Turning to the mystery of extreme wind, Chu Mu's body was surrounded by the power of the wind, making a contrast! He flew in the air in a short time.

As he was flying, Chu Mu was suddenly surrounded by a powerful and unpredictable force. He could not resist. He only felt that the scenery in front of him was quickly becoming blurred. His body could feel the repulsion of this space on him, which was very strong.

Chu Mu suddenly realized that he was leaving the Secret Realm of Shenhuang.

Although he wanted to stay for a little longer, the power of the Shenhuang Secret Realm was not something he could resist.

I don’t know how the Tianhuang Di Palace is now?

Are there fewer familiar faces and more strange faces?

This time, Chu Mu still appeared randomly in this small world.

Before he could see anything, a murderous roar came from his ears. Then, a terrifying strong wind blew, as if sharp claws were swelling, trying to tear Chu Mu into pieces.

With the consciousness moved, the sword was unsheathed, followed by instinct, and slashed out with one sword, with a sharp edge without casting,

The vision in front of me was restored, and a huge wild beast fell in a pool of blood, and its head was cut open by Chu Mu's sword, which was very miserable.

It turned out that he was teleported to a dangerous place, but fortunately it was just an intermediate dangerous place. For Chu Mu's current strength, the intermediate dangerous place could be unobstructed.

When you reach the outside world, you can fly freely, put your sword into the sheath, soar into the air, look at the direction, and shoot out with a loud bang. The speed was as fast as a stream of light passing through the sky, disappearing into the sky in the blink of an eye.

Several times the speed of sound, when Chu Mu cut through the sky for a few breaths, a strong explosion sounded in the air, which was extremely sharp.

With such a high speed, it is not difficult to return to Tianhuang sacred mountain.

Soon, Chu Mu saw the huge Tianhuang sacred mountain without much change.

When he landed at the outer palace of Tianhuang Divine Mountain, Chu Mu suddenly felt a strange feeling, as if he had not been away from here for long.

How is this possible?

You know, he has been in the Shenhuangtian Palace for more than ten years. For him, more than ten years, it is quite long.

But when Chu Mu got to know him, he was stunned.

One month!

It has only been a month since he entered the Secret Realm of Shenhuang for the second time?

How is this possible?

Could it be that the more than ten years in Shenhuangtian Palace were all fake? It was just an illusion?

For a moment, Chu Mu's thinking was a little confused, and it took him a while to sort it out.

"The time flow rate in the Shenhuangtian Palace is different from that in the outside world." In the end, Chu Mu came to this conclusion. He could only think so, otherwise it would be impossible to explain.

Although the flow rate of time is different from that of the outside world and sounds very mysterious, Chu Mu, who has seen the tide of time with his own eyes and tried the power of obsolete sand, was not surprised at all.

Really, perhaps only the power of time will cause the current gap.

Immediately afterwards, Chu Mu felt ecstatic and a burst of ecstasy.

The time spent in Shenhuang Tian Palace for more than ten years, and the time spent in Shenhuang secret realm, totaling up, the outside world only has only one month, which means that Chu Mu has more than ten years more than others, which makes his mystery make great progress.

If there is no time flow rate of Shenhuang Tiangong, Chu Mu will have to spend more than ten years in the outside world to cultivate to the current level.

Strong is really too powerful. The power of time is really terrible and unpredictable.

With excitement, Chu Mu returned to his room. His inner excitement gradually calmed down. Chu Mu took out the "Secret Record of Heart Sword" and copied it. When he obtained the "Secret Record of Heart Sword", Chu Mu once promised to hand over a copy to Lin Feng, a disciple of the outer palace of Tianhuang Di Palace. He had never done it before, but now he has to do it.

After the transcription was completed, Chu Mu left the room and looked for Lin Feng.

After all, he was the first disciple of the outer palace. As soon as the news was sent out, someone immediately helped find it. Lin Feng was quickly called to Chu Mu.

"This is what Lin Rong asked me to hand it over to you." Chu Mu handed over the original "Secret Record of Heart Sword" to Lin Feng and said directly.

Lin Feng was stunned for a moment and didn't react for a while because he had known about Lin Rong's death before.

After a while, Lin Feng took over the "Secret Record of the Heart Sword", performed a sword salute to Chu Mu, and turned around and left without saying a word.

Chu Mu didn't say anything, but he had a small cause and effect and no longer had any worries.

As for whether Lin Feng can practice "The Secret Record of Heart Sword", it is not within Chu Mu's responsibility. It is Lin Feng's own ability to practice and practice. Of course, if he practices, then Lin Feng's fate may change some things, and he will embark on the path of a strong man.

Otherwise, according to Lin Feng's current talent, he could only be the dominant one among ordinary swordsmen.

Time is tight, and after handing over the "Secret Record of Heart Sword" to Lin Feng, Chu Mu rented a seclusion room again and planned to go into seclusion again.

In the seclusion secret room, Chu Mu took out the compass of the time and then took out the sand of the intermediate time.

Theoretically, the intermediate-level sand must be withstood by the Divine Condensation Realm Sword. In fact, it means that you must have the power of divine thoughts and a strong enough body to withstand the power of time passing.

Chu Mu's cultivation level is still in the Yuanji realm, but he has the power of divine thoughts. The Tianhuang sword body has also reached the middle and late stage of the third level, and belongs to the level of the swordsman in the Divine Condensation Realm, which is enough to withstand the power of the intermediate-level time sand.

The time flow rate of low-level sand is twice, and the time sand is doubled again, which is equivalent to four times.

There are 68 pieces of intermediate time sand in total, and you can use the time compass six times. Calculate the time compass in one month. The time compass inlaid with the intermediate time sand will provide Chu Mu with the actual time of forty-one months.

Six times are equivalent to half a year. In total, the actual time is 246 months, which is more than twenty years.

"Twenty years should be enough for me to temper all the mysteries to the limit of nine turns." Chu Mu said in his heart, feeling very excited.

Twenty years have passed, but in fact, the outside world has only been half a year.

To calm down, Chu Mu inlaid ten intermediate sands of time into the compass of time, and activated the compass of time. A strange force enveloped Chu Mu's whole body, as if it was isolating him from the outside world.

This feeling is very strange, as if it is isolated and common.

Time is precious, Chu Mu will not waste any of it, and will be tempered immediately.

The mystery of clouds, the mystery of ice and the mystery of thunder are currently in the late stage of the eighth turn, while the mystery of hollow has reached the middle stage of the fifth turn, and the Yinsha crystal is consumed in large quantities, and there is not much inventory now. Chu Mu only hopes that before the Yinsha crystal is consumed, the mystery of clouds, the mystery of thunder, and the mystery of hollow are tempered to the limit of the nine-turn before the Yinsha crystal is consumed.

Be the first to temper the mystery of clouds.

Time in the outside world passes slowly, and time under the compass of time passes by quickly, and the mystery of clouds is being refined bit by bit.

Finally, the mystery of cloud reached the limit of eight revolutions, and then broke through the shackles and reached the early stage of nine revolutions, as if entering a new world.

The tempering of the secret meaning makes each revolution different in the improvement, especially in the later stage, the difference between each revolution is obvious.

Tempering and tempering, uninterrupted tempering, lacking the increase of Shenhuangtian Palace, the efficiency of tempering has decreased, but fortunately enough time.

When the power of the intermediate sand was consumed by eight or nine times, the mystery of cloud finally reached the limit of nine revolutions. Chu Mu immediately transferred and actively tempered the mystery of ice.

At this time, the mystery of ice has also reached the limit of eight revolutions under the natural tempering of Yinsha crystal power, and the secret of thunder has also reached the limit of eight revolutions.

After a period of time, the mystery of ice successfully broke through, reaching the early stage of the Nine Revolutions, and then, under tempering, continuous progress.

This time, the power of the intermediate sand in the first round was exhausted, and Chu Mu immediately embedded in the second wave. When the power of the second wave of the sand was consumed by about eight tenths, the mystery of ice finally reached the limit of the nine-turns, and the mystery of thunder at this time naturally reached the early stage of the nine-turns. Although it was only the early stage of the nine-turns, it was very unstable, but at least it broke through to the nine-turns, which was completely different.

Continue to temper. Although there are many mysteries, the efficiency will continue to decrease until the end. However, when actively tempering one mystery, other mysteries will be tempered by Yinsha crystals, and gradually improve the purity. The next time you temper, you will also save some time.

The third wave of intermediate-level sand power was also constantly consumed, almost nine-tenths of which was consumed. The mystery of thunder was finally tempered to the limit of the nine-turn.

In the end, only the mystery of emptiness is left.

The mystery of hollow is the most difficult to temper, and its power is also the most powerful of Chu Mu's various mystery.

The three intermediate sand of time is almost three wheels. In the outside world, the time barrier of the compass of the time is almost more than ten years. After natural tempering, the progress of the mystery of the empty is also obvious, from the original mid-stage of the fifth-turn to the current limit of the sixth-turn.

Take out the Yinsha crystal and suck it into the spiritual world. The other secrets have reached the limit of the Nine-turn. There is no need to consume the power of the Yinsha crystal. All the secrets of the Nine-turn Heavenly Shaking Seal are used and actively tempered with the powerful divine power.

This is the first time Chu Mu took the initiative to temper the mystery of emptiness. Once he tempered it, he immediately felt the difficulties.

Tempering the secret of the empty meaning of the six-turn limit makes it feel like tempering other secret meanings of the eight-turn level.

Fortunately, the time barrier between the Sand of Time and the Compass of Time is there, otherwise, it may take a hundred years to temper all the mysteries to the limit.

Under the time barrier, the mystery of hollow finally broke through to the early stage of the seventh revolve. The intermediate sand of time in the fourth round was once again embedded in the compass of time and continued to be tempered. The Yinsha crystal was also consumed in large quantities, and there was not much left, which made Chu Mu a little worried.
Chapter completed!