The panel over there looked like all the others but when I pried at the bottom with my fingers it moved. Nothing was holding it down except its own weight and I managed to shove it up enough to see a dark stone-walled foyer. It was real stone this time, not manufactured. It was lit by more wan safety lights strung along the ceiling, all singing "caution" in chorus, and there was an open doorway in the far wall. From the airflow and higher level of atmosphere, there was a good chance this area connected to a much larger space. I scrambled under the hatch and let it down slowly behind me.