Hi,
I've encountered what I think is a common problem: I cannot open the door in the 13th level of the Od Nua dungeon.
After poking online, I've discovered that I needed to ask Icantha to teach me a certain language.
Apparently, this needed to be done after completing the Heritage Hills Act 2 main quest (I completed that main quest).
However, I didn't make it to the 13th level after starting Act 3). I re-gained access to Defiance Bay, travelled to Heritage Hill... only Icantha is not present in her house. Am I screwed?