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I've cleared through the entire northern section of the cave and cannot pass the locked gate kept by the GateKeeper with his pack of druids.

Has anyone passed this point? I've literally tried everything - attacking them witrh Thoric, with both me and Thoric, assaulting them with Lleldorin with us and without us, I've tried dropping the bloodstone next to them and the gate....this is really frustrating.
you have to be a high enough level to kill them. I almost view it as a gateway to see if you have the level you need to face the final area.

Ill haven't played the game in years though so I could be wrong.