"Spectres in the Dark"
by Robert E. Howard unfinished story (published posthumously Spring 1985) (from Tales of Weird Menace)
A city is under siege from spectres that are haunting people and appear to be capable of possessing them, driving them into murderous rampages. This story doesn't go so far as to reveal what the cause of the epidemic is, but if the weird aside between the narrator and his brother in law is any indication, then it's some sort of Oriental hypnotism/mesmerism at play.
To be claer, this is an unfinished draft. It's not that the story is purposefully vague; it just peters out before it can get to the plot twist.
If we want to compare weird story beats here with other Howard works, compare the relationship between the MC and his sister to the one between the cowboy Steve Allison and Mildred.









