Saturday Fluff: Spirit Eagles Chapter 2

This week, I continue the further history of my home-brewed space marine chapter; The Spirit Eagles.
If you haven't already, you should read chapter one! 
Chapter 1

A Child from the Stars
One particularly cold and starless night a great blue light, the shape of an arrow head, fell from the sky. Riding that arc of blue, a small space vessel plummeted to earth and crashed into the wilds populated by the Tribe of the Black Bear. Tribal elders dispatched a party of warriors to seek out the cause of this phenomena and meet any potential evil with swift justice. Seven warriors volunteered and set out to seek the source of the strange light.