Robert Sawyer - Forever

Five planets could be seen with the naked eye: Sunhugger, Silver, Red, High, and Slow; all five had been known since ancient times. In the two hundred years since the invention of the telescope, much had been discovered about them. Tiny Sunhugger and bright Silver went through phases, just like the moon did; Red had visible surface features, although exactly what they were was still open to considerable debate. High was banded, and had its own coterie of at least four moons, and SlowSlow was the most beautiful of all, with a thin ring orbiting around its equator.

Almost a hundred years ago, Ixoor the Scaly had discovered a sixth planetone that moved around the Sun at a more indolent pace than even Slow did; Slow took twenty-nine years to make an orbit, but Ixoors World took an astonishing eighty-four.

Ixoors Worldyes, she had named it after herself, assuring her immortality. And ever since that discovery, the search had been on for more planets.

Cholo, an astronomer who lived in the capital city of Beskaltek, thought hed found a new planet himself, about ten years ago. Hed been looking precisely where Raymers law predicted an as-yet-undiscovered planet should exist, between the orbits of Red and High. But it soon became apparent that what Cholo had found was nothing more than a giant rock, an orbiting island. Others soon found additional rocks in approximately the same orbit. That made Cholo more determined than ever to continue scanning the heavens each night; hed rather let a meatscooper swallow him whole than have his only claim to fame be the discovery of a boulder in space

He searched and searched and searched, hoping to discover a seventh planet. And, one night, he did find something previously uncatalogued in the sky. His tail bounced up and down in delight, and he found himself hissing Cholos world softly over and over againit had a glorious sound to it.

But, as he continued to plot the objects orbit over many months, making notes with a claw dipped in ink by the light of a lamp burning sea-serpent oil, it became clear that it wasnt another planet at all.

Still, he had surely found his claim to immortality.

Assuming, of course, that anyone would be left alive after the impact to remember his name.

Youre saying this flying mountain will hit the Earth? said Queen Kava, looking down her long green-and-yellow muzzle at Cholo.

The Queens office had a huge window overlooking the courtyard. Cholos gaze was momentarily distracted by the sight of a large, furry winger gliding by. He turned back to the queen. Im not completely thirty-six thirty-sixths certain, Your Highness, he said. But, yes, Id say its highly likely.

Kavas tail, which, like all Shizoo tails, stuck straight out behind her horizontally held body, was resting on an intricately carved wooden mount. Her chest, meanwhile, was supported from beneath by a padded cradle. And what will happen to the Earth when this giant rock hits us?

Cholo was standing freely; no one was allowed to sit in the presence of the Queen. He tilted his torso backward from the hips, letting the tip of his stiff tail briefly touch the polished wooden floor of the throne room. Doubtless Your Highness has seen sketches of the moons surface, as observed through telescopes. We believe those craters were made by the impacts of similar minor planets, long ago.

What if your flying rock hits one of our cities?

The city would be completely destroyed, of course, said Cholo. Fortunately, Shizoo civilization only covers a tiny part of the globe. Anyway, odds are that it will impact the ocean. But if it does hit on land, the chances are minuscule that it will be in an inhabited area.

The Shizoo lived on an archipelago of equatorial islands. Although many kinds of small animals existed on the islands, the greatest beastswild shieldhorns, meatscoopers, the larger types of shovelbillswere not found here. Whenever the Shizoo had tried to establish a colony on the mainland, disaster ensued. Even those who had never ventured from the islands knew of the damage a lone meatscooper or a marauding pack of terrorclaws could inflict.

A nictitating membrane passed in front of Kavas golden eyes. Then we have nothing to worry about, she said.

If it hits the land, replied Cholo, yes, we are probably safe. But if it hits the ocean, the waves it kicks up may overwhelm our islands. We have to be prepared for that.

Queen Kavas jaw dropped in astonishment, revealing her curved, serrated teeth.

Cholo predicted they had many months before the flying mountain would crash into the Earth. During that time, the Shizoo built embankments along the perimeters of their islands. Stones had to be imported from the mainlandShizoo usually built with wood, but something stronger would be needed to withstand the waves.

There was much resistance at first. The tiny dot, visible only in a telescope, seemed so insignificant. How could it pose a threat to the proud and ancient Shizoo race?

But the dot grew. Eventually, it became visible with the naked eye. It swelled in size, night after night. On the last night it was seen, it had grown to rival the apparent diameter of the moon.

Cholo had no way to know for sure when the impact would occur. Indeed, he harbored a faint hope that the asteroid would disintegrate and vaporize in the atmospherehe was sure that friction with the air was what caused shooting stars to streak across the firmament. But, of course, Cholos rock was too big for that.

The sound of the asteroids impact was heard early in the morninga great thunderclap, off in the distance. But Cholo knew sound took time to travelit would take three-quarters of a day for a sound to travel halfway around the world.

Most of the adult population had stayed up, unable to sleep. When the sound did come, some of the Shizoo hissed in contempt. A big noise; that was all. Hardly anything to worry about. Cholo had panicked everyone for no good reason; perhaps his tail should be cut off in punishment

But within a few days, Cholo was vindicatedin the worst possible way.

The storms came firstgreat gale-force winds that knocked down trees and blew apart huts. Cholo had been outdoors when the first high winds hit; he saw wingers crumple in the sky, and barely made it to shelter himself, entering a strongly built wooden shop.

A domesticated shieldhorn had been wandering down the same dirt road Cholo had been on; it dug in its four feet, and tipped its head back so that its neck shield wouldnt catch the wind. But five of its babies had been following along behind it, and Cholo saw them go flying into the air like so many leaves. The shieldhorn opened her mouth and was doubtless bellowing her outrage, but not even the cry of a great crested shovelbill would have been audible over the roar of this storm.