seas and harsh continents of rock without any speck of life upon them. The skies were heavily clouded and rain fell continually.
Down upon that world Woodin felt himself dropping, with a host of weird companions. They were each an amorphous, glistening, single-celled mass, with a dark nucelus at its center. They were Arctarians and Woodin knew that he was an Arctarian, and that he had come with the others a long way through space toward this world.
They landed in hosts upon the harsh and lifeless planet. They exerted their mentalities and by sheer telekinetic force of mental energy they altered the material world to suit them. They reared great structures and cities, cities that were not of matter but of thought. Weird cities built of crystallized mental energy.
Woodin could not comprehend a millionth of the activities he sensed going on in those alien Arctarian cities of thought. He realized a vast ordered mass of inquiry, investigation, experiment and communication, but all beyond his present human mind in motives and achievement. Abruptly all dissolved in gray mists again.
The mists cleared almost at once and now Woodin looked on another scene. It was later in time, this one. And now Woodin saw that time had worked strange changes upon the hosts of Arctarians, of which he still was one.
They had changed from unicellular to multicellular beings. And they were no longer all the same. Some were sessile, fixed in one spot, others mobile. Some betrayed a tendency toward the water, others toward the land. Something had changed the bodily form of the Arctarians as generations passed, branching them out in different lines.
This strange degeneration of their bodies had been accompanied by a kindred degeneration of their minds. Woodin sensed that. In the thought-cities the ordered process of search for knowledge and power had become confused, chaotic. And the thought-cities themselves were vanishing, the Arctarians having no longer sufficient mental energy to maintain them.
The Arctarians were trying to ascertain what was causing this strange bodily and mental degeneration in them. They thought it was something that was affecting the genes of their bodies, but what it was they could not guess. On no other world had they ever degenerated so!
That scene passed rapidly into another much later. Woodin now saw the scene, for by then the ancestor, whose mind he looked through, had developed eyes. And he saw that the degeneration had now gone far, the Arctarians' multicellular bodies more and more stricken by the diseases of complexity and diversification.
THE last of the thought-cities now were gone. The once mighty Arctarians had become hideous, complex organisms degenerating ever further, some of them creeping and swimming in the waters, others fixed upon the land.
They still had left some of the great original mentality of their ancestors. These monstrously-degenerated creatures of land and sea, living in what Woodin's mind recognized as the late Paleozoic age, still made frantic and futile attempts to halt the terrible progress of their degradation.
Woodin's mind flashed into a scene later still, in the Mesozoic. Now the spreading degeneration had made of
