[Quiet Man Cometh]

It's acupuncture. The people that built this ruin originally had very thick skin and needed good velocity to penetrate. Also what do you mean poison? It's a relaxant because they are hard muscled. The would get so stiff they needed to step on the pressure plate because it was otherwise hard to move.

I guess chemical compounds change over time...


Why is there an illusionary floor covering a sheer walled pit?