Windseer Grayhorn in Conquest Hold wants you to speak to Orsonn at the Ragefang Shrine and Kodian at the Heart's Blood Shrine.
1x Orsonn's Story
1x Kodian's Story
It is possible that the furbolg of Grizzly Hills have the same taint that plagued Vordrassil. They've been involved in a deadly tribal war recently after years of peaceful coexistence.
The shrines that they guard to the east are home to Ursoc's offspring.
If the corruption has affected the furbolg, it is possible that because of their lineage, Kodian and Orsonn have remained unharmed.
If that's the case, find them and listen to what they have to say.