Just as Magos Valentine began to speculate on what form the Iron Man's compensation would take, a succession of colossal, blinding flashes erupted across the desolate barrens some distance away.
Crack-crackle!
Arclight energy crackled erratically across the clearing, sending sharp, booming reports tearing through the atmosphere. The violent display successfully diverted Axion's attention away from a nearby contingent of Kataphron Battle Servitor.
"%@#&*! How dare they! This is a flagrant violation of tech-dogma! I shall report this directly to the Inquisition!"
Witnessing the monumental glare, Magos Valentine abruptly flew into a furious, frantic rage. His harsh, binary cursing caused Axion to turn his head and regard him. The Iron Man's processing matrices flagged the Tech-Priest's sudden emotional volatility as entirely irrational.
As the blinding luminescence receded, a series of towering silhouettes manifested on the periphery of this industrial hive city. Though the monumental figures loomed well outside the perimeter walls, they remained clearly visible from within the hive.
They were the God-Machines of the Legio Astorum, the Warp Runners Titan Legion, garrisoned upon Lucius.
The remaining shimmering remnants of teleportation discharge gradually flickered out. From the supreme Imperator-class Titans down to the agile Warhound-class Scout Titans, war engines of every classification had been displaced directly onto the planet's surface.
Within the hive, countless mortals were instantly paralyzed by sheer terror. However, as their eyes locked onto the prominent heraldry of the Warp Runners emblazoned upon the armored plating, the initial fear dissolved into widespread pandemonium.
Even as lifelong inhabitants of Lucius, the vast majority of ordinary serfs never caught a single glimpse of a God-Machine in their lifetimes, and the select few who had survived such encounters were rarer still. Yet, a lack of personal familiarity did not mean they failed to grasp what the deployment of the God-Machines portended.
"Who is invading us?!"
"What is the enemy? A daemonic host? Traitors to the Imperium? Or those thrice-damned xenos?!"
"I don't want to die here!"
"Hand me a weapon! I will fight!"
The abrupt planetfall of the Titan Legion plunged the Forge World itself into a state of structural chaos.
Inside the command bridge of an Imperator Titan, the Princeps sat entombed within his amniotic control cradle, a labyrinth of neural conduits jacked directly into his flesh. Even as he fought to placate the raging, bellicose machine spirit of the Great Engine, he snapped his gaze toward the Mechanicus tech-priest flickering on the cockpit's vox-screen.
"Tech-Priest Fathor, do you comprehend the catastrophic scale of the transgression you have committed? You had best pray to the Omnissiah that you can justify this madness to your Archmagos when the reckoning comes."
"Princeps Warren, I am acutely aware of the protocols," Fathor voxed back, his tone smooth and unperturbed. "However, provided the strategic dividend is sufficiently vast, I am confident the Archmagos will absolutely forgive this departure from dogma. Furthermore, now that the Iron Man has successfully restored the critical components of the artificial sun's core, I foresee no variables occurring simply because you temporarily abandoned your post at the maintenance conduit vault."
Unlike the other Titans that had been teleported directly from the maintenance bay, this particular Imperator Titan was maintained in a state of perpetual activation. Its eternal vigil was to guard the primary subterranean maintenance passage leading from the surface of Lucius to its hollow, artificial core.
However, when the Iron Man had commenced his repairs on the artificial sun, he had bypassed the conventional access shafts entirely. Instead, his mechanical cohorts had descended directly along the structural framework of the world, entering the containment apparatus of the artificial sun itself. The ambient, leaking thermal radiation was intense enough to reduce a biological entity to a desiccated corpse within seconds, but to the metallic chassis of the Sapient Machine Automata and the Eight-Legs, it presented no obstacle whatsoever.
When Axion first made planetfall, he had been received by a delegation of tech-priests from the Titan Order, and Fathor had been among them. Fathor's mentor happened to be the Chief Magos of the Lucius Mechanicus, a prominent member of the Titan Order and a high-ranking technical commander of the Warp Runners Titan Legion.
The moment Axion was escorted away from their presence by Magos Valentine, Fathor had quietly dispatched several servo-skulls along alternate structural conduits, routing them directly toward the plaza where the assembly was gathering. These servo-skulls had subsequently broadcasted every minute detail of the exchange between Axion and Valentine's faction back to him. Fathor had even managed to covertly scribe a copy of the semi-intelligent core schematics surrendered by the Iron Man.
Following a brief series of computational verifications, Fathor had been gripped by a feverish, fanatical zeal. Utilizing his encrypted vox-network, he contacted every high-ranking officer within the local Titan Order, displaying the plaza recordings to those who had been absent or occupied with other duties.
Valentine and his cohorts had remained blissfully oblivious to the data collection, failing to perceive any anomaly in the ubiquitous presence of the servo-skulls. To a Magos or a Tech-Priest, having one or two floating servo-skulls hovering in their immediate periphery was entirely commonplace. Furthermore, with so many Skitarii and auxiliary cohorts milling about the plaza, the airspace was practically teeming with them.
Rallied by the technical priesthood, the Princeps of the Warp Runners currently on shift rotation had been systematically pressured into boarding their respective war engines to actively display the capabilities of the God-Machines. Yet, just as they commanded their Titans to stride clear of the maintenance bay, the tech-priests had witnessed Axion requesting the manufacturing schematics for the Ironstrider walker, promising a technological exchange of equal worth.
This revelation shattered all remaining hesitation among the Titan tech-priests. If the Iron Man was bartering for tech, they needed to showcase their most definitive, proprietary advancements to captivate him, ensuring they maximized their own faction's profit.
While a Titan was undeniably a pinnacle of technological sophistication, Lucius was far from the only Forge World capable of constructing them. The Warp Runners, however, possessed a doctrine uniquely their own.
The natural impetuousness inherent to the culture of Lucius meant that their Titans operated in a highly distinctive manner on the battlefield. The vast majority of Titan Legions preferred a measured, deliberate, and unyielding advance during campaigns. On one hand, this sustained the longevity of the war engine's structural integrity, placing far less strain on the plasma reactor and ensuring stable operation. On the other hand, across the battlefields of the galaxy, very few adversaries could match a God-Machine in terms of endurance, resolve, or overall speed; a Titan could march indefinitely at a respectable, tireless velocity.
However, such deliberate battlefield pacing was anathema to the Princeps of the Warp Runners. They were culturally predisposed to set their own tempo, and to a native of Lucius, faster was invariably better.
Consequently, the Magi of Lucius had implemented several highly volatile, experimental modifications to overclock the locomotive assemblies of the Warp Runners' God-Machines. Despite a historical record marred by catastrophic structural failures, the systemic results had proven remarkably successful.
Coupled with rigorous, multi-generational training regimens imposed upon the Princeps and their dynamic bloodlines, the maneuverability and operational velocity of the Warp Runners' Titans had achieved unprecedented heights, shattering the traditional performance envelopes governing Titan deployment. When operating in a full running gait, these massive engines could devour a kilometer of terrain in a matter of strides, a high-speed posture the Warp Runners' Princeps proudly referred to as the War March.
In fact, most Warp Runners Princeps viewed the violent protests of a machine spirit operating on the absolute brink of reactor criticality not as a fatal warning, but as a challenge to be mastered, a challenge to be treated with deep, ritualistic respect. Through relentless training, they had mastered the art. Many cunning, veteran Princeps had codified specific methodologies to force the machine spirit to sustain operational parameters even while its systems teetered on the razor-edge of systemic collapse.
It was precisely this dangerous doctrine of pushing the God-Machines to the bleeding edge of structural tolerance that birthed the Warp Runners' legendary combat methodology: execution of Titan-level blitzkrieg operations characterized by high-speed, mobile maneuver warfare that few other Titan Legions could ever hope to replicate.
Yet, despite this formidable prowess, the most guarded and priceless secret of the Legio Astorum did not lie within their mechanical locomotive overhauls, but rather within their far more staggering mastery of Titan-scale teleportation technology. They stood alone across the entire Imperium as the solitary Titan Legion to possess the capability to teleport operational Titans directly into combat.
The moment Axion's sensors registered the sudden materialization of these colossal mechanized entities out of empty space, his subsequent actions perfectly mirrored the calculations of the Titan Order priests.
Without a shred of hesitation, the Iron Man abandoned his unexamined objectives, pivoting instantly to accelerate toward the outer perimeter of the hive city.
Meanwhile, Fathor and his tech-priest conspirators were already hurrying out to assemble beneath the looming shadows of the God-Machines.