A Growing Mystery

Kill mutated lashers. Seems to be that big and small lashers both give runestone fragments. Also if you see a lasher vine, click on it and "pull". Both of the ones I did gave fragments.

If you are looking for [icondb=2341436] [npc=152633] , just go to the main section of Wowhead, in "Today in WoW" and check if [npc=152501] is among the Mechagon Visitors. If so, she will give you the Clues Abound quest which you must finish with [npc=152633] who will appear flying over a [icondb=652810] flying disc of "The Lorewalkers" once you have arrived to the quest area and will accompany you until you find one of the three objects that triggers the following missions:

1. 
   
2. A Growing Mystery Object Needed →[item=168234] founded inside [object=325965]
3. 
   
4. A Historical Mess Object Needed →[item=168223]
5. 
   
6. Time for Heroics Object Needed →[item=168236]
7. 
   

Good luck!

I can confirm if you're on the quest A Growing Mystery, you can the Link which drops the Link starting the quest Link whilst on A Growing Mystery you can also kill the Link which drop the Link starting the quest Link .

This is my first wowhead comment so sorry if the format is messed up.