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For readers of The Nightingale by Kristin Hannah, The Paris Library, and The Paris Bookseller, a story of love, betrayal, and sacrifice. In wartime Paris, a woman is entrusted with saving the Mona Lisa during the Nazi occupation—until her first love walks back into her life, now wearing the uniform of the enemy.

She feels the weight of her responsibility, the weight of her secret. With bitter hands, she wraps up the portrait, closes the case, and clicks the latches in place.

1910: Eighteen-year-old Mathilde has escaped her lonely provincial childhood to become a painter in Montmartre. Moving in bohemian circles, she models for Picasso and lives hedonistically amongst the artists, writers, and intellectuals of Paris. But when the Mona Lisa is stolen from the Louvre, and a number of Mathilde’s friends and lovers become suspects, life will never be the same again.

1940: As the enemy marches into Paris, Mathilde, now an archivist at the Louvre, is tasked with the evacuation of hundreds of priceless masterpieces to the Chateau de Chambord. With her, she carries a secret: the Mona Lisa is now under her sole protection, safe from looters. Nobody must discover its whereabouts. But when a face from her past arrives at the chateau, dressed in Nazi uniform, Mathilde finds herself agonisingly torn between love and duty.