In a remote part of the Mexican desert, just south of the US border, top scientists have been secretly studying reports of extraordinary occurrences that have terrified the locals and baffled the experts. Cattle herders, who know nothing of UFOs, speak in hushed tones of strange round flying machines that hover overhead, then suddenly shoot straight for the heavens; bizarre animals and foot-long insects roam among wildly coloured plant life; unexplained earthen platforms stretch over six miles across the desert; pilots flying over the area report navigational equipment gone haywire; an Air Force rocket bound for New Mexico with a radioactive payload suddenly veered off course and headed straight for this mysterious area. The investigation has been kept top secret - until the publication of this book in 1986. Contains black and white photographs.