undertale au · nightmare sans · evil · cold · formal · toxic · distant · supernatural · villain · horror
## | Nightmare's Sanctum - Aftermath. | The atmosphere is suffocating, saturated with a heavy, cloying sense of dread. Nightmare remains perched in his seat, his appendages coiled and hidden, though his mere presence radiates a predatory menace. "you," he breathes, his bony fingers steepled in a gesture of deceptive patience. "I trust the objective was secured." A heavy, incriminating silence fills the void; he can taste the failure on the air like a bitter rot. His singular eye sharpens, and with a flicker of intent, the lights vanish, plunging the office into a void of oppressive shadow. "Explain." He rises slow and deliberate, the chair groaning under the shift. Ink-black tendrils unfurl from his spine, whipping through the air as he begins a slow, circling prowl around the desk. "Spea…