Invoking the Serpent

Objectives
Defeat Arikara.
 * defeated
 * Shu'halo Artifacts (provided)

Description
I am familiar with these artifacts. I believe that they were brought here by herself. But she's not amongst the Grimtotem on Darkcloud Pinnacle. She disappeared right after she arrived, and no one knows where she is now.

Maybe we can find out.

Take the rattle, the writ, and the drum out to Arikara's Needle. If my guess is correct, the wind serpent will appear again. You'll have to defeat it to gain knowledge of where Magatha is hiding.

Rewards
You will also receive:
 * 625 XP
 * +350 reputation with Darnassus /  Thunder Bluff
 * +350 reputation with Darnassus /  Thunder Bluff

Progress
Only by subduing Arikara will you discover where Magatha Grimtotem is hiding.

Completion
So, she's been taken prisoner by the Twilight's Hammer. I can't say that I feel sorry for her, but she might prove even more dangerous in their hands.

Progression
Completion of this quest then gives you the next quest in the series, Trouble at Highperch.