This quest is not available in game.
Bring 8 Red Burlap Bandanas to Deputy Willem outside the Northshire Abbey.
Recently, a new group of thieves has been hanging around Northshire. They call themselves the Defias Brotherhood, and have been seen across the river to the east.
I don't know what they're up to, but I'm sure it's not good! Bring me the bandanas they wear, and I'll reward you with a weapon.