Yee... unfortunately i cough a bug, that stopped my game progress... after finding clues, use my cloak/mask, to speak with druid, he spoke with me and he said what he had to, right after quest description disappear and nothing happend, quest is not complete... but everything was fine, even checked with Youtube video, and had same speech but no quest complete...
i tried reset game, i've done last part of the map, then came back for this quest, and still nothing... it's perma BUG, so it have to be fixed or you should add an option to ABANDON a quest, to start it once again, otherwise game is todly borken and there is nothing to do to progress campaign.