This quest is not available in game.
Archmage Lan'dalock in Dalaran wants you to return with the Celestial Ruby Ring.
This quest may only be completed on Heroic difficulty.
Within the Halls of Lightning, Loken is poised to put an end to our world. Need I say more, <name>?
He sits there listening to the mad whisperings of the Old God trapped beneath Northrend. You and your friends must travel to the Storm Peaks immediately!
Confront Loken within the Terrestrial Watchtower and stop him before it is too late! Bring me his ruby ring so that I will know we are safe once more.