The French author Robert Charroux (1909–1978) contributed to the popular discourse about alien visits to earth in the remote past, that he advanced in voluminous books replete with narratives of anomalous “facts.” According to Charroux, humanity is divided in “races” whose existence is explained in reference to greater or lesser “genetic” similarity to the “ancient aliens,” as well as to radiation that genetically modified humans on the occasions of major catastrophes (natural as well as human-induced). Additionally, he was convinced that a factor in humanity’s decadence was its attachment to technology, that he regarded as detrimental in various ways; science, in his opinion, was overrated, a case in point being the theory of evolution. Extending the analysis of Charroux’s work offered by scholars like Wiktor Stoczkowski and Damien Karbovnik, I scrutinize Charroux’s books, reconstructing his ambiguous attitude towards science, his criticism of evolution, his racist theories, and his xenophobic worldview.