The short story Free Jim's Mine first appeared in the 2014 anthology titled Long Hidden: Speculative Fiction from the Margins of History. It spans several genres including folklore, horror, and science fiction.
Set in the Antebellum South, a young couple on the run are forced to seek shelter in a flooded gold mine. What they encounter down in the mine is more than just bad luck.
Read more about the author here (link).
You can also listen to this short story read by LeVar Burton on his podcast LeVar Burton Reads