After the destruction of the Immortal Realm, I took in the fallen fairy.

"Heh heh, if I don't learn array formation from you, why should I share a room with those demons outside?"

Tian Qianchen was quite direct in his speech.

Lin Heng also knew that the reason why this elder of the General Administration had always been so polite to him was because he wanted to learn about array formations.

However, those who can sit in the position of Chief of the General Administration are all shrewd and capable individuals.

Since we want him to help with some odd jobs, we should test him a bit first.

"Alright, Elder Tian, ​​I do have an advanced array construction project that I haven't even tried myself, and I happen to be short of manpower."

"Advanced array construction? Really?!"

Tian Qianchen's eyes gleamed.

If I could participate in the construction of an advanced array...

Once I get back to the General Headquarters and brag a bit, won't I be so arrogant in front of those old guys?

"However, as you also know, the higher the level of array construction, the more it tests the application of basic knowledge of the rules."

Lin Heng smiled calmly and said, "How about we find a place first, and you try to build the Spirit Suppressing Tower Array? Then I'll decide whether you should participate."

"No problem, I'll be right there!"

Tian Qianchen didn't hesitate and picked up the remaining stone bricks next to the Fiery Camp.

"Please do me a favor."

Lin Heng instructed his servants to move the remaining stone bricks to the open space next to him.

After selecting a location, Tian Qianchen squatted down, and his expression became serious.

A moment later, he picked up two stone bricks and placed them neatly on the open ground.

Then came the third piece, the fourth piece...

It's actually not bad?

Lin Heng nodded slowly beside him.

Although Tian Qianchen did not construct the Spirit Suppressing Tower Array from the Immortal Slave Manual, the orderly construction of the array did prove that the old man had indeed put in the effort to master the basic knowledge of array construction.

The first half of the array construction went very smoothly, and even Lin Heng could not find any flaws.

After all, what he had just told Tian Qianchen was that the construction of this Spirit Suppressing Tower array would determine whether or not he would be included in the construction of the Cloud Oasis.

Even if Tian Qianchen really had some ulterior motives, he would definitely go all out in this formation.

Until the array construction was almost complete...

"Holy crap, old man, you've gone mad!"

After Tian Qianchen placed a stone brick, Lin Heng, who was standing next to him, kicked the stone brick that he had just placed away.

"W-what's wrong?"

Tian Qianchen stared blankly at Lin Heng.

Lin Heng stared wide-eyed and said, "You didn't know this position utilizes the rules of the Source Fire?"

"I know!"

Tian Qianchen was still bewildered: "Doesn't the Spirit Suppressing Tower Formation require guiding even more aggressive rule power?"

"Oh shit……"

Even Lin Heng, who usually prided himself on being refined, couldn't help but swear at this moment, "But you started guiding the Source Fire rules in the middle section, were you trying to blow the Spirit Suppressing Tower Formation straight into the sky?"

"Would...that be?"

"nonsense!"

Lin Heng rolled his eyes: "If you're lucky, your structure exploded before you even finished constructing it. But if you're unlucky, by the time you actually finish constructing it and put it into use, you'll have blown this whole slum to smithereens!"

"That's so exciting?!"

Tian Qianchen was greatly surprised.

"Are you sure you studied array construction in the same way you did in the Elders' Council of the General Administration?" Lin Heng looked Tian Qianchen up and down.

"Uh, it really is."

Tian Qianchen rubbed his hands together sheepishly: "The five of us elders each have a small courtyard, and of all the elders in the compound, my courtyard has been renovated the most..."

"That's not surprising..."

Lin Heng wasn't surprised at all, and remarked with a sigh, "But you old codger's health is pretty good; you've been bombed so many times and haven't gotten seriously hurt?"

"cough."

Tian Qianchen touched his nose somewhat awkwardly: "Actually, before the Demon Calendar, I was a mortal immortal with a golden spiritual root..."

"All right."

Lin Heng sighed helplessly.

"Then... I'll continue my research on basic array construction."

At this moment, Tian Qianchen's face was already flushed red.

He couldn't even complete the lower-level Spirit Suppression Tower formation, so he was too ashamed to mention participating in advanced formation construction anymore.

"Alright, we can talk about the basic array construction later. Let's go underground together to complete the array construction first."

Ok? !

Tian Qianchen stared at Lin Heng in disbelief.

Did I fail to construct the array?

"I can tell you have some basic knowledge. I'll draw you a diagram when I get back, and you can just arrange the pieces according to the diagram."

"really?!"

Tian Qianchen became excited again.

"So, are you going or not?"

Lin Heng turned around and glanced at him out of the corner of his eye.

They can't even construct a Spirit Suppressing Tower formation?

That's right, you can't build it!

A master array builder like him, who has some knowledge of array construction but is not proficient in the power of rules, is the kind of laborer Lin Heng truly needs.

After all, he didn't want some old guy to steal the special array he obtained from the Immortal Slave Manual and put it in the General Administration Office...

"Go, go, how can you not go!"

"Let me make it clear first, this array setup might take a long time, and I'll be checking it from the side the whole time."

"no problem!"

……

When Lin Heng passed by the small courtyard with Tian Qianchen, he also called Yun Qinghe into the tunnel.

But once they actually went underground and drew up a simple blueprint for Tian Qianchen, Lin Heng realized that his probing had been somewhat unnecessary.

Because, let alone Tian Qianchen, in his own words, even all the old guys in the General Administration Division probably couldn't figure out such a formation.

Finally, Tian Qianchen couldn't help but exclaim, "Only that Chaos Demon Lord could probably create such an array!"

"The Chaos Demon Lord?"

Lin Heng raised an eyebrow and subconsciously glanced at Yun Qinghe.

Yun Qinghe said softly, "Master, I've never heard of this before."

"what?"

Suddenly, Tian Qianchen quickly covered his mouth, looked up at the sky, and said, "Little teacher, I didn't say anything..."

"Elder Tian, ​​this seems to be a very important secret?"

Lin Heng smiled and said to him, "If you don't want to talk about it, that's fine. It won't affect my teaching you how to construct formations. After all, you are the esteemed Elder of the General Administration Division. If you ask me to teach you, how could I refuse...?"

"Damn it... I'm telling you, you're being unfair. Why are you resorting to moral blackmail?"

Upon hearing this, Tian Qianchen cursed and said, "Fine, fine, I figured you'd break away from Tian Shu Kingdom and establish your own territory sooner or later anyway, so I've said it. Just remember to spare my life if you really go to war with Tian Shu Kingdom!"

"Elder Tian, ​​I didn't force you." Lin Heng still maintained his smile.

After sighing, Tian Qianchen said, "This was discovered by our General Administration Elder Council many years ago. That Chaos Demon Lord... was actually the instigator who ended the Immortal Ancient Era and unveiled the prologue to the Demon Calendar Era."

"The Demon Lord who ended the Immortal Ancient Era?" Lin Heng asked curiously.

"That's right."

Tian Qianchen said, "The reason why the Immortal Realm was destroyed was because that Chaos Demon Lord constructed an array completely different from those of the Immortal and Mortal Realms, bringing disaster to the Immortal Realm..."

"These are notes that our General Administration Division discovered in the eternal resting tomb of the Five Source Immortals in recent years."

"The eternal resting place of the Five Source Immortals?"

The Tomb of Eternal Rest is actually a mausoleum built for immortals.

What truly piqued Lin Heng's curiosity was hearing the name of the Five Source Immortal Venerable once again.

Moreover, every time I hear this name, it is filled with an aura of power and mystery.

And this Five Sources Immortal Venerable...

"You mean, he's already dead?" Lin Heng asked, puzzled.

"However... Master."

At this moment, Yun Qinghe said in a low voice, "Indeed, there is very little news about the Five Source Immortal Venerable in the Immortal Realm. Even our Yunling Sect Master does not know whether he is still alive."

"But with the cultivation of the Five Elements Immortal Venerable, how could he die?"

Lin Heng was completely baffled.

The ultimate goal of cultivating immortality and becoming an immortal is simply to extend one's lifespan.

"Does the old ghost know why he died..."

Tian Qianchen was clearly only half-understanding: "Anyway, our General Security Division has already discovered his final resting place. Who the hell would dig a hole for themselves while they're still alive if they weren't mentally unstable?"

That's hard to say...

Lin Heng thought to himself.

In the world before the time travel, there were indeed people who did such things.

Of course, in this world of cultivation, digging your own grave before you die is definitely not a lucky thing.

Lin Heng then asked, "What is the relationship between the Five Sources Immortal Venerable and this Chaos Demon Lord?"

"The Chaos Demon Lord is the disciple of the Five Source Immortal Venerables, and his only disciple."

Tian Qianchen said earnestly to Lin Heng, "The reason we know that the Five Sources Immortal Venerable has a disciple named Chaos Demon Lord is because the General Administration found a notebook recording his disciple in the Five Sources Immortal Venerable's eternal resting tomb."

"The notebook not only described the Chaos Demon Lord as a rare genius in array construction, but also made predictions about what would happen to the Chaos Demon Lord afterward."

"prophecy?"

"Well, according to our General Administration's research, that notebook should be from the prosperous era of the Immortal Ancient Era, around 30,000 years ago."

Tian Qianchen nodded slowly: "But the prophecy in the Five Sources Immortal Venerable's notes is that his disciple, the Chaos Demon Lord, will completely destroy the entire Immortal Realm in the year 74242 of the Immortal Ancient Era."

Lin Heng and Yun Qinghe were both taken aback.

Let alone Lin Heng, a transmigrator who already has some understanding of this world, even a toddler who has just learned to walk knows:

The year following the year 74242 of the Immortal Ancient Era is the first year of the current Demon Calendar Era...