At the beginning of reaching the Yellow Pole Realm, the "Qi Pool" became dozens of times larger, the size of a basketball.

The true qi in the qi pool was still very rare, only a mass the size of an egg, less than one-tenth of the capacity of the qi pool.

Only by cultivating the true qi in the qi pool can he impact the next realm, the middle stage of the Yellow Extreme Realm.

Zhang Ruochen sat down cross-legged, closed his eyes, the Shenwu mark on his eyebrows opened, and began to cultivate the first layer of the "Nine Heavens Ming Emperor Sutra" "Emperor Huangjing Tian".

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

With the operation of the true qi in his body, Zhang Ruochen's body seemed to turn into a whirlpool, and began to slowly absorb the spiritual energy between heaven and earth.

The aura of heaven and earth, the imprint of Shenwu that flows into the center of the eyebrows.

The Shenwu Seal also transforms the aura of heaven and earth into true qi and stores it in the qi pool. True Qi flows out of the qi pool, along the meridians, and runs throughout the body.

True Qi runs in the body for a single week.

After running for nine weeks, 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 martial artists knew that they could double the amount of true qi in their bodies in such a short period of time, they would definitely be overjoyed.

However, Zhang Ruochen was a little dissatisfied, "After cultivating for nine weeks, I actually increased such a little bit of true qi, it's too slow! It would be nice if I could get a spirit crystal! My cultivation speed can be doubled!"

You must know that Zhang Ruochen is cultivating the Nine Heavens Ming Emperor Sutra, and the speed of absorbing true qi is originally faster than those martial artists who cultivate low-level exercises.

The current cultivation speed naturally made him very dissatisfied.

If you can use a spirit crystal, you can increase the speed of cultivation by a large margin.

Spirit crystal, which is composed of spiritual energy into a crystal.

You can not only dig the "natural spirit crystal" in the underground ore vein, but also kill the brute beast and dig up the "acquired spirit crystal" in the brute beast's body.

The value of a spirit crystal is generally equivalent to the value of a thousand silver coins, and only the nobles of the kings and grandsons, or the geniuses cultivated by the big families, have the opportunity to obtain the spirit crystals.

One thousand silver coins is definitely a huge number for the current Zhang Ruochen and Concubine Lin, and it is impossible to afford it.

"Spirit Crystal!"

Zhang Ruochen's heart moved, and he immediately took out the white jujube core-shaped spar that he had been wearing on his body and held it in the palm of his hand.

Could this be a spirit crystal?

The True Qi in his body was running, and the Divine Martial Mark on his eyebrows immediately emerged, turning into a circular halo the size of a coin.

A white true qi shot out from the center of his eyebrows and hit the white spar.

"Wow!"

On the surface of the white spar, four ancient characters emerged.

It's weird!

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

You must know that in the previous life, Zhang Ruochen also injected true qi into the white spar, but he never stimulated the words on the surface of the spar.

"In the last life, my cultivation was hundreds of times stronger than now, and I didn't let words appear on the surface of the white spar. In this life, the cultivation in the early stage of the Yellow Extreme Realm actually caused a change in the white spar. The explanation is not the cause of the strength of the true qi at all, but the cause of the attributes of the true qi. ”

For example, a martial artist with the Flame Divine Martial Mark has the best effect when using a fire attribute spirit crystal, which can reach three times the cultivation speed. Using ordinary spirit crystals, you can only reach twice the cultivation speed.

In nature, 90% of spirit crystals have no attributes. Just like ninety percent of martial artists, they can only inspire martial arts marks that have no attributes.

"Could it be that the Shenwu Seal I opened also has some kind of attribute, which just matches this space-time crystal? Wait, what is the space-time crystal?"

Zhang Ruochen was the son of Emperor Ming in his last life, and he had a wide range of knowledge, and he had heard of many attribute spirit crystals, such as Red Flame Spirit Crystal, Xuanbing Spirit Crystal, Thunder Lightning Spirit Crystal, and Evil Blood Spirit Crystal...... , however, he had never heard of the spirit crystal of the space-time attribute.

Because time and space cannot be controlled by human beings at all, even if it is a god, it cannot shake time and space, and the rules of time and space must be followed.

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

The whirlpool continued to grow, enveloping Zhang Ruochen's body.

Zhang Ruochen only felt that the sky was spinning for a while, and the next moment, he came to a confined space and fell heavily to the hard ground.

Fortunately, he completed the marrow washing and pulse flushing, and when he reached the early stage of the Yellow Extreme Realm, his body strengthened a lot. If he had used his previous fragile body, he would have fallen to his death.

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

The space is completely enclosed and no doors or windows are visible. The height of the space is about 10 meters, and the length and width are about 10 meters.

"How so? Where did I come from? Where is this? Huh! There's a stone platform there!"

In the entire space, there is only one stone platform.

On the stone platform is a rolled-up painting, a silver iron book. Other than that, there is nothing else!

Zhang Ruochen took the lead in getting the painting, but the painting was extremely heavy, as if it was connected to the stone platform, no matter how much force 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 could only 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: "The Secret Book of Time and Space!"

This time, Zhang Ruochen was prepared, and used his true qi to run his whole body, mobilized the power of his whole body, and turned the first page of the "Secret Book of Time and Space".

"So...... Easy?"

The Secret Book of Time and Space is easy to read and effortless.

Zhang Ruochen shook his head stupidly, stopped running his true qi, picked up the "Secret Book 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 a secret book of cultivation, but a record of the previous generation of the master of the space-time crystal, the "Holy Monk of Sumeru".

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

"It turns out that the Shenwu Mark I opened turned out to be the Divine Martial Mark of Time and Space. According to the Holy Monk of Sumeru, none of the hundreds of millions of people can open the Divine Martial Mark of Time and Space. From ancient times to the present, there are only two people, and I am three. ”

"The Holy Monk of Sumeru is the second person to open the Divine Seal of Time and Space, but according to the time he recorded on the Secret Book of Time and Space, 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 the present. ”

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

The speed of time flow in the inner space is completely different from that of the outside world, and after three days of cultivation in the inner space, only one day has passed in the outer space.

Zhang Ruochen was overjoyed and said excitedly: "Cultivating inside for three days, and only one day outside, wouldn't it be three times more cultivation time than others out of thin air?" ”

Zhang Ruochen wanted to flip through the second page of the Secret Archive of Time and Space, but no matter what method he used, he couldn't open the second page.

"I can't open it again. ”

Zhang Ruochen had an urge to drop the "Secret Book of Time and Space" on the ground, and suddenly, there was a line of small words in the last row of the first page he read.

"Cultivating to the small pole of the Yellow Extreme Realm and injecting true qi into the picture scroll can open the picture scroll. ”

Zhang Ruochen once again stared at the picture scroll, guessing in his heart that there must be some kind of mysterious exercise recorded in the picture scroll, maybe it was related to the cultivation time and space.

"Cultivate hard, strive to break through to the small pole position as soon as possible, but I want to see, what secrets are hidden in the picture scroll?"

The "small pole" is the fourth small realm of the Yellow Pole Realm, and then up is the middle pole, the great pole, and the great consummation.

Zhang Ruochen felt a feeling of hunger in his stomach, and he immediately temporarily withdrew from the inner space of the space-time crystal and returned to his room again.

He squeezed the space-time spar tightly in his hand, and with this spar, he had a greater certainty of cultivating to the late stage of the Yellow Extreme Realm within three months.

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

The only things I eat are white rice and steamed buns, and I don't see meat at all.

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

The other princes and county lords who had opened the Shenwu Seal ate their daily diet were "Blood Pills" refined from the blood of brute beasts, and they had long since stopped eating ordinary food.

Taking one pill of blood pill can replenish the physical exertion of the whole day, and even if you practice boxing and swordsmanship for a day, you will not feel hungry.

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

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

"Chen'er, you have now opened the Divine Martial Mark, and you can no longer eat ordinary food. 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 Concubine Lin to be able to take out ten blood pills, and said with some doubts: "Mother, five silver coins can buy one blood pill, and ten blood pills are fifty silver coins, where did you get so much money?"

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

The maid Yun'er stood behind Concubine Lin and said, "Niangniang sold her favorite step shake golden hairpin, and then went to Dan City to exchange for ten blood pills!"

Concubine Lin glared at Yun'er lightly, as if she was blaming her for being too talkative, and then said: "Chen'er, don't think too much, as long as you can cultivate into a real martial artist, even if your mother sells all the jewelry, she will support you in your cultivation." ”

Zhang Ruochen's heart was extremely moved, he squeezed the jade bottle in his hand tightly, bit his lip, and wanted to tell Concubine Lin that he had now cultivated into a real martial artist.

No, you can't.

It was too fast to open up the qi pool and complete the marrow washing and pulse flushing in just one night, and if the news accidentally leaked out, it would definitely reach the ears of other princes and queens. When the time comes, it will harm itself and Concubine Lin.

He was still too weak and needed more strength.

(WeChat attention: feitianyu5 Sina Weibo attention: Feitianyu's Weibo)