Was the Balrog drawn by the ring?

[Kuruharan]

Originally Posted by Leaf

Maybe the Balrog wanted to be left alone. But I find this situation to be confusing anyway. IIRC the Book of Marzabul explicitly tells us that the Dwarves of Balins colony found mithril. Since the easy to reach mithril oreveins were exhausted for thousands of years they probably used the newest and deepest abandoned mine shafts. Exactly those mine shafts which were the reason the Balrog attacked Khazad Dum in the first place. This surely was (from the Balrogs point of view) an absurd, presumptuous affront.

My explanation is that the Balrog was dormant in some other part of the mines.

Or perhaps the Balrog was the Watcher in the Water?