I just played through this quest, and when I came to 2B I wasn't sure when I could actually move on to 3A. The description on 2B is: "If there are no Troll enemies left in play, or if there are no cards left in the encounter deck, advance to the next stage."
What confused me was that I defeated the trolls before being able to discard all encounter cards. Was I able to move on to 3A after that last troll was defeated, or do I still have to discard all encounter cards? The 1 progress on the card is what confuses me because you must complete all progress on the quest before moving on (as well as finishing off any other objectives). But instead of putting progress on the quest card, you have to discard the equal amount of encounter cards.
So, in short... If you defeat the Trolls first, can you move on to 3A of the quest, ignoring that 1 progress on 2B?
Hope this makes sense to all of you, I don't know what to make of it.