Seek the Saboteurs
Find Coren Direbrew in the Grim Guzzler within Blackrock Depths.
This scrap of paper seems to have been left behind accidentally by the Dark Iron invaders. While the plans are complicated and written in some form of coded Dwarvish, the signature at the end - "Coren Direbrew" - is clear enough, as is mention of the Grim Guzzler deep within Blackrock Depths. You should seek out the instigator and put an end to these raids.
Required Level
48
Recommended Level
52
Difficulty
49
56
59
End
Type
Holiday - Brewfest
Side
Both
Locations
Completion
It's a damn shame, it is, you lot cavorting up there without drinking the finest of the fine brews - ours! Did we get an invite to the competition? Of course not. Ya fight in some war and suddenly yer beer's not good enough! So aye, we smashed up yer kegs a bit, and rightly so!
Er... seeing as you've smashed through our defenses and all, though, maybe ya can do something fer me...
Rewards
You will also get these rewards:
You will also receive: 60 
60
Gains
Upon completion of this quest you will gain:
- 25 reputation with Thorium Brotherhood