Bring 8 Smoldering Embers from any of the fire elementals in the Charred Vale to Kaela Shadowspear in Stonetalon.
I'm unsure what the Venture Co. did to the Vale, but it's obvious they were overpowered by the creatures there.
They set the forest aflame, and used their inventions of destruction to decimate as much of the Vale as possible.
But in their ignorance they also released something else: burning spirits, elementals of flame, stone and rage.
The land has no chance to see Elune's smile while these creatures roam free.
Bring me their smoldering embers to show you've reduced their numbers.