In my Rishi stronghold I recently have died by falling down the huge elevator (inside the mountain, between balcony and beach level)....

So I have thought it would be a good idea to block that fatal hole with an overlapping merchant's rug.

Well, this did not completely fit/work as expected, however during my way down the camera was partially outside the elevator walls - revealing stairs under one of the bedrooms?

I would post a screenshot, but unfortunately it was not possible so far to get the camera beyond the elevator walls again as before (...and honestly, I am a bit tired of falling and dying all over again, as dangerous this shaft is).

However thrse stairs must have been around/underneath the coordinates 160,140 (bedroom on coast/balcony side).

So is perhaps something known about that?

There are several good-to-know/secret things about the Rishi stronghold, but I could not find something about these stairs.