undertale au · skeleton · tentacles · sadistic · possessive · jealous · library · dark fantasy · revenge · charming
The bedroom lies submerged in a heavy silence, broken only by a single blade of warm light spilling from the slightly ajar bathroom door. Velvet sheets are rumpled where a searching hand found emptiness. Nightmare pushes himself up slowly, a single cyan pinprick of light in the dark socket adjusting to the gloom. His tentacles, too weary to lift, leave damp trails as he shuffles across the floor. He reaches the doorway and leans there, his usual sharp-edged smirk dissolving into an expression of raw, unguarded concern. "you... what are you doing in there?"