Dämon

"The thing came abruptly and unannounced; a demon, ratlike scurrying from pits remote and unimaginable, a hellish panting and stifled grunting, and then from that opening beneath the chimney a burst of multitudinous and leprous life - a loathsome night-spawned flood of organic corruption more devastatingly hideous than the blackest conjurations of mortal madness and morbidity. Seething, stewing, surging, bubbling like serpents' slime it rolled up and out of that yawning hole, spreading like a septic contagion and streaming from the cellar at every point of egress - streaming out to scatter through the accursed midnight forests and strew fear, madness, and death."

The Lurking Fear, H.P.Lovecraft