Inquisitorial Report On Mercy Cain

Prepared by: Inquisitor Tarmis Hekarion
Subject: Discovery of "Mercy" – Half-Human, Half-Eldar Hybrid, Progeny of Ciaphas Cain
Classification: Extreme Heretical Threat – Omega Priority

My Lords of the Ordo Hereticus,

It is with trembling hands and a heart weighted by despair that I submit this report. What I have uncovered defies all logic, all reason, and all the sacred doctrines that bind the Imperium together. The subject of this investigation—an entity known only as Mercy—is a revelation so abhorrent that its very existence threatens to unravel the faith of even the most steadfast servants of the Emperor.

I have confirmed that Mercy is the offspring of Ciaphas Cain—the Black Commissar, a notorious apostate and ruler of the chaos-drenched planet of Slawkenberg. Once thought to be a minor heretic, Cain's true nature has been laid bare: he is a champion of the Dark Prince, a willing participant in acts of unspeakable depravity. His legacy, however, is far worse than we imagined, for Mercy is not merely his child but an abomination born of both human and xenos blood.

Mercy's mother, Throne have mercy on me for uttering these words, is not of the Craftworld Eldar as once suspected but a Drukhari of Commorragh. She was no hapless victim but a willing participant in her own corruption—a creature whose devotion to torment and excess was perfectly aligned with the desires of the Dark Prince. This wretched union was not one of happenstance but a deliberate act of ritual debasement, a celebration of Chaos's power to defile even the unholy purity of the Drukhari.

The child they created—this half-human, half-Drukhari hybrid—is no mere biological anomaly. She is a living hymn to Slaanesh, a nexus of beauty, agony, and ecstasy that transcends mortal comprehension. Witnesses describe her as both angelic and monstrous, her presence drawing mortals and xenos alike into her thrall. To gaze upon her is to be undone; to hear her laughter is to surrender. Entire populations on Slawkenberg have succumbed to mindless worship, their bodies mutilated in acts of frenzied devotion.

The implications of this discovery are as horrifying as they are profound. A child born of human and Drukhari blood should not exist—it is an affront to all natural laws. Yet here she stands, proof that Chaos can shatter the boundaries of species and reshape creation itself. What does this mean for humanity? For the Eldar? For the fragile order we cling to in the face of oblivion?

This revelation cuts deeper still. The Drukhari, whose culture thrives on the rejection of Chaos, have long been a bitter irony within the Immaterium. They flee from She Who Thirsts even as they sustain her through their endless atrocities. Now, with one of their own willingly offering herself to the Dark Prince, a new precedent has been set. The notion that Commorragh itself might one day fall to Slaanesh's embrace is no longer unthinkable.

And what of Cain? The traitor. The heretic. The monster. His role in this unholy act must not be underestimated. His charisma and cunning have allowed him to consolidate power on Slawkenberg, where the cult of Mercy grows unchecked. He is a willing architect of Chaos, a man who has traded the honor of the Emperor's service for the adoration of a daemonic progeny. His death is non-negotiable; the eradication of Slawkenberg must be pursued with the utmost zeal.

But even if we annihilate him, and her, and every trace of their existence, the damage is done. Mercy is no mere child—she is a symbol, a prophecy of Slaanesh's growing dominance. Her presence is a taunt to humanity, a promise that Chaos can create beauty from our nightmares, joy from our suffering. Her laughter echoes through the Warp, carried on the currents of the Dark Prince's jubilation.

The Eldar, both Craftworld and Drukhari, will surely feel the weight of this atrocity. They know what Mercy represents: a breach in the dam, a sign that no soul is safe from Slaanesh's grasp.

And I? I cannot unsee what I have discovered. My dreams are plagued by her image, her laughter, her promise of annihilation. She is more than a threat; she is the end of everything we hold sacred.

May the Emperor's light guide us, though I fear even His divine radiance will falter in the shadow of what is to come.

Inquisitor Tarmis Hekarion