The invisible woman

"March 1944. Virginia Hall wasn't like the other young society women back home in Baltimore - she traded a safe life for adventure in Europe, and when her beloved second home is thrust into the dark days of war, she leaps in headfirst. Once she's recruited as an Allied spy, subverting the Nazis becomes her calling. But even the most cunning agent can be bested, and in wartime trusting the wrong person can prove fatal. While her future is anything...