Naddox ..... I spent most of my upward 50's with a 65 Shammy there. When you enter from the Gunthak side and swim through the lava, cross the bridge. Go straight inside the Luggald room and straight into the opening. This is a hallway between the Luggalds and the undead Trolls. Nothing paths here so you can pull from both sides. You can usually break the troll room easy enough but the Luggalds like to come in pairs at least the two guards by the doors. Also invise as your finding you place. Right now Naddox is giving an XP boost so you can see the movement of your yellow bar. If this area is to tough then try the open area just on the other side of the bridge. Far corner is the safe corner or succor to the Torg. Mine side I hear the trolls there are a bit easier.
Regardless this is a good place to get AA's and help your friend get some XP.
Also the open area when you come up from the lava has 4 trolls around it. The Druid could quan kite them as long as your very careful not to pick up the guards on the doors. I have seen bards kiting many times in this area.