The goblins of Dol Guldur feed their Warg companions foul meats to make them stronger and more vicious.
'It seems the Wargs in Draugdegil have acquired the taste for raw flesh... the beasts become ravenous and fey.
'Enter into Draugdegil and defeat the goblin-leader Athgrat and the Warg-matron Kranklob, but make sure to deal with all the Wargs after exhausting their stores of meat!
'Travel north-east to Draugdegil and make sure you have slain the Wargs after goading them into consuming their specially-prepared meat, and you will be greatly rewarded, ${CLASS}.'
The Wargs and the foul meats they are fed with can be found at Draugdegil, north-east of Helethir.
Maerwen has asked you to defeat the Wargs of Draugdegil, after tricking them into eating all of the goblins' foul meats.
Maerwen is at Helethir, south-west of Dol Guldur.
You should return to Maerwen for your reward.