Emperor: "The Lion is useful. Do not reward him publicly. Transfer the Icarus Protocol to the First Legion through sealed channels."
Yuki: "Father, one day I really will hang you from the Astronomican."
Emperor: "?"
The relationship between Mars and Terra was not unlike that of rival gods forced into alliance.
Outwardly: unity, reverence, mutual necessity.
Beneath the surface: suspicion, calculation, quiet hostility.
Each side waited for the other to overreach.
Each side prepared for that day.
The Mechanicum's Resentments
The Priesthood of Mars chafed under Imperial restrictions.
The Omnissiah's faithful were forbidden from pursuing Abominable Intelligence.
Xenos technologies were often destroyed rather than studied.
Archaeotech was seized, quarantined, or weaponized under Imperial authority.
To the Mechanicum, this bordered on sacrilege.
To the Imperium, it was survival.
More troubling still was the political balance. The Treaty of Olympus had been signed as an agreement between equals — the Emperor and the Fabricator-General.
On parchment, Mars remained sovereign.
In reality, the Imperium now spanned the stars.
Equality had become… theoretical.
No formal annexation had occurred.
But the possibility haunted the noosphere.
Quietly, certain forge worlds began developing contingency arsenals — weapons designed not for xenos… but for Terra.
The Imperium's Distrust
Imperial commanders had their own grievances.
The Mechanicum prioritized relic recovery over battlefield pragmatism.
Expeditions had been delayed.
Assaults rerouted.
Entire campaigns risked to recover fragments of lost technology.
To the Martian priesthood, knowledge was sacred.
To soldiers dying in the mud, it felt like madness.
More than once, Mechanicum adepts had openly questioned Imperial authority.
More than once, Terra had noticed.
Yet neither side could sever the alliance.
The Imperium required Mars:
starship construction
• plasma reactors
• Titan Legions
• technological continuity
Mars required the Imperium:
protection
• reconquest fleets
• access to lost STC worlds
To Yuki, the relationship resembled a body and its arm:
You could survive without it.
But you would never willingly cut it off.
Not all forge worlds were obedient.
Some Tech-guilds had grown increasingly defiant.
Some delayed compliance.
Some ignored Imperial decrees.
A few… had rebelled outright.
The Imperium could not publicly suppress them.
Mars could not be seen to lose control.
Thus was born a solution that could never be acknowledged.
The Icarus Protocol
Officially: nonexistent.
Legally: deniable.
Strategically: indispensable.
Under the Protocol:
a designated Legion could retain restricted Dark Age weaponry
• said Legion could operate beyond Treaty limitations
• rebellious forge worlds could be neutralized quietly
• technological assets could be secured without political fallout
No proclamations.
No banners.
No records.
Only compliance.
Only silence.
Only the First Legion possessed the discipline, secrecy, and ruthlessness required.
Yuki raised her hand immediately.
"My Rising Sun Angels can perform covert suppression."
The Emperor did not look up.
"You do not possess sufficient strength to fill operational gaps."
"…."
She already knew.
Only the First Legion could bear that burden.
But the Emperor's method still infuriated her.
The Unrewarded War
After the Rangdan catastrophe, an awards ceremony should have followed.
Every Legion had bled.
Every Legion had suffered.
Instead:
records were erased
memories were purged
the war never officially occurred
Public commendations were impossible.
The Ultramarines accepted losses as cost of order.
The Space Wolves cared nothing for laurels.
The Dark Angels, however, had lost heavily — and reputation mattered to them.
Now they labored in silence, ghosts of an unrecorded war.
Resentment simmered beneath their discipline.
Yuki proposed a solution:
If Rangdan could not be named, then another foe could.
A fictitious xenos threat.
A documented victory.
Recognition without truth.
The Emperor approved.
But his "reward" for the First Legion remained… utilitarian.
The Icarus Protocol.
Yuki nearly exploded.
"That is not a reward. That is homework."
She dragged the conversation back on course.
Reward is reward. Duty is duty.
They must never be confused.
"Perturabo?" the Emperor asked once matters were settled.
Yuki paused.
"I know what I am doing."
"Very well."
He did not interfere.
He never intended to.
But when Yuki chose to intervene, he allowed it.
Perturabo's New Resentment
Perturabo had rarely been happy.
But he had never been humiliated before.
Certainly not by a metal bucket.
After completing the Iron Blood, he joined the Great Crusade front and was greeted warmly by his brothers. On a newly pacified compliance world, Horus gathered several Primarchs for drink and celebration.
Perturabo concluded he was popular.
He did not care.
But hospitality deserved response.
He drank.
Then he noticed the alcohol was unusually strong.
He returned to his command pavilion and slept.
He awoke to darkness.
Something enclosed his head.
Iron.
Sealed.
He could not immediately tear it free.
Fists struck him from several angles.
Not lethal blows.
Measured.
Painful.
By the time he ripped the barrel apart, his attackers had vanished.
A Primarch had been ambushed inside his own encampment.
That required:
bypassing Astartes patrols
• exceptional coordination
• Primarch-level strength
One name surfaced immediately.
Dorn.
"I did not strike you," Rogal Dorn stated.
Perturabo sneered. "Then who?"
"I do not know."
Dorn spoke truth.
Perturabo did not believe him.
In reality, the incident began elsewhere.
Alpha had quietly allowed certain Primarchs to learn of Perturabo's confrontation with Yuki.
Some remained silent.
Some judged.
Ferrus had sparred with Yuki — a measured contest.
Perturabo had attempted to injure her.
That crossed a line.
Horus assembled a solution.
Teach him a lesson.
Without humiliation.
Without witnesses.
Without escalation.
Ferrus forged the container.
Fulgrim supplied the pretext.
Horus supplied the logistics.
Sanguinius supplied overwatch.
And discretion.
Always discretion.
Horus later regretted it.
They were brothers.
They could have spoken.
But when Perturabo accused Dorn…
things worsened.
"Horus held him back.
"Brother, it was me. I struck you. I apologize. Dorn is not involved."
Perturabo glanced at Dorn's impassive face.
"You excuse him."
"It truly was me!"
"It was not me," Dorn repeated.
Perturabo's eyes narrowed.
"There was another."
Silence.
"Rogal Dorn."
Nearby, Sanguinius sipped tea serenely.
Fulgrim shifted uneasily.
"Horus has confessed. Should we not apologize?"
Sanguinius smiled.
"Let his anger cool first."
Fulgrim looked toward Perturabo's simmering fury.
That might take some time.
He nodded anyway.
Sanguinius continued smiling.
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