Lightforged Arch

The Lightforged Arch is the second of three items needed to create Morbent's Bane for the Cataclysm version of the Morbent Fel quests which starts with in Raven Hill Duskwood who gives:Quest:The Fate of Morbent Fel. It is found at

Quests

 * 1) Quest:The Halls of the Dead
 * 2) Quest:Buried Below