Travel north along the main road in Felwood and speak with the furbolg named Nafien. He stands guard outside the entrance to Timbermaw Hold.
Perhaps you are capable of handling a larger threat that we Timbermaw face. You certainly have shown yourself capable here...
Another of my kind stands guard outside the entrance to Timbermaw Hold, along this road far to the north. His name is Nafien; while he may appear to be a feral and unsavory beast, fear him not. He only seeks aid against the malign forces that threaten our home.