The mystery of the nine-turn extreme wind, Chu Duan's body, entangled with the force of the wind, set off him to fly in the sky in a short time.

Flying and flying, suddenly Chu Duan was wrapped in a powerful and unpredictable force, unable to resist, only felt that the scenery in front of him was rapidly becoming blurred, and his body could feel the rejection of himself in this space, which was very strong.

Chu Duan suddenly reacted, he was leaving the Divine Desolate Secret Realm.

Although he wanted to stay longer, the power of the Divine Desolate Secret Realm was not something he could resist.

I don't know what happened to the current Heavenly Desolate Palace?

Whether there are fewer familiar faces and more unfamiliar faces.

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

Before he could see anything, there was a murderous roar in his ears, and then a terrible wind struck, sharp and amazing, as if with sharp claws to rip Chu Duan to pieces.

As soon as the consciousness moved, the sword came out of the sheath, and following the instinct, a sword slashed out, sharp and uncast, and slashed.

The vision in front of him recovered, and a huge desolate beast fell in a pool of blood, and its head was cut open by Chu Duan's sword, which was very miserable.

It turned out that he was teleported into a dangerous place, but fortunately it was only an intermediate dangerous place, and for Chu Duan's current strength, the intermediate dangerous land could be unimpeded.

When you reach the outside world, you can fly freely, put your sword into the sheath, take off in the air, look at the direction, boom, shoot out, the speed is extremely fast, like a streamer across the sky, disappearing into the sky in the blink of an eye.

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

At such a high speed, it is not difficult to return to the Heavenly Desolate Divine Mountain.

After a while, Chu Duan saw the huge Heavenly Desolate Divine Mountain, and there was no change.

Descend to the outer palace of the Heavenly Desolate God Mountain. Chu Duan suddenly had a strange feeling, as if he hadn't been away from here for long.

How is this possible?

You must know that Lu Dao is in the Divine Desolate Heavenly Palace, but he has been in the Divine Desolate Heavenly Palace for more than ten years, and more than ten years is also quite a long time for him.

But when Chu Duan understood, he was stunned.

One month!

From the second time he entered the Divine Desolate Secret Realm to now, it was only the past month?

How is this possible?

Could it be that the more than ten years in the Divine Desolate Heavenly Palace were all fake? Just an illusion?

Time. Chu Duan's thinking was a little confused, and it took a while before it was straightened out.

"The speed of time in the Divine Desolate Heavenly Palace is different from the outside world. In the end, Chu Duan came to this conclusion, he could only think so, otherwise he couldn't explain it.

Although the speed of time is different from the outside world, it sounds very mysterious, but I have seen the tide of time with my own eyes. Chu Duan, who personally tried the outdated sand power, was not surprised at all.

Really, perhaps only the force of time will cause today's gap.

Immediately after, Chu Duan felt ecstatic. A burst of ecstasy.

The time spent in the Divine Desolate Heavenly Palace for more than ten years, and then counting the time spent in the Divine Desolate Secret Realm, adds up to a total of only one month in the outside world. It is equivalent to Chu Duan having more than ten years more than others than others, so that all kinds of mysteries have made great progress.

If there is no time flow speed of the Divine Desolate Heavenly Palace, it is in the outside world. Chu Duan would have to spend more than ten years to be able to cultivate to the point where he is now.

Strong, it's too powerful, and the power of time is really terrifying, unpredictable.

With excitement, Chu Duan returned to his room, the excitement in his heart gradually calmed down, Chu Duan took out the "Heart Sword Secret Record" and copied it, when he got the "Heart Sword Secret Record" Chu Duan had promised to hand over a copy to Lin Feng, the outer palace disciple of the Heavenly Desolate Earth Palace, but he had not done it before, and now, he had to do it.

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

Anyway, he was also the first disciple of the outer palace, as soon as the news came out, someone immediately helped to find it, and Lin Feng was soon called to Chu Duan.

"This is what Lin Rong entrusted me to hand over to you. Chu Duan handed out the original "Heart Sword Secret Record" to Lin Feng and said directly.

Lin Feng was stunned for a moment, and he didn't react for a while, because he had already known the news of Lin Rong's death before.

After a while, Lin Feng took the "Heart Sword Secret Record", saluted Chu Duan, and turned to leave without saying a word.

Chu Duan didn't say anything, but there was a small cause and effect, and there was no more concern.

As for whether Lin Feng can practice the "Heart Sword Secret Record", it is not within Chu Duan's responsibility, whether he can practice or not is Lin Feng's own ability, of course, if he succeeds, then Lin Feng's fate may change some because of this, and he will embark on the road of being strong.

Otherwise, according to Lin Feng's current talent, he would only be able to dominate among ordinary swordsmen.

Time was pressing, and after handing over the "Heart Sword Secret Record" to Lin Feng, Chu Duan rented a retreat room again, intending to retreat again.

In the retreat room, Chu Duan took out the compass of time, and then took out the intermediate sand of time.

Theoretically, the intermediate sand of time can only be withstood by a Divine Condensation Realm sword, but in fact, it means that it requires the power of divine thoughts and a body strong enough to withstand the power of the passage of time.

Chu Duan's cultivation is still in the Yuan Extreme Realm, but he has the power of divine thoughts, and the Heavenly Desolate Sword Body has also reached the middle and late stages of the third layer, which belongs to the level of the Divine Condensation Realm swordsman, which is enough to withstand the power of the intermediate level of the sand.

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

There are a total of sixty-eight grains of Intermediate Time Sand, and the Time Compass can be used six times, calculating that in a month's time, the Time Compass inlaid with the Intermediate Time Sand will provide Chu Duan with an actual time of forty-one months.

Six times is equal to half a year, and the total time is two hundred and forty-six months, that is, more than twenty years.

"Twenty years should be enough time for me to refine all kinds of mysteries to the limit of the ninth turn. Chu Duan said secretly, excited in his heart.

Twenty years, but in fact, the outside world is only half a year.

After calming down, Chu Duan inlaid ten grains of intermediate sand of time into the compass of time, and activated the compass of time, and a strange force enveloped Chu Duan's whole body, as if isolating him from the outside world.

It's a strange feeling, like being isolated, but it's all connected.

Time is precious, Chu Duan did not waste it at all, and immediately tempered it.

The mystery of the clouds, the mystery of ice, and the mystery of thunder are currently in the late stage of the eighth turn, and the mystery of the void has reached the middle of the fifth turn, and the Yin and evil crystals are consumed in large quantities, and the inventory is not much now, Chu Duan only hopes that before the Yin and evil crystals are consumed, the mystery of the clouds, the mystery of ice, the mystery of thunder, and the mystery of emptiness can be tempered to the limit of the ninth turn.

Take the lead in refining the mystery of the clouds.

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

Finally, the mystery of the clouds reached the limit of the eighth turn, and then, it broke through the shackles and reached the early stage of the ninth turn, as if entering a new world.

In the refining of mysteries, the improvement of each turn is different, especially in the later stage, the difference between each turn of improvement is obvious.

Quenching and refining and refining, uninterrupted refining, lacking the increase of the Divine Desolate Heavenly Palace, the efficiency of quenching has decreased, but fortunately, there is enough time.

When the power of the intermediate time sand was consumed by ten or nine, the mystery of the cloud finally reached the limit of nine turns, and Chu Duan immediately shifted and took the initiative to refine the mystery of ice.

At this time, the mystery of ice, under the natural tempering of the crystallization power of yin and evil, has also reached the limit of eight turns, and the mystery of thunder has also reached the limit of eight turns.

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

This time, the first round of intermediate time sand power was consumed, and Chu Duan immediately embedded it in the second wave, and when the second wave of time sand power was also consumed about eight-tenths, the ice mystery finally reached the limit of the nine turns, and the thunder mystery at this time naturally reached the early stage of the nine turns. Although it was only in the early stage of the ninth turn, it was very unstable, but it had broken through to the ninth turn, which was completely different.

Continue to refining, although there are many mysteries, after quenching to the fullest, the efficiency will continue to decline, but also because when actively refining a mystery, other mysteries will be quenched by the yin crystals, slowly improving the purity, and the next quenching, it will also save some time.

The amount of sand power of the third wave of intermediate time was also continuously consumed, almost to about nine-tenths, and the mystery of thunder was finally refined to the limit of nine turns.

At the end of the day, only the mystery of emptiness remains.

The mystery of emptiness is the most difficult to refine, and its power is also the most powerful of all the mysteries of Chu Duan.

There are almost three rounds of intermediate time sand, counting the outside world for nearly three months, and the time enchantment of the time compass is almost a little more than ten years, and under the natural refining, the progress of the mystery of emptiness is also obvious, from the original middle of the fifth turn to the current limit of six turns.

Take out the Yin Sha Crystals and suck them into the Spirit World Realm, the other mysteries have already reached the limit of the Nine Revolutions, and there is no need to consume the power of the Yin Sha Crystals, all of them are wrapped in the mysteries of emptiness, and the Nine Turns Heavenly Shock Heart Seal is cast, and it is actively tempered with the power of the powerful divine thoughts.

This was the first time that Chu Duan took the initiative to refine the mystery of emptiness, and as soon as he tempered it, he immediately felt the difficulties in it.

Refining the mystery of emptiness at the limit of the six revolutions feels like refining the other meanings of the eight-turn level.

Fortunately, the time barrier between the sand of time and the compass of time is there, otherwise, if you want to refine all kinds of mysteries to the limit, it seems that it may take a hundred years.

Under the time enchantment, the mystery of emptiness finally broke through to the early stage of the seventh turn, and the fourth round of intermediate sand of time was once again embedded in the compass of time, and continued to be refined, and a large amount of yin and evil crystals were consumed, and there was not much left, which made Chu Duan a little worried.

The fourth round of intermediate time sand is consumed, the mystery of emptiness reaches the beginning of the eighth turn, the fifth round of intermediate time sand is consumed, the mystery of emptiness reaches the limit of eight turns, and begins to be embedded into the sixth round of intermediate sand, that is, the last round. (To be continued......)