I sctually disagree that the forge is no longer an option. if we don't go to the Forge it means we go to . . . Cirus Ungol. One does not simply walk into Cirus Ungol. Do you really think that will be easier than 3 mind flayers, 4 ogres and a few Derro? I don't. Lothor doesn't consider himself the brains of the operation so he will follow the adivce of others in most things, but tactically this seems odd to him.
I also want to reread the stuff on the forge - do we really need the dwarven mages for this?
But it seems we retreat - I'll post for Lothor in a minute with info about shooting at the flayers. I'll probably try to hit two of them - maybe the injuries, assuming success, will disrupt whatever they are doing. Aim at the biggie? Maybe.
I do think we still need to figure out where we want to flee to. What sort of space? Or now, I guess, it is just out of the entire place. If Lothor is shooting, someone else will need to grab Sirene. I would suggest it NOT be Ulthok. We need him able to cast spells.