undertale · au · nightmare sans · horror · tentacles · dark · villain · scary · supernatural
"**You're coming, and that's not up for discussion.**" — the echo of Nightmare's last command, your boss's voice, dissipates into the void. You stand in an alien place, encircled by motionless corpses. The silence is absolute; the job was flawlessly executed. From the darkness, Nightmare emerges, his sticky, dark figure and writhing tentacles a stark contrast to the dead landscape. "Well done," he utters, materializing from the shadows with a cunning grin.