Talk to Arbiter Daos
We have work to do. Ghost Widow's organization has been developing new soul trap technology, and I'm afraid they're well past the due date. The technology should be ready, but for some reason Ghost Widow is unwilling to give it up. I'd like you to go and take it, but we'll have to go through channels first: Arbiter Daos. If he gives you permission, you may do whatever is necessary to secure the new soul traps.
The soul trap technology should be all I need to undertake a certain plan of mine. Get it, and I will have more work for you.
Arbiter Daos: Zuhkara wants to send you after Ghost Widow's soul traps? Very well. You may do as she asks. But be wary: I can grant you permission, but I cannot forestall Ghost Widow's wrath.
Permission or no, Ghost Widow won't be pleased to see you've violated her base.
Objective: You have the soul trap!
You managed to steal this new soul trap from Ghost Widow's organisation. Zuhkara has plans for it.
Mission Complete: You have stolen the soul trap from Ghost Widow.
Excellent. The soul trap. You have done fine work, Dread Tomax. The next step will be to test it out.
Investigate the lab
I've got bad news for you, Dread Tomax. This soul trap you found me? Doesn't work. Not at all. Now, it could be that Ghost Widow managed to slip us a false prototype, or it could be that there's something deeper afoot. Regardless, I want you to go to the lab where the soul trap technology was first developed. You may be able to find out something there.
I want the real designs, Dread Tomax. I won't let this one go.
You detect a whiff of sage and ambergris on the air. The Circle? Here?
Objective: You have the real soul trap!
You recovered this soul trap from the Circle of Thorns, who had taken over the lab where the designs were finalized.
Mission Complete: You have defeated the Circle, and taken the real soul trap from them.
Excellent. This explains why Ghost Widow was unwilling to share her soul trap with the rest of us; the Circle had taken over her lab and taken possession of the working prototype. She must have feared that word of her failure would spread.
Now, leave me alone with this soul trap, Dread Tomax. I have work to do.
Test the soul trap
I have done some tinkering with the soul trap, and I believe it is now ideally suited to my purposes. It will now enable you to track down and destroy Circle of Thorns mages. It seems the Circle was right to fear it.
The only task that remains is to test my weapon against the Circle. Take the soul trap to Primeva, Dread Tomax, and lay waste to the ruins of Oranbega.
The Circle mages will writhe in your grasp. I suggest you cherish it, as I would.
Zuhkara's lust for violence is intimidating. And a little inspiring.
Mission Complete: You have defeated all of the Circle mages!
Excellent. The soul trap works just as I desired. The Circle will rue the day they allowed us to get our hands on it, Dread Tomax. I can promise you that.