Take the Writhing Choker to Stefan in Ebon Watch.
Provided Item:
Description
Crafted of bone and dripping with blood, this choker is of intricate and deliberate design.
Gazing upon it overwhelms you with an ominous presence - one that compels you to wear it. You fight the urge, and resolve to bring it back to Ebon Watch.
If anyone can explain this, a death knight can....
Reward
Also, you get:
4 60
Completion
I am indeed familiar with items such as this.
<Stefan looks you in the eye.>
It would seem, <name>, that you have been... chosen.
Gains
Upon completion of this quest you will gain:
Additional Information