Generate a small, ancient stone rui...

Generate a small, ancient stone ruin. It is not a full building, but only the scattered, crumbled remnants of a forgotten stone foundation. The atmosphere is extremely dark, desolate, and ash-covered. Key features: 1. Only broken pillars, shattered low stone walls (1-3 blocks high), and scattered rubble remain. 2. In the center of the rubble, place a solitary, glowing campfire on a patch of coarse dirt and ash (basalt). Place a single wooden log or broken stone block next to the fire for someone to sit on. 3. Somewhere among the debris, include a small, dark hole or trapdoor leading into the ground (a hidden cellar entrance). 4. Use a block palette of cracked stone bricks, deepslate, tuff, and cobblestone. 5. Size: Compact, around 10x10 to 15x15 blocks. It must look completely devastated