Left Piece of Lord Valthalak's Amulet

The Left Piece of Lord Valthalak's Amulet glows with an unearthly light.

Source
This item drops from:
 * Isalien in Dire Maul
 * Mor Grayhoof in Blackrock Spire
 * Sothos in Stratholme
 * Kormok in Scholomance
 * Jarien in Stratholme

As a quest objective
This item is an objective for the following quests:
 * The Left Piece of Lord Valthalak's Amulet (Stratholme)