Slay Chancellor Bloodleaf and Corok the Mighty and recover Illidan's Command. Use the Wildhammer Flare Gun to signal another Wildhammer Gryphon Rider once you have accomplished this task. Speak with Thane Yoregar at Wildhammer Stronghold in Shadowmoon Valley should you lose your Wildhammer Flare Gun and require a replacement.
At the southern end of the Path of Conquest, near a stationary caravan, I discovered what looked like a meeting between a giant and a blood elf chancellor. What are giants even doing here? Something is just not right about all of this, grunt.
I want you to fight your way to this meeting and break up the party. Recover whatever you can from the scene and then call for one of us with the flare gun.