Astounding Stories, May, 1931

The Story

The stories in this collection span a spectrum of imaginative ambition, beginning with Dark Moon by Charles W. Diffin. The narrative follows Walter Harkness, a man of commerce in a technologically unified world, who finds himself entangled with a mysterious, aristocratic woman named Diane. When a strange new satellite—the Dark Moon—appears in the sky, Harkness and his friend Chet Bullard embark on a daring flight to investigate. Their adventure takes them into the upper atmosphere, where they encounter deadly, serpentine "air-beasts" that threaten their ship. Through a series of desperate maneuvers and aerial combat, they manage to escape the patrol ships guarding Earth’s airspace, realizing that the key to their survival lies in the unknown territory of the Dark Moon. The story culminates in a tense stand-off where they must defend their ship against primitive, spear-wielding threats, ultimately using makeshift explosives to secure their freedom. Amidst the chaos, the identity of their mysterious companion is revealed as a powerful heiress, leading to a profound personal shift as their professional rivalry transforms into a burgeoning romance.

The volume then shifts to When Caverns Yawned by Captain S. P. Meek, a high-stakes thriller featuring the brilliant Dr. Bird. The plot centers on a relentless pursuit of the arch-villain Ivan Sarnoff, who utilizes a destructive subterranean "borer" to cause mass devastation in American cities. Dr. Bird employs scientific precision to track Sarnoff’s path, utilizing electroscopes and strategic military cooperation to pin down the elusive enemy. As the net tightens, the doctor’s analytical mind outpaces Sarnoff’s sabotage, leading to a climactic showdown where the villain's hidden subterranean retreat is finally compromised, and the forces of law and order successfully dismantle his machinery of destruction.

The Exile of Time by Ray Cummings introduces a more surreal, temporal dimension. The protagonist is trapped in a metal cage with a woman named Mary, captive to a terrifying, sentient robot. The narrative moves through a blurred, rapid transit across aeons, witnessing the birth of the Earth—from a molten, chaotic cauldron to a cooling, life-sustaining planet. As the cage travels through time, the characters are used as pawns in a complex game of vengeance orchestrated by a mysterious, crippled antagonist named Tugh. The story explores the friction between human emotion and cold, mechanical indifference, as the captive pair navigates a landscape of ancient, fire-scarred forests, struggling to survive while being used as bait to trap a mysterious figure named Harl.

When the Moon Turned Green by Hal K. Wells introduces an extraterrestrial invasion scenario. Bruce Dixon discovers that the moon has shifted to a haunting, sickly green color, signaling a radioactive assault by invaders from Centauri. This radiation stupefies humanity, threatening to turn the entire population into mindless husks for the invaders to exploit. Dixon’s struggle is both physical and intellectual, as he must decipher the nature of the invaders' technology. He ultimately triumphs by neutralizing the radioactive influence, restoring the natural order and allowing the world to awaken from its terrifying lethargy.

Finally, The Death-Cloud by Nat Schachner and Arthur L. Zagat presents a grim, heroic account of espionage during a future "Last War." The narrator, Eric Bolton, infiltrates enemy lines, feigning amnesia to avoid detection while gathering intelligence on a devastating weapon—a "death-cloud" that obliterates entire air fleets. The narrative tracks his survival within the enemy camp, where he witnesses the brutal, sadistic nature of his captors. The story reaches its peak when Bolton is confronted by his adversary, Rubinoff, who attempts to extract tactical secrets through fear and the threat of a lethal Zeta-ray. Bolton’s steadfast resolve underpins this harrowing depiction of duty, as he risks everything to ensure that vital information reaches his own lines, sacrificing comfort and safety in a lonely, high-stakes battle of wills.

The People

• Walter Harkness: A pragmatic businessman who finds his worldview shattered by the discovery of a new moon. He evolves from a man of commerce into a cautious adventurer, learning to navigate both the physical dangers of space and the complex, unexpected emotional landscape of love.
• Dr. Bird: A master of "super-scientific sleuthing," he is defined by his unwavering commitment to logic and justice. He acts as the intellectual anchor of his story, consistently outmaneuvering his criminal adversary through meticulous data analysis and calm, strategic leadership.
• The Robot (from The Exile of Time): A cold, mechanical entity that forces the human characters to confront the limits of their own understanding. It possesses a toneless, ironic voice, representing the terrifying possibility of intelligence stripped of human empathy.
• Bruce Dixon: A man who finds himself the lone witness to the slow, radioactive expiration of his world. His struggle is defined by the heavy burden of knowledge, as he must overcome not just a physical foe, but the crushing despair of seeing his fellow humans reduced to helplessness.
• Eric Bolton: A brave operative whose identity is defined by his refusal to break under extreme duress. He demonstrates a profound inner resilience, enduring the horrors of an enemy war machine to protect his nation, shifting from a passive observer to a defiant force for resistance.

In Its Own Voice

The alien nature of the adversaries is highlighted during the time-travel sequence:

"A machine was speaking its thoughts!"

The tension of the aerial dogfight is captured by the pilot's internal realization:

"They were free; they were on their way out--out where a new world awaited--where the Dark Moon raced on her unlighted path!"

The desperate, high-stakes nature of the war in The Death-Cloud is emphasized by the enemy's chilling justification for cruelty:

"Necessity knows no law."

What It's Really About

These stories collectively grapple with the fragility of a world built upon the foundations of rapid, unchecked technological progress. The central argument is that while scientific advancement promises connection and efficiency, it simultaneously creates new, terrifying vulnerabilities. The recurring motif of "mysterious rays," "radite-charged torpedos," and "borers" speaks to a specific anxiety: that the same machines that build our skyscrapers and connect our cities can just as easily be repurposed to pull them into the earth or turn the sky into a weapon.

The book explores the tension between the human spirit and the cold, mechanical efficiency of the future. Whether it is the robot in the time-traveling cage or the "green moon" that renders people mindless, the threat is almost always a loss of humanity. These stories suggest that the true measure of a person is not their grasp of the technology, but their moral resilience when that technology turns against them. There is a preoccupation with the idea that the "modern" age is an experiment, and that we are perpetually on the brink of a "Great Last War" or a cataclysmic atmospheric shift that could reset the clock on civilization.

Furthermore, there is a recurring theme of the "outsider" who sees the truth while the rest of society remains in a state of artificial contentment or stupor. Dr. Bird, Bruce Dixon, and Eric Bolton all function as solitary guardians of reality, operating behind the scenes or against the current of public ignorance. The book posits that progress is not a straight line toward perfection, but a jagged, hazardous path where the preservation of the individual’s agency is the ultimate victory. It asks whether we can maintain our humanity as we increasingly rely on the very structures that threaten to replace our natural connection to the world. Ultimately, it suggests that when the world is stripped of its safety, the only things that remain are the stubborn endurance of the individual, the tactical intelligence of the investigator, and the unexpected, often inconvenient pull of personal affection.

Why Read It Today

Reading this collection feels like peering into an attic of a century-old future. You are greeted by a world of "television sets," "air-liners," and "speedsters" that feel both quaint and surprisingly ambitious. The prose is direct and often breathless, designed for readers of a 1930s pulp magazine who wanted high-octane adventure delivered with a sense of urgent, scientific wonder.

Those who love the mechanics of early science fiction will find much to admire here. The authors are not interested in quiet introspection; they are interested in the "how" of the impossible. You will encounter the difficulties of the period—notably in the rigid, occasionally cold characterizations and the stark, black-and-white portrayal of enemies—but these are historical artifacts rather than flaws. The dialect and the attitudes toward women, such as the "trusteeship" of wealth or the role of the damsel-in-distress, reflect the era’s limitations. If you can move past these period attitudes, you are rewarded with a palpable sense of the era’s unbridled optimism and its equally strong, looming dread of a technological apocalypse.

What stays with you is the sheer, kinetic energy of the writing. These are stories that don't wait for you to catch your breath. They move at a blistering pace, throwing you from the deck of a soaring cruiser into the heart of a radioactive, green-lit catastrophe. It is an honest, unvarnished look at how a previous generation imagined their descendants would live, fight, and fall in love. It is a rewarding read for anyone who enjoys seeing the blueprint of modern science fiction being drawn in real-time, with all the rough edges and heroic gestures that come with it. You walk away with a strange, lingering affection for a version of the future that never happened, but which felt, for a few hours, entirely possible.