Poe had a simple life, he was training under his mother to become the tribe healer. His mother was a powerful spirit-caller who summoned an old grippli hero to defend the tribe, but Poe was not like his mother, and he was okay with that.
That all changed when a traveling merchant came to their village carrying exotic goods, some all the way from Absalom. Among the trinkets was a necklace with two large tusts on it, as big as a grippli hand. Poe was enamored with the necklace and purchased it without hesitation. For a short while Poe wore the necklace proudly, it was the type of thing a mighty hunter would have and it made hime feel strong.
Then the ghost starting haunting him. It started small; glimpses of an incorporeal form, unexplained screams of rage in the night, silvery goo showing up in the hut. Soon the phantom fully manifested and confronted poe, tearing the necklace from his chest and destroying it in the hut's fire. It bellowed at him "My teeth turned into jewelry! Was I not buried!? Did scavengers pull my teeth with my boots!? There will be reckoning for this!" and the phantom stormed off into the night.
It didn't stay gone. For two more nights it returned, raged, and stormed off.