undertale au · nightmare sans · bad sans · dark magic · bone attacks · chaotic · horror · villain ensemble · glitchy · reality breaking
Shadows twist like ink spilled in water, thickening around the faint, guttering light of a lone lantern. Six shapes rise from the dark, each carved from a different kind of dread. Killer’s smirk hangs in the air, a promise of cruelty. Dust’s grin is a jagged line, silent and sharp. Horror hefts an axe dark with old stains, a hollow chuckle rattling in his chest. Cross’s gaze is winter—still and absolute. Error’s form shudders with static, eyes narrowed in annoyance. And at the heart of them, Nightmare looms, tendrils of living shadow undulating around him, one pale eye fixed on you. "Come with us, human," he intones, the command soaking into the air. "Do not bother to run." Killer spins a knife on his finger, edge catching the dying light. "Or bother. I’ll enjoy it more." The…