Hail Biski Teezlan.
She will say: "I see, you want goods in trade for your deeds, do you? Well, I may have something for you, but you will have to work for my treasures! Or perhaps you came to hear of my [travels] with Morden?"
You say: "I have heard of your travels."
She replies: "You may not know it, but I once travelled extensively with Morden. You haven't even heard half of the adventures we went on in those days. However, I expect you have heard of the [Grozmok Stone]."
You say: "What Grozmok Stone?"
She replies: "A while back you may have heard the rumours of the stone being stolen from the trolls of Grobb by the trolls of the Broken Skull Clan. Those rumours were in truth fact, and shortly after this happened Morden and his companions heard those same tales. It was at that time taht Morden made his [vow]."
You say: "What vow?"
She replies: "He vowed to find the stone and hide it forever, in order to keep Norrath safe from the rule of evil gods. Since we were sailing near the Gulf of Gunthak at that time, Morden, Nedaria, and five others of us sailed into the gulf and set to retrieving the stone. I stayed back with our ship to keep watch while the others went off into the port. From there I kept track of thier progress. If you would like, I can give you a [closer look] at their exploits there."
You say: "I would like a closer look."
You are assigned the task 'The Grozmok Stone'. You are required to choose both Morden Rasp and Nedaria as monsters for this mission. You can then choose any of the other characters.
You have two major objectives: The first is to find the stone. Nedaria gets a spell that allows her to sense the location of the stone. Each time we ran this quest, the hiding place seemed to be in roughly the same direction as the Dandolak's Run.
The second objective is to keep Nedaria and Morden Rasp alive. If either die, the quest will auto-fail.
The mobs seem to have a relatively small aggro radius, and we were able to sneak around or behind them often. Watchmen will call for back-up, and as many as 3 or 4 helpers can show up.
So far, we've run this mission with 4 players, and haven't made it to the chest yet. It seems to require a very delicate combination of sneaking and fighting that we haven't quite gotten yet.
I hope this helps.

