Looking at the black qi in the sky, Liu Xuan was stupid, just now he was stunned by the sudden appearance of so many ghosts, and now he was wiped out by the Haotian Knife, and after this blow, the Haotian Knife seemed to have suddenly lost its strength, although it still maintained the black blade, but the purple-black flames on it had disappeared. Pen & Fun & Pavilion www.biquge.info

As soon as the yin spirits outside the formation were wiped out, and even the yin spirits in the several activated formations were actually wiped out by this blow, everyone in the formation opened their eyes wide and looked around blankly.

The black qi that filled the sky was not something else, it was the death qi produced after the Yin Soul was destroyed.

Dead qi is also called different from yin qi, yin qi is like the air of human existence, the heavier the yin qi, the easier it is to attract powerful yin spirits, because the more yin qi is born, the less restricted he is, yin qi is to yin spirits, that is, air is to human beings. The death qi is different from the death qi that is produced when the human being dies or the yin spirit dissipates, which is equivalent to the spiritual energy needed during spiritual cultivation, the heavier the dead qi is, the more condensed it is, and the faster the yin soul evolves.

Of course, the reason why yin spirits like to attack human beings is mainly to absorb human yang, human yang energy is like an elixir that can prolong life for yin souls, and when people are afraid or die, they will also produce death qi, so for yin spirits, human beings are their elixir to extend their life and strengthen themselves.

Human beings are afraid of the Yin Spirit, first of all, because of the great harm caused by the Yin Soul to human beings, and then there is the Yin Soul has no consciousness, originally, after the death of human beings, it should be a good thing for relatives, because relatives can continue to live through this form, for human beings with feelings is a kind of nostalgia, but after becoming a Yin Spirit, there is no consciousness, only the instinct to devour and attack human beings, which is terrible.

Liu Xuan couldn't figure out what the situation of the Haotian Knife was, this Haotian Knife and the Immortal Diagram seemed very humane in many places, and he would automatically come out to protect the Lord when he was in danger, and today was different, if it wasn't for the Haotian Knife, in the face of thousands of Yin Souls, he would not be able to resist it.

Now he finally knows why this ghost eye is suppressed by the powerful veins of Zhu Langlun, and if it is replaced by other vein levels, not to mention suppression, it is lucky that it will not be eroded.

The reason why Zhu Langlun said that the foundation is damaged, mainly because of the dead air, such as the yin qi and the yin wind or something, like them, these qi condensations are not a problem to resist for a few hours, but they can't resist the dead air, the dead air, only when the person dies, if the dead air is inhaled in advance, the light impact on the cultivation will be light, and the heavy one will die immediately.

Liu Xuan was helpless, the Haotian knife shook violently, Liu Xuan hurriedly held the knife in one hand, the blade seemed to be uncontrolled, and the death qi in the front sky sent out a great force attraction, and gradually, the sky full of black gas converged into a trickle, and it was slowly absorbed by the Haotian knife.

The Haotian Knife absorbed very slowly, but the speed at which the death qi in the sky fell was also slow, and gradually it seemed to form a stable, Liu Xuan felt that the Haotian Knife in his hand gradually became cold, so he looked down and found that the purple-black Haotian Knife actually glowed with a trace of green light, this green light was indescribably weird, gloomy, miserable green, and it looked absolutely abnormal, and as the death gas in the sky became less and less, the Haotian Knife became more and more green, and the Haotian Knife, which was originally shiny in the black, actually revealed the green of Yin Yin.

Liu Xuan is very clear about the several changes of Haotian Knife, the first time is to absorb the blue substance in Xia Ruling's dagger, and then it turned blue, Liu Xuan also checked, it is an ore produced in the land of extreme yin, called Yin Wind Glass, because it is influenced by the qi of extreme yin, so it can give people a short-term illusion, which is not difficult to explain why Xia Ruling, a martial cultivator, can have the ability to conceal similar to the true technique.

That time can be regarded as the first evolution of the Haotian Knife, after absorbing the Yin Qi in the Yin Wind Glass, it evolved into the blue Haotian Knife, and it was in that time that the Haotian Knife evolved into the tail flame.

The second time was when it was time to kill Hanmo, after Haotian Knife absorbed Hanmo Ghost Dragon, in fact, to put it bluntly, the ghost dragon was actually a black dragon composed of dead air, so Haotian Knife evolved to what it was before today, but it may be because of the lack of dead air, Haotian Knife evolved incompletely, although the blade was wrapped in black dead air, but Chong gave people a feeling of lack.

Until today, when Haotian absorbed nearly 10,000 Yin Souls, he finally gradually revealed his original appearance, this is a slender blade, said to be slender, but compared to the ultra-thin knife type like the Tang knife, it is still much wider, the blade is slender and thick with a three-finger width, the blade is slender and straight, there is a semi-hidden blood groove on the blade, which continues to the position of the knife, the tip of the knife is an arc-shaped knife tip, and there is a fine hole at the tip of the knife, this fine hole is the end of the blood groove, and there are bursts of whistling sound in the fine hole, which sounds like a ghost roaring carefully, even Liu Xuan faintly adapts to it, Liu Xuan waved it, and the sound of a call sign immediately came from the thin hole, just like the nearly 10,000 Yin Spirits at the Ghost Eye just now roaring in unison, it seems that the Haotian Sword also has the effect of sound attack.

The handle of the knife is like a pillar, there is a dragon tail hovering over the pillar, there are three circles, just suitable for the three gaps of human fingers, the swallow is a strange beast head, Liu Xuan can be sure, he has not seen this kind of beast head in the ancient books of the mission, the four beasts are protruding, just stuck the blade, the eyes of the two beasts are still flashing with strange light, staring at the position of the tip of the knife.

The back of the knife is undulating wave patterns, but Liu Xuan looks more like a constantly tumbling cloud, and the knife body is not smooth, but it is full of runes that Liu Xuan can't recognize, densely covering the entire knife body, these runes are not dark lines, and with the green flames burning on the knife body, it looks extremely weird.

At this time, there was still some residual dead air near the ghost eye, with the Haotian knife wielded by Liu Xuan, the eyes on the beast's head suddenly lit up, and the remaining dead air was attracted by a strong force, and quickly gathered together, but it was absorbed by the Haotian knife in a moment, not only that, when all the dead air was absorbed, the eyes of the beast's head were aimed at the ghost eye, and the knife body couldn't help shaking, Liu Xuan almost couldn't control it, the suction force was getting bigger and bigger, and the seal at the ghost eye was slowly shaking, it seemed that the Haotian knife was actually aimed at the ghost eye。