I couldn't find any info on this elsewhere, so I figured I'd ask. The Mist Ghoul teeth's lore includes the line "You got proof of their existence... Now to find someone who believes you."

Is there a character/location you can visit to initiate a quest line using these? I'd love to be able to take them somewhere and get an actual story for hunting down the mist mother, but I don't want to hold onto these unless I know they actually mean something.