Hello, is this a letter addressed to Demon Fortress?

wait.

A long wait.

Behind the iron gate, the demon's roars grew louder and more frequent.

The screeching sound of claws digging into the iron gate was like someone scraping their heart with their fingernails.

The dwarves beside the magic crystal cannon tensed up, gripping the cannon handle and staring intently at the door.

No one speaks.

No one moved.

Only heavy breathing and the pounding of the heart could be heard.

one second.

two seconds.

three seconds.

boom--

Suddenly, a deafening roar came from afar.

boom--

The deafening roar shook the entire Fortified Shield City.

It wasn't the roar of magic crystal cannons, nor the deafening sound of collapsing city walls, but something much larger and more awe-inspiring.

It sounded like the mountains were roaring.

The demonic roar behind the iron gate stopped in that instant.

The claws that had been frantically scratching at the iron gate stopped.

Even the stench and blood in the air seemed to freeze for a moment.

Then, the ferocious roar began to weaken.

It wasn't that they disappeared, but rather—they left temporarily.

Barna and Grom exchanged a glance.

They knew that the fortress lord had made his move.

Streams of perception extended outward, passing through the iron gate, through the barrier, and probing into the mountain covered by demons.

Above the iron gate, the dwarf on scouting suddenly roared:

"Those three demon lords headed towards the south gate!"

"They're chasing the fortress lord!"

In my perception, those three powerful beings, as scorching as the sun, are rapidly moving away.

They disappeared.

Like a signal.

Grom roars:

"Open the door!"

The massive iron gate slowly opened amidst the flashing runes.

The moment the door cracked open, the wind and snow outside, accompanied by the howling of demons, rushed in.

Then there is the demon itself.

Black, red, and gray-white, they squeezed in through the crack in the door.

Claws, fangs, and a twisted body instantly filled the space behind the door.

"fire!"

The dwarves' roar drowned out the demons' howls.

The magic crystal cannons lit up in beams.

Boom—Boom—Boom—

Each shot exploded amidst the horde of demons, sending fragments of flesh flying and blood splattering everywhere.

But the fallen demons were immediately trampled over by those behind them.

Just then, Barna moved.

He raised his staff high.

The chanting was like an ancient war song, each syllable causing the surrounding air to tremble.

then.

The staff slammed heavily onto the ground.

The ground shook violently.

Outside the iron gate, the ground suddenly bulged up.

Countless enormous stone pillars burst forth from the ground, carrying immense power, piercing through swathes of demons.

The stone pillars seemed alive, twisting, spinning, and sweeping, tearing the demons outside the door to shreds.

Whether high-ranking or extraordinary, they were all shredded into pieces.

Legendary earth magic, Earth Piercing.

"Walk!"

Barna roared.

Lin Gui took a deep breath.

A thought arose.

The train, which was tens of meters long, began to move.

The first carriage floated out of the iron gate.

Section 2.

Section 3.

One carriage after another flew out of the door under the cover of fire from the magic crystal cannons.

The demons were howling, roaring, and lunging forward.

But the dwarves' cannon fire tore them to pieces.

at last.

The last carriage also flew out of the iron gate.

Lin Gui's mind stirred.

The power of the Night Gauze Robe instantly enveloped the entire train.

The train vanished in an instant.

It's not invisible, not faded, but completely gone.

Not even a trace of its breath remained.

Lin Gui maneuvered the train, passing through the demons surging towards the iron gate, and began to ascend.

Ascending into the sky.

It flew slowly toward the silent sea.

Below, there were countless demons.

They densely covered the mountains, the city walls, and everything in sight.

And in the sky, countless demons were also circling.

Winged, floating, like dark clouds that blot out the sun.

Lin Gui's voice rang in the ears of Barna and the others.

"Do not move."

"Do not make any movement."

The dwarves held their breath and remained motionless.

They watched as a gigantic flying demon swept past the train.

The demon's wings flapped, creating a wind that almost reached their faces.

But it only passed by.

Nothing was found.

They watched the train travel through a swarm of demons that blotted out the sky.

Sometimes it veered left, sometimes right, and sometimes it squeezed through the gap between the two demons.

That enormous creature, at this moment, was as agile as a swimming fish.

Swim silently through the sea of ​​demons.

Barna's eyes widened.

The eighteen dwarf craftsmen stood there dumbfounded.

They watched as the demons swept past them.

Watching the train weave through the mass of death.

Watching all that could not possibly happen.

It happened right before my eyes.

"this……"

Barna opened his mouth, but could only utter this one syllable.

His eyes widened as he watched the train pass between two enormous flying demons.

They were so close that they could almost see the patterns on the demon scales.

But the demons just continued flying forward, bewildered.

"That's really true..."

He murmured, but couldn't get the rest of his sentence out.

As a legendary mage, he had witnessed countless incredible scenes.

But what I'm seeing now...

It still left his mind blank.

Grom, standing nearby, also stared wide-eyed at the demons around them who hadn't noticed them, and sighed in amazement.

"As expected of an epic-level stealth spell."

"I've learned something new."

Barna’s expression suddenly turned strange.

"Epic rank?"

He turned his head and stared at Grom, his voice trembling.

Grom paused for a moment.

"Isn't that right?"

"Isn't this the epic magic scroll that Brother Lin Gui cast?"

"Sigh, this time the delivery guy really went to great lengths..."

Barna did not answer.

His brows furrowed, and his eyes became more serious than ever before.

As a legendary mage, he was extremely sensitive to fluctuations in magical power.

He keenly observed the moment Lin Gui made the train disappear.

The magic that blesses the train.

Advanced level.

Only higher-level ones.

High-level magic, yet reaching the level of epic-level stealth magic.

What kind of magic is this?!

For the first time, his voice carried disbelief.

at the same time.

The soul bead rolled gently inside Lin Gui's robe.

Shadow Blade Lin's soul light drifted out and condensed into a blurry human figure, sitting on Lin Gui's shoulder.

Those pale blue eyes were staring at him.

"What exactly is this magic of yours?"

Her voice carried a long-suppressed curiosity.

Along the way, she witnessed the strangeness of Lin Gui's magic.

It possesses high-level magical output, yet achieves the effect of epic stealth magic.

In terms of concealment, this magic is almost at its peak.

She had always wanted to ask, but she never did.

After all, her relationship with Lin Gui wasn't good; they had even fought each other.

But this time, watching the other person move freely through the rampaging demons, she couldn't hold back any longer.

Lin Gui replied calmly:

"It's just ordinary concealment magic."

He paused.

"It's just that some...science has been added."

Shadow Blade Lin: ?