Scouring the Desert quest

[Lexi]

I picked up the SIlithyst and got the aura, and I ran back to the camp. But there isn't a portal thing I'm suppose to run the aura into.

Is this quest bugged?

Quest: Silithus - Scouring the Desert

There's no silithus extractor?

[Lexi]

Have the aura, but there is no machine (Silithyst Extractor) which is suppose to be part of the quest.