Lilac Girls by Martha Hall Kelly

This book was about three women during the time of World War II.  One of the women was in Manhattan, and the other two were in Germany and Poland.  As Hitler invades France, this is in turn affects Caroline in New York as she volunteers and does charity work at the French consulate.  Kasia, in Poland, joins the underground resistance, and gets herself and her mother and sister arrested and put into Ravensbruck, the women’s only concentration camp.  Herta, a doctor, gets assigned to work at Ravensbruck, and ultimately performs unthinkable operations on Kasia and her sister.  The book continues to switch between what is occurring in each of the women’s lives, and how their experiences will affect one another later in life.  There are heartbreaking moments throughout the story, but justice and human kindness does prevail in the end.