At the beginning of the Yellow Pole Realm, the "qi pool" has become dozens of times larger, as big as a basketball.

The true qi in the air pool is still very scarce, only a ball as big as an egg, less than one-tenth of the air pool capacity.

Only by fully cultivating the true qi in the Qi Pool can you impact the next realm, in the middle stage of the Huangji Realm.

Zhang Ruochen sat cross-legged, closed his eyes, opened the divine martial mark between his eyebrows, and began to practice the first level of the Nine Heavens Ming Emperor Sutra "Taihuang Huang Realm Heaven".

True qi flows out of the qi pool and flows through the whole body along the meridian that has been opened.

As the true qi in his body moved, Zhang Ruochen's body seemed to turn into a vortex and began to slowly absorb the spiritual energy between heaven and earth.

The spiritual energy of heaven and earth flows into the divine martial marks between the eyebrows.

The Shenwu Seal converts the spiritual energy of heaven and earth into true qi and stores it in the Qi pool. The true qi flows out of the Qi pool and runs along the meridians throughout the body.

If the true qi runs in the body for a circle, it will be a cycle of heaven.

After running for nine cycles, when Zhang Ruochen opened his eyes again, he found that the amount of true qi in his body had doubled, reaching one-tenth of the capacity of the qi pool.

If other warriors knew that they could double the amount of true qi in their bodies in such a short period of time, they would definitely be ecstatic.

However, Zhang Ruochen was a little dissatisfied, "I have practiced nine Zhoutians and actually increased this little true energy. It's too slow! It would be great if I could get a spiritual crystal! My cultivation speed can be doubled!" Hey! Yan! Brother

You know, Zhang Ruochen practiced the Nine Heavens Ming Emperor Sutra, and the speed of absorbing true qi was faster than that of those warriors who practiced lower-level skills.

His current cultivation speed naturally made him very dissatisfied.

If you can have a spiritual crystal, your cultivation speed can be greatly increased.

Spiritual crystals are collected from spiritual energy into crystal stones.

You can either dig "natural spirit crystals" in the underground ore veins, or kill wild beasts and dig up the "acquired spirit crystals" in the wild beasts.

The value of a spirit crystal is generally equivalent to the value of a thousand silver coins. Only the nobles of the princes and nobles, or geniuses trained by the big family, have the chance to obtain the spirit crystal.

One thousand silver coins are definitely a huge number for Zhang Ruochen and Lin Fei now, and it is impossible to afford them.

"Spirit Crystal!"

Zhang Ruochen's heart moved and immediately took out the white date-shaped crystal that had been wearing it all the time and held it in the palm of his hand.

Could this be a spiritual crystal?

As the true energy in his body circulated, the divine martial mark on his eyebrows immediately emerged and turned into a circular halo the size of a coin.

A white true energy shot out from the middle of the eyebrows and hit the white crystal.

"Wow!"

Four ancient words emerge on the surface of the white crystal.

Too weird!

Zhang Ruochen had never seen such words before, but he recognized the four words "time and space crystal" at a glance.

You should know that in the last life, Zhang Ruochen also injected true energy into the white crystal, but he never inspired the words on the surface of the crystal.

"In the last life, my cultivation level was hundreds of times stronger than now, and I did not let the words appear on the surface of the white crystal stone. In this life, my cultivation level at the beginning of the Huangji Realm actually changed the white crystal stone. It shows that it is not the reason for the strength of the true qi, but the reason for the attributes of the true qi."

For example, a warrior with the Flame Divine Martial Arts Seal has the best effect using the fire attribute spirit crystal, which can reach three times the cultivation speed. Using ordinary spirit crystals can only reach two times the cultivation speed.

In nature, ninety percent of the spirit crystals have no attributes. Just like ninety percent of the warriors, they can only inspire martial arts marks without attributes.

"Does the Divine Martial Seal I opened also have some attributes that fit the space-time crystal? Wait a minute, what is the space-time crystal?"

Zhang Ruochen was the son of Emperor Ming in his previous life. He had a wide range of knowledge and had heard of many attributes of spiritual crystals, red flame spirit crystals, black ice spirit crystals, thunder and lightning spirit crystals, and evil blood spirit crystals..., but he had never heard of spiritual crystals with time and space attributes.

Because time and space are not controlled by human power at all. Even God cannot shake time and space. It is necessary to follow the rules of time and space.

Just when Zhang Ruochen was still very puzzled, a halo appeared on the surface of the space-time crystal, turning into a vortex.

The vortex keeps growing, wrapping around Zhang Ruochen's body.

Zhang Ruochen only felt a dizzy moment. The next moment, he came to a confined space and fell heavily onto the hard ground.

Fortunately, he completed the marrow washing and rushing meridians, and reached the early stage of the Yellow Eclipse Realm, and his body strengthened a lot. If he had fallen with his previously fragile body, he would have fallen to death.

Zhang Ruochen got up from the ground, moved his painful muscles and bones, and began to observe the space around him.

This space is completely closed and there is no door or window to see. The height of the space is about ten meters, and the length and width are about ten meters.

"How could this happen? Where did I come in? Where is this? Huh! There is a stone platform there!"

There is only one stone platform in the entire space.

There was a rolled painting and a silver iron book on the stone platform. There was nothing else except that!

Zhang Ruochen took the lead in getting the painting, but the painting was extremely heavy, as if it was connected to a stone platform. No matter how much power Zhang Ruochen used, the scroll did not move at all.

Since he couldn't pick up the scroll and couldn't open it, Zhang Ruochen had to give up for the time being and then stared at the thin silver iron book.

On the surface of the silver iron book, four words are written: "Secret Book of Time and Space!"

This time, Zhang Ruochen was prepared to circulate his true energy throughout his body, mobilize all his strength, and turn the first page of the Secret Book of Time and Space.

“So…easy?”

It is very easy to read the secret book of time and space, without any effort.

Zhang Ruochen shook his head in disappointment, stopped pursuing his true energy, picked up the secret script of time and space, held it in his hand, and read it carefully.

The first page of the Secret Book of Time and Space is not recorded on the secret book of cultivation, but the transcript of the "Summer Holy Monk", the owner of the previous generation of the Time and Space Crystal.

After reading the transcript of the Sumeru Holy Monk, Zhang Ruochen finally understood everything.

"It turns out that the divine martial seal I opened was actually the divine martial seal in the space and time. According to the Sumeru Holy Monk, none of the billions of people can open the divine martial seal in the space and time. From ancient times to the present, there are only two people, and I only have three."

"The Sumeru Holy Monk is the second person to open the divine martial arts mark in the space and time. However, according to the time he recorded in the space and time secret book, he died more than 100,000 years ago. More than 100,000 years ago, it was already the Middle Ages, and it was too far away from now."

The space where Zhang Ruochen is now is the inner space of the space-time crystal.

The speed of time flow in the inner space is completely different from that in the outside world. Only one day has passed in the outer world after practicing in the inner space for three days.

Zhang Ruochen was overjoyed and said excitedly: "I have practiced for three days inside, and only one day outside has passed. Isn't it three times more time to practice than others? It's so great."

Zhang Ruochen wanted to read the second page of the Secret Book of Time and Space, but no matter what method he used, he could not turn the second page.

“It cannot be opened again.”

Zhang Ruochen had the urge to throw the secret scriptures of time and space to the ground. Suddenly, there was a line of small characters in the last row of the first page he looked at.

"Cultivate to the small pole of the Yellow Ji Realm and inject true energy into the scroll, and you can open the scroll."

Zhang Ruochen stared at the scroll again, guessing in his heart that some mysterious technique must have been recorded in the scroll, which may be related to the time and space of cultivation.

"Try to practice hard and strive to break through to the Xiaoji position as soon as possible. Let's see what secrets are hidden in the scroll?"

"Small Pole" is the fourth small realm of the Yellow Pole realm. Going up is the middle pole, the Great Pole, and the Great Perfection.

A feeling of hunger came from Zhang Ruochen's belly, and he immediately temporarily retreated from the inner space of the time and space crystal and returned to his room again.

He held the time and space crystal tightly in his hand. With this crystal, he would be more confident that he would practice to the late stage of the Yellow Episode within three months.

Zhang Ruochen, Lin Fei, and maid Yun'er sat together for breakfast.

The food I eat is just white rice and steamed buns, and there is no meat at all.

For warriors, the physical strength consumed is much greater than that of ordinary people, and what they eat is very important.

Other princes and princesses who have opened the divine martial arts mark eat "blood pills" made from the blood of wild beasts every day, and have long stopped eating ordinary food.

Taking a blood pill can replenish the energy consumption of the whole day. Even if you practice boxing and sword techniques for a day, you won’t feel hungry.

Moreover, taking the blood pill can improve blood qi, strengthen martial arts, and increase physical strength.

If Zhang Ruochen eats white rice and steamed buns, even if he eats eight meals a day, it will be far from enough for his body to consume.

"Chen'er, you have now turned on the divine martial arts mark and can't eat ordinary food anymore. You can accept these ten blood pills first. If it is not enough, my mother is thinking of other ways." Concubine Lin took out a jade bottle and handed it to Zhang Ruochen.

Zhang Ruochen was gnawing on steamed buns, and he didn't expect that Lin Fei could actually take out ten blood pills. He said with some confusion: "Mom, you can only buy one blood pill with five silver coins. Ten blood pills are fifty silver coins. Where did you get that much money?"

Concubine Lin smiled and said, "Mom always has a way."

The maid Yun'er stood behind Lin Fei and said, "The Empress sold her favorite Bu Yao golden hairpin, and then went to the Dan City to exchange for ten blood pills!"

Concubine Lin glared at Yun'er gently, as if she was blaming her for talking too much, and then said, "Chen'er, don't think too much. As long as you can cultivate into a real warrior, even if your mother sells all the accessories, she will support you in cultivation."

Zhang Ruochen was extremely moved. He tightly pinched the jade bottle in his hand and bit his lip, wanting to tell Concubine Lin that he had now cultivated into a real warrior.

No, you can't do this.

It was too fast to open the qi pool in just one night to complete the marrow washing and rushing meridians. If the news leaked out accidentally, it would definitely reach the ears of other princes and queens. At that time, it would harm herself and Concubine Lin.
Chapter completed!