This quest is not available in game.
Speak with Arch Druid Fandral Staghelm in Darnassus.
I have always wondered about the truth... Well, you must share this knowledge, definitely! Go to Arch Druid Fandral Staghelm right away -- you'll find him in Darnassus, in the Cenarion Circle. Explain to him what happened, just the same as you told me. I'm sure he will be just as interested!
This is important information, <name>!