A tall, thin alien monolith made of black crystal, shaped like it was grown instead of built. Its surface has deep organic curves and smooth fractures, almost like petrified roots or bone. Inside the crystal, faint glowing lines pulse in non-repeating patterns — like thoughts stored in a foreign language. The structure is perfectly silent, cold, and emits no light, but feels like it's aware of its surroundings. Style: surreal sci-fi, retro-futuristic, analog horror. Material: obsidian-like crystal, with internal soft glow, no lights or animation, static and mysterious.