The cavern had fallen silent again.
Only the faint crackling of Priya's fading flames and the steady dripping of water from the cavern ceiling remained.
The massive corpse of the Stoneback Ogre Lizard lay collapsed across the cracked floor, its rocky armour shattered in several places.
Dust still floated through the air.
Avdhoot stood near the creature's body, breathing slowly as he examined the glowing crystals embedded in the stone floor.
They pulsed faintly with blue light.
Mana crystals.
Natural ones.
Manaswini knelt beside the vein carefully, brushing away loose gravel.
Her glasses reflected the glow.
"This isn't just a few fragments."
Her voice carried quiet excitement.
"This is a mana vein."
Priya raised an eyebrow.
"That sounds expensive."
Manaswini nodded.
"Very."
Raivan crossed his arms while scanning the dark tunnels leading deeper underground.
"If this is a natural dungeon formation, a mana vein means the dungeon has existed for decades… maybe centuries."
Veins like this formed only where mana naturally concentrated over long periods of time.
Avdhoot touched one of the crystals.
Warm.
The energy inside felt strangely calm.
But something about the cavern still felt wrong.
The deep growl they had heard earlier still echoed faintly in his mind.
Priya noticed his expression.
"You're thinking the same thing, aren't you?"
Avdhoot nodded.
"That roar wasn't from something like this."
He nudged the dead monster with his boot.
Raivan agreed.
"That creature was probably just a small fry."
Manaswini slowly stood up.
"And if it was, then what…?"
Priya finished the thought with a grin.
"Then the real owner of this dungeon is still alive."
At that exact moment—
The ground trembled.
Not violently.
Just a low vibration.
Like something enormous shifting somewhere far below.
Dust fell from the ceiling again.
The four students looked at each other.
Priya cracked her knuckles again.
"Well then."
She turned toward the dark tunnel.
"Let's go say hello."
The tunnel beyond the cavern sloped downward.
The air grew colder with every step.
Avdhoot reignited the small fire sphere in his palm, illuminating the narrow stone passage.
Their footsteps echoed softly.
Tap.
Tap.
Tap.
Strange glowing plants began appearing along the walls.
Unlike the blue moss from earlier, these were thin vine-like plants with faint purple veins running through their leaves.
Manaswini crouched beside one.
"…Nightshade mana creeper."
Priya blinked.
"That sounds poisonous."
"It is."
Manaswini carefully avoided touching it.
"These plants absorb ambient mana and convert it into toxins."
Raivan's voice remained calm.
"Meaning stronger monsters live nearby."
The tunnel widened gradually.
Avdhoot's senses sharpened as they moved deeper.
The deeper they went, the heavier the mana in the air felt.
It pressed against the skin like invisible mist.
Priya sniffed the air.
"Do you feel that?"
Avdhoot nodded.
"The mana density is increasing."
Manaswini frowned slightly.
"That's not normal for a surface dungeon."
Raivan suddenly raised his hand.
"Stop."
Everyone froze.
Silence returned.
Then—
SCRRRRRAAATCH.
A faint scraping noise echoed ahead.
Not a roar this time.
Something smaller.
But numerous.
The sound grew louder.
Scratching.
Clawing.
Skittering.
Priya whispered.
"…We've got company."
The creatures burst from the tunnel ahead like a wave of shadows.
Dozens of them.
Dungeon Crawlers.
Small, four-legged creatures with chitin armour and sharp mandibles.
Their red eyes glowed in the darkness.
Manaswini cursed softly.
"A swarm."
Priya grinned.
"Oh, good."
They charged.
Avdhoot moved instantly.
His dagger flashed.
SLASH.
The first crawler was split in half.
Priya smashed another with a flaming punch.
BOOM!
Raivan's frost blade cut through three at once.
Ice spread across their bodies instantly.
But more kept coming.
Dozens.
Their claws scraped across stone as they rushed forward.
Manaswini slammed her staff against the ground.
"Wind Pulse!"
A powerful gust blasted down the tunnel, knocking several creatures back.
Avdhoot spun low, slicing through two more attackers.
Priya laughed wildly while punching through the swarm.
But the creatures didn't stop.
They crawled over each other like living shadows.
Raivan's eyes narrowed.
"This many monsters shouldn't exist in a Tier-2 dungeon."
Manaswini realised something.
"…They're being pushed."
Avdhoot looked deeper into the tunnel.
Something worse was behind them.
Something is driving the swarm forward.
The ground trembled again.
A deep rumble followed.
The swarm suddenly panicked.
Several creatures turned and tried to flee back into the darkness.
Priya blinked.
"Wait… they're running?"
Then they heard it.
A slow.
Heavy.
Footstep.
THOOM.
The sound echoed through the entire tunnel.
Another step followed.
THOOM.
The swarm scattered instantly.
Creatures fled in every direction.
The four students slowly turned toward the darkness.
Something enormous was approaching.
The air itself seemed to vibrate with its movement.
Raivan's voice dropped.
"…This is bad."
A shadow slowly filled the far end of the tunnel.
Then two glowing yellow eyes appeared in the darkness.
Larger than a human head.
The creature stepped forward.
Stone cracked beneath its weight.
It was massive.
Nearly twice the size of the ogre lizard they had fought earlier.
But this monster stood upright.
A hulking creature covered in dark stone armour.
Two massive horns curved from its skull.
Long arms ended in claws as thick as swords.
Manaswini whispered.
"…Dungeon Behemoth."
Priya's grin slowly faded.
"That… is definitely not Tier-2."
The monster inhaled slowly.
Its chest expanded like a furnace.
Then it roared.
The sound blasted through the tunnel like thunder.
Avdhoot's heart pounded.
This creature was far stronger than the guardian they had just defeated.
Raivan stepped forward slightly.
His frost blade glowed brighter.
"Retreat is an option."
Priya rolled her shoulders.
"But not a fun one."
Avdhoot tightened his grip on his dagger.
His eyes remained locked on the monster.
Something deep inside him stirred.
The same feeling he had experienced in battle before.
A strange calm.
Danger was rising.
And so was his instinct.
He exhaled slowly.
"Let's survive first."
The Dungeon Behemoth lowered its head.
Then it charged.
The tunnel exploded with motion.
Stone shattered.
Mana surged.
The real battle had begun.
[End of Chapter 29]