This book reads like a detective story, a thriller or science fiction. Yet it's a work of non-fiction based on a decade's worth of investigation, interviews and archive research. The fact that the author, Nick Cook, is Aviation Editor for Jane's Defence Weekly gives this tale of hush-hush conspiracies and anti-gravity technology a real air of credibility. Cook maintains that during the Second World War Nazi scientists made a breakthrough in counter-gravitational research that resulted in workable projects. He further maintains that research into anti-gravity has been ongoing in the United States for decades. But that information has been deliberately suppressed and misinformation spread so no one can confirm the existence of this highly classified technology. Cook started researching when he mysteriously came across an article from 1956 in which the US aerospace and defence industry seemed to declare that gravity-control was within reach. But then nothing, at least according to the official version. Now Cook's curiosity is roused and he sets off like a knight-errant in search of the 'Holy Grail' of aerospace propulsion technologies, as he puts it. To do this he must enter the strange world of Pentagon spooks. Cook may not prove anything but he makes outlandish fantasy seem plausible. It seems undeniable that attempts have been made to harness gravity in the last century. Who knows what the 21st century will bring? And whether you believe any of it or not, Cook's account is written in an engrossing and entertaining manner which makes the book hard to put down. (Kirkus UK)