 Following up the previous year was virtually an impossible task, yet this album while not superior was a worthy follow-up and continuing on the folklore-meets-electric guitar themes.But it also was tending more to a "sophisti"rock style, which would be blown wide open in Arco Iris's 1974 "Agitor Lucens V", where Santaolalla and the rest of the band accurately predicted the symphonic and progressive direction Argentine rock would take.If the album title sounds alien, it should be no surprise then that the theme of this extraordinary work 'orbits' around an alleged pre-Columbian contacts between the civilizations of the Americas and visitors from outer space.