With the Huangtian Houtu Sutra as his backing, he could freely practice the Inquiry Heart Blade Art.
The Inquiry Heart Blade Art was now his most powerful unique skill.
If he could overcome the problem of unrecoverable energy consumption, then there would be no problem.
He could finally practice the Inquiry Heart Blade Art over and over again, constantly adjusting and improving.
He unleashed a blade.
"Bang!" A piece of bluestone from the artificial mountain outside the window shattered into fragments.
He circulated the Huangtian Houtu Sutra, the Tianyuan Art, and the Diyuan Art once.
Then, he shot out another blade.
"Poof!" Another piece of bluestone on the artificial mountain cracked into fragments.
He circulated the Huangtian Houtu Sutra, the Tianyuan Art, and the Diyuan Art again.
Then, he combined the two blades into the Hidden Blade.
"!" All the bluestones on the artificial mountain looked normal, but a gust of wind blew, and one of the small bluestones turned into dust and fluttered away.
Chu Zhiyuan's face was as pale as paper, and he swayed unsteadily.
He hurriedly circulated the Tianyuan Art first, then the Diyuan Art, and finally the Huangtian Houtu Sutra.
After recovering his energy and spirit, he breathed a sigh of relief.
The consumption of this Hidden Blade was too intense, far exceeding the Day Blade and Night Blade, almost draining him dry and causing him to faint.
He decided to rest well.
Practicing the three blades was like practicing the Three Hundred Swords Great Snow Avalanche Sword Art.
He sat on the couch and began to ponder the differences between the three blades.
The Day Blade was overbearing and vigorous, with astonishing power.
The Night Blade was gentle and silent, with slightly weaker power, but it excelled in being hidden and unpredictable.
The Hidden Blade annihilated invisibly, and its power was even stronger.
But the disadvantage of the Hidden Blade was its excessive consumption, almost instantly draining him dry, making it a suicidal move.
However, the Hidden Blade was formless and traceless, impossible to defend against, and almost always hit its target.
The world actually had such a blade technique.
If this was the inheritance of Wentian Cliff, then Wentian Cliff was indeed terrifying.
The Hidden Blade could kill people invisibly, so did Wentian Cliff only have the inheritance of the Inquiry Heart Blade? Were there higher and stronger inheritances?
No wonder the martial arts of Wentian Cliff had never been clarified by the Surveillance Department, and even its name was unknown. How many people in the world knew about the Inquiry Heart Blade Art?
If Cheng Tianfeng had also mastered this blade, then he was truly fortunate that it was in a competition, that it was at the palace banquet.
He didn't expect Cheng Tianfeng to not have mastered the Inquiry Heart Blade Art.
He had the Tianyuan Art to replenish his spirit, the Diyuan Art to replenish his energy, and the Huangtian Houtu Sutra to replenish his essence, allowing him to practice the Inquiry Heart Blade Art over and over again.
But Cheng Tianfeng might have elixirs that could replenish all three, allowing him to practice over and over again and eventually master it.
In Da Jing, even the heir had to earn merit to exchange for cultivation resources, but it was not the same in Da Zhen's Wentian Cliff.
As a disciple of the national preceptor, a true inheritor of Wentian Cliff, and the heir with the best aptitude in Da Zhen, it was not surprising that elixirs were supplied openly.
He touched the two Inquiry Heart Blades, feeling extremely fortunate.
Fortunately, he had taken advantage of the situation when he made his move, and fortunately, he had obtained the Qionghua Nine Chapters Record in the True One Sect, which stimulated the Inquiry Heart Blade Art.
It seemed that there was a big hand arranging things in the dark.
This was luck!
He truly had great luck.
Reincarnation, super-sense, heir, which one could be obtained without great luck?
"Zou Fang, you throw pebbles, and I'll shoot."
"Yes."
"!" A small piece of bluestone was shot into the air.
"Too slow!"
"Yes."
"!!" A small bluestone whistled through the air.
"Faster!"
"Yes."
"— —!" A small bluestone flashed in the air.
"Bang!" A white light flashed, and the small bluestone shattered.
Chu Zhiyuan formed hand seals, almost simultaneously circulating the three arts. After recovering for a while, he said in a deep voice: "Again."
"Poof!" A black light flashed, and the small bluestone split into four pieces.
At noon, he returned to the Qing Prince's Mansion for lunch.
While strolling leisurely among the bustling crowd, he still carried the Flying Dragon Bone in his hand, wore the Flying Dragon Pearl, and the Transforming Dragon Art was surging.
Returning to the Prince's Mansion, he found Li Suyue there during lunch.
"Hehe, Brother, Sister Li isn't leaving at noon today. She's eating with us," Chu Yi came over and grabbed his arm.
Chu Zhiyuan looked at Li Suyue, who bowed and lowered her head, and smiled: "Welcome, Miss Suyue. How is Elder Lu doing recently?"
He knew how to get along with Li Suyue, how to get Li Suyue to speak.
Just mention Lu Wan.
Hearing him ask about her master, Li Suyue hurriedly raised her blushing cheeks and said softly, suppressing her shyness: "Master has started closed-door cultivation today."
"Oh, going into seclusion? Did she have some insights and want to study to enter the Grandmaster realm?"
"Master said she is still very far from the Grandmaster realm and wants to break through to the Seventh Heaven."
"The Seventh Heaven is already amazing," Chu Zhiyuan sighed.
The Grandmaster Nine Heavens, why is it called the Nine Heavens? It is because it is as difficult as ascending to heaven. Don't look at so many Grandmasters in the palace and Yujing, but very few truly reach the Seventh Heaven.
The last three Heavens are as difficult as going from the Acquired realm to the Grandmaster realm, or even more difficult.
Li Suyue nodded gently.
"Brother, I've already mastered the Minor Returning Origin Step. I can practice the Major Returning Origin Step!"
"Far from it. First, walk for an hour in one breath before talking about it."
"I can walk for half an hour now."
"Then you haven't practiced it well. Keep practicing."
"Can't I learn the Major Returning Origin Step first?"
"If you don't practice the Minor Returning Origin Step well, you won't be able to walk through the Major Returning Origin Step once. Don't aim too high."
"Okay," Chu Yi said helplessly: "Sister Li's Flying Flower Plucking Leaf Step is also very beautiful. It's perfect for us to practice together."
The Flying Flower Plucking Leaf Step also looks like dancing, light and graceful. Walking with the Minor Returning Origin Step is like butterflies in love with flowers, very interesting.
Chu Zhiyuan glanced at Li Suyue and smiled: "Then you practice together. Miss Suyue can learn the Minor Returning Origin Step."
"This—" Li Suyue hesitated.
Learning other people's martial arts is a big taboo.
Chu Zhiyuan said: "This Minor Returning Origin Step is a method of cultivating stillness in motion, cultivating Qi in motion. It is a supplement to the Qi cultivation method. You can try it."
"Thank you, Heir," Li Suyue stood up and cupped her fists in salute.
Chu Zhiyuan smiled and returned the salute with cupped fists.
Cultivating Qi in stillness often consumes the spirit and cannot last too long, while cultivating Qi in motion restores the spirit through the acceleration of blood Qi, which can maintain Qi cultivation for a longer time.
Li Suyue's personality is quiet and she prefers stillness to movement, which is more suitable for practicing this method and will have miraculous effects.
These were all things he naturally understood after reading more books and referring to his super-sense.
There were only Chu Yi, Li Suyue, and Chu Zhiyuan for lunch.
Chu Minghou went to the Xuan Prince's Mansion, and Bai Ningshuang accompanied Consort Rou in the palace for lunch, so there were only the three of them for lunch.
Chu Zhiyuan simply let Chu Yi and Li Suyue eat together. He returned to Listening Waves Courtyard alone and had Mo Yi and the four maids bring lunch for him to eat alone.
Even while eating, he still carried the Flying Dragon Bone in one hand and wore the Flying Dragon Pearl on his chest, allowing the Transforming Dragon Art to surge and absorb the aura in the bone.
As the gold color of the bones became richer, the speed of absorbing the aura of the Dragon Bone accelerated.
Only a day and a night after the third Flying Dragon Bone was absorbed, the fourth Flying Dragon Bone had turned into white jade, and he began to absorb the fifth Flying Dragon Bone.
After lunch, he practiced the flying blade for a while, without urging it with the mind art, only pursuing accuracy, wanting to form muscle memory, achieving precision without error, without a trace of deviation.
During this process, his left hand still carried the Flying Dragon Bone, allowing the Transforming Dragon Art to surge.
In the afternoon, he decided to leave the mansion.
At this stage, he had to first perfect the third layer of the Transforming Dragon Art, and he didn't need to sit on the couch to cultivate specifically.
Wearing the Flying Dragon Pearl and carrying the Flying Dragon Bone, even sitting in the yamen dealing with affairs was no different from sitting on the couch to cultivate.
Chu Zhiyuan of the Surveillance Department sat upright behind the desk in a room and smiled: "Lord Ma, can I still look at the files of the Surveillance Department now?"
Ma Tianhe had a flattering smile on his face: "Your Highness, this humble one has not received any information saying that Your Highness cannot continue to view the files in the department."
Chu Zhiyuan smiled and said: "Maybe the imperial grandfather forgot."
This was a great thing.
The information of the Surveillance Department was incomparable to other places, both complete and secret.
Even if there was nothing particularly important, sitting in the Surveillance Department could make him spend a day without feeling tired or bored.
Every piece of information contained rich information, worth pondering and worth scrutinizing, the so-called seeing the world from a drop of water, and observing autumn from a leaf.
Chu Zhiyuan picked up the file on the table and casually opened it: "Did those two guys gain anything?"
"They have already captured two superiors," Ma Tianhe said excitedly: "Your Highness has made a great contribution again, congratulations to Your Highness!
"What about further up?"
"Still investigating," Ma Tianhe said: "There is hope to catch a higher level of spies, that would be an even greater contribution!"
Chu Zhiyuan nodded with a smile: "Then continue."
Ma Tianhe smiled and said: "Everyone is working hard now."