Chapter 30: Crystal Cube
The emerald plasma inside the core of the vertical portal did not just churn; it began to boil under the sudden, violent change in local air pressure.
Leon Graves stood at the apex of the bone-and-iron altar, his leather boots rooted to the glass-smooth obsidian tiles of the Ashen Badlands. The cold, sharp wind of the floor-wide terrain shift cut through the open spaces of the clearing, rustling the heavy fabric of his Cloak of the End-Game. Around his shoulders, the unpolished alloys of the Pauldrons of Finality glowed with a faint, starlight-absorbing black sheen, casting a heavy, suffocating shadow across the stone steps where the five sentinel alien scouts had been reduced to mountains of gray sand just minutes ago.
He extended his left hand, pulling the glowing crystal cube—the Firmament Core Fragment—from his internal inventory space.
The artifact throbbed with a dense, highly stabilized golden light that matched the energetic frequency of the cosmic architects. This wasn’t a standard dropped resource or a common mana crystal harvested from a low-tier gate boss. It was a structural override key, a fragment of raw world data containing the operational code needed to unlock the physical boundaries separating the human sectors from the true layers of the universe.
In the original timeline, before his regression, humanity had spent nearly three months of bloody attrition trying to clear the vanguard forces surrounding this altar, completely unaware that leaving the anchor locked allowed the world system to continuously stream elite hunting squads onto Earth. Leon had bypassed three weeks of military negotiations and corporate warfare to claim this key within the first twenty-four hours of the apocalypse.
"Time to unlock the path," Leon murmured into the quiet mist.
He violently slammed the golden crystal cube straight into the swirling center of the green plasma vortex.
BOOM.
A massive, silent shockwave of pure conceptual energy violently exploded from the point of contact, tearing across the obsidian altar and sending a violent ripple through the dark wood of the surrounding white forest. The vertical green plasma tear did not shatter; it widened, the emerald fluid shifting into a dense, starlight-swallowing black-violet color that perfectly matched the aura of his own SSS-rank Calamity Domain.
The entire sky above the badlands buckled, the infinite cosmic void of the Obsidian Firmament descending until the floating planetary fragments felt close enough to touch.
[Firmament Core Fragment integrated successfully.]
[The First Floor Barrier of Zone 44-B has been officially dissolved.]
[Global System Registry Updated: Candidate Leon Graves has unlocked the path to Floor 2.]
[Distributing World First Clearance Rewards...]
A profound, suffocating vibration rattled the deep foundation of the entire borough. High above the horizon, the golden translucent ledger unrolled itself for every remaining survivor on Earth to see, displaying his name at the absolute peak of the cosmic leaderboard with an unassailable level 18 status and a record that broke the linear progression script of the architects.
Leon closed his eyes, his Perception stat expanding through the newly updated grid lines. Through his Level 2 Ashen Fog, he could feel the sudden, massive expansion of the world logic. The three-mile perimeter of his stronghold, the Ashen Citadel, remained completely secure, its black-violet dome holding the line against the shifting geography of the wuthering wastes outside. But the path ahead was no longer a flat human city. The system had officially opened the gateway to the second tier—a vertical world of ancient, toxic swamps and abandoned alien outposts where the baseline level of monsters started at Level 25.
He reached into his sleeve, his bare fingers wrapping around the cold, textured grip of the Abyssal Stinger.
The matte-black dagger hummed against his palm, its glowing violet runes flaring in response to the massive pool of raw mana circulating through his channels. Thanks to his unique Grave Reclamation passive talent, his energy reservoir was completely full, sitting at a massive 1,600 maximum capacity after absorbing the lifeforce of the sentinel scouts. He didn’t need to return to his base to rest or restock on resource potions; his build was entirely self-sustaining, a walking engine of destruction designed to feed on the flesh of his targets.
He turned his head slowly, his rings of deep violet pupils locking onto the dark mouth of the portal.
"Miller, Davies," Leon’s flat voice transmitted directly into the minds of his two guards back at the citadel lobby through the core link. "The gate has been cleared. The structural boundaries of the first floor are shifting. Maintain the hard defensive grid along the southern wire. If the corporate syndicates under Director Keating attempt to negotiate for the residual mana stones in the valley, use the automated turrets to sweep the avenue."
"B-Boss?" Miller’s voice crackled back through the link, raw with a deep, chattering panic. "The sky just turned completely black! The bone-trees outside the gate are growing iron thorns! We can hear things scraping against the outer walls!"
"The dome will not yield," Leon said, his flat voice carrying a chilling, metallic resonance that instantly calmed the guard’s panic through the spiritual pressure of his command. "Keep the deadbolts thrown. I am stepping across the line."
He cut the link before Miller could answer. He took a single, controlled step forward, his leather boots crossing the threshold of the stone steps as his physical form seamlessly dissolved into the thick gray curtains of the fog.
The green plasma of the portal wrapped around his dark cloak, a violent, gravity-warping kinetic force trying to tear his molecular mass apart as the system prepared to transition his data to the higher layer. But with a Constitution stat tracking past one hundred, Leon Graves didn’t even bend his knees under the weight of the spatial transfer. He stood straight, his expression dead calm beneath his hood as the light of Earth faded completely, replaced by the dark, toxic horizon of the second floor. Volume 1 of his regression was officially closed, and the true slaughterhouse of the Obsidian Firmament was about to begin.