Many people in the last century, and even today, have argued about the possibility of aliens coming to Earth with science and technology more advanced than our own. Usually, they base their proof on things like unusual phenomena and strange archaeological findings. However, in this book, Dr Perry argues that the proof of aliens is actually hidden in world mythology. He believes that certain clues about the super modern world are hidden in myths and we have to decode them. For example, he takes the myths of Prometheus, Iris, Sisyphus, Apollo and others and interprets them as machines, devices and different kinds of weapons. The purpose of this book is to decipher these clues and thus prove that intelligent extra-terrestrial beings visited the Earth thousands of years ago. The additional purpose of publishing this book is to cause individuals, more intelligent and professional, to join this field of deciphering mythology. If these experts decode new information of which we are not yet aware, it will be a decisive proof of alien existence in our distant past.