Raiders of the universes

In Short

When a rogue dark star enters the solar system, it destabilizes planetary orbits and begins draining energy directly from the sun. Transported aboard this invading world, astronomer Phobar discovers that the invaders are living metal entities from an ancient, dying universe. These entities demand Earth's entire supply of radium ore under threat of complete annihilation. Facing a vastly superior intelligence, Phobar must rely on his own physical nature and quick thinking to turn the invaders' advanced technology against them, attempting to disrupt their control mechanisms before the solar system is destroyed.

The Story

The crisis begins in the thirty-fourth century when astronomer Phobar detects a sequence of new stars appearing night after night in a precise line, signaling the rapid approach of a massive cosmic force. Soon, an ultra-Plutonian dark star arrives at the edge of the solar system. The invader deploys colossal pillars of fire across space, pulling Neptune from its orbit, tearing apart the gravitational balance of the planets, and siphoning energy directly from the sun, plunging Earth into a reddish twilight and triggering global panic, natural disasters, and societal collapse.

Without warning, an orange transport ray picks Phobar up from Earth and materializes him inside a titanic metal structure on the dark star, known as Xlarbti. He is brought before Garboreggg, the ruler of these metallic beings. Garboreggg reveals that his race originated eons ago in an ultra-ancient universe. To escape their universe's death, they constructed the artificial world Xlarbti out of a rare element and accelerated it across the void between universes. Now running low on energy, they traverse space as cosmic raiders, extracting radium from younger worlds. Garboreggg orders Phobar to instruct Earth to surrender all its radium ore within seven days or face total vaporizing destruction, demonstrating his power by obliterating New York City with a beam of energy.

Realizing that humanity cannot fight the invaders with force, Phobar searches for an opportunity while still aboard Xlarbti. Because the metal creatures can read his immediate thoughts, he masks his intentions by dwelling on nursery rhymes and forgotten Greek texts. As he is escorted back to the transport disk, he creates a vivid mental image of a sudden attack to distract his captor.

Taking advantage of the moment, Phobar throws his heavy ring of keys directly onto the control panel, hitting the switch for the Krangor-wave—a device designed to eliminate atomic spatial distance within Xlarbti's element. The wave causes the entire metallic planet, its structures, and its living metal inhabitants to rapidly shrink. Because Phobar is composed of matter from a different universe, he remains at his normal size.

As the giant roof collapses inward and the metal monsters diminish into foot-high pygmies, Phobar smashes the size-regulating switch to prevent them from reversing the effect. He crushes the surrounding creatures underfoot, jams the planet's propulsion controls to full attraction and repulsion, and activates the transport ray just before the collapsing structure crushes him. He materializes back on Earth to find the flame-paths gone and the dark star catapulted out of the solar system into deep space, leaving Earth to recover from the ordeal.

How It Unfolds

A strange sequence in the heavens Phobar discovers a series of brilliant new stars appearing overnight in a straight line, pointing directly toward the solar system.

The invader strikes the sun The dark star arrives, casting gigantic pillars of flame across space that pull Neptune from its orbit and siphon the sun's energy, triggering global catastrophe on Earth.

Transported to Xlarbti An orange ray snatches Phobar from Earth and brings him aboard the giant metallic planet, where he meets the ruler, Garboreggg.

The ultimatum delivered Garboreggg explains his race's origins, demands Earth's radium ores within seven days, and obliterates New York City to demonstrate his power.

A desperate ploy Phobar masks his thoughts with ancient Greek text and nursery rhymes before tossing his keys onto the control panel to trigger a planet-shrinking wave.

The turn of the tide As Xlarbti and its metal inhabitants shrink into tiny pygmies, the unaffected Phobar crushes his captors, jams the navigation controls, and escapes back to Earth.

The People

• Phobar: An astronomer of the thirty-fourth century who first discovers the approaching dark star. When captured by the metallic invaders, he uses his knowledge of history and physical composition to outwit an entity far more powerful than himself.
• Garboreggg: The ruler of Xlarbti, describing himself as the Lord of the Universes. Cold, dispassionate, and highly advanced, he views organic life as trivial and demands Earth's resources without regard for the destruction left behind.
• The Metal Monsters: The living inhabitants of Xlarbti, composed of pliant metal and sustained by raw energy. They possess massive physical height and telepathic abilities, reading thought-pictures directly from organic minds.

In Its Own Voice

"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."

Phobar uses a newly developed instrument to observe distant cosmic anomalies in real time.

"Trillions of years ago in your time-calculation, but only a few dozen centuries ago in ours, life arose on the giant world Kygpton in our universe."

Garboreggg explains the ancient history and extra-universal origins of his metallic species.

"And even in that instant of wild action, Phobar shouted aloud--for this whole world was collapsing, together with everything on it, except he himself who came of a different universe and remained unaffected!"

Phobar realizes that his physical nature protects him from the shrinking effect ruining the invader's planet.

What It's Really About

The narrative explores the contrast between vast, ancient intelligence and the survival instincts of younger species. The invaders represent a civilization that has outlived its home universe through pure engineering and cold rationality, stripping away all organic elements in favor of efficiency and power. Against this mechanical indifference, human defense relies not on equivalent force, but on improvisation, physical differences, and subtle mental misdirection. The story captures early science fiction's fascination with scale, planetary mechanics, and the vulnerabilities hidden within seemingly absolute technological power.

Why Read It Today

This work offers a clear sample of 1930s pulp science fiction, characterized by immense cosmic proportions, rapid plotting, and inventive speculative technology. Readers interested in the history of the genre will appreciate its dramatic depiction of interplanetary threats and giant engineering feats, from extra-universal travel to artificial worlds.

The prose reflects its era with straightforward, sensational phrasing and rapid transitions between astronomical observation and direct action. While the scientific concepts rely on period-specific tropes—such as sudden spatial ray actions and simplified planetary dynamics—the narrative moves briskly from its initial discovery to the final confrontation, providing an engaging look at early space-opera storytelling.