Chaos Legion Attacks!

"Th-that thing is a primarch?"

The Chief Librarian muttered in a daze, utterly unable to comprehend what he was seeing.

This was completely different from every prophecy he had made over the past ten thousand years about the primarch's return!

Could this wild, domineering figure radiating absolute power truly be their gene-father, renowned for his wisdom, reason, and mastery of rule?

"Chief Librarian?"

Calgar noticed something was wrong with him, and his heart jolted when he saw a tear slip from the corner of the old warrior's eye.

How could this veteran, who had endured eight centuries of hardship and witnessed countless sacrifices and despair, shed tears at a moment like this?

"What did you see? Could it be that the primarch..."

Calgar abruptly turned toward Guilliman's blurred face within the stasis field, a sense of foreboding rising within him.

And it was precisely in that moment of turmoil, when his attention was diverted—

BOOM!!!

Amid an ear-splitting explosion, a Thunderhawk Gunship painted with the Chaos Eight-Pointed Star brutally smashed through the dome of the Macragge Sanctum, sending rubble raining down!

The hatch burst open, and elite Chaos Space Marines clad in black armor bearing the legacy of the Luna Wolves and the signature dark blue armor of the Night Lords crashed to the ground like hailstones of death!

"ENEMY ATTACK!!!"

Calgar's furious roar instantly drowned out every other sound. "How dare you! How dare you defile Macragge! How dare you set foot in the sanctum where the primarch rests!"

Rage instantly consumed his hesitation and struggle.

Calgar's power fists roared to life as he charged into the enemy ranks like a blue whirlwind.

With one punch, he smashed the head and helmet of a Chaos warrior who had just landed into fragments!

The sanctum and its surroundings instantly descended into utter chaos. More Chaos warships appeared above Macragge, and fierce battles erupted on every front.

Amalrich, Marshal of the Black Templars, roared as he drew the Black Sword passed down from Sigismund.

The Grey Knights' Grand Master crackled with psychic lightning, while the Living Saint Celestine flew through the air, wielding a longsword wreathed in sacred flames.

The Imperium's greatest warriors had gathered here, locked in a desperate slaughter with the surging Chaos traitors.

Yet the number of Chaos warriors far exceeded expectations. Many were fanatics blessed by Khorne, and their reckless charges, heedless of casualties, placed enormous pressure on the defenses.

Seizing the chance, the Chief Librarian, Yvraine, and Belisarius Cawl exchanged resolute looks.

"Now! This is our only chance!" the Chief Librarian rasped.

There was no time left to argue!

Cawl's mechanical tendrils operated at maximum efficiency, removing the components of the Fate Armor from their storage case and aiming them at Guilliman's body.

Yvraine tightly gripped the Cronesword, the power of Ynnead's death god lingering around its blade.

"No! Stop at once! Librarian! I order you to stop in my capacity as Chapter Master!"

In the midst of the melee, Calgar caught sight of this and let out a heart-wrenching roar, his eyes nearly splitting as he desperately tried to force his way back to the primarch.

But the tide of enemies blocked his path.

The Chief Librarian gave the fighting Chapter Master one last look, his gaze complicated yet utterly firm.

"I'm sorry, Calgar... but for the Imperium, for the primarch, we must seize this one chance!"

With that, he decisively shut down the stasis field that had kept Guilliman's body incorrupt for ten thousand years!

Yvraine did not hesitate in the slightest.

The instant that mighty body was exposed to the air, the Cronesword, infused with the divine power of Ynnead, stabbed swiftly and precisely into Guilliman's neck!

At almost the same moment, the mechanical arms controlled by Belisarius Cawl—

Covered, connected, and locked the azure components of the Fate Armor onto the primarch's body at a dazzling speed!

Calgar let out a desperate, anguished roar.

He could only vent his boundless fury upon the Chaos traitors around him, as though he wished to grind every inch of their flesh and blood into dust!

At the final moment the armor sealed shut, a mutation began.

Just as Yvraine's sword, imbued with the power of the death god, was about to pierce Guilliman's neck completely and complete the "death-resurrection" ritual—

CLANG—!

An incredibly sharp, deafening clash of metal erupted!

The Cronesword, that divine weapon meant to sever the boundary between matter and soul—

Seemed to have struck not flesh and blood, but an indestructible wall of Vibranium. It was violently deflected by an invisible, immense force!

The blade shuddered violently, letting out an unwilling hum.

Yvraine stared in shock at her numbed hand, then at the deflected Cronesword, her beautiful face filled with disbelief.

How... how could this be?

This was a holy sword that had inherited the power of Ynnead, the death god. Before it, all things in the world, whether material or spiritual, should have been as fragile as thin paper.

Even an Imperial primarch of legend, a demigod created by the human Emperor, could never possibly withstand the power of a true god with mere flesh!

Yet the truth lay before her eyes.

The sword's edge had left only a shallow streak of blood on Roboute Guilliman's neck.

Even more shocking, the wound was healing at a speed visible to the naked eye. In the blink of an eye, it had fully recovered, without leaving even the faintest mark!

At the same time, Guilliman's entire presence underwent an earth-shaking transformation!

Within his body, the Smart Atoms originating from Thragg, the Regent of Vitruum, were fusing with the primarch's perfect body at an unprecedented speed.

This was a fusion of bloodlines beyond mortal comprehension!

The Viltrumites, a powerful race that had risen amid the chaos of interstellar warfare, possessed terrifying individual strength.

Had they not been constrained by their planet's harsh system, they would likely have conquered the stars long ago.

The Smart Atoms flowing through their bodies were the source of all their superhuman abilities.

These invisible particles supplied energy and mass to their bodies as needed.

They granted strength capable of tearing apart warships, bodies of steel that could withstand artillery fire, and even enhanced their eyes with extreme long-range vision.

So long as the brain and heart remained intact, even the gravest injuries could be rapidly healed by Smart Atoms. Even when breeding across species, they could stabilize genes and allow descendants to inherit those abilities.

Whether it was the freezing cold of the void or the scorching heat near a star, Smart Atoms would gradually adapt the body, allowing them to travel through the stars without protection.

They even responded to emotional fluctuations—when a Viltrumite was ignited by rage, atomic activity would surge, and their combat power would break past its limits.

And Guilliman, one of the Emperor's most outstanding creations, possessed genetic stability and potential that could only be called perfect.

At this moment, these two supreme bloodlines—

The strongest Regent of Vitruum, forged from mountains of corpses and seas of blood, and the Thirteenth Primarch created by the Emperor, humanity's demigod—

Were undergoing an unprecedented fusion!