Mike Belov’s space journey for a trip into lunar orbit through a time portal unexpectedly carries him from the twentieth century one hundred and fifty years into the future. When he returns to Earth, he becomes an outsider in the new society. The outwardly friendly and benevolent world gradually reveals its veil to Mike, and by looking beyond it, Belov makes the only right decision. Broadly speaking, the story "The Devil’s Last Refuge" is a philosophical warning to humanity, which has gotten lost in the thickets of sophisticated humanism, destructive morality, and logic turned inside out.