In this age of information, a vast body of knowledge comes easily to hand. With the internet and 24-hour rolling news, scientific breakthroughs and technological innovations, DNA analysis and CCTV cameras, we may fool ourselves into thinking that we know all there is to know. This is of course hubris. In reality, the world is full of grey areas and enigmas, of unsolved mysteries and unresolved stories, ones which can fascinate, intrigue, and occasionally annoy us in equal measure. This book delves into these grey areas to examine the imponderable and sometimes unlikely stories of actual events and real people. From the gruesome murders committed by Jack the Ripper to the whereabouts of Lord Lucan, and from the loss of an entire continent to the mystery of the missing Nazi gold, we look through history in an effort to shed a little light on questions which, in all honesty, may never yield definitive answers.