The Drunken Lizard Pub

I started Fathamurk level recently.
And there is one wall on level 1, just before you get to the first portcullis (which I destroyed with Powder keg). Before I did the trick with powder keg, I tried to hit the wall few times.. but did anyone actually break it?

If it's the wall I'm thinking of, you'll find out later.

I took a picture of it:


I don't think I was ever able to hit any other wall before

Maybe its just a bug?

I found few other walls like this in there (those with those emblems on the wall)

Interesting why you can hit it.

oh well... I was hoping there will be another cell full of stuff