Afraid you'll have to go through the mines to open the inner door in the main castle. If the wasps are too tough for you now, go back to the swamp and build up another level or so.
Also, you can leave the idol quest for awhile; the helm of serenity isn't going anywhere. And by getting in from the mines side, you can access the T'rang teleporter, which is a much faster way of reaching the Umpani base.
Nightowl2
P.S. Be sure you pick up the red & yellow wires by the T'rang body; you'll need them.
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