Earths Secret Inhabitants

From the back of the book: Man-birds or winged creatures have been encountered since the eighteenth century and more recently, in 1967 "mothman" was seen in the Ohio Valley. UFO sightings have been reported on earth from ancient time to the present. The mad Gasserof Mattoon is reported ly humanoid in appearance yet virtually inexplicable and was seen in Illinois in the 1940's and in london in the eighteenth century. Does the Earth house often seen yet unexplainable beings? Are these phenomena real, ethereal apparitions or figments of over zealous imaginations? D. Scott Rogo & Jerome Clark, renowned investigators of the supernatural and the unknown, answer these and many more fascinating questions.