Linro Hidden Mysteries Collection: Signs of Unknown Origin (Hobby & Work)

New Sealed with some scratches on the cover

Events and signs of all kinds seem to suggest that the Earth, since ancient times, has been the object of continuous alien visits.
This is suggested by the news reports of pulsating lights appearing without any rational explanation, the gigantic circular designs traced in a single night in the countryside and cultivated fields, the incredible geoglyphs of the Nazca desert in Peru, some of which look like landing pads for spaceships.