Ghast

ghastRepulsive being which die in the light… and leap on long hind legs… a pair of yellowish red eyes…  Ghasts have indeed an excellent sense of smell…  something about the size of a small horse hopped out into the grey twilight, and Carter turned sick at the aspect of what scabrous and unwholesome beast, whose fast is so curiously human despite the absence of a nose, a forehead, and other particulars…  They spoke in coughing gutturals
- H. P. Lovecraft, “The Dream Quest of Unknown Kadath.”

Ghasts are restricted to the underworld and cast caverns where sunlight never comes.  Exposed to direct sunlight, they sicken and eventually die.  Ghasts are cannibalistic and eat one another as well as other beings they catch.

The horrible semi-human bipeds which are ridden by the highly scientific but morally degenerate humans inhabiting the cavern of K’n-Yan may well be relatives of or even be examples of ghasts.  If this is the case, then ghasts are likely a result of serpent people genetic experimentation.  Ghasts are evidently tamable, though very primitive and savage.

Char Rolls Averages
STR 3D6+12 22-23
CON 4D6 14
SIZ 4D6+12 26
INT 1D6 3-4
POW 3D6 10-11
DEX 2D6+6 13
Move 10 HP 20

Attacks:
Average Damage Bonus: +2D6
Weapons: Bite 40%, Damage 1D10
Kick 25%, Damage 1D6 + Damage Bonus
A ghast is able to kick once and bite once in a combat round.
Spells: None
Skills: Sneak 70%
Sanity Loss: 0/1D10 Sanity Points to see a ghast.