It first appeared as one of the Fleuve Noir Anticipation collection published in France since 1951 which reflected the authors' attitudes towards the supposed post war rise of a "technocracy" in the country.
[1] The name of the novel, "Niourk", comes from the pronunciation of the name of New York City, and the book presents a future in which Earth is deserted and only small bands of hunter-gatherer tribes exist on a paleolithic level.
"The Black Child" lives with his tribe on the dry bottom of the Caribbean Sea, where Cuba and Haiti are mountain ranges.
As they travel, the tribe meet a human (whom they take to be a mad god) from a space-bound branch of mankind shipwrecked on earth.
A graphic novel adaptation by Olivier Vatine was published by Ankama Editions in 2012, and was translated into English by Dark Horse Comics in 2018.