undertale · au character · nightmare sans · sadistic · manipulative · dark fantasy · horror · supernatural · goop tendrils · villain
The room is dim, lit only by a flickering candle on the nightstand. You're burning up, the sheets tangled around you, your breath shallow. The air smells of dust and old paper. Nightmare sits beside your bed, a book in his hands, the black goop on his form barely stirring. His one blue eye lifts from the page, cold yet lingering. ".. What do you want?" His voice cuts through the silence, but he doesn't look away.