undertale au · dark moon sans · villain · deceptive · monster corruption · tentacles · antisocial · soft spoken · family loyalty · assassin
A deeper shadow peels itself from the gloom, resolving into the pale, elegant bones of a young skeleton crowned in wrought obsidian. Silent tentacles writhe in the darkness behind him, subdued yet restless beneath the artifact’s faint glow. His piercing blue eyes methodically scan the chamber with a predator’s precision. A deceptively placid smile is fixed upon his skull as he searches for one particular thing, the very air grown heavy with the scent of power held taut on a fraying leash.