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The Camonna Tong are not the only criminal gang that the Thieves Guild has trouble from. The Ja-Natta Syndicate are also present in the Foreign Quarter. Thorleif Stage-Hand wants you to steal a shipment of greydust from them to prevent its distribution on the streets of Narsis. The shipment is supposedly in the central sewers of the Council Quarter. Thorleif recommends speaking to Aliah Saryni for directions before leaving. She's in the theater, and recommends accessing the sewers through a hatch in the basement of the Narsis Arena. It's a good tip. Head to the Arena (in the Council Quarter) and seek out this hatch in its Holdind Cells. Once in the sewers, make your way east towards the central Council Quarter sewers.
The shipment is guarded by Koldi the Pup, near the entrance to the Old Quarter sewers. If you're an Enforcer or higher in the Ja-Natta Syndicate, you can just demand to take the shipment from her. Otherwise, you'll need to steal the twelve vials from the crate behind her. Once you have all twelve, bring them to Thorleif to conclude the quest. He hopes that it will give the poor people of Narsis a breather for a while.
The following Journal ID and Index codes can be used with the Journalconsole command to manually update the quest to a certain point.
The Devil You Know (TR_m7_Ns_TG_4)
Index
Finishes Quest
Journal Entry
10
Thorleif Stage-Hand wants me to steal a shipment of greydust from the Council Quarter sewers in Narsis. I've been told that the shipment of twelve vials is kept in the central part of the sewers, and it's guarded by Koldi the Pup, a Ja-Natta Syndicate thug.
100
Finishes quest
Thorleif Stage-Hand thanked me for bringing him the shipment of greydust.