idea: a morbid tale about a human genetic mutation resulting in black bones. it was discovered during an autopsy after the unexpected death of a healthy person. it is raised questions about how many other people has the mutation. the result is a dystopian nightmare where humans do typical terrible things to other humans because of the emerging black bone market

The Obsidian Trade

The autopsy room smelled of formalin and stale dread. Dr. Alistair Finch, a man whose face seemed carved from perpetual fatigue, ran a gloved hand over the abdomen of the deceased. It was Marcus Thorne, a man who had died suddenly of acute cardiac failure—a perfectly healthy body that offered no clue to the horror residing within.

But beneath the familiar architecture of flesh and sinew, Alistair found the impossible. The bones were not ivory or calcium; they were obsidian. Smooth, dense, jet-black structures replacing the familiar white architecture of the skeleton. It was a mutation, an unthinkable biological error that defied every law of nature. Thorne’s internal structure was wrought of polished night.

Alistair felt a cold dread settle in his gut. The discovery was immediately sealed, whispered only within the sterile confines of the morgue. How many other people carried this dark inheritance? Was it a plague, or a secret lottery?

The initial panic quickly curdled into a colder, more predatory realization as news of the mutation leaked out, distorted and sensationalized by the media. The label stuck, inevitably, was ‘Obsidian Kin.’ It was not merely a genetic anomaly; it became a commodity.

Within months, the world fractured around this singular biological reality. The black bones were deemed uniquely dense, incredibly strong, and possessed an unknown metaphysical property—a factor that fueled a terrifying new market: the Obsidian Trade.

The initial fascination quickly devolved into pure, primal exploitation. Those with the mutation were not granted civil rights; they were classified as assets, breeding stock, or, most disturbingly, chattel. The black bone became the ultimate currency of power, traded on illicit markets where purity of lineage and physical anomaly dictated price.

Dystopia was not a slow creep here; it was a sudden, violent infection.

The wealthy elite, recognizing the terrifying potential hidden in the Obsidian Kin’s unique biology, established shadow syndicates. They sought to own those with black bones, not for their genetic purity, but for the raw, unnerving uniqueness they represented. The demand escalated rapidly from simple ownership to ritualistic violence.

It began subtly: forced conscription, then systematic theft of labor. But soon, desperation morphed into atrocity. Because the obsidian structure was rumored to grant an unnatural resilience, those with it were seen as perfect instruments—unbreakable servants, silent enforcers, and living weapons.

The black bone market became a perverse ecosystem of brutality. A man like Silas, who possessed one of the rare mutations, found himself trapped in a world where his very existence was leveraged against him. He watched as those with pale, ordinary bones were systematically hunted down, their lives reduced to scraps for the Obsidian Kin’s luxury, or worse.

Silas remembered the night he witnessed it—a scene so visceral it burned itself into his soul. It involved the systematic dismantling of a family not for food, but for the exchange of bodies and bones. The obsidian kin were used as living siege engines, their unnatural strength deployed in acts of unimaginable cruelty against the baseline human population.

The fear became internalized. Those who possessed black bones learned that their survival hinged entirely on their ability to inflict or endure suffering. Compassion was a fatal flaw; empathy led only to extinction. They were forced to choose sides: those who became the hunters, seizing power through brutal domination, and those who became the hunted, reduced to chattel in a world defined by genetic horror.

The market demanded perfection, and cruelty provided it. The black bones no longer signaled a medical oddity; they marked the deepest pit of human depravity, transforming the simple act of living into a perpetual, agonizing performance for the dark desires of those who held the power to buy and sell humanity’s darkest secret. And as the sun rose over this fractured world, casting long shadows across stained concrete streets, the sound of inevitable violence was the only constant melody.