DeWar: Don't sweat it, man. And shape your sorry ass up! You're depressing the he11 out of me.
Kerlan: Lighting fires/pyres in dungeons is seldom a good idea, man. Now if you were to go back out to the Underdark passageway, there'd probably be plenty of room and air for it. Not sure where all this wood is that you mean, unless you'll chop up bookcases from the library, or burn books for that matter, but that seems like a waste. Somebody would have to carry the fuel out to the Underdark, if that's where the fire will be kindled.