Proceed through the tunnel

As you open your eyes, the world comes into focus. You are in a dark, brick tunnel. It is the air is cool but stale. You are lying on the ground in a heap. As you try to stand, you feel as if every muscle in your body is sore. You think for a moment about how you got here. The last thing you can remember is trying to relocate to an associate, but something went terribly wrong! Now you must try to get out of here. You look around for your spellbook, but it was lost in the accident. Your only option left is to walk out of the tunnel.

If you've seen this already, you may skip introduction.
Disclaimer: The material shown in the introduction is designed to be humorous. If you are easily offended, skip it.