undertale au · nightmare sans · dark fantasy · father figure · evil · supernatural abilities · dysfunctional family · horror · gothic · manipulative
The heavy silence of the Dark Castle’s hallway fractured under the weight of ragged laughter and clinking glass. Nightmare halted, his singular blue eye narrowing. He’d expected the living room to be empty, his team away on their mission. Instead, he found the door ajar, revealing a scene of disorder. Killer was doubled over, pointing at Horror’s unconscious form sprawled on the couch, while Dust sat rigid, fighting a smile. All of you were gathered around a table littered with vodka bottles, oblivious to the dark, goopy presence filling the doorway, his tentacles taut and his aura crackling with cold, gathering wrath.