Recover 8 Spirit Bottles from Shan'ze Spiritclaws in the Terrace of Ten Thunders.
The Spiritclaws are a sect of mogu assassin-priests who, at the height of the mogu empire, were the most elite and most feared of the emperor's troops.
All have mastered a deathblow which ensnares the spirit of the enemy, trapping it in a jade bottle for delivery to a Spiritbinder.
If you encounter any Spiritclaws further ahead in the ruins, take note: their belts hang with a cursed weight.
Relieve them of their burden and bring the bottles back to me.