She opened her mouth and said to Yun Xi: "You go back to practice first!"

"Yes, Master!"

Yun Xi nodded, then turned around and went back to practice.

At this moment, Ling Feng, who was training in the Sky City on Cangqiong Island, had already refined all the bones in the incense burner.

"I wonder if there will be anything left in this incense burner!"

Lingfeng summoned the incense burner and then opened it.

When he opened the incense burner, he found that there was a lot of gray liquid at the bottom of the incense burner, which looked a little strange.

Lingfeng poured out a drop of gray liquid and held it with his true energy.

This drop of gray liquid appeared gray-white under the light. Ling Feng seemed to be able to see countless tiny runes entwining in the liquid.

After observing carefully for a while, Ling Feng discovered that the gray-white liquid from the remains was different from all the spiritual liquids refined by the incense burner before.

"I wonder what this liquid does?"

Ling Feng stared at the drop of liquid floating in the palm of his hand and thought secretly in his heart.

Immediately afterwards, Ling Feng began to study the gray-white spiritual liquid.

He licked the gray-white spiritual liquid with the tip of his tongue, and immediately felt as if the tip of his tongue had been burned by something. It felt very painful.

The pain on the tip of his tongue made Lingfeng shiver.

He immediately ran the body refining technique, and he felt a trace of heat begin to spread from the tip of his tongue.

Under the influence of this heat flow, he felt that his acupuncture points seemed to become active immediately.

After a while, the heat flow in the body disappeared. Ling Feng opened his eyes and a smile appeared on the corner of his mouth: "This gray-white spiritual liquid has a strong body-refining effect. This body-refining effect is even more powerful than the previous body-tempering spiritual liquid."

Powerful, it is a more advanced body-tempering spiritual fluid!"

Ling Feng took out a piece of broken bone in the bubble, and then carefully observed the broken bone. Finally, he found that although the broken bone looked broken on the surface, it still contained a trace of special energy inside.

Ling Feng cannot absorb these special energies directly, but after being refined by the incense burner, they can be turned into special spiritual liquid, which is absorbed by Ling Feng.

"These residual bones should be left behind by those who died in the ancient times. The way of heaven in the ancient times is different from the way of heaven today. The spiritual energy absorbed by these creatures in the ancient times and the power of rules contained in it are also different from those of today.

It’s different! Even if I use an incense burner to refine the bones of monsters or practitioners from the Fairy and Demon Continent, I will definitely not get this special gray spirit liquid!"

Ling Feng thought secretly in his heart.

He also knew that the sea of ​​bones outside the Sky City was left over from a special period.

So these residual bones contain special energy.

That is to say, he has the incense burner so that he can treat these bones as treasures.

Without the incense burner, these bones would be just a pile of useless garbage in Ling Feng's eyes.

"The body-tempering effect of this spiritual liquid is too overbearing. Even I have to dilute it at least ten times before I dare to take it directly. Those practitioners whose physical fitness is only at the seventh level must at least dilute it if they want to take it directly.

A hundred times, from now on, this kind of spirit liquid will be called bone spirit liquid!"

I was thinking secretly in my heart.

He took out some jars and filled the gray bone spirit liquid. Then, he mixed the bone spirit liquid with the body tempering spirit liquid and began to dilute it.

After being diluted ten times with the body-tempering spiritual liquid, Ling Feng dared to take the mixed spiritual liquid directly.

After taking the diluted Bone Spirit Liquid, Lingfeng felt that his physical fitness was rapidly becoming stronger with the help of the Bone Spirit Liquid.

Previously, Ling Feng's physical fitness had reached the primary stage of the eighth transformation. Such a powerful physical state was almost comparable to those of powerful people.

The physical realm of many powerful people is the eighth transformation realm.

And Ling Feng has already reached the elementary level of the eighth transformation in the Dao Ancestor realm, which is already very powerful.

"With the help of this bone spirit liquid, my physical fitness should be able to break through to the intermediate level of the eighth transformation within a month!"

Ling Feng felt a little excited. He also knew that after reaching the eighth change of physical fitness, it would be even more difficult for him to advance to a smaller level.

After practicing with the jade spirit liquid for a while, he suddenly remembered his own soul.

"I don't know what's going on with my soul?"

Muttering in his heart, Ling Feng immediately tried to contact his soul.

The next moment, he felt that he had regained contact with his soul.

"Buzz buzz buzz!"

Behind him, a total of six Tianhe appeared.

At the same time, Ling Feng felt a surging Tianyuan power pouring into his body from the river.

A huge amount of information emerged in his mind, which was all transmitted back by the Yuanshen in the ancient Tianyuan world.

"this?"

After digesting the information sent back by Yuanshen, a look of shock appeared on Ling Feng's face.

He didn't expect that his soul would actually have an epiphany.

After Hu Yanhua, the peak master of Lingwu Peak, took him to see the master of Yinwu Sect, so many things happened.

"Immortal body, age of gods..." Ling Feng was also shocked by the information that his soul learned during this period.

But what shocked him the most was that after his sudden enlightenment, his cultivation level actually jumped directly from the fourth level of Dao Ancestor to the sixth level of Dao Ancestor.

"I wonder what level my current strength has reached?"

Ling Feng thought secretly in his heart.

But now that he is in the Sky City, he does not dare to test with all his strength, because he is afraid that if he tests with all his strength, he will damage the Sky City.

"Forget it, no one is threatening me now, I'll just hide here and practice for a while first!"

A sneer appeared on the corner of Ling Feng's mouth, then he closed his eyes, fully cooperated with the Yuan Shen in the ancient Tianyuan world, and began to integrate the skills that the Yuan Shen had obtained in the Hidden Mist Sect.

It took a full day for Ling Feng to complete the integration of those techniques.

But in the ancient Tianyuan world, ten days have passed.

"I still need my help. Without my help, I won't be able to integrate these techniques even if I spend ten years!"

Ling Feng sighed secretly in his heart.

Then he tried to practice the Hunyuan Qi Refining Technique, the Hunyuan Body Refining Technique, and the Soul Refining Technique that combined these techniques.

After practicing, Ling Feng found that the efficiency of the three major techniques was at least doubled compared to before.

This improvement is still quite large.

"It can actually be improved so much. I wonder how much my three major techniques will be improved if I can obtain those techniques collected in the treasury of the four major divine kingdoms in the ancient Tianyuan world?

Can I directly summon the Book of Heaven at that time?"

Ling Feng thought secretly in his heart.

He practiced the Hunyuan Body Refining Technique, Hunyuan Qi Refining Technique, and Soul Technique. The main techniques came from the Body Book, Qi Book, and Soul Code.

Rumor has it that as long as you practice the techniques inherited in these heavenly books to a very high level, you can summon the heavenly books and even control the heavenly books.

The Heavenly Book is one of the top magic weapons of the human race so far. Back then, the human race had nine heavenly books and dominated the Immortal and Demon Continent.

The Book of Heaven is the top treasure that countless human practitioners dream of.

It's a pity that Ling Feng has never seen the true appearance of any heavenly book until now.

Since the ancient war, of the nine heavenly books of the human race, only the Tishu and the Wuluo heavenly books have been passed down, while the other seven heavenly books have disappeared.

"I don't know how powerful the power of that day's book is!

"Ling Feng shook his head and sighed, then left the secret room and went to find Nangong Ziyue, Lu Wuji, Lu Wushuang, and the red snake girl.

He planned to teach the latest Hunyuan Qi Refining Technique, Hunyuan Body Refining Technique, and Soul Technique he had obtained to Nangong Ziyue and the others, as well as the bone spirit liquid.
Chapter completed!