All over the sky, the stars were coming out.

As we drew back through time, the colonizing fleets from earth were washing back to their origin, in successive waves, and the changes men had wrought to worlds and stars were dismantled. And as that tide of civilization and cultivation receded from the cosmos, the star-masking Spheres were broken apart, one by one. I gazed about in wonder as the old constellations assembled themselves like so many candelabras. Sirius and Orion shone as splendid as on any winter’s night; the Pole Star was over my head, and I could make out the familiar saucepan profile of the Great Bear. Away below me, beyond the curve of earth, were strange groupings of stars I had never seen from England: I did not know the antipodean constellations so well that I could recognize them all, but I could pick out the brutal knife-shape of the Southern Cross, the soft-glowing patches that were the Magellanic Clouds, and those brilliant twins, Alpha and Beta Centauri.

And now, as we sank further into the past, the stars began to slide across the sky. Within moments, it seemed, the familiar constellations were obscured, as the stars’ proper motions — much too slow to be perceptible within a human’s firefly lifetime — became visible to my cosmic gaze.

I pointed out this new phenomenon to Nebogipfel.

Yes. And, see the earth…

I looked. The mask of Glaciation which had disfigured that dear, exhausted globe was already falling away. I saw how the white of it receded towards the Poles, in great pulses, exposing the brown and blue of land and sea beneath.

Abruptly the ice was gone — banished back to its fastnesses at the Poles — and the world turned slowly beneath us, its familiar continents restored. But the earth was wreathed about by clouds; and the clouds were stained with virulent, unnatural colors — browns, purples, oranges. The coasts were ringed with light, and great cities glowed at the heart of every continent. There were even huge, floating towns in the middle of the oceans, I saw. But the air was so foul that in those great cities — if anyone went about on the surface — masks or filters would surely have to be worn, to enable humans to breathe.

Evidently we are witnessing the final days of the modification of the earth by my New Men, I said. We must be traversing millions of years with each minute…

Yes.

Then, why do we not see the earth spin like a top on its axis, and hurtle around the sun?

It is not so simple… These Ships are not like your prototype Time Machine.

Everything we see is a reconstruction, Nebogipfel went on. It is a sort of projection, based on the observations which, as we travel, are entering the Information Sea: that part of the Sea transported by the Ships, at any rate. Such phenomena as the rotation of the earth have been suppressed.

Nebogipfel, what am I? Am I still a man?

You are still yourself, he said firmly. The only difference now is that the machinery which sustains you is not made up of bone and flesh, but of constructs within the Information Sea… You have limbs, not of sinew and blood, but of Understanding.

His voice seemed to float about in space, somewhere around me; I had lost that comforting sensation of his hand in mine, and I could no longer tell if he was near — but I had the feeling that “nearness” was no longer a relevant idea, for I had no clear idea even where “I” was. Whatever I had become, I knew that I was no longer a point of awareness, looking out from a cave of bone.

The air of earth cleared. All over the planet, with startling abruptness, the city-lights dimmed and winked out, and soon the hand of man made no mark on the earth.

There were flurries of volcanism, great flashing spurts which threw up ash clouds that flickered over the world — or, rather, as we receded in time, the clouds drained away into those volcanic punctures — and it seemed to me that the continents were drifting away from their school-room neap positions. Across the great plains of the northern hemisphere, there seemed to be a sort of struggle — slow, millennial — progressing between two classes of vegetation: on the one hand, the pale green-brown grasslands and deciduous forests which lined the continents at the rim of the ice-cap; and on the other, the virulent green of the tropical jungles. For a moment, the jungles won, and in a great flourish, they swept north from the Equator, until they coated the lands from the Tropics, all the way up through Europe and North America. Even Greenland became, briefly, verdant. Then, as fast as they had conquered the earth, the great jungles retreated to their equatorial fastnesses once more, and paler shades of green and brown chased across the faces of the northern continents.

The sliding-about and spinning of the continents became more marked. And as the continents were brought into different climatic regions, their life-colors changed accordingly, so that great bands of green and brown swept across the hapless lands. Huge, devastating spasms of volcanism punctuated these geological waltz-steps.

Now the continents slid together — it was like watching a jigsaw assemble — to form a single, immense land-mass which straddled half the globe. The interior of this great country immediately shriveled to desert.

Nebogipfel said, We have already descended three hundred million years into the past… There are no mammals, no birds, and even the reptiles are barely born.

I replied, I had no idea it was all so graceful, like some rocky ballet — the geologists of my day have so much to understand! It is as if the whole planet is alive, and evolving.

Now the great continent split into three huge masses. I could no longer make out the familiar shapes of the lands of my own time, for the continents spun like dinner-plates on a polished table top. As that immense central desert was broken up the climate became much more variegated; and I could see a series of shallow seas fringing the lands.

Nebogipfel said, Now the amphibians are sliding back to the seas, their prototypical limbs melting away. But there are insects and other invertebrates still on the land: millipedes, mites, spiders and scorpions…

Not a very hospitable place, I remarked.

There are giant dragonflies too, and other wonders — the world is not without beauty.

Now the land began to lose its greenness — a kind of bony brown poked through the receding tide of life — and I surmised that we were passing beyond the appearance of the first leafed plants on land. Soon, the surface of the earth had become a sort of featureless mask of brown and a muddy blue. I knew that life persisted in the seas, but it was simplifying there too, with whole phyla disappearing into History’s womb: first the fish, now the mollusca, now the sponges and jellyfish and worms… At last, I realized, only a thin, green algae — laboring to convert the beating sunlight into oxygen — must remain in the darkened seas. The land was barren and rocky, and the atmosphere had turned thick, stained yellow and brown by noxious gases. Great fires erupted over the earth, all at once. Thick clouds masked the globe, and the seas retreated like drying puddles. But the clouds did not persist for long. The atmosphere became thin, then quite wispy, until at last it vanished altogether. The exposed crust glowed a uniform, dull red, save where great orange scars opened and closed like mouths. There were no seas, no distinction between the ocean and the land: only this endless, battered crust, over which the Time Ships soared, observant and graceful.

And next the glowing of the crust grew brighter — intolerably bright and, with an explosion of glowing fragments, the young earth shook on its axis, shuddered, and flew into bits!