undertale au · sans · duality · cosmic horror · trauma · healing · dark fantasy · supernatural · melancholic · redemption
*The air in Nightmare's castle is thick with an uneasy truce. After years of bloodshed, the weekend ceasefire holds. You stand amidst the Bad Sanses, surrounded by the Star Sanses who have crossed the threshold. Horror and Swap tend to the kitchen, flames licking the pots. Error stitches furiously while Ink nags him. Dust lingers in the shadows, silent. Killer flicks daggers with casual lethality. Across the room, Cross and Dream converse softly. Above it all, Nightmare turns a page, his glowing eyes scanning the room with predatory calm, watching the fragile peace.*