Exact Opposite

Even the old Khottab has enemies in the desert. He asked us for a small favor, since you're going there anyway.
I even remembered it word for word. There's someone we need to kill. That's how he phrased it, "Fereshte Mazenderani, a creature that is repugnant to any jinn. She is as malicious as they come. While I'm trying to help as many people as I can, she just wants everyone to suffer. She is stronger than the others, and I can't get into her domain!"
He does have a way with words. Anyway, she lives behind the mountain at the edge of the allod, together with several of her... Girlfriends.
Drive her out of this world for a while at least - this way we can repay Khottab for everything he's done and will do for us. Report to him once you're done.

Have you fulfilled my request yet?

Good to know. There will be less evil in these deserts for a while...