You have found one of the Winterfall furbolg's ritual totems. The totem itself is of non-descript construction, but it seems to emanate an almost tangible sense of dread and despair. If many of the Winterfall furbolgs do indeed carry these, it certainly would go a long way in explaining their current condition. One of the furbolgs inside Timbermaw Hold may have a use for such an item... that is, if you've earned their trust enough for them to speak with you.
You receive
Reputation