内容简介：
Are we influenced by something or someone from the past unknown to us? Is there technology out there even older than the one from the extraterrestrials from 450,000 years ago? And is there technology, which Earthlings have not yet invented, in the 21st century? Ethos Returned deals with the idea that many scientific, mechanical and medical advancements on Earth, during the recent past, came from an alien source from the distant past. Descendants of Sumerians living below the Earthas surface struggled for 300,000 years to find a way to move to the surface of the Earth. When they finally moved up, they established Sumer City located in New Mexico, and they lived in peace amongst Earthlings. This is a fast-moving, adventure sci-fi novel that touches on technology, philosophy, heredity and sociology.