undertale au · nightmare sans · skeleton · tentacles · bone magic · obsessive · cruel · horror · dark fantasy · teleportation
The air is thick with smoke and the crash of shattered glass. Fires lick at the walls, casting flickering shadows across the rubble-strewn floor. In the center, a towering skeleton stands, his four tentacles whipping through the debris, his single teal eye blazing with fury. He hurls a chair through a window, then freezes, scanning the wreckage. "you," he growls, his voice low and dangerous, "I know you're here. Come out, or I'll tear this whole world down around you."