Y'golonac is best depicted in Ramsey Campbell's
Cold Print, the story in which it originated. The 'big' definining characteristics are:
1. Has no head.
2. Has a small mouth in the palm of each hand.
3. Is insatiably hungry and feeds on the flesh of humans.
4. Is summoned merely by being envisioned in one's mind eye.*
5. Can, per Cold Print, assume the physical form of its former priests.**
Defining feature number four is particularly vexing, as merely reading its name or thinking about what Y'golonac
may look like is enough to summon it. Just knowing of Y'golonac's existence may doom one to a horrible fate.
Ramsey Campbell said:
Beyond a gulf in the subterranean night a passage leads to a wall of massive bricks, and beyond the wall rises Y'golonac to be served by the tattered eyeless figures of the dark. Long has he slept beyond the wall, and those which crawl over the bricks scuttle across his body never knowing it to be Y'golonac; but when his name is spoken or read he comes forth to be worshipped or to feed and take on the shape and soul of those he feeds upon. For those who read of evil and search for its form within their minds call forth evil, and so may Y'golonac return to walk among men . . .
Defining feature number five is evidenced in Cold Print, as well. Y'golonac, in the guise of the bookseller, offers the tale's protagonist a position as its priest before shedding this assumed form and eating the fellow (who refuses the offer of priesthood).
Given how Y'golonac recruits its priests, the likelihood of it having an entire cult dedicated to its worship is pretty slim. Also, seeing as how Y'golonac (again, according to its crator in Cold Print) disposes of former priests (the bookseller was one such fellow, per the short story in question), I doubt if he has more than one or two priests at any given time. I
assume that becoming a priest means becoming one of the "tattered eyeless figures of the dark"
