The Prophecy of Akida is a prerequisite for this quest chain.
At Stillpine Hold, the High Chief tells you that their shaman, Kurz the Revelator, had started seeing bad omens some months back. He also saw a "hero not of Stillpine blood" arising. That hero, he says, is you.
The High Chief does not know why the wildkin turned on them, and asks that you take a look into the matter by looking through Stillpine Hold itself.
You look through the hold, and find a huge red crystal embedded in the floor of a lake at the back of the hold.
The crystal appears to be a fragment of the Exodar, but it has been altered, and not for the better. From all appearances, it is dissolving into the water.
You return to the High Chief with your report. The Chief finds this worrisome, as his scouts have reported many more of these blood red crystals to the north. (on Bloodmyst Isle, presumably).
Kurz the Revelator tells you about The Kurken, who you spotted while scouting out the crystal earlier. The wildkin brought this beast into the caves after the crystal storm had passed. Many of the Stillpine fought this beast, but none succeeded in slaying it. The Revelator has had a vision of who will defeat it: you.
It's not a small task, but you prove up to it, and you return with the Kurken's hide to prove it.
The Kurken is slain, but the prophecy is not yet finished with you. There are still important tasks to finish. High Chief Stillpine asks you to warn Exarch Menelaous at Azure Watch. Those other crystals are likely to affect the rest of the land similarly, and the Draenei need to be aware of what they can do.
- +275 Exodar reputation