(No POV)
The entire dungeon space started to tremble and the mountain that it was embedded in started to rumble.
The adventurers that were outside the mountain and in the mining tunnels themselves panicked and scrambled to run away. The vendors were the same, packing their stuff as best they could before running away.
As for the guards, they were currently trying to calm everyone down, but when they saw more adventurers running out from the mining tunnel they gave up on their task and prioritised the protection of the people, helping out in packing the stuff of the vendors and helping people who had fallen down up.
The rumbling lasted for a couple more minutes before it stopped. Thankfully no one had been hurt aside from a few bruises and scratches here and there.