On August 25, 1944, Rose Valland, a woman of quiet daring, found herself in a desperate position. From the windows of her beloved Jeu de Paume museum, where she had worked and ultimately spied, she could see the battle to liberate Paris thundering around her. The Jeu de Paume, co-opted by Nazi leadership, was now the Germans’ final line of defense. Would the museum curator be killed before she could tell the truth—a story that would mean nothing less than saving humanity’s cultural inheritance? Based on troves of previously undiscovered documents, The Art Spy chronicles the brave actions of the key Resistance spy in the heart of the Nazi’s art looting headquarters in the French capital. A veritable female Monuments Man, Valland has, until now, been written out of the annals, despite bearing witness to history’s largest art theft. While Hitler was amassing stolen art for his future Führermuseum, Valland, his undercover adversary, secretly worked to stop him. At every stage of World War