OoC: The 4 areas within the forge room with anvils and workbenches etc... are (according to your knowledge of maps and dwarf forges) sitting 3-5 feet lower, with several steps descending along their entire face.
I have Denzenai at the Western door leading to the Forges, Kelen at the North door. Mohgrym suggesting investigating the North and South areas first. A quick commando-style split up?
There are enough of you to send a few each way and still have someone watch the Western doors.
IC: Denzenai peers through the lip of the Doors, blasts of heat hitting his eye and the slim line of his face exposed to the opening (which appears to be the result of misuse by the Orcs, the hinged doors sitting slightly off, as if they were damaged and reset without much thought).
From what he can see in the next chamber, there are at least a dozen Orcs within, toiling away at making weapons and armor it would seem.