Hello, is this a letter addressed to Demon Fortress?

Shea was unaware of Lin Gui's past.

All she knew was that he was a homeless child with no family or friends.

He has been to a magical city and possesses an outrageous ability to conceal himself.

That's it.

What she didn't know was that brief trip to the magical city.

Lin Gui experienced a tragedy he would never forget in his life.

And that tragedy was closely related to him.

Shea didn't know any of this.

Naturally, they also failed to understand the fleeting sadness in Lin Gui's eyes after his pause.

When she noticed something was amiss.

Lin Gui had subtly steered the conversation back to the topic.

"According to the forger, Bahrain—"

He patted the control stick of the airship.

"The maximum speed of this thing is about 700 kilometers per hour."

Shea blinked, having no concept of the number.

Lin Gui added:

"In other words, flying from Bounty City to Blackwater City."

"If I unleash my full power, it won't take ten minutes."

He paused.

"I don't know the exact speed of Shadow Blade Lin."

"But at least, the airship can outrun any assassin burst I've ever seen."

"Moreover, we have two advantages."

He held up two fingers.

"First, I can see spirit demons."

"Secondly, the strength of the three of us... is not outstanding."

Shia raised an eyebrow: "Being weak is considered an advantage?"

"Calculate."

Lin Gui nodded.

"The intensity of soul fluctuations is directly linked to strength."

He recalled the people he had observed with the [Eye of the Underworld].

The souls of the common people in Blackwater Harbor are as faint as fireflies.

Captain Freya is like a steady beacon.

And the soul of Fortress Master Balin Heavyhammer...

It was like a scorching little sun.

"The demons inside the walls are the same."

"The brighter the soul, the stronger it is, and the easier it is to be perceived by its own kind."

He pointed to himself and the two girls.

"Our 'faint light' is shrouded in mist."

"As long as you don't provoke anyone, it's hard to attract everyone's attention."

Shea nodded with a strange expression.

It's estimated that apart from Lin Gui, no one would think that being weak is an advantage in the forbidden area.

During the conversation, the airship had already reached the edge of the Howling Corridor.

The journey was strangely smooth.

Not a single demonic attack was heard, not even a sigh.

It was as if they were strolling around in their own backyard.

Lin Gui did not rush in.

He planned to "see" clearly with his eyes first.

See the exact locations of those epic demons.

The Howling Corridor is not very large, probably similar in size to the Black Magic Forest.

The terrain is quite unique; it is a huge sunken basin.

It is high on all sides and low in the middle, with few obstructions.

This means that as long as a sufficiently high vantage point can be found.

Lin Gui could then have a complete view of the distribution of spirits and demons throughout the entire area.

Then, strength is judged based on the brightness and size of the soul.

Finally, a straight path was planned to traverse the area.

The investigation process was extremely slow.

Lin Gui piloted the flying boat, slowly cruising along the edge of the basin.

His eyes turned gray as he scanned the area below without blinking.

The mist swirled above, and the faint light filtering through gradually dimmed.

The sun is disappearing.

They began their first night within the Wailing Wall.

Time slipped away slowly in the dead silence.

The ghost changes its location every so often.

It moves erratically, sometimes to the left, sometimes to the right, sometimes up, sometimes down.

Like a headless fly, it was bumping around aimlessly in the air above the basin.

Xia sat in the back, barely daring to breathe.

She didn't even dare to whisper to Eve.

They were afraid of disturbing the focused Lin Gui.

What she didn't know was—

To penetrate the thick fog and see more distant details.

Lin Gui had already quietly activated his [Demon Eye].

However, the manipulation of that demonic energy was incredibly precise.

Despite being a true demon, Shia was completely unaware of it.

Not to mention him, even the legendary demon hunters failed to discover that Lin Gui was a fake demon with demonic energy.

The night completely swallowed up the surroundings.

The night at the Wailing Wall is an ultimate stillness.

There was no sound of wind, no chirping of insects.

Even the air seemed to freeze, and breathing it into my lungs brought a chill.

Only the faint hum of the hovering airship proved that time was still flowing.

This silent investigation lasted an incredibly long time.

Lin Gui's brows furrowed more and more tightly.

The movement of the airship became increasingly bizarre.

Sometimes it rushes forward, sometimes it stops abruptly, and sometimes it turns without warning.

Shea couldn't hold back for several times and wanted to ask.

Eve in the back seat gently pressed her shoulder down and shook her head to stop them.

Time passed by, second by second.

The frequency at which Lin Gui moved the flying boat decreased.

The longest time was when it remained motionless for a full half hour.

Shea secretly observed.

The black mist in his gray eyes slowly shifted, his eyelids never blinking.

His right hand never stopped, rapidly drawing on the map with a charcoal pencil.

The map, which originally had only a few scattered markings, is now covered with symbols.

Shea leaned closer and glanced at it.

It was all strange shapes she couldn't understand, like squares and circles.

Nearly seven hours had passed since they arrived at the edge of the Wailing Corridor.

Just when Shia and Eve thought that Lin Gui was going to investigate all night—

The airship landed above the twisted branches of a giant, dead tree.

The tree branch was bare and menacing, like a ghostly hand reaching into the mist.

Lin Gui's hand, which was recording, drew a heavy circle at a certain point.

stopped.

He stared intently at the churning gray mist below and uttered three words in a low voice:

"Found it."

Shea, who was feeling a bit sleepy, instantly perked up.

"Have you found a safe route?"

Lin Gui nodded, then a cold smile curled at the corner of his mouth.

"more than."

"We've also found... the true location of Avalon."

Shea was stunned.

"Location? Didn't Rogge already mark it for us?"

Eve's voice came softly from behind:

"He lied to us."

Lin Gui picked up the map and pointed to the area surrounded by countless red crosses and skull marks.

A tiny blank circle is hidden in the very center.

It was only a few kilometers away from the point he had seen before, the one that Rogge had marked.

But it's precisely this difference of just a few kilometers—

Wakabayashi believed it and plunged headlong into it.

They might just barge into the lair of some epic demon.

Lin Gui put down the map and rubbed his sore eyes.

"We really can't be careless."

Xia's emerald green eyes widened instantly, and her little face turned red with anger.

She punched her knee so hard her silver hair almost stood on end.

"That damned knight!"

"We kindly helped him treat his companion, and he actually harmed us like this?!"

Lin Gui smiled instead and reached out to rub her frizzy head.

"Okay, okay."

"This isn't the first time you've witnessed the darkness of the city-state era."

"For a complete stranger you've only met a few times, this is... "

He paused, his tone flat.

"That's actually normal."

Shea gave a muffled "humph" and turned her face away.

"If I had known, I wouldn't have let Eve treat that demon woman."

"Let her fend for herself."