https://www.youtube.com/watch?v=OF0i2pSPfrY&feature=youtu.be

After the boss fight, you are greeted by a small figure and their creature they ride on. Piston, the short one, apologizes for the bird's frustration and explains to you that their beloved Windmill is not functioning properly. Without the powerful wind, the valley is nothing to it's other lands.
Piston is a renown mechanic, formally a beast tamer. They settled in the Veering Valley, and managed to tame oneof the wild kite dragons that inhabit the land. Dyneema assists Piston in their work.
The two team up with the player, asking of their help.

Exploring the mill, you find that a massive gear is missing. Could someone have stolen it?