The knight's eyes widened as he realized what was happening, but it was too late.
The gas spread quickly, seeping into their lungs.
Within moments, the archer collapsed, choking on the poison.
The mage fell next, his spells useless against the gas.
The knight, still standing, tried to charge forward, but his strength gave out before he could take more than a few steps.
Seth watched in silence as the last of the adventurers fell.
It had been a close battle, closer than he liked, but the dungeon had held.
With the adventurers dealt with, their bodies littering the dungeon's chambers, Seth finally exhaled.
The battle had been tough, but the dungeon had proven itself, powerful and resilient.
However, as the victory settled, his mind drifted back to the southern room.
The mana surge.
Even after stabilizing part of the dormant mana vein, Seth could feel its presence like a ticking bomb beneath his feet.
He needed to deal with it before something disastrous happened.
Every upgrade, every creature, every trap, it all depended on the stability of his dungeon's core.
And the surge was a threat to everything he had built.
He glanced at the status screen, his eyes lingering on the anomaly.
[Dungeon Status]
[Rank: C+]
[Core Integrity: 100%]
[Mana Reserves: 380/500 MP]
[Guardian: Greater Shade (Active)]
[Creatures: Elite Shade Stalker (Active), Slime (Tier 3) (Active)]
[Traps: Spiked Pit (Reinforced), Poison Gas Chamber (Active), Stone Grinder (Active)]
[Anomaly: Unstable Mana Surge in Southern Room (Partial Stabilization Achieved)]
[New Command: Tap into Mana Vein for Future Upgrades]
[Mana Regeneration: 100 MP per hour]
The dungeon's core was at full integrity now, and his mana regeneration had increased, but that was only a temporary relief.
If he couldn't stabilize the entire mana vein, it might unravel everything, especially with more adventurers on the horizon.
Seth paced in the core room, deep in thought.
The energy pulsing from the vein was chaotic, and while he'd calmed it for now, the danger remained.
He summoned the command options, scrolling through potential actions.
[Command: Attempt Full Mana Vein Stabilization]
[Cost: 150 MP]
It was a heavy investment, especially after the battle.
But it was necessary.
Seth took a deep breath and confirmed the command.
[150 MP Used. Mana Reserves: 230/500]
[Stabilization Attempt in Progress...]
The dungeon trembled as the command took hold.
The energy from the core intensified, spreading through the walls and into the southern room.
Seth could feel the pull from the dormant vein as the dungeon's power reached deep into the earth, seeking control over the surge.
He clenched his fists, his eyes never leaving the status screen.
This wasn't like the partial stabilization he'd done before.
This was a full-scale effort, and failure meant the mana could erupt violently, tearing the dungeon apart from within.
The process took minutes that felt like hours.
[Synchronization Complete. Dormant Mana Vein Fully Stabilized.]
Seth let out a breath he didn't realize he was holding.
[Success.]
[Core Integrity: Stable.]
[New Option Available: Tap into Mana Vein for Enhanced Dungeon Expansion.]
[Warning: High Mana Cost.]
The surge had finally calmed.
The pressure he'd felt beneath the dungeon was gone, replaced by a steady hum of controlled power.
It was like the mana vein had fused with the dungeon itself, creating a deeper connection.
He scrolled through the updated status.
[Dungeon Status]
[Rank: C+]
[Core Integrity: 100% (Stable)]
[Mana Reserves: 230/500 MP]
[Mana Regeneration: 100 MP per hour]
[Mana Vein Stabilized: Tap Available for Future Use]
The dungeon was finally stable.
Fully stable.
And with the mana vein fully under control, Seth now had access to even greater potential.
The tap into the vein was a tempting option, he could use it to power future upgrades or create new abilities for the dungeon, but the mana cost would be enormous.
He glanced at the next command that had been unlocked.
[New Command: Enhance Dungeon Boundaries]
[Cost: 200 MP]
It was another upgrade he could invest in, expanding the dungeon's reach and adding more layers of defense.
But for now, he needed to pace himself.
Seth stepped away from the core, feeling a sense of calm wash over him.
His mana was regenerating at a steady rate, and with 230 MP left, he still had enough to defend the dungeon if necessary.
The traps were intact, his creatures were strong, and most importantly, the dungeon was no longer at risk of collapse.
He brought up the final notification.
[Dungeon Synchronization Achieved.]
[Consciousness Enhanced: Dungeon Awareness Evolving.]
The sense of sentience within the dungeon grew stronger.
It wasn't just a tool anymore, it was awake, aware of itself and its surroundings.
Seth could feel the dungeon's thoughts brushing against his own, still childlike but more focused, more intentional.
"Good," Seth whispered.
"We're ready now."
The battle had been won, and the mana surge was under control, but Seth knew this was only the beginning.
The dungeon was growing stronger, but so were the enemies it would attract.
He could sense it, the world outside was changing.
More powerful adventurers, rival dungeon masters, and even higher forces would eventually come for him.
He checked the dungeon's boundary, now fully fortified, and nodded.
For now, the dungeon was ready.
Fully upgraded, stable, and lethal.
But Seth knew he needed to stay ahead.
To keep expanding.
To stay one step ahead of the forces that would inevitably come for him.
The higher enemies would come soon enough.
But by then, his dungeon would be even more formidable.
For now, he had time.
Time to prepare, time to strategize, and time to use the dormant mana vein's energy to push the dungeon to even greater heights.
He took one last look at the dungeon's status screen before leaving the core room, his thoughts already turning to the future.
The calm before the storm.
Seth left the core room, the hum of the now-stabilized mana vein fading into the background as he moved through the dungeon's darkened halls.
His steps echoed off the cold stone, a quiet reminder that despite his recent victory, the dungeon was still a work in progress