From The Jacket:
BASED ON THE THRILLING REAL-LIFE STORY OF SOCIALITE SPY NANCY WAKE, comes the newest feat of historical fiction from the New York Times bestselling author of I Was Anastasia, featuring the astonishing woman who killed a Nazi with her bare hands and went on to become one of the most decorated women in WWII.

In 1936 Nancy Wake is an intrepid Australian expat living in Marseille who has bluffed her way into a reporting job for Hearst newspaper when she meets the wealthy French industrialist Henri Fiocca. No sooner does Henri sweep Nancy off her feet and convince her to become Mrs. Fiocca than the Germans invade France and she takes yet another name: a code name.

Told in interweaving timelines organized around the four code names Nancy used during the war, Code Name Helene follows Nancy's transformation from journalist into one of the most powerful leaders in the French Resistance, known for her ferocious wit, her signature red lipstick, and her ability to summon weapons straight from the Allied Forces. But with power comes notoriety, and no matter how careful Nancy is to protect her identity, the risk of exposure is great-for herself and for those she loves.