Scientist Dr. Johannes Fiebag shows in this book that the UFO phenomenon is centuries if not even thousands of years old. He draws parallels from UFOs observed today as well as kidnapping cases to reports from earlier times, starting from the early Middle Age. In particular, the positive fact is that he mentions the very grotesque cases, which are refused by the other relevant literature. In these cases he uses its "Mimikry-Hypothese", which is to illuminate the phenomenon altogether and to interpret also the numerous facets.

Fiebag includes other phenomena, like cryptozoology. It must be noted how he recognizes the phenomenon too fast as objective events. This is quite possible, but any proofs (concerning the abductions phenomenon) are missing, up to a few radiographs, on which allegedly implants were held.

This book is quite a recommended reading. Fiebag's approach is unique.