You creep up behind the fighting Hobgoblins and, leaping out of the shadows, push them into the wall as you run by.  You look back to see them sprawled on the floor and chuckle to yourself as you hurry on north.<br/><br/>The tunnel soon takes another sharp right turn.  Following it east, you arrive at a strange obstruction: a line of twelve wooden poles across the tunnel.  They are fixed to the walls about half a meter off the floor and spaced a meter apart.<br/><br/><em>Your choices are to step between the poles, or to walk across the top of the poles.</em>