In the grim darkness of the far future, the Imperium of Man teeters eternally on the precipice of annihilation. Yet, amid the solemnity of duty and the weight of unending war, there exists a story so absurd, so ridiculous, that even the Inquisition hesitates to speak of it. Buried in the most obscure vaults of the Officio Assassinorum, concealed under layers of redaction and plausible deniability, is the true origin of the Culexus Assassins. It is not a tale of calculated science or divine inspiration, but a sequence of improbable events culminating in one of the strangest unions in the galaxy's history.

It begins, as such tales often do, with a war.

Quann'Rath was a desolate planet, little more than a forgotten speck in the Segmentum Obscurus. Its obscurity ended when the forces of Chaos descended upon it, warping the planet into a den of excess and debauchery under the malign influence of a Daemon Prince of Slaanesh. Sybarrus, the Prince in question, had manifested fully in the material realm, feeding on the despair and hedonistic fervor of the enslaved populace. This manifestation was anchored to the planet by a massive warp gate—a construct so powerful that no amount of orbital bombardment could close it.

The Imperium responded as it always did: with overwhelming force and grim determination. Regiments of the Astra Militarum, contingents of Space Marines, and countless mechanized divisions descended upon Quann'Rath, but their efforts were stymied. The warp gate reinforced Sybarrus's power, allowing it to twist reality itself, making conventional tactics useless. Only a precision strike could sever the gate's connection and banish the Daemon Prince.

To this end, the Ordo Hereticus devised a desperate plan: send in an elite duo to infiltrate the warp gate and destroy it from within. The team would consist of Sister Miriya Ven-Kallus, a pariah of the Sisters of Silence whose null-field could destabilize the warp gate's psychic foundation, and Eversor Operative Delta-77, a chemically enhanced assassin capable of extreme violence and adaptability.

The partnership was ill-conceived from the start. Sister Miriya was a woman of unyielding discipline, her very presence exuding a cold, oppressive aura that suffocated psykers and unsettled even ordinary mortals. Her devotion to the Emperor and her vow of silence left no room for personal connections or frivolities. She viewed emotions as weaknesses and chaos as something to be eradicated with precision and calm.

Delta-77, on the other hand, was the very embodiment of chaos. Known as Scalpel among his temple's ranks, he was a hurricane of violence, his every movement powered by a cocktail of combat drugs and genetic enhancements. While he spoke rarely, his actions were loud, erratic, and often excessive. Where Miriya sought order, Scalpel thrived on destruction.

Their first encounter was predictably tense. Miriya found Scalpel's constant fidgeting and chemically induced jitters intolerable, while Scalpel found Miriya's null-field unnerving and her stoicism maddening. Still, they were professionals, and they carried out their mission with grim efficiency—at least until everything went wrong.

The infiltration began well enough. Using a combination of stealth and brute force, Miriya and Scalpel penetrated the outer defenses of the warp gate. Their teamwork, though grudging, was effective; Miriya's null-field disrupted the warp-spawned guardians, while Scalpel's hyper-aggressive combat style cleared their path.

But as they reached the heart of the gate, Scalpel—perhaps overzealous, perhaps just bored—detonated a cache of warp-charged explosives prematurely. The resulting explosion tore a hole in reality, trapping them in a pocket of unstable warp-space.

For three long weeks, the pair fought to survive in the nightmare realm. Time flowed erratically; moments stretched into days, and days vanished in the blink of an eye. The air was thick with whispers of temptation, and the landscape shifted constantly, a kaleidoscope of impossible geometries and flesh-warping horrors.

Miriya's pariah aura provided some protection, her presence repelling the warp's more insidious influences. Scalpel's combat stims and enhancements kept him alive, though at the cost of his already tenuous grip on sanity. They were forced to rely on each other in ways neither had anticipated. Miriya's tactical mind and unshakeable focus balanced Scalpel's raw ferocity and adaptability. Slowly, a grudging respect began to form, though neither would have admitted it.

When they finally escaped the warp pocket and destroyed the gate, they were battered, exhausted, and deeply scarred. With their mission complete, they awaited extraction on the barren plains of Quann'Rath, their bodies and minds barely holding together.

As they sat in silence under the cold, unfeeling stars, Scalpel—ever the disruptor—produced a vial of combat stim from his belt. He held it up with a smirk, miming a toast. Miriya, perhaps influenced by lingering warp fatigue, perhaps simply too tired to argue, responded by pulling out a flask of purified null serum. What began as a silent, awkward gesture of mutual respect spiraled into something far less dignified.

The combination of Scalpel's stims and Miriya's null serum created a potent, mind-altering concoction that neither of them had anticipated. Barriers were lowered, discipline dissolved, and for one reckless, incomprehensible night, the stoic pariah and the chemically charged assassin gave in to impulses they didn't fully understand.

When Miriya discovered she was pregnant months later, she was horrified. The Sisters of Silence, renowned for their pariah genetics, were believed to be incapable of bearing children. Yet here she was, carrying a child conceived under circumstances so improbable that it bordered on heresy.

The child was unlike anything the Imperium had ever seen. Its aura was a black hole, an absence of soul so profound that even Miriya's null-field paled in comparison. Psykers within miles of the child suffered debilitating headaches and visions of emptiness. Even non-psychic humans felt uneasy in its presence, as if their very essence was being drained.

The Sisters of Silence, unable to reconcile the child's existence with their strict doctrines, turned the matter over to the Ordo Assassinorum. The Officio's Magos Biologis were ecstatic. They saw in the child the potential for a new kind of weapon—a being capable of annihilating psykers and unraveling the warp's influence with a mere presence.

The child was taken to the Officio's secret laboratories, where it was subjected to rigorous experimentation and training. Its genetic code, a unique fusion of pariah-null traits and Eversor enhancements, was refined and weaponized. The result was the first Culexus Assassin, a soulless terror whose very existence was anathema to psykers and warp entities alike.

The truth of the Culexus program's origins was buried deep, known only to a select few. Official records attributed the assassins to divine inspiration from the Emperor, their origins shrouded in holy mystery. But whispers persisted. Among the Eversor Temple, Delta-77 became something of a legend. His exploits were embellished in increasingly absurd ways, with tales of him seducing a pariah becoming a favorite barracks joke. Scalpel himself, true to his nature, dismissed the rumors with a shrug and a smirk, claiming he remembered nothing of the incident.

Miriya returned to the Sisters of Silence, her lapse in discipline a secret she carried to her grave. Her stoic demeanor never wavered, though some claimed to see a glimmer of regret—or perhaps pride—in her otherwise implacable expression.

The galaxy moved on, as it always does, but the absurdity of that one night under the stars lingered in the shadows of history. Somewhere, in the quiet moments between battles, even the Emperor Himself might allow a faint, knowing smile at the thought of His deadliest tools fumbling their way into creating one of the Imperium's greatest weapons. For in the grim darkness of the far future, even the most solemn of institutions are not immune to the whims of chance—and a little cosmic irony.


I once came across a joke on YouTube about how a Culexus Assassin might be the result of a one-night stand between a Sister of Silence and an Eversor Assassin. The idea stuck with me, and I couldn't resist turning it into a story.

This story is meant to be flexible and, most importantly, fun. If you have any funny or creative ideas to contribute, please don't hesitate to share them in the reviews.

That's all for now! I truly hope you enjoy the story, and I wish you a wonderful day or night wherever you are. Take care and stay healthy.