glimpse of something moving beneath a grate in the street. Upon closer inspection, she realises it's a girl hiding. Ella begins to aid Sadie and the two become close, but as the dangers of the war worsen, their lives are set on a collision course that will test them in the face of overwhelming odds. Inspired by harrowing true stories, The Woman with the Blue Star is an emotional testament to the power of friendship and the extraordinary strength of the human will to survive.