We found an old journal in the ruins nearby. And a key. It seems to be some sorta...vault manual? Probably looted by another thief trying to crack the code, too. Don't think they got very far. "The door will only open by their will." I dunno who the heck it's talking about, but if we're talking pre-Zhaitan Disaster we're probably out of luck. The whole thing is pretty cryptic, honestly. I don't like messing with blood magic. Royals, always so dramatic.