Premise
A newly discovered Archaic Artifact—a relic forged in the Dawn of Time—has been unearthed beneath a chain of cathedrals dedicated to the God‑Emperor. Its latent power can heal tears in the Webway, sealing the growing rifts that threaten both realspace and the Immaterium.
Because the artifact sits at a strategic juncture of the Great Rift, all major factions scramble to claim, protect, or destroy it.
The Dawn Beneath Saint Cyriacus
The night sky over the frontier world of Vespera‑9 was a tapestry of violet clouds and distant, cold stars. The planet’s surface—a patchwork of basalt cliffs, wind‑scoured plains, and crumbling stone—had long been a quiet outpost of the Imperium, a place where the faithful tended the shrines of the God‑Emperor and the local militia kept the occasional Ork raider at bay.
For centuries the Cathedral of Saint Cyriacus had stood at the heart of the settlement, its spires rising like prayerful fingers toward the heavens. Built during the early days of the Second Founding, the cathedral was a modest edifice of reinforced stone, its walls etched with the Emperor’s litany and the symbols of the Ecclesiarchy. Beneath its vaulted nave lay a network of crypts and burial chambers, each sealed with iron bolts and ancient rites meant to keep the dead—and whatever else lay below—undisturbed.
The First Omen
It began with a tremor. Not the usual seismic rumble caused by the planet’s tectonic activity, but a subtle, rhythmic pulse that seemed to emanate from the very foundations of the cathedral. Brother‑Chaplain Marius, the priest assigned to the shrine, felt the vibration through his sandals as he walked the nave during the midnight office. He paused, eyes closing, and whispered a prayer to the Omnissiah, sensing a presence beyond the material world.
The next morning, Magos Dominus Thalor of the Adepta Mechanicus arrived with a detachment of Tech-Priests. The Mechanicus had received a faint, anomalous signal on the Warp‑Resonance Array stationed near the cathedral—a signal that did not match any known beacon, nor any recorded daemon echo. Thalor ordered a subterranean scan of the cathedral’s foundations.
What the scanners revealed sent a ripple through the minds of both the Ecclesiarchy and the Mechanicus: a massive, perfectly geometric lattice of unknown alloy lay buried twenty meters beneath the main altar. The lattice pulsed with a soft, azure glow, its pattern reminiscent of the Webway’s latticework yet unlike any technology the Mechanicus had catalogued.
The Excavation
Word of the discovery spread quickly. Inquisitor‑Lord Severian Voss, a specialist in xenos artifacts and forbidden relics, arrived with a contingent of Adeptus Astartes from the 10th Regiment of the Iron Hands. Their mission was twofold: secure the site and determine whether the artifact posed a threat to the Imperium.
The excavation began at dawn. Skilled laborers, overseen by the Magos, removed stone blocks with careful precision, while Battle‑Sisters of the Order of the Sacred Flame stood guard, chanting prayers to ward against any warp contamination. As the trench deepened, the air grew colder, and a faint scent of ozone tinged the dust.
At precisely 0603 hours, the workers uncovered a slab of blackened crystal that seemed to absorb the surrounding light. Embedded within the crystal was a cylindrical object roughly the size of a human forearm, covered in intricate sigils that glowed faintly when touched. The moment the first Tech‑Priest brushed his hand against the sigils, a low hum resonated through the cavern, and the crystal emitted a burst of blue‑white energy that illuminated the entire excavation pit.
The object—later identified by the Mechanicus as an Archaic Artefact—was composed of a material that defied classification. Its surface bore a mixture of ancient Terran runes and unknown xenos glyphs, suggesting a creation that predated the rise of the Imperium itself.
The Revelation
Inside the cathedral’s sanctum, Inquisitor Voss convened a council. With him sat Canoness Alethia of the Sisters of Perpetual Torment, Farseer Lirael of the Craftworld Ulthwé (who had arrived via a spatial rift drawn to the artifact’s resonance), and Valnar the Warsmith, a renegade Iron Hands warlord now aligned with Chaos, who had been tracking rumors of the relic for months.
Each faction interpreted the artifact differently:
The Inquisition saw a potential weapon—an instrument capable of sealing or opening Webway rifts, a power that could either safeguard the Imperium or unleash untold horrors.
The Sisters believed the artifact was a blasphemous relic, a test from the Emperor to punish those who would dare tamper with the Warp.
The Eldar recognized the lattice as a remnant of the ancient Webway architecture, a “birth‑rift” that could be reclaimed to heal the Great Rift that threatened their craftworlds.
Valnar, ever the opportunist, sensed the artifact’s latent daemonic echo, envisioning a conduit through which the Chaos Gods could flood the galaxy.
The council’s debate was interrupted when the crystal’s glow intensified, and a low, mournful chant echoed through the cavern—no voice, but a collective psychic impression that seemed to speak directly to each participant’s deepest fears and hopes.
In that moment, the artifact projected a holographic map of the galaxy, highlighting fractures in the Webway that corresponded to known Rift storms and daemon incursions. At the center of the map, a bright point pulsed—the very location of the cathedral itself.
The revelation was clear: the artifact was a “Webway Beacon”, a device left by an ancient civilization (perhaps the Old Ones or a forgotten Eldar empire) to monitor and mend the fabric of reality. Its activation could heal a rift, but if corrupted, it could widen the breach, allowing the Immaterium to spill into realspace.
The Aftermath
The discovery set the stage for a crusade unlike any the Imperium had seen. Forces from across the galaxy converged on Vespera‑9, each vying for control of the beacon. Battles erupted in the streets of the settlement, in the catacombs beneath the cathedral, and even within the warp‑touched shadows that began to seep from the artifact’s glow.
Yet, amid the clashing steel and psychic fury, a single truth endured: the beacon was a relic of a time when the universe was whole, before the Great Rift tore it apart. Its existence reminded all who beheld it that the fate of the galaxy rested not only on the might of armies, but on the fragile threads that bound reality together.
And so, the Archaic Artefact—found beneath the humble stones of Saint Cyriacus—became the fulcrum upon which the destiny of the Imperium, the Eldar, the Chaos legions, and the Sisters of Perpetual Torment would turn, shaping the future of the great crusade that would follow.
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Major Factions
Imperium –
Crusade of the Holy Seal Secure the artifact, bring it to Terra for study and use.
Inquisitor‑Lord Severian Voss (master of relics)10th Regiment of the Adeptus Astartes (Iron Hands), Ecclesiarchy Chaplains, Imperial Guard “Riftguard” battalions
Chaos –
Warband of Valnar the WarsmithCorrupt the artifact, turn its Web‑healing power into a gateway for daemonic invasion.Valnar the Warsmith (Iron Hands warlord turned Chaos Lord)Black Legion Terminators, Iron Warriors siege tanks, Daemon Engine “Rift‑Ripper”
Sisters of Perpetual Torment
Defend the holy sites, prevent any profane use of the relic.
Canoness Alethia (of the Order of the Sacred Flame)Battle Sisters, Penitent Sisters, Retributionist squads
Xenos
Eldar –
Craftworld UlthwéReclaim the artifact’s original purpose: close the Rift and protect their ancient birth‑rift.
Farseer Lirael (vision of the Webway)Aspect Warriors (Striking Scorpions, Howling Banshees), War‑hosts, Spirit Stones