>>175550
"Well, first time we came through here to try to clear undead, we brought entire group. There were mostly ponies with us, but there was also one kirin. Kirin nun, to be exact. Me and one other pony went down to this exit to try to seal it with dynamite we found on body of unfortunate quarry worker who had decided to explore this ruin while it was still occupied. We figured we did not need any other unfortunate souls to try to explore from this direction, and we did not want any undead wandering outside into city. While we did that, rest of group came upon library, and when kirin saw books she immediately thought 'evil books' and went full nirik. By time fuse had been lit and we had returned to group, most of library was up in flames and it was too late to try to stop fuse on dynamite, so we ran back way we came as fast as we could. When dynamite went off, it sealed catacombs and that fire immediately ate most of oxygen inside. We barely made it out.
"I suppose benefit of that is that fire was snuffed out before it could claim everything. It ate through all of oxygen too fast. As for this exit...well, our original plan did us no good. When it was just me I had idea to lure undead out here to kill them with unexploded bomb, and ended up having to reclear all of debris our dynamite made."