It was a time of invention and discovery. Humans had uncovered the secret of life, colonized other worlds and revolutionized medicine. No more hunger. No more sickness. Travel to anywhere in the galaxy, all at low cost. How could life possibly be better? It was the one question no one should have asked.
Humans conceived the ultra races to improve mankind. At first, humans bore them. Each generation gained in power, intelligence. Stronger, faster, smarter, better. Eventually, clones designed for childbirth churned out the humans' highly specialized young while humans themselves turned to loftier goals: art, music, literature. Peace.
Before anyone could stop it, one generation gained the ultimate power. Making themselves invincible, the nearly immortal ultras created other races far less human than themselves. Using animal DNA, they created telepathic and empathic beings, shape-shifters, non-human beings, and illusion-casters. The immortals became like gods.
Far too late, humans realized the danger.