(Note: This is my first Warhammer fanfic. I hope you enjoy the story and the journey.)
In the vast expanse of the Milky Way, the Master of Mankind labored upon a project that would one day usher in a new dawn for all of humanity: the creation of his "sons," the Primarchs.
Yet, due to the insidious whispers of Chaos, one of the few individuals the Emperor trusted completely betrayed him.
She sabotaged the Geller field generator and the protective wards surrounding the chamber that housed the gestation pods—the vessels of humanity's salvation.
She was Erda: a fellow Perpetual and longtime companion of the Emperor of Mankind.
Ironically, she was also the one whose genetic material was used alongside his to create the Primarchs. In truth, she was their "mother," just as the Emperor was their "father."
Because of this act, the Ruinous Powers were able to cast the infant Primarchs into the Warp.
However, through the Emperor's intervention, they were not lost entirely, but instead scattered across distant worlds throughout the galaxy.
Erda had done all of this to save her "sons" from being used as mere weapons and tools by the Emperor. It was a decision born of maternal love, yet one twisted into a form that ultimately served the designs of Chaos.
In memory of their shared past and former bond, the Emperor did not kill her—but he did banish her from the fledgling Imperium, turning instead to salvage what remained and prepare the newly forged Space Marine Legions.
Thus began the era of the Great Crusade: not only to unite the fragmented remnants of mankind beneath a single banner, but also to recover the lost Primarchs and reunite with them once more.
Yet, unbeknownst to both the Emperor and even the Chaos Gods, another force had intervened.
A new soul was merged with that of the Second Primarch as he, along with his brothers, traversed the Warp toward their destined home worlds.
None could have known that this singular act would alter the fate of one of the future Lost Primarchs in ways not even the Changer of Ways could foresee—nor the Emperor predict.
Once more, ripples spread across the ever-flowing river of fate.
The being responsible simply observed once his work was complete. He brushed off his hands and cast his gaze beyond space and dimension, toward his unseen accomplice.
"This is all I can do. Now… we wait and watch. And who knows—what we witness may one day become a sight unlike any other."