Use Szeth's Diaku Illusion Elixir to make the Daiku forces non-aggro and proceed toward ( 428, 52, -212 ) Copy/waypoint 428.34, 51.95, -212.14. Note: The illusion does not work on the heroic Diaku.
You will be recognized and teleported. Witness the conversation. You will be teleported into Shining Mesa Stronghold. Note: Be sure to resummon your mount.
You will be attacked by a Daughter of the Sungod, Invoker of Flame and Diviner of Flame. You will not be able to damage them. Eventually Khap will appear and defeat them. Speak with Khap.
Continue to ( 384, 65, -287 ) Copy/waypoint 384.18, 65.15, -287.05 and walk through the portal to return to Wracklands.
Return to Szeth Hibis'kis at ( 541, 35, 151 ) Copy/waypoint 541.13, 34.55, 150.72.