Gather up Stonebloom, Bitterblossom, and a Darkflame Ember.
I know of a draught that should jolt these gibbering former slaves back to reality. Gather some stonebloom from the rocks around Gar'gol's hovel, some bitterblossom from the shores of the nearby lake, and a darkflame ember from one of the braziers at the hovel entrance. The draught won't last long, so combine the ingredients at a twilight cauldron by the entrance to the hovel.
One sip of that draught should knock some sense into the brainwashed slaves!
You will also receive:
- 20,800 experience
- 35 (if completed at level 90)
- 250 reputation with Guardians of Hyjal