After the invention of a rejuvenation pill, space and resources threaten to become scarce on planet Kadohan. The only way out is the search for a re¬placement planet. The choice is made for the planet "Earth". The landing pillars needed for the invasion are disguised to the "Earthlings" as installations for generating wind power. Thus, the novel captures the feeling of alienation from nature resulting from the progressive disap¬pearance of landscape behind wind turbines in the image of mankind being overwhelmed by extraterrestrials