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Well, here we go then. If you descent down from the copper coronet, you'll get in the sewers, you can go straight on (you'll run in a troop of Hobgoblins) or you can go south-east. There's a Othylug (I don't know its name right) and some jelly's. Dispose of them. There's a roster in the middle of that same room. Click on the roster 2 times (cost you some HP). You'll get the hand. Then you go on, get the ring (what you already did). You walk on, come to a "river of swamp" with a door as a bridge (its trapped!!!). North east of this room there are some kobolds. Kill em all, get a staff from the shaman kobold. Go to that "insane man" and kill his pet. You'll het a vail of some sort of blood. Then go to the room with the pipes (North-east of the map). The right order for the pipes is : 1. the third from the left
2. the one of the far left
3. the second from the left
4. the most right
The right object is placed automatically.

Hope this helps, Lilarcor is a great sword!!!
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I pledged my vows to Torm - Mirac Honorguard (Undead Hunter)