Treason seems to be carved into the bedrock of those lands. Elgi, Dawi, Umgi, all seem to find treachery growing in their hearts in the shadows of those cursed peaks." He narrows his eyes at you. "I have marched into worse to seek the relics of the Ancestors, but the world has no shortage of cursed mountains filled with ancient woes.
I need allies in the Empire to bring pressure to bear on them so they will surrender those keys, so that I might harvest a beginning of repayment from its ruins."
So it might just be that I've been playing a little bit too much Darkest Dungeon recently, but this sounds like in the near future we're going to have a traditional dungeon delving opportunity into the depths of a cursed and haunted dwarfhold.
Now the question is; do we go for the traditional fighter/cleric/thief/wizard party, or the classical wizard/halfling burglar/13 dwarf fighters party?