817.M30, Segmentum Solar, Thranx System
The bridge of the Bucephalus, the Emperor sat in his ready room. While his Custodians guard the entrance.
After so many missions, Aurelian Gaius Trajan was once again deployed on the Bucephalus, where he would once again participate in a battle with the Emperor.
Heavy steps came through like the arrival of the great beast. Horus Luprical, one of the Emperor's sons.
Aurelian turned towards the sound coming, he already knew who he was, but this would be the first time he would meet him.
As Horus came into view, Aurelian felt something in him spark. His knowledge of what is to come, and the duty trained in him since he was a baby to protect the Emperor.
Both of these thoughts gave rise to a reaction even he could not account for.
The air around him became solid. The hand holding his guardian spear went rigid. Around the spear, air began to bend around it, like something was moving it out of the way. His stance shifted ever so slightly.
He stared at the figure as he approached, tightening his grip on his weapon. There is one thing that all can say, a Primarch is still a Primarch. Aurelian could feel it…
The being coming towards him understood he was an attack target, but made no move to retaliate. At least on the surface, his gait got shorter, his steps left prints on the metal flooring.
Aurelian knew if he were to attack at the moment he might injure him, but the only result would be death, and a stain on the name of the ten thousand.
"Your instincts are taut, Trajan, but do not let the hunt cloud the present" Namian said, as he looked upon the stance of one of his oldest war companions.
"I find no fault in your wariness. He is a creature of the blade, through and through"
"It is a rare thing to stand before a living threat that we are forbidden to strike." Aurelian said
"A shared sentiment, It sits ill in the spirit." Beneath his golden helm, Namian wore a grim expression. He too did not like this 'son' of the Emperor.
"It seems my arrival has set the air on edge. My apologies, masters of the Ten Thousand" Horus finally arrived before the custodians with a smile on his face.
He had only arrived after they had finished their conversation. Something the 2 custodians understood.
"No apology is warranted, My Lord. Vigilance is our only state. A lifetime of war has sharpened my reactions, they do not dull easily "
"I know that edge well. It is a companion that never leaves us." he paused " The battlefield is where life is never more vivid than when it is at risk..."
Horus walked into the Emperor's chambers after they had given way for him.
The Emperor was looking at the door with a smile on his face, something that Horus knew not what it was about. He had been called to discuss the war details if there was any need for it.
They took a while with their conversation until Horus left the Emperor's chambers.
"Translation imminent. All hands, prepare for real-space emergence" a communication rang over the ships' vox-network.
The Emperor cast his golden gaze upon the tactical hololith. When the void broke in silence.
Imperial vessels tore into realspace at the edge of the Thranx System, their mass displacing nothing and everything at once.
Warp translation signatures rippled outward like shockwaves through still water, distorting sensor arrays before stabilizing into formation data.
"Translation successful. The fleet has entered the Thranx system" came the first confirmation across command channels.
"All capitals, assume station-keeping."
"Augur arrays activating, initiating passive scans…" As the ships were in the process of organizing themselves before they went to communicate with the locals of the planet…
A voice silenced the bridge with a single word "Contact."
The Thranx fleet was already waiting. By all accounts there should not be a fleet waiting for them, but here they were.
Across the void, hundreds of vessels shifted formation in unison. They moved in file with a precision that could not be entirely human. Forming a hey formed a coherent pattern of interlocking positions, no ship would be caught out alone.
Horus observed in silence as he stood upon the primary command deck, surrounded by officers who did not speak unless required. Data streamed across layered hololithic projections fleet vectors, energy signatures, predictive engagement cones.
"They weren't surprised. Look at that formation, they intend to contest the void itself" Horus said.
A commander turned to Horus and reported "My Lord, the enemy is achieving lock before our translation-wash has even cleared…"
"I see it."
Horus stepped forward slightly.
"Break formation." After a moment of hesitation
"Scatter the groups and confuse their sensors," he said, calm yet final.
The Imperial fleet proceeded with a controlled fragmentation. Where the Thranx had formed a unified line, the Imperium became something harder to predict.
Attack groups split and repositioned, overlapping trajectories that defied simple projection.
The first volley came from the Thranx, macro-cannon fire, energy lances, and guided munitions struck specific Imperial vessels, with precise strikes where structural weaknesses existed.
Void shields came to life as the Imperium weathered the storm. But one vessel buckled as it broke apart before its own return fire completed.
"Confirmed," an officer said tightly.
"They're lead-firing us, using high-level predictive modeling…they are calculating our trajectories faster than the cogitators can cycle."
Horus did not look away from the display.
"Silica Animus…they have chained the machine-mind to their guns." Horus came to the conclusion
"Randomise firing solutions, give them chaos and randomize all firing solutions" he ordered.
"Reconfiguring firing solutions."
The Luna Wolves responded first.
Strike cruisers surged forward in staggered thrust bursts, altering velocity mid-advance in ways that made clean targeting.
Boarding torpedoes launched in overlapping waves, some intercepted, others slipping through micro-gaps in Thranx defense grids.
The VII Legion held formation.
Their vessels advanced under fire without deviation, shields absorbing impacts that would have forced lesser fleets to scatter. They returned fire with discipline, creating pressure zones instead of reactive strikes.
The XVIII Legion pushed into ranges, where predictive models became less effective.
Their weapons fired plasma bursts, melta-based systems, forcing Thranx vessels to either withdraw or accept catastrophic damage.
With balance almost achieved the Thranx changed their tactics.
Imperial vessels that had successfully evaded initial targeting suddenly found themselves caught in intersecting firing arcs.
"Shift to layered engagement," Horus ordered.
"Do not repeat movement patterns beyond three cycles. Force recalculation."
The orders were given and the war escalated almost immediately, ships broke apart on both sides.
An Imperial cruiser advanced half a second too long before it was destroyed. A Thranx vessel overcommitted resulting in it...pierced and broken by return bombardment.
Boarding actions began as Astartes entered enemy ships through fire and vacuum alike, cutting through armored defenders whose movements were guided by invisible calculations.
The Thranx soldiers proved they were strong, but they are not equal to Astartes.
Their armor was multi-layered to withstand heavy punishment, but this in turn affected their movements.
Their targeting efficiency was significantly higher than any other enemy the Imperium had encountered.
Like they had eyes covering all directions
They were indeed strong, but what they stood against was the pinnacle of genetic engineering currently known to man.
Back in the void, the battle shifted again.
"Enemy lances are targeting our command clusters. They're trying to decapitate the fleet," an officer reported.
"They're isolating flagship structures."
Horus smiled faintly.
"Good."
He stepped forward.
"Reassign command nodes"
Horus showed why he was a primarch he changed to match who he was fighting. Adapting to something new without much consideration, and still selecting the optimal decision.
The Thranx tried to reconfigure their attacks once again, but were slow to finish their configurations.
In that time the Imperium offered sustained bombardment on the Thranx ships that served as structural points in their formation. Destroying them did not break the fleet outright, but it forced constant recalculation.
"Enemy vessels withdrawing from forward engagement," came the report.
Horus narrowed his gaze.
"They are repositioning," he said.
The hololithic display updated, they were indeed pulling back, but not in retreat but towards their planetary defenses.
Orbital weapon platforms lit the void. Massive void shield arrays enveloped sections of the planet, creating layered defenses.
Ground-based weapon systems began firing into orbit, their targeting synchronized with the fleet's retreat.
"Combined defense network," an officer said.
Horus nodded once.
"Of course they are."
The realization settled across the command deck without being spoken. This was a system that was unified.
"Status of enemy coordination?" Horus asked.
"Still optimal," came the reply "No degradation despite losses."
That confirmed it, their command structure was still intact.
"Continue pressure. Do not overextend into planetary range without shield analysis."
The fleet slowed its advance, holding the edge of the planetary defences. The war in the void had not been won yet, it had merely evolved into more.
Thranx waiting on the response from the Imperium. Not silently though, data streams expanded outward, revealing the wider system.
With an industrial world with active shipyards, and a military staging area with reinforcement defenses.
The planet was connected like a hive mind
Horus studied the projections in silence.
"This is no longer a compliance matter." no one responded to that
"We are now at war with a system. Prepare for planetary assault."
But the real war had not begun yet.