This book was mostly okay. It's compelling as a history of a family's survival of the Holocaust, but the material dealing with the Resistance doesn't even start until 1945, after the Allies had retaken France. During the occupation, the Hoffnung family and friends were deeply active in the Resistance but Marthe Hoffnung-Cohn's account is more about the occupation itself. Her brothers were involved, and her fiance, and her sisters, and so on, but she doesn't go "behind enemy lines" until the French army is reorganized and takes her to the border to collect intel on troop movements. I don't dismiss this account; it seems accurate and it is quite compelling, but only about a third of the book is about her actions as a spy (the first half is about the rise of Hitler and the occupation of France, and the resultant impact on its Jewish community, including her own family, and the last quarter or so of the book is about her life after the defeat of Germany). There were also aspects to her account that I was deeply uncomfortable with; there are times where we can do nothing and that's horrible enough, but there are other events narrated in this book that have nothing to do with surviving the war or the war itself that left me disappointed. She did a lot during the Allied advance though, and that counts for a lot.
~Spoiler Warning but for future reference: her not saving the child from being sold for sex so she could keep working as a nurse, her not responding when her surrogate son tried to contact her for help, her using the Germans' tactics for collecting personal information against German civilians after the war, her wanting to separate children from their parent because she wanted to punish the parent, her record of declaring a vow and then abandoning it without any additional explanation besides time.