Down a dark stone corridor, something long and segmented drags itself into the light — armored metal rings glowing molten from the inside, tendrils lashing the air, a bladed mouth leading a body that just keeps going and going. You can't tell where the machinery ends and the living thing begins, and that's the horror of it: someone built this, or it built itself, and now it's loose. Whatever's dripping beneath it isn't oil.