The large room with all the furious and vehement blackhands, the one with the LT that spawns there frequently, well, theres hallways behind that room with about 5 or 6 roaming 'furious'. Kill the roaming "furious" and eventually veteran spawns. I did that with my bard for about 4 hours. Took mobs out to the bridge by lava river and kited them down.