Orford Ness is so secret a place that most people have never even heard of it. Yet, the role it played in inventing and testing weapons over the course of the twentieth century was far more significant and much longer than that of Bletchley Park. Nestled on a remote part of the Suffolk coast, Orford Ness operated for over eighty years as a highly classified research and testing site for the British military, the Atomic Research Establishment and, at one point, even the US Department of Defence. The work conducted here by some of the greatest ‘boffins’ of past generations played a crucial role in winning the three great wars of the twentieth century: the First, the Second and the Cold. This book reveals an incredible history, rich with ingenuity, intrigue and typical British inventiveness.