Rune Technology was unlike any type of knowledge Baiyu had encountered before, belonging to a distinct category of knowledge.

In front of the trunk, there was a small, glowing symbol.

Baiyu placed his palm on it.

Waves of obscure information surged forth.

Then.

He understood what this Rune Technology was.

With the help of the ability granted by the flint, Baiyu could completely grasp the meaning of each rune.

But merely understanding wasn't enough.

One also had to know how to utilize and activate them.

Rune Technology is essentially one rune after another, emitting power, constructing various special structures.

This Rune Technology on the trunk in front.

Is a very simple cipher lock.

But to unlock it, one must understand the rune and be able to use and consume it.

The only beings that might meet these two criteria are probably the Stone Shell and Shell entities, the original users of Rune Technology.

In the current era.

Unlocking this lock is as hard as reaching the sky.

Right now, Baiyu's hand was pressed on the trunk, on a smooth marble embedded in it.

After lightly pressing down.

This marble, similar in size to a book, began to protrude, and Baiyu inscribed several strange symbols on it.

...

Soon.

After Baiyu completed a series of rune drawings, the marble retracted back into the trunk.

Oulei watched this scene nervously.

It concerned his survival; he couldn't help being anxious.

Time passed by the minute.

But after the marble sank, the entire trunk showed no further reaction, and the two looked at each other in silence, the atmosphere becoming somewhat tense.

"Are you sure it will work?"

Baiyu asked.

Oulei shook his head and sighed: "If it doesn't work, you should leave as soon as possible; it's destiny.

Once you're out, you can inquire whether there's still the Angi family.

If there is.

You can get help from them, just mention my name."

Clearly.

Oulei also felt little hope of escaping, momentarily discouraged.

But just after he said this, a rumbling began, causing the entire room to shake, countless tree roots collapsed from the walls, flying debris hit the ground with a screeching friction sound.

The giant tree imprisoning Oulei also began to disintegrate.

The two looked at each other in ecstatic disbelief.

With the giant tree withering away, the entire room was collapsing, such a commotion naturally disturbed all the Exotic Beasts underground.

Yet.

This situation paled in comparison to the changes happening to Oulei.

With both hands he freed himself from the vine's constraints, a blood qi tornado rapidly formed around him as the center.

His previously dried skin, akin to old tree bark, quickly rejuvenated.

Shrunken muscles swelled robustly in this instant.

In merely one minute.

Though not fully regaining a youthful state, he was now entirely different from the previous image of a trapped mummy.

At least.

Now Oulei looked like a normal old man with a rosy complexion, walking with a confident stride.

And just when he got out.

All surrounding Spiritual Qi was absorbed by him, leaving no greenery.

"Let's go!"

Though Oulei's face was filled with excitement, he didn't emit the typical villainous laugh, but instead, urged Baiyu to quickly escape the collapsing room.

This return journey was much easier than when Baiyu entered before.

Oulei's entire body burned with blood qi, resembling a Super Saiyan, enveloped in a layer of red aura, carrying Baiyu through the air at bullet-like speed, smashing everything along the way.

Including the three-headed Exotic Beast intending to feast on Baiyu.

The moment they collided with Oulei, they turned into dust, perfectly blended together, even their ashes melded.

"Ah, this is the feeling of being alive..."

Oulei sighed deeply, bursting out onto the surface.

The fierce sunlight of the No Darkness Realm illuminated his body, surrounded by terrified Demon Race people.

"Over a hundred years, the disgusting appearance of the Demon Horn Race hasn't changed one bit."

Oulei furrowed his brow, pulling out a blood-red thread, scattering it around.

Crack...

The surrounding Demon Race people were instantly dismembered, the red thread like the sharpest blade, madly harvesting the lives of nearby races.

Baiyu watched with a surging heart.

What a guy, he wasn't exaggerating; one move was enough to know, an old Tier Two.

With one strike.

No matter if they were four-horned, six-horned, or eight-horned Demon Race people around, all were slain by this red thread in a flash.

In no time.

The area originally packed with Demon Race people was now thoroughly deserted.

Those who died did, those who fled did.

Oulei had no intent to pursue; he took a breath, stretched his muscles, then focused on Baiyu with solemnity:

"Thank you!

But now is not the time for gratitude, leaving here quickly is wise, there are many powerful beings among the Demon Race in the Demon City.

Some leaders, I'm wary of as well.

My strength isn't fully restored; if surrounded, it's hard to escape with you safely."

Baiyu nodded.

After all, Demon City was the Demon Race's stronghold.

Prior to entering with Yao Shuimei disguised, they didn't attract much attention, but now, the entire Demon City was likely on high alert.

Something went wrong in the Demon King's Palace.

Baiyu could be sure the Demon Race was on edge, responding swiftly to any anomaly.

Baiyu wanted to leave.

But he was also concerned about Yao Shuimei still in the Demon King's Palace.

The current situation differed greatly from what had been agreed upon.

Plans couldn't keep up with changes.

Uncertain what Yao Shuimei's situation inside was.

Baiyu wanted to wait for her to come out, which clearly wasn't feasible.

"Let's go, let's get out of the city first."

Baiyu recalled Yao Shuimei's previous instructions and decided.

Oulei nodded, intending to mobilize blood qi for a bloody escape.

Unexpectedly, Baiyu's hand suddenly rang a bell, which had been quiet, with an urgent sound.

Baiyu furrowed his brow.

This was the magical item Yao Shuimei gave him for contact.

If no problems arose.

Yao Shuimei would contact him via this bell and instruct him to open the bag.

Though he didn't know what's in the bag.

Clearly, it was an escape tool.

Baiyu hesitated briefly; he hadn't seen Yao Shuimei's figure yet, but the bell rang.

However.

He quickly decided, pulled out the bag, and opened it instantly.

He trusted Yao Shuimei's judgment.

After the bag opened, a swarm of firefly-like entities floated out, glowing with starlight, quickly forming into a Star Gate.

Baiyu's expression slightly changed.

This was evidently Yao Shuimei's prepared exit strategy, a one-time teleportation gate for a direct departure.

Her plan was to rescue Qiu Yun and escape through this gate.

But now.

There must be unfavorable changes in the Demon King's Palace.

"Baiyu, what's this?"

Oulei looked in disbelief at the light gate that appeared before him.

"It's a teleportation gate; you didn't have this in your era?"

"No..."

"Alright, it's a tool that lets someone make long-distance moves quickly, very precious.

And varying types.

The effects of a teleportation gate can vary, difficult to explain all at once.

Anyway, just know that once we pass through this gate, we can escape here!"

Baiyu explained.

Oulei's eyes shone upon hearing this: "What are we waiting for? Let's go, now that Demon City is in chaos, let's leave quickly."

Baiyu shook his head: "My companion hasn't arrived yet."

Oulei just remembered Baiyu had a companion, also a formidable fighter.

He went silent a moment, wanting to tell Baiyu that she might have perished.

For since just now.

The intense spirituality of that expert suddenly vanished from his perception.

Experience told him.

Such occurrences meant two possibilities, either the person far exceeded him in strength, disguising their spirituality, hiding it away.

Or the person suddenly died.

And given the current situation, it was evidently the latter.