It's... at the North? The door on top screen? Once you go through that there's another room with one more door and you've reached the North exit of the Munbury complex..
Hmm.. ok yeah that's strange indeed.. Maybe it will cross by doing the next step, 'Search the Wasteland for clues about the Iron Blood Tribe.' (tip, be well rested and not tired)
That might do it yes, Nameless must be done anyway to continue Orc's War, but in order to unlock that one you must finish Bareshade Expansion, Country Road and the stories related to the Lizardmen.
