With the Phantom Lord threat dismantled, the Celestial Forge richer than ever, and a new Dragon Slayer, Gajeel, inducted, Arthur knew he couldn't afford a period of rest.
"Now, I remember what is going to happen in the future. I should end it before it gets out of control."
The political power vacuum left by the collapse of the Magic Council and the war meant that the other Dark Guilds would seize the opportunity to move.
Arthur's focus shifted immediately to the most dangerous and elusive of the Balam Alliance: Oración Seis.
"They were a small, tightly knit group of elite mages, each wielding a forbidden or rare magic, operating under the mantra of "Nirvana," a weaponized destructive magic."
"The Balam Alliance is like a three-headed snake,"
Arthur explained to a focused Rimuru, Ur, and Ultear.
"Phantom Lord was the body we just crushed. Now we address the fangs. Oración Seis is the threat to regional stability, and their goals are tied directly to chaos and the pursuit of ultimate magic."
Arthur immediately tasked Ultear with her first critical mission for the Celestial Forge. Her magic and political knowledge were uniquely suited to this task.
"Ultear,"
Arthur began,
"You have intimate knowledge of the structure and movements of the Dark Guilds and the old Council. You will use your Arc of Time and your intelligence network to pinpoint the exact location and current objectives of Oración Seis."
Ultear, eager to prove her renewed loyalty and atone for her past, accepted the mission with absolute focus.
Her Arc of Time wasn't just for battle; it could be used for advanced tracking by briefly rewinding the conceptual timeline of a specific magical residue, allowing her to trace the recent movements of the Dark Guilds.
Within hours, Ultear returned with the precise intelligence:
"Oración Seis current location is in a massive, hidden cavern system deep within the forested mountains of the western continent, near the boundary of the Fiore Kingdom. They are actively searching for the location of Nirvana, an ancient, legendary magic capable of switching the moral alignment of people from good to evil, or vice versa, over a massive area. Their Master, Brain, is actively trying to awaken Nirvana,"
Ultear reported, her voice laced with urgency.
"If they succeed, the massive chaos will make them unstoppable. They must be stopped before they find the magical seal."
Arthur recognized the sheer power of Oración Seis—their ranks included mages who could instantly destroy a city (Cobra) or warp light (Hoteye).
This required an intervention of overwhelming force and unique conceptual counters.
Instead of using a long travel time, Arthur used his Warp Gate to perform a precise, stealthy insertion.
He didn't just teleport them to the mountains; he used his power to define their location to be inside the seal chamber where the Oración Seis were converging.
They materialized silently within a massive, underground cavern, filled with arcane inscriptions and massive Lacrima crystals—the seal chamber containing Nirvana.
The Oración Seis were already there: Brain (the Master), Cobra (the Poison Dragon Slayer), Hoteye (the Light Mage), Midnight (the Reflector), Racer (the Speed Mage), and Angel (the Celestial Spirit Mage).
The shock of the Celestial Forge's immediate, silent appearance was total.
Brain was the first to react, his terrifying dark magic swirling.
"Intruders! Who dares break the seal chamber?!"
Arthur stepped forward, his team arranged behind him in an unassailable line. He did not engage in dialogue.
"You want to unleash chaos to the world,"
Arthur stated, his voice resonating with conceptual finality.
"Your search ends now."
Arthur, Rimuru, and the team acted simultaneously with a single, devastatingly coordinated strike designed for capture, not destruction.
Arthur focused his Reality Blending on Nirvana and the entire cavern. He didn't destroy the weapon; he simply defined its current existence as "Inert and Irrelevant." The ancient magic weapon instantly went dark, its power nullified.
Rimuru unleashed a silent, massive sphere of her Predation skill. It didn't consume the mages, but it swallowed all the ambient hostile magic in the chamber, completely neutralizing the enemy's magical environment.
Capitalizing on the instant confusion, Ur unleashed her Ice-Make Master skill. Not just ice, but a torrent of Conceptual Ice Prisons instantly enveloped Racer, Hoteye, and Angel, freezing them in non-lethal, absolute zero-reinforced ice.
Shion moved with a speed that defied Racer's capture, delivering a single, non-lethal knockout blow to Cobra before the Dragon Slayer could even process his capture.
Shuna used her Creation Magic to instantly weave impenetrable threads around Midnight, whose reflection power was neutralized by the conceptual precision of her magic.
The battle was over in seconds. Only Brain remained standing, his power isolated and his entire plan destroyed.
"You... you nullified Nirvana!"
Brain shrieked, his mind reeling from the impossible, simultaneous failure of his entire team.
Arthur met his gaze.
"Your darkness has nowhere left to run, Brain. Your guild is finished."
The Oración Seis were captured, defeated not by an extended battle, but by a sudden, overwhelming show of conceptual and strategic superiority.
The Balam Alliance was now effectively neutralized, securing the stability of Fiore under the silent protection of the Celestial Forge.