Head to the Explorers' League Digsite in Southern Stranglethorn Vale.
The other Darkspear emissary was here briefly. He was eager to get to the next location and warn them. I sent him on a flight to the Explorers' League Digsite in the Cape of Stranglethorn. I hope he wasn't too late.
I will give you use of one of my gryphons, a direct flight there.
Talk to me when you are ready to go, <name>.