

They came to our space- time continuum from some horribly different plenum. The Eddorians, on the other hand, were interlopers.

Thus all our normal space was permeated by Arisian life-spores, and thus upon all Earth-like planets there came into being races more or less like what the Arisians had been in the days of their racial youth. The original Arisia was very much like Earth. They had lived in it since the unthinkably remote time of their origin. The Arisians were native to this, our normal space-time continuum. Each had won a large measure of power over its environment the Arisians by force of mind alone, the Eddorians by employing both mind and mechanism. Each had become independent of the chance formation of planets upon which to live. A couple of billion years ago, when the first and Second Galaxies were passing through each other and when myriads of planets were coming into being where only a handful had existed before, two races of beings were already ancient.
