I did the Q myself... but I had to try a couple of times. First I had a lot of trouble finding him... them I sort of got killed a couple of times. At last I succeded... I spawned after dying, but they spawned just as quick. Then I hurried killing the kobolds ( they die very fast) and then I used a healing potion and killed Fozruk. After killing him...It´s very important to get away from there fast because they really spawn fast.
I was level 41 warrior when I did it!