Prompt: a curious cat lurking around in the dark cave, long tunnel, nothing can be seen in the pitch darkness, until it reaches the end of the tunnel, there the cat found at the end of the tunnel standing an advanced robot ((30ft tall, 6 big legs, thick metal shield in matte black colors, totally stand still, some ashes, some fog, only shade of edges can be seen with a low dim light inside of the cocpit)), the floor cave is black sand, stalactites drying of old age, nothing but dust in the cave, very low light, dimly lit, defeaning silence, pitch black darkness, intricate detail, rock cave, masterpiece quality of octane render