Captured Village or Occupied Village -accessible from level 4
You can get these quests from Chief Kort or Chief Torgor
After killing Kretch Butcher  , you can obtain a unique artefact - Butcher Evil Eye and increase your Juggernaut reputation. Spider Patriarch  also dwells in the instance and if you destroy it you can possess another valuable artefact - Female Ashen Spider Egg as well as increasing your Juggernaut reputation.
If you take the Female Ashen Spider Egg to Gredeya the Witch or Brugilda the Sorceress, they will exchange them for Quicksilver. The quantity of Quicksilver will directly depend on Juggernaut reputation growth.