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The Nightingale (2015) is a historical fiction novel by American author Kristin Hannah published by St. Martin's Press. The book tells the story of two sisters in France during World War II and their struggle to survive and resist the German occupation there. The book was inspired by accounts of a Belgian woman, Andrée de Jongh, who helped downed Allied pilots escape Nazi territory. The Nightingale entered multiple bestseller lists upon release. As of 2021, it has been published in 45 languages and sold more than 4.5 million copies worldwide.