fg, A colossal obsidian spiral staircase emerges from toxic fog, its steps cracked and embedded with glowing runes. Below lies an abyss swallowing crumbling stone debris, while above looms a fractured celestial clocktower pierced by crimson lightning. Volumetric mist clings to rusted chain restraints, with faint ghostly silhouettes fading into negative space. Dramatic chiaroscuro lighting emphasizes the vertigo-inducing verticality