Caliban lay on the ragged fringe of the Eye of Terror's distant influence, a world of primeval forests and perpetual twilight.
Its surface was smothered beneath vast, lightless woods where ancient trees grew twisted and blackened, their roots burrowing through poisoned soil. Beneath the canopy prowled monstrous predators — warped, malignant, and older than any surviving record.
During Old Night, warp storms had severed Caliban from the wider galaxy. Civilization regressed into feudal fragmentation. Knightly orders rose to defend scattered settlements, wielding relic technologies preserved from a more enlightened age.
Bolt weapons.
Power blades.
Chain-teeth swords.
Plasma charges.
The nobility used these sacred machines of war to defend the common folk from the horrors lurking beyond the torchlight.
Yet even the knights did not know the truth:
the beasts they hunted were not merely animals.
They were the spawn of Chaos corruption.
The Child of the Forest
The First Primarch did not fall among men.
He fell into the forest.
For an unknown span of years, he survived alone within the most tainted regions of Caliban — an environment where even veteran knightly orders dared not linger.
When the Order finally discovered him, he appeared no older than ten Terran years.
He was covered in blood.
Surrounded by the corpses of monsters.
Still breathing.
Many knights demanded the child be slain. No human could survive the deep forests alone. He must be a creature of corruption.
One knight refused.
Luther.
He brought the boy back.
Raised him.
Named him:
Lion El'Jonson
— Lion, Son of the Forest.
The Lion and the Knight
Under Luther's guidance, the boy grew swiftly in strength and intellect.
Yet his nature remained aloof.
Silent.
Watchful.
He understood strategy instinctively.
He understood war as if born to it.
But he did not understand people.
He was a predator given human form.
Luther balanced him.
Where the Lion was austere, Luther was charismatic.
Where the Lion was distant, Luther was approachable.
Where the Lion commanded fear, Luther inspired loyalty.
Together, they unified the Orders of Caliban.
Together, they purged the great beasts.
Together, they forged a fragile peace.
The Lion became Supreme Grand Master.
And the people of Caliban slept without terror for the first time in generations.
The Emperor Watches
The Emperor had known of his son for years.
But he did not intervene.
The beasts of Caliban were Chaos-tainted.
The forest itself was saturated with warp corruption.
The Lion had lived within that taint since infancy.
Even the Emperor could not be certain what influence might linger within him.
But the Rangdan War had changed everything.
Caution could no longer outweigh necessity.
The Sky of Iron
The day the Imperium arrived, the sky vanished.
Warships blotted out the heavens.
Luther ran toward the Lion, breathless.
"From above — the sky is filled with war vessels."
The knights stood ready for annihilation.
Weapons primed.
Shields raised.
Then golden light split the air.
The Emperor and His Custodian Guard stepped from a teleportation flare before the assembled Orders.
The Lion paused.
Then knelt.
One hand over his heart.
"I swear allegiance."
Luther froze.
The knights stared in disbelief.
We were ready to die…
and he surrenders?
The Lion turned slightly.
"He is my father."
Luther blinked.
Then what am I?
The Emperor and his son spoke privately.
No one knew what passed between them.
Given their temperaments, it was unlikely to be sentimental.
But when the Lion emerged, he was no longer merely Caliban's master.
He was the First Primarch of the Imperium.
And he was given his task immediately:
to lead the First Legion into the war against the Rangdan.
Terra — Recovery Chamber
"Heartless old man… miser… Emperor Grandet… cough…"
"Sister, calm down."
Magnus patted Yuki's back as she sat upright in the medicae bed.
"At worst, we can have the First Legion provisioned later."
Yuki shook her head weakly.
"Any other Legion, perhaps. Not the First."
The First Legion was the Emperor's original blade.
Their honors were unmatched.
Their pride absolute.
If their Primarch appeared slighted, they would interpret it not as oversight — but as neglect.
And if they believed the Emperor neglected their lord…
resentment would fester.
Yuki exhaled.
"Magnus. Inform Uncle Malcador to bring Lion's kin who qualify for implantation. I will perform their ascension personally."
The door opened.
Sanguinius entered.
"You are not yet healed, sister."
He pressed her shoulders gently and tucked the blanket around her with careful tenderness.
Magnus blinked.
"Brother, you—"
Sanguinius smiled warmly.
"Our first proper meeting, is it not?"
A spark danced across his fingertips.
"I would like to learn how to wield this power properly."
Magnus brightened instantly.
"You have come to the right teacher—"
Yuki rolled onto her side, listening to Magnus's enthusiastic lecture.
Her thoughts drifted elsewhere.
The Rangdan Question
What exactly were they?
Why did memory erasure fail?
Why could control persist without knowledge?
That was… unjust.
Her gaze shifted toward Magnus.
She still owed him thanks.
Sometimes, she had to admit:
he was reliable.
"Magnus."
"Yes, sister?"
"How did you reach me so quickly?"
Magnus frowned thoughtfully.
"I'm not sure. Warp currents surged. A journey that should have taken months… took nine minutes."
Yuki began coughing violently.
Sanguinius steadied her.
She closed her eyes.
I retract my earlier thought.
The reliable one was not Magnus.
It was… something else.
The Warp: Aftermath
"Tzeentch! Come out!"
The Warp never knew silence.
Where once Tzeentch, Nurgle, and Slaanesh plotted to undermine Khorne…
now Khorne led the assault.
Outside the Crystal Labyrinth, fury gathered.
Tzeentch had no intention of emerging in his true form. Even gods could be injured by coordinated spite.
Instead, he manifested through a lesser daemon.
"What is all this noise?"
Khorne's voice shook reality.
"You stole my prize."
"They were involved too," Tzeentch replied calmly. "Why accuse only me?"
Slaanesh shrieked:
"We agreed Be'lakor would seize her. How did you sabotage this?"
Tzeentch sniffed.
"Magnus acted of his own will. I merely… allowed him to see."
"And accelerated the currents," Nurgle rumbled.
"Coincidence."
Khorne struck.
The manifested daemon exploded into blue fire.
Tzeentch did not care.
They could not truly harm him here.
Inside the Labyrinth, he resumed watching.
"Close the gate," he muttered.
A daemon servant stumbled sleepily to obey.
Tzeentch gazed into reality, eyes blazing with infinite possibilities.
"Yuki… you still owe me many changes."
"Do not die yet."
"That would be terribly boring."
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