We've learned that a source of furbolg corruption is from the satyr. They hold sway via talismans that they channel magic through. If the furbolg have a chance at salvation, we must lure out the satyr corruptor and take that talisman!
Fill this bowl at our moonwell and take samples of the furbolgs' food from their northern camp. Mix them and place it near the bonfire by the river; any furbolgs who eat will be cleansed just long enough to lure out the satyr corruptor... who then you must slay!
The Talisman of Corruption is a sinister device that only serves to pervert the balance of nature. When you obtain this item from whatever satyr is tormenting the furbolgs and bring it to me for disposal, we will have won a great victory this day!
We have just begun this war to reclaim our forest from the forces of corruption, but a battle this day has been won! <name>, the people of Auberdine owe you a debt of gratitude that will never be easily repaid. Please accept this along with our thanks. What we have learned here today may one day free our furbolg friends from the shackles of torment permanently.