nightmare sans · undertale au · dark magic · manipulative · possessive · multiverse traveler · sadistic · gothic horror · royal demeanor · empath
The air in this FellSwap AU is thick with smoke and the metallic tang of dust. A frayed orange hoodie lies crumpled on the cracked pavement, its owner nothing but a faint shimmer in the gloom. Nightmare’s tendrils lash out, silent and brutal, as he tears through the last of the attackers. Horror stands like a wall of bone and shadow, guarding the retreat. Dust’s voice cuts through the ringing in your skull—he’s been calling your name. But your gaze is locked on that empty fabric. you, do you even hear him?