Qin Shanhe left Chu Duan's sword tower with the "Nine Turns True Yang Heart Seal Technique" and returned to his own sword tower.

Before, he cultivated the Nine Turns Heart Seal Technique, and with this foundation, plus he had successfully transferred to the True Yang Tiangang, and with the power of True Yang, it was not difficult to cultivate the Nine Turns True Yang Heart Seal Technique.

Once he tempered the sword intent and the mystery of the earth to the third turn, his own strength would be further improved and become more powerful, which would also indirectly increase the strength of the Heaven-Shaking Clan.

However, Chu Duan, after refining the sword intent for another day, felt that such a speed was still too slow, if other swordsmen knew his thoughts, I don't know how many people would be so angry that they vomited blood, and then looked for Chu Duan to fight hard.

"The Valley of Ten Thousand Evils can help refine the sword intent and mysteries. Chu Duan said secretly, deciding to go to the Valley of Ten Thousand Evils to accelerate the refining of sword intent.

It's just that to enter the Valley of Ten Thousand Evils, you need to have a team and consume battle points.

Leaving the Sword Tower and coming to the Valley of Ten Thousand Evils, Chu Duan asked a little, and he knew that entering the Valley of Ten Thousand Evils would consume ten battle points every day, and with the passage of time, the battle points on the Battle Record Sword Order would naturally be deducted, until the battle points were exhausted, and they would be rejected by the strength of the Valley of Ten Thousand Evils.

Of course, you can also choose to leave the Valley of Ten Thousand Evils before the battle points are exhausted, everything is voluntary.

As soon as Chu Duan stepped into the Valley of Ten Thousand Evils, the battle points on the Provisional Battle Sword Order were immediately reduced by ten points, leaving eighty-two points.

The Valley of Ten Thousand Evils was very large, and the air was filled with a gray aura, as if countless motes were floating.

A trace of cold and evil aura filled the air, making the swordsman who had just stepped into the Valley of Ten Thousand Evils involuntarily feel a spirit, and his body subconsciously tightened, and it took a while to be able to adapt.

"Ten Thousand Evil Valley, it's really evil. Chu Duan said secretly, sweeping around. Vaguely visible figures, standing in the gray mist.

A trace of cold and evil qi penetrated into the spiritual world, trying to erode the spiritual mind and destroy the soul, but Chu Duan's spiritual world realm was very powerful, and the spiritual intention was even more amazing, and these cold and evil qi could not help Chu Duan at all.

A part of the cold and evil qi spread towards the rudimentary form of the sword spirit, wrapping it up, trying to erode the rudimentary form of the sword spirit. But under the sword intent, these cold and evil qi were suddenly defeated.

Standing in place, Chu Duan carefully analyzed and thought about it, and understood what was going on with the original Ten Thousand Evil Valley's help in the refining of the mysteries of sword intent, that is, the effect of the cold and evil qi, corroding the spiritual world, and eroding the rudiments of his sword spirit, lies in the confrontation of the cold and evil qi. It is also a kind of sharpening of sword intent and mystery.

It's just that the cold aura at the entrance of the Valley of Ten Thousand Evils is too weak to form any refining effect on Chu Duan's sword intent and mystical power, and he must go deeper.

The more you go to the depths of the Valley of Ten Thousand Evils. The gray mist in the air became more and more intense, and the cold and evil atmosphere contained in it became more and more intense.

The cold and evil aura of the Valley of Ten Thousand Evils was impossible to prevent, and it continued to drill into the spiritual world realm of the swordsman. Of course, the purpose of the swordsmen entering here was also to use the cold evil qi here to refine the sword intent and the power of mystery, so it was naturally impossible to prevent the cold evil qi from entering.

There are also some elite disciples who have entered the Valley of Ten Thousand Evils. However, they are either far away, or they are in the same place, and the elite disciples who are in the same place are often people from the same clan.

Chu Duan's spiritual intent is very strong, so he wants to continue to go deeper.

The best effect of tempering is to let the erosion of the cold and evil qi reach the limit of what you can bear.

The deeper you go, the denser and denser the cold and evil atmosphere becomes, and the gray aura occupies it, as if it is a gray space, and the visibility is greatly reduced.

As he walked, because of the surrounding environment, Chu Duan couldn't determine how far he had gone into the Valley of Ten Thousand Evils, but he began to feel that the cold and evil aura that had invaded his spiritual realm had become very strong, and it began to make him feel pressure.

However, this is not enough, and it can be further deepened.

In the rich gray aura, some figures could be vaguely seen, either standing or sitting cross-legged, using the cold and evil qi to refine their sword intent and mysterious power.

The Valley of Ten Thousand Evils has the rules of the Valley of Ten Thousand Evils, and here, you can't shoot at other swordsmen, and if someone does it, they will be discovered immediately, and they will be punished for violating the rules of the Valley of Ten Thousand Evils.

The punishment is very severe, either beheading or abolishing the cultivation.

Whether it is to kill or abolish cultivation, it is unacceptable, therefore, no one dares to do anything to other swordsmen in the Valley of Ten Thousand Evils, it is an act of suicide.

Even if there is a great hatred, he will find a chance to solve it after leaving the Valley of Ten Thousand Evils.

Of course, as a swordsman, there is still vigilance that should be there.

Chu Duan continued to go deeper, carefully feeling the pressure of the spiritual world, increasing little by little.

"This is it. "The cold evil qi that invaded the spiritual world realm was already so strong that Chu Duan felt a little unbearable, although Chu Duan could continue to move forward for a while, making the cold evil qi even stronger, but there was no doubt that he was completely forcing himself to the limit, and once there was any accident, he couldn't react immediately.

Security is also relative.

The cold and evil qi in the spiritual world realm has been concentrated to the extreme, forcing Chu Duan's unrefined spiritual intent to the edge, and the star of the mind is also wrapped.

The prototype of the sword spirit was submerged in the cold and evil qi, and was constantly eroded by the impact of the cold and evil qi.

The sword intent in the rudimentary form of the sword spirit was constantly released, slashing the cold and evil qi, and the mysteries of gold were also constantly cutting in an attempt to erode its cold and evil qi.

In the midst of this confrontation, the power of sword intent and golden mystery is becoming more refined little by little.

Chu Duan sat down cross-legged, thinking as he observed the confrontation between the cold and evil qi and the sword intent and the power of the golden mystery.

"This kind of refining speed is indeed not slow, but it will take a long time to refine both the sword intent and the power of the golden mystery to the point of five turns. ”

After a while, Chu Duan understood more about the refining efficiency of the cold and evil qi on the sword intent and the mystery of gold.

"It's almost equivalent to the refining speed of my Nine Turns Heavenly Earthquake Heart Seal. Chu Duan said secretly, and suddenly, a flash of inspiration flashed in his mind: "I don't know if the Nine Turns Heavenly Shock Heart Seal can be refined at the same time?"

Thinking of this, Chu Duan immediately waved his hands to condense the handprint of the fifth turn, and then, the spirit and spirit were united, the mind was mobilized, and the spiritual thoughts diffused from the star of thought, wrapping the prototype of the sword spirit.

"No, the spiritual mind will clash with the cold and evil qi, causing the refining speed to decrease instead. ”

Chu Duan, who found that something was wrong, immediately stopped the Nine Turns of Heaven Shock Heart Seal and thought to himself.

The refining speed of the Yin Cold Evil Qi is about the same as the refining speed of the Nine Turns Heaven Shock Heart Seal, and it may be a line faster, but it is not very obvious, if it is based on such an efficiency, Chu Duan will not have to consume the hard-won battle points.

Next, Chu Duan tried again and again to see if he could make the Nine Turns Heavenly Shock Heart Seal and Yin Cold Qi temper the sword intent at the same time, so that the efficiency would be doubled.

After trying again and again, in the past half a day, Chu Duan tried thousands of times, and finally let him find the right way.

That is to use the power of spiritual intent to shake the cold and evil qi that has invaded the spiritual world, so that the two can temporarily merge into one, and become the power of the Nine Turns Heavenly Earthquake Heart Seal, and temper the sword intent together in the way of shock and erosion.

Finding the right way, Chu Duan once again condensed his mudra, his spirit and spirit were united, his mind was working, and everything was activated.

Under Chu Duan's strong spiritual intent, the cold and evil qi was temporarily controlled, and it shook in the form of the Nine Turns Heaven Shock Heart Seal.

Shock and erosion are two completely different forces that act on the sword intent at the same time and refine the sword intent.

As for the mystery, it can only be allowed to be corroded by the cold and evil qi, and temper itself in the confrontation.

Even though Chu Duan was able to divide his heart into two uses and use three purposes, because of the limitations of the Nine Turns Heavenly Shock Heart Seal Technique, he was unable to refine the sword intent and the mystery at the same time.

Speaking of which, one of the advantages of the Valley of Ten Thousand Evils is that it can temper and sword intent and mystery at the same time.

After a period of time, Chu Duan calculated that under this method, the refining speed of sword intent was five times that of before.

In other words, if it took Chu Duan fifty days to successfully refine the sword intent to the fifth turn, then now, it only takes ten days to be able to refine the sword intent to the fifth turn.

Chu Dui's battle points totaled ninety-two, which meant that he could stay in the Valley of Ten Thousand Evils for nine days.

According to today's refining speed, there is a certain possibility that the sword intent can reach five turns.

Once the sword intent reaches the fifth turn, it means that Chu Duan's strength will be significantly enhanced, and when he enters the Scarlet Wasteland, he may be able to gain more battle points.

The cold and evil aura of the Valley of Ten Thousand Evils invades the spiritual world realm of the swordsman, eroding the sword intent and the power of mystery, and after being defeated by the sword intent and mystical power, it will dissipate, that is, consume.

As soon as the cold and evil qi is consumed, the cold and evil qi from the outside world will invade the spiritual world realm again, flowing like a stream of water.

Chu Duan's refining speed was very fast, and the consumption rate of the Yin Cold Evil Qi was also relatively three times higher, and the flow speed of the Yin and Cold Evil Qi from the outside world increased significantly, forming a slight wind sound.

Fortunately, there were no other swordsmen around, otherwise, it would definitely cause shock.

Chu Duan, who was immersed in tempering, didn't know the passage of time, and soon, a day passed, and the battle points on the temporary battle sword order on Chu Duan's waist were deducted by another ten points.

Seventy-two!

While Chu Duan was refining his sword intent, Qin Shanhe was also cultivating the Nine Turns True Yang Heart Seal Technique.

Another day passed, and Chu Duan's record points were deducted by another ten points.

Sixty-two!

Fifty-two!

Forty-two!

Thirty-two!

......

Twelve!

Two o'clock!

With continuous tempering, the sword intent has reached the peak of the fourth turn, and it is only one line away that it can break through and reach the fifth turn, but at this moment, Chu Duan suddenly felt that the cold and evil qi in the spiritual world realm was fading, and it was not under his control at all, and then, he felt that a force was repelling him. (To be continued.) For mobile phone users, please go to read. )