Grays - Tom Norton - Bog

Within the last eighty years a phenomenon known as UFOs has been with us. These UFOs and their occupants have been witnessed by thousands and UFO research indicates that they have been visiting Earth for centuries. Artifacts from the Incas and the Egyptians represent what is being observed today. The UFOs and their obvious alien occupants have had no detrimental or beneficial effect on Earthlings, so the question is; why are they here?THERE IS AN EXPLANATION THAT ANSWERS THIS QUESTION.