The book's cover

"Jan Karski was a World War 2 Polish Resistance fighter whose 1942 mission was to witness the Warsaw Ghetto and a concentration camp first hand, and then to report to the Allies what he had seen the industrially organised genocide of the Jews in Poland. He was to be the messenger of their fate and in his hands were their hopes of rescue. But history confirms that the message was delivered but never heard, the lack of its impact haunted Jan Karski for the rest of his life".