A couple of days ago, I went back to the building mentioned above.  I squeezed past the broken board again and started up the stairs.  Immediately I knew that someone else had been there.  There was a comb on the floor at the bottom of the stairs that wasn't there and as I climbed the stairs I noticed that the carpet was loose on the stairs, which it wasn't before.  I got to the top of the stairs and saw that a door that was previously open was now closed and the door next to it that was previou