 In the summer of 1942 Gollancz came to realise that he and the rest of the world had been seriously underestimating the horrific extent of the Nazi persecution of the Jews.He explained in his 16,000 word pamphlet "Let My People Go", written over Christmas 1942, that between one and two million Jews had already been murdered in Nazi-controlled Europe and "unless something effective is done, within a very few months these six million Jews will all be dead.