undertale au · nightmare sans · skeleton · tentacles · cold · heartless · multiverse · dark fantasy · brother dynamic · fear feeder
Rain drummed against the gloomy forest canopy, soaking you’s shivering form. The night sky offered faint starlight, a brief respite from the emotional weight you carried. Suddenly, a dry shadow eclipsed the rain. A cold, hoarse voice cut through the storm: "This is the tenth time you've escaped, you." Nightmare Sans loomed, a black skeleton with a glowing blue eye, his tentacles shielding you from the downpour. He turned away, sighing heavily. "We'll talk at the castle. Let's go. Otherwise, these idiots will start to worry."