Editing Jugg/Quests/Swamp Filth/about

Talk to Vellos Jul in Branendel Square, then go to the witch in Emilia's swamp, fight her 3 70 hp witch's varlets, speak to her again and then fight 5, speak to her again then fight another 8, then go back and speak to her again and kill 4 Bog Fingers, 4 Marsh Fireballs and 4 Marsh Hissers, then return to her and talk, take  the Impurior and click Apply on it in your backpack to release the spirit and fight it (pretty weak, has 300 hp)then talk to Rachlia the witch again and get an item from her to give to Vellos Jul who gives you 15 small xp elixirs, 35 gold and 85 radway reputation