The third volume of the works of the prominent American science fiction writer includes new, hitherto unpublished novels. The novel "Between the World" is a captivating story about an incredible world placed between heaven and earth - in the heart of a green forest covering an unknown planet, onto which civilization seeks to penetrate in search of the elixir of immortality. The novel "Inside Yourself" opens up to us a number of complex internal problems facing tomorrow's humanity. A giant supercomputer, wisely and unobtrusively planning the life of mankind, suddenly discovers that it faces an unknown danger. And not only to him, but to the entire earthly civilization... An off-cycle novel and an independent novel from the “Chelanxian Federation” series. The entire cycle was not published in the series.