Raiders of the Universes

By Donald Wandrei

It was in the thirty-fourth century that the dark star began its famous conquest, unparalleled in stellar annals. Phobar the astronomer discovered it. He was sweeping the heavens with one of the newly invented multi-powered Sussendorf comet-hunters when something caught his eye—a new star of great brilliance in the foreground of the constellation Hercules.

For the rest of the night, he cast aside all his plans and concentrated on the one star. He witnessed an unprecedented event. Mercia's nullifier had just been invented, a curious and intricate device, based on four-dimensional geometry, that made it possible to see occurrences in the universe which had hitherto required the hundreds of years needed for light to cross the intervening space before they were visible on Earth. By a hasty calculation with the aid of this invention, Phobar found that the new star was about three thousand light-years distant, and that it was hurtling backward into space at the rate of twelve hundred miles per second. The remarkable feature of his discovery was this appearance of a fourth-magnitude star where none had been known to exist. Perhaps it had come into existence this very night.

On the succeeding night, he was given a greater surprise. In line with the first star, but several hundred light-years nearer, was a second new star of even more brightness. And it, too, was hurtling backward into space at approximately twelve hundred miles per second. Phobar was astonished. Two new stars discovered within twenty-four hours in the same part of the heavens, both of the fourth magnitude! But his surprise was as nothing when on the succeeding night, even while he watched, a third new star appeared in line with these, but much closer.

At midnight he first noticed a pin-point of faint light; by one o'clock the star was of eighth magnitude. At two it was a brilliant sun of the second magnitude blazing away from Earth like the others at a rate of twelve hundred miles per second. And on the next evening, and the next, and the next, other new stars appeared until there were seven in all, every one on a line in the same constellation Hercules, every one with the same radiance and the same proper motion, though of varying size!

Phobar had broadcast his discovery to incredulous astronomers; but as star after star appeared nightly, all the telescopes on Earth were turned toward one of the most spectacular cataclysms that history recorded. Far out in the depths of space, with unheard-of regularity and unheard-of precision, new worlds were flaming up overnight in a line that began at Hercules and extended toward the solar system.

Phobar's announcement was immediately flashed to Venus, Mars, Jupiter, and Saturn, the other members of the Five World Federation. Saturn reported no evidence of the phenomena, because of the interfering rings and the lack of Mercia's nullifier. But Jupiter, with a similar device, witnessed the phenomena and announced furthermore that many stars in the neighborhood of the novæ had begun to deviate in singular and abrupt fashion from their normal positions.

There was not as yet much popular interest in the phenomena. Without Mercia's nullifier, the stars were not visible to ordinary eyes, since the light-rays would take years to reach the Earth. But every astronomer who had access to Mercia's nullifier hastened to focus his telescope on the region where extraordinary events were taking place out in the unfathomable gulf of night. Some terrific force was at work, creating worlds and disturbing the positions of stars within a radius already known to extend billions and trillions of miles from the path of the seven new stars. But of the nature of that force, astronomers could only guess.

Phobar took up his duties early on the eighth night. The last star had appeared about five hundred light-years distant. If an eighth new star was found, it should be not more than a few light-years away. But nothing happened. All night Phobar kept his telescope pointed at the probable spot, but search as he might, the heavens showed nothing new. In the morning he sought eagerly for news of any discovery made by fellow-watchers, but they, too, had found nothing unusual. Could it be that the mystery would now fade away, a new riddle of the skies?

The next evening, he took up his position once more, training his telescope on the seven bright stars, and then on the region where an eighth, if there were one, should appear. For hours he searched the abyss in vain. He could find none. Apparently the phenomena were ended. At midnight he took a last glance before entering on some tedious calculations. It was there! In the center of the telescope a faint, hazy object steadily grew in brightness. All his problems were forgotten as Phobar watched the eighth star increase hourly. Closer than any other, closer even than Alpha Centauri, the new sun appeared, scarcely three light-years away across the void surrounding the solar system. And all the while he watched, he witnessed a thing no man had ever before seen—the birth of a world!

By one o'clock, the new star was of fifth magnitude; by two it was of the first. As the faint flush of dawn began to come toward the close of that frosty, moonless November night, the new star was a great white-hot object more brilliant than any other star in the heavens. Phobar knew that when its light finally reached Earth so that ordinary eyes could see, it would be the most beautiful object in the night sky. What was the reason for these unparalleled births of worlds and the terrifying mathematical precision that characterized them?

Whatever the cosmic force behind, it was progressing toward the solar system. Perhaps it would even disturb the balance of the planets. The possible chance of such an event had already called the attention of some astronomers, but the whole phenomenon was too inexplicable to permit more than speculation.

The next evening was cloudy. Jupiter reported nothing new except that Neptune had deviated from its course and tended to pursue an erratic and puzzling new orbit.

Phobar pondered long over this last news item and turned his attention to the outermost planet on the succeeding night. To his surprise, he had great difficulty in locating it. The ephemeris was of absolutely no use. When he did locate Neptune after a brief search, he discovered it more than eighty million miles from its scheduled place! This was at one-forty. At two-ten he was thunderstruck by a special announcement sent from the Central Bureau to every observatory and astronomer of note throughout the world, proclaiming the discovery of an ultra-Plutonian planet. Phobar was incredulous. For centuries it had been proved that no planet beyond Pluto could possibly exist.

With feverish haste, Phobar ran to the huge telescope and rapidly focused it where the new planet should be. Five hundred million miles beyond Neptune was a flaming path like the beam of a giant searchlight that extended exactly to the eighth solar planet. Phobar gasped. He could hardly credit the testimony of his eyes. He looked more closely. The great stream of flame still crossed his line of vision. But this time he saw something else: at the precise farther end of the flame-path a round disk—dark!

Beyond a doubt, a new planet of vast size now formed an addition to the solar group. But that planet was almost impervious to the illuminating rays of the sun and was barely discernible. Neptune itself shone brighter than it ever had, and was falling away from the sun at a rate of twelve hundred miles per second.

All night Phobar watched the double mystery. By three o'clock, he was convinced, as far as lightning calculations showed, that the invader was hurtling toward the sun