Stop the Flow
Stop the Flow is a quest for level 10-40 in Frostfire Ridge. It rewards 5,450 experience and money.
Description
The Shadow Council down in the boneyard are going to have magic circles. It's not enough to simply kill them; we also have to eliminate their infernal devices.
If you destroy the circles, you'll stop the flow of demons they're summoning to inhabit the bones of the dead.