Hello, is this a letter addressed to Demon Fortress?

Navigating the raft, we slowly passed through the layer of light that served as the entrance, and our view suddenly opened up.

Without pausing, Lin Gui immediately maneuvered the raft to stay close to the rugged dome above.

It drifted toward a hidden natural crevice on the side, formed by huge stalactites.

After carefully hiding the raft and wooden crates inside.

The three of them were finally able to catch their breath.

Take a close look at this so-called "relic" hidden deep in the rift valley.

The scene before me was completely different from the magnificent ancient city or mysterious palace I had imagined.

Nearly a hundred meters below the stalactite where they were hiding, there was an incredibly vast underground space.

Within this space, countless enormous... trapezoidal tombs stood densely packed together.

These tombs were built from huge black rocks.

Each one is as large as a small mountain, arranged in neat rows, exuding an ancient desolation and heaviness.

This... is not an ancient relic at all!

It was not a terrifyingly large mausoleum complex!

But this size... looking around.

This cemetery covers an area almost half the size of the city of Karan!

Elvia and Shia were both stunned by the magnificent and eerie sight, and were speechless for a moment.

"No," Elvia was the first to come to her senses, lowering her voice.

"Where did this light come from?"

Lin Gui pointed to the dome and the towering cliffs all around.

There were countless fist-sized stones embedded there, radiating a soft glow.

"It's a magic stone."

"A special ore that can automatically absorb surrounding magic and convert it into light."

"Oh~~" Shia's eyes lit up slightly, as if she had remembered something.

"I remember those ridiculously expensive luminous pearls that nobles flaunted, weren't they also made of this?"

Elvia interrupted her newly ignited greed and reminded her.

"This kind of raw stone is not worth much."

"The truly expensive ones are high-end lamps that are meticulously crafted by master craftsmen using this as a base."

"If it's just stones, one gold coin can buy a whole basket of them."

The light in Shia's eyes dimmed instantly.

"Never mind that for now." Lin Gui turned his gaze to the vast cemetery below.

"Have you spotted the Holy Knights?"

At this height, only Shia, with her extraordinary eyesight, could barely make out the details of the ground.

Hia's emerald green eyes were like the most precise eagle eyes.

Slowly sweeping across the massive trapezoidal tomb below and the wide passageway within it.

After a moment, she shook her head.

"This place is too big, the tomb complex is complex, and the view is obstructed. We need to move around and take a look from a different angle."

Lin Gui understood, drew out the oak staff, and took the lead in straddling it.

Elvia saw this.

I remember seeing witches and mages in a magical city, riding brooms or staffs and flying freely in the sky.

Curiosity piqued, I was about to go closer.

A slender yet strong hand pressed down on her shoulder.

Turning her head, she saw Xia give her a "kind" smile.

"You sit in the back. That seat is mine."

Ignoring Elvia's bewildered expression.

Shea straddled the staff first, her hands naturally wrapping around Lin Gui's waist.

Then he turned his head, proudly raised his chin at Elvia, and made a victorious expression.

Elvia instantly understood, and laughed a few times, with a hint of mockery.

"How old are you? You're still acting like a little girl grabbing candy."

Shea snorted coldly, her silver hair fluttering gently in the dim light.

"Elves have long lifespans; if I were a human, I'd be a beautiful and charming eighteen-year-old girl!"

Elvia smiled and stopped arguing, gracefully straddling the seat behind Shia.

She reached out and wrapped her arms around Shia's slender and supple waist.

She deliberately leaned close to the elf's pointed ear and whispered in a soft, seductive voice.

"I'm twenty-seven years old this year. In human terms, shouldn't you call me Sister Elvia?"

Shia's ears turned bright red instantly, and her neck was tinged with a thin layer of pink.

"What nonsense are you spouting! Who wants to call you 'sister'!"

She nearly jumped off the staff, like a cat whose tail had been stepped on.

Fortunately, Lin Gui in front of him managed to grab him in time.

Lin Gui felt the subtle "war" and shaking coming from behind him and sighed helplessly.

"Hold on tight, we're about to descend."

"Shea, focus, quickly find the location of the Holy Knights."

Shea took a deep breath, suppressing the heat on her face, and refocused.

Her emerald eyes followed the staff as it slowly floated and descended.

He kept scanning every corner of the dilapidated giant tomb complex below.

Finally, in the very center of the cemetery, in front of the most magnificent and enormous square tomb, she spotted her target.

"There it is!"

She gave instructions in a low voice.

Lin Gui manipulated his staff, silently hovering above a towering stone pillar.

Look in the direction Shia pointed.

At the bottom of the massive, upward-reaching steps leading up to the central square tomb, one could see...

Ten knights, their bodies clad in gleaming armor and exuding a fierce aura, were gathered together, seemingly discussing something.

The leader was an exceptionally burly man.

Even from a great distance, one could feel the oppressive, mountain-like weight of the atmosphere.

It was John, the legendary paladin.

Not far from John, Lin Gui and his two companions spotted their target.

Rona.

She looked somewhat disheveled.

His leather armor was covered in dust, and his face was pale.

His entire body was covered in steel needles, and he was guarded by a knight.

What's even more unsettling is...

At Rona's feet lay a girl covered in blood, barely breathing.

Shia's pupils contracted slightly.

"That's a scout from the Dream Weavers, Linno... she might be the missing team member Luo Youyou mentioned."

Elvia's voice was low.

"Looks like she had bad luck while she was out on reconnaissance and got caught by that madman Ghosn."

"Under severe torture, he revealed the details about Rona and the ruins."

"That's why we entered this site."

Elvia looked at Lin Gui.

"What do we do now? Are we really going to just rush down and run away with Rona?"

"At this distance, your concealment magic couldn't possibly go undetected by a legendary mid-ranking knight, could it?"

"Lorna and John are only a few steps apart, and Gordon is right next to them."

"Of course it's impossible not to be discovered," Lin Gui said confidently, his gaze still fixed on the ground below.

"Unless... I can immediately break through to the high-level mid-level mage and max out my proficiency with the Night Veil."

"Huh???" Elvia almost bit her tongue.

"So how are you going to break through? Now? Here?"

Lin Gui didn't speak, but silently pulled out a seemingly ordinary letter from his pocket.

He asked himself silently.

"System, how do I determine if a letter has been successfully delivered? If I manipulate the letter to remotely float to Rona's hands, does that count as successful delivery?"

[Ding! The recipient must personally confirm "received" or clearly sign for the package.]

Physical contact alone does not meet the criteria for judgment.

"So, simply letting the letters reach her isn't enough?"

【right.】

"……All right."

Lin Gui sighed inwardly and put the letter back into his pocket.

It seems we can only wait for the right opportunity.

An opportunity to get Lorna to "sign" for the letter and for them to escape safely.

Lin Gui's gaze fell upon the entrance to the massive square tomb.