A Foggy Corridor                                       -      -     NE 
(-------------------------------------------------)     - <---(M)---> -
                                                        -      S      -

A strong wind bowls over you nearly causing you to lose your footing. 
What you see in front of you looks like nothing more than a blank wall.  The
fog continues to creep ever so silently around you and up your waist now. 
It seems that you can either proceed towards the wall or turn back and high
tail it out of here.