ma’habocath has told this tale in one form or another on other sites over the years, but this one can’t find it again so ma’hab retypes it anew:
Many years ago in late-teens or early-tweens, ma’habocath was trying to sleep upstairs, the windows behind his head, the stairwell and doorway are to his left across the room. This old home was a few blocks from a prison so plenty of light coming through the windows in the dead of night, casting many long shadows. ma’hab’s glasses were on the nightstand so everything was cast a dull monochrome.
ma’habocath saw a large, dark figure walking up the stairwell. Assumed it was this one’s elder brother, but those stairs creaked terribly and he’s a big dude. ma’hab stared in bewilderment at seeing but not hearing the ascending figure. When it got to the top of the stairs ma’hab saw it more clearly, or at least as clear as this one’s impaired vision would allow.
It wasn’t translucent or shadowy, but solid. Like a tall and large figure wrapped completely in oil-soaked rags, mostly piled atop the shoulders which mostly obscured its head except its featureless face barely poking out but still under rags.
After a moment it whipped around at ma’habocath and bellowed an extremely deep growl that to this day is unlike any other sound. This one was beyond terrified. After it stopped, it slowly turned away and walked through the doorway into the other room. When ma’hab had unfrozen and went in there, the room was empty.
Behold this one’s terrible MS Paint skillz, a weak attempt at showing the… thing encountered late at night so long ago. It is called the oilrag banshee because the first forum this one shared this story said it sounded like a banshee.