Louise's War — Sarah R. Shaber

It's 1942. Louise Pearlie, a young widow, has come to Washington DC to work for the legendary Office of Strategic Services, the precursor to the CIA. When she discovers a document concerning the husband of her college friend Rachel Bloch--a young French Jewish woman she is desperately worried about--Louise realizes she may be able to help Rachel escape from Vichy France. But then a colleague whose help Louise has enlisted is murdered, and she realizes she is on her own, unable to trust anyone...