Deliver Fandral's message to Onu in the Grove of the Ancients in Darkshore, south of Auberdine.
If you had enough time to run messages for the Oracle Tree, then I'm sure that I can press you into service to deliver a message to the Grove of the Ancients in Darkshore, due south of Auberdine.
You will most likely have to secure transport on a hippogryph, but I have faith enough in you that you can manage that. Take this to Onu, the Ancient of Lore. He has been awaiting word from me, even as I waited for news from the Oracle Glade.