Zosia Lewandowska knows the brutal realities of war all too well. Within weeks of Germany's invasion of her Polish homeland, she lost the man she loves. As ghetto walls rise and the occupiers tighten their grip on the city of Krakow, Zosia joins pharmacist Tadeusz Pankiewicz and his staff in the heart of the Krakow ghetto as they risk their lives to aid the Jewish people trapped by Nazi oppression.

Hania Silverman's carefree girlhood is shattered as her family is forced into the ghetto. Struggling to survive in a world hemmed in by walls and rife with cruelty and despair, she encounters Zosia, her former neighbor, at the pharmacy. As deportation winnow the ghetto's population and snatch those she holds dear, Hania's natural resiliency is exhausted by reality.

Zosia and Hania's lives intertwine as they face the griefs and fears thrust upon them by war, until one day, they are forced to make a desperate choice . . . one that will inexorably bind them together, even as they are torn apart.

Amanda Barratt's meticulous research and lush, award-winning writing shine once again in this moving look at a group of unsung heroes who fought for hope and humanity in the most harrowing of times.

On a golden August morning in 1939, sisters Antonina and Helena DÄ…browska send their father off to defend Poland against the looming threat of German invasion. The next day, the first bombs fall on Warsaw, decimating their beloved city and shattering the world of their youth. When Antonina's beloved Marek is forced behind ghetto walls along with the rest of Warsaw's Jewish population, Antonina turns her worry into action and becomes a key figure in a daring network of women risking their lives to shelter Jewish children. Helena finds herself drawn into the ranks of Poland's secret army, joining the fight to free her homeland from occupation. But the secrets both are forced to keep threaten to tear the sisters apart--and the cost of resistance proves greater than either ever imagined. Shining a light on the oft-forgotten history of Poland during WWII and inspired by true stories of ordinary individuals who fought to preserve freedom and humanity in the darkest of times, The Warsaw Sisters is a richly rendered portrait of courage, sacrifice, and the resilience of our deepest ties.