If I remember correctly, you dont actually need to go into mines or what. If you capable of reaching the blind man, then press M to open up to check on your current location. The alot areas like the blind man location where you can access around the mountain side, which similar as you see on the map. Change to dragon and look around and you eventually find a teleporting device, where you can teleport to the small camp with lady keara and lord john. Take them down and you find few lever up there where you can deactivate the red anti dragon force field which block your way
