Ge Bai's previous speculation was not wrong. Once the Blood Dao Cloud Sea becomes difficult to maintain its strength, the Cloud Sea that Chu Nan painstakingly crafted might face the risk of collapse, or even self-destruction.

Currently, using the Blood Dao Cloud Sea as the core is just something Chu Nan had to do out of necessity.

What Chu Nan hopes for is to find a way for all Cloud Seas to balance each other, depend on each other, and integrate with each other, rather than the current method of using one Dao to control myriad Daos.

"Chu Nan, your Blood Dao Cloud Sea is indeed peculiar; even if placed in the Endless Sky Sword Sect, it would be exceptionally powerful!"

"More importantly, your Cloud Sea harbors an unimaginable potential for growth, so much so that even I cannot estimate to what extent your Cloud Sea can develop."

Lu Yao sat gracefully in front of Chu Nan, and seeing him stabilize his cultivation, couldn't help but praise him.

During this period, she and Chu Nan have been studying the Cloud Sea Record and the Method of All Rivers Returning to the Sea every day to research a new method to craft a brand-new Cloud Sea.

They ultimately temporarily crafted this strongest Cloud Sea with unlimited possibilities centered around the Blood Dao Cloud Sea!

But this Cloud Sea is only in its initial form, and it still needs cultivation and refinement; even Lu Yao cannot predict what it might become.

"All thanks to the wisdom of my senior; if it were up to me alone, I would never be able to craft such a Cloud Sea in my lifetime." Chu Nan said sincerely, with not a hint of modesty.

After all, Chu Nan's level in the Martial Dao is greatly inferior to Lu Yao's in both state and vision.

Though he had ideas, he could hardly reach this point alone; without Lu Yao's guidance, Chu Nan's best outcome would be to craft a very powerful Blood Dao Cloud Sea, at most possessing the third-tier combat power of the Cloud Sea Realm.

Lu Yao did not object to this and did not deny it.

"Chu Nan, this is for you." Lu Yao waved her long sleeve, and a quaint book landed in front of Chu Nan.

Chu Nan looked at it closely and immediately showed a strange expression, exclaiming, "This is... the Nine Secret Changeng Strategy?"

Lu Yao gently nodded her head and then said, "I found this method on the corpse of the clone of Hai Wujie after cutting him down."

It suddenly dawned on Chu Nan that Ge Bai was the Hall Master of the Desolate Ancient Holy Hall, and Hai Wujie was one of the Hall Masters of the Desolate Ancient Holy Hall.

Ge Bai bid for the Nine Secret Changeng Strategy and did not keep it for himself but gave it to Hai Wujie.

After obtaining the Nine Secret Changeng Strategy, Hai Wujie came to the Demon Blood Pavilion, where he encountered Lu Yao and was killed by her; thus the Nine Secret Changeng Strategy was taken away.

In the end, it went full circle and fell into Chu Nan's hands.

Chu Nan originally planned to use the Nine Secret Changeng Strategy to cultivate gentle spiritual power and balance the different attributes of the Cloud Sea in his body.

But now that Chu Nan has already made a breakthrough, the Nine Secret Changeng Strategy is of no use anymore.

Chu Nan feels that only when himself reaches the ninth tier of the Cloud Sea Realm will he be able to use it, and maybe by then, he will be able to find a better Cultivation Method of the Ninth Heaven.

"As one of the oldest powers in the lower realm, the Desolate Ancient Holy Hall must have more than a few Ninth Heaven Cultivation Methods."

"Hai Wujie had long reached the Sixth Heaven level, so why was he willing to spend five hundred thousand yuan stones to buy such an ordinary Ninth Heaven Secret Technique?"

Being a Ninth Heaven Secret Technique auctioned off by the Zhi Family, it was definitely not a very exceptional Secret Technique, and Chu Nan fell into puzzlement at this thought.

Lu Yao nodded silently, very satisfied with Chu Nan's keen insight.

Chu Nan then fixed his gaze on Lu Yao and said, "Senior, you gave me this Nine Secret Changeng Strategy; is there some hidden secret in this method?"

At her peak, Lu Yao is even more formidable than the Unification Realm above Cloud Sea Realm; for a Secret Technique brought personally by her, it must have something extraordinary.

Sure enough, Lu Yao gently nodded and then said, "Do you know the Nine Secrets?"

"The Nine Secrets?" Chu Nan looked perplexed, a sense of confusion arising in his heart.

He's been cultivating for quite some time and is accompanied by Kui Guang, who once split the Celestial Crossing Realm with a sword, yet he's never heard of what these Nine Secrets are.

Chu Nan showed a curious expression and said, "I am unaware, I implore my senior to enlighten me."

"It's said that at the dawn of our world, nine great ancestors were born to this world; they were the earliest beings and were naturally endowed with the power to reverse the cosmos."

"Once, all beings in the lower realm were considered descendants of the nine great ancestors, and these nine great ancestors were collectively called the Nine Desolates by later generations."

Chu Nan's heart shook; his Cultivation Technique is named the Desolate Profound Transformation Sutra, capable of absorbing demon beast essence blood to enhance cultivation and even devouring ancestral bloodlines to wield extraordinary power.

But according to Lu Yao, if all beings are descendants of the Nine Desolates, does that not mean ancestral bloodlines are everywhere?

But quickly, Chu Nan denied this supposition.

The Nine Desolates were the earliest beings in this world, but that doesn't mean they were the only ones; perhaps after the Nine Desolates, many other forms of life emerged in the lower realm, possibly including the Human Race.

Yet the mightiness of the ancestral beings is undeniable; Chu Nan has the clearest understanding of this.

He reached his current state, possessing the power to slay a fourth-tier Cloud Sea, largely thanks to the Desolate Profound Transformation Sutra, in which the ancestral bloodline plays an indispensable role.

Even Chu Nan must admit that without the ancestral bloodline, he would have had a hard time stepping into the Cloud Sea from the Martial Dao in less than a year!

"Then what are the Nine Secrets?" Chu Nan asked, expressing his inner confusion.

Lu Yao then said, "According to the ancient books of the Endless Sky Sword Sect, the Nine Desolates once ruled the world, and all beings dared not disobey; only our Human Race refused to be enslaved, contemplating itself to unlock the nine great secret caches within, defeating the Nine Desolates to become the rulers of the three realms!"

"These nine great secret caches are the Nine Secrets of the Human Race!"

Lu Yao then shook her head again and said, "However, unlocking the Nine Secrets of the human body is extremely difficult; even in the Endless Sky Sword Sect, there are very few who can unlock the Nine Secrets."

"To unlock even one of the Nine Secrets could cause an earth-shattering transformation in a Martial Artist; unlocking all Nine Secrets is an unimaginable terror power."

"Through the ages, fewer than ten have ever unlocked the Nine Secrets, and without exception, they are the paragons of the Human Race!"

Chu Nan's mind roiled; the cultivation of the Human Race is already exceedingly difficult, and he never expected such secrets to be hidden.

What kind of spectacle is unlocking all Nine Secrets; even he could not help but feel stirred at this moment.

His gaze fell back on the Nine Secret Changeng Strategy, exclaiming in shock, "Could it be that the Nine Secret Changeng Strategy can unlock all Nine Secrets?"

Lu Yao nodded and then quickly shook her head, saying, "How could this method unlock all Nine Secrets? In truth, it can only unlock one of the Nine Secrets, and even that is only a slight possibility."

"The Zhi Family Martial Artist did not recognize its worth, thinking the Nine Secret Changeng Strategy was an ordinary Ninth Heaven Secret Technique, unaware that it contains one of our Human Race's secret caches!"

Chu Nan clutched the Nine Secret Changeng Strategy tightly, feeling excitement yet a twinge of worry.

"The Desolate Ancient Holy Hall, as one of the oldest forces in the Celestial Crossing Realm, must know the importance of the Nine Secrets, which is why they spared no expense to obtain it."

"Now that it has fallen into my hands, the Desolate Ancient Holy Hall will not let it go lightly!"

At this point, Lu Yao gave Chu Nan a meaningful look and asked, "Do you plan to abandon it?"

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