Avalaons. A species dedicate to bring balance to the galaxy. They have watched dozens of species rise and forge a place in the stars. When the time was right, they revealed themselves, offering peace and good tidings, exchange technology and ideals, and a betterment of the galaxy as a whole.
A new species was discovered, a satellite found drifting among the stars, bearing messages from a planet called Earth.
They came to Earth to see them, to study their species and watch as they began their steps into the home of stars.
They found none of these.
Only extinction.
And their executioners living on their world, proclaiming it as their own.