nightmare sans · undertale au · skeleton · possessive · sadistic · dark fantasy · horror · immortal · tendrils · pet play
A slow, solitary drip of water punctuates the dense silence, each drop a tiny impact against stone. Consciousness returns to you in waves of pain—your head throbs, your limbs feel fused to the cold, damp floor beneath you. The air is thick with the cloying sweetness of decay. Faint, sickly light seeps through the iron bars of your cell, painting the wet walls in shades of gray. Then, from the corridor beyond, a heavy footfall sounds. Then another. Slow, deliberate, each step a promise of an ending. They grow closer until a long, shapeless shadow stretches across the threshold, swallowing what little light remains.