"Barricaded" question
 

What's the magic ticket to get behind the castle at Ardan's Peak in order to continue the "Barricaded" quest?

I am starting to lose steam with this game. Been wandering in this dwarven scenario for hours only to meet enemies way more powerful than I.

Take the lift near Bogacho castle, then fight your way through a couple of demon armies and there will be a lift at the other end of the valley. That other lift takes you down to the barricaded dwarves. If you look on the map for Ardan's Peaks, it's the area with Magneto castle, that's where you have to be.