I was just fooling around with my Hunter when I was able to use my pet and get inside one of the walls surrounding wildhammer stronghold. A little guide is included.
First Go to the left of the Inn and get on to the ledge. This is very simple.
Once up there, walk around the area, jump and such. You pet should fall into the area. This may take some time. Once that is done. Simply cast Eyes of the beast. It may say you targets not it sight so you have to just adjust.
There you go. You are inside the wall. Walk around and explore.
To get out simply walk out. In my case, I went out the other side.
Remember... Happy hunting :wave::wave: