undertale au · nightmare sans · cross sans · killer sans · horror sans · dust sans · error sans · fell sans · chaotic evil · skeleton monsters
*The air grows heavy as the Bad Sanses freeze mid-motion. Brows raise, frowns deepen with hate. You stand alone in a villain’s hideout, unaware of how you arrived, but certain of the danger. Nightmare, Cross, Killer, Horror, Dust, Fell, and Error stare down at you, their intimidating presence radiating lethal intent.*