This quest is not available in game.
Speak to Jordan Stilwell in Ironforge
Actually, I have no doubt that Jordan himself would like to thank you, and seeing as I need a messenger to send word that his wife is safe, I think you'd be a perfect choice.
Jordan was to be a paladin of the Light before his dedication to his father's craft took him on another path--he's intimately familiar with our way of life and is considered among our most faithful.
He should still be in Ironforge--he likes to work outside the gates during the day, something about the cool mountain air.