A New York Times bestseller Alan Gratz, bestselling author of Refugee, weaves a stunning array of voices and stories into an epic tale of teamwork in the face of tyranny -- and how just one day can change the world.June 6, 1944: The Nazis are terrorizing Europe, on their evil quest to conquer the world. The only way to stop them? The biggest, most top-secret operation ever, with the Allied nations coming together to storm German-occupied...