Four down it is then- let me know whose is being used.
You are on this dashing run onwards, and the Observation rolls combined with the maps you got have kept you on course. Now you have emerged into another large chamber. This time, the ceiling is very much in sight, so no random attackers dropping from above. It is also much wider, so you can move across in two large rows.
The problem is this- there is a sodding great chasm in the middle of it.