Alan Gratz, the critically acclaimed and New York Times bestselling author of the blockbuster Refugee, returns with another dramatic multi-perspective thriller set during D-Day. D-Day, June 6, 1944, was the largest military operation in history. World collaboration, more than anything else, would bring down Hitler and the Axis countries. As a result, individuals — particularly children — from around the world contributed. Thousands of people worked together, from young US soldiers on the boats to spies in the French countryside. In this monumental, yet intimate, look at D-Day in time for the 75th anniversary of the operation, Gratz discusses the importance of teamwork and heroism in demolishing tyranny.