Also known as the Dwarf King Quest.
Level Required: 40
Bring a team of at least 2 players if you are level 40ish.
Easily solo'd by 60+.
You will encounter several Dragons, Giant Spiders, Wyrms, Hellspawns, a room full of Demon Skeletons and the Dwarf King himself.
There is an exit portal right before the Dwarf Tower.
Continue heading down the floors, once you get beyond the Tower it's pretty much a 1 way path to the King.
Rewards:
Rare Blue Legs
1 Gem Box
15,000 Experience