Two women in Nazi-occupied Paris created a daring escape line that rescued dozens of Allied servicemen. With one still in a German prison camp, the other wrote a book about it—a memoir built on fabrications. Now the bestselling author of Eighty Days shares their incredible, never-before-told full story. “A heart-pounding tale of betrayal that is impossible to put down.”—Lynne Olson, author of Madame Fourcade's Secret War Etta Shiber and Kate Bonnefous are the unlikeliest of heroines: two seemingly ordinary women, an American widow and an English divorcée, living quietly together in Paris. Yet during the Nazi occupation, these two friends find themselves unexpectedly plunged into the whirlwind of history. With the help of a French country priest and others, they set out to rescue British and French soldiers trapped behind enemy lines—some of whom they daringly smuggle through Nazi checkpoints hidden inside the trunk of their car. Ultimately the Gestapo captures them both. After eighteen months in prison, Etta is returned to the United States in a prisoner exchange. Back home, hoping to bring attention to her friend Kitty’s bravery, she publishes a memoir about their work. Paris-Underground becomes a publishing sensation and Etta a celebrity. Meanwhile Kate spends the rest of the war in a Nazi prison, entirely unaware of the book that has been written about her—and the deeds that have been claimed in her name. In researching this story, Matthew Goodman uncovered military records and personal testimonies that reveal, for the first time, the shocking truth behind Etta’s memoir and the unexpected, far-reaching consequences of its publication. More than just a story of two women’s remarkable courage, Paris Undercover is a vivid, gripping account of deceit, betrayal, and personal redemption.