Silent Invasion: The Pennsylvania UFO-Bigfoot Casebook

Stan Gordon began his journey in field investigations of UFOs and other Paranormal encounters in Pennsylvania in 1965. During 1973 UFOs began to make widespread appearances in the sky across the Keystone State. It was during the summer of that year however when a mysterious wave of events began to unfold. Alarmed citizens over a widespread area reported close encounters with huge hairy Bigfoot-like creatures. Frightened residents called local authorities and media outlets reporting enormous...