In Serpent Wild, Hagar Lightninghoof sends you to Whitereach Post to seek advice from Motega Firemane. This is the second quest in the Arikara quest chain, a series of quests involving the serpent Arikara in Thousand Needles. The first quest can be picked up at Freewind Post in Thousand Needles from Hagar Lightninghoof.
To Get This Quest Edit
Report your findings to Motega Firemane.
Head along the road in the north-west direction until you come to Whitereach Post. It is on the left side of the road and is very small, with only a few tents, tauren, and a goblin. Speak to Motega Firemane to complete the quest, his coordinates are [21, 32].
If I did not see that with my own eyes I would never have believed it to be true. Vengeance has come to Thousand Needles!
<Hagar wipes his brow.>
<name>, you must act quickly! Go now and seek out Motega Firemane; he is located at Whitereach Post just northwest of Freewind Post along the road. He will know what to do!
Vengeance! So, the legend of Arikara is true. Indeed, this is a problem that must be resolved immediately.