Although Lin Tianheng has taken Tianmen, Tianmen is mostly responsible for intelligence work and mission execution, and his scientific research center in this realm is still Tiexin Island, the three brothers of Tiemen are in charge of forging, and the divine doctor is responsible for refining medicine.

Lin Tianheng's retreat breakthrough took several months, and with the concerted efforts of the three Iron Gods, the creation of the Dragon Scale Knife was extremely smooth, and it was almost complete at this time, so the casting efficiency was indeed a lot higher than that of the Sword Worship Villa.

Not only that, but with the support of the Iron Maniac's world-class casting skills, Tie Zhi's "Puppet Technique" has also made a new breakthrough, successfully creating a steel beast in the shape of a dragon, as long as it is properly controlled, even the grandmaster warrior will hate it, and it is definitely an unrivaled meat grinding machine on the battlefield.

"Great, if you can create more of this kind of beast, you can dominate the world just around the corner! This thing is literally made for conquering cities! Lin Jianli and Lin Junhao touched the cold steel beast and let out similar feelings.

Both of them have a lot of real power in their hands, and in addition to Lin Tianheng, the two people who are most enthusiastic about expanding their territory naturally attach great importance to this kind of war beast.

On the Divine Doctor's side, he has been perfecting his two core products, Heavenly Wolf Veterinary Medicine and Reverse Qiankun, and following Lin Tianheng's instructions, he has written his life's medical and pharmaceutical books into a book, and by the way, he has studied the broken Wan Xuan Pill.

The raw materials of the wolf veterinary medicine are from all kinds of fierce beasts, among which the ferocity is difficult to eliminate, so its side effects that erode the mind cannot be removed, and can only be suppressed by using drugs.

Although the side effects of the Sirius Veterinary Medicine are large, if it is used in the right place, of course, it can also exert good effects, such as the cultivation of death squads.

In the original book, Emperor Shakti raised a group of fierce beasts in the Heavenly Gate that the six relatives did not recognize, and if this powerful and fierce and bloodthirsty thing went to the battlefield, it could play a role no less than the steel beast designed by Tie Zhi.

As for the Reverse Qiankun, the Divine Doctor has made some progress, because there is actually an experimental subject on Iron Heart Island who has taken the Reverse Qiankun, the adopted son of the Iron Maniac, Madness.

With Madness as the perfect test subject, the Divine Doctor began to improve the Reverse Qiankun early, and under his round-the-clock research, he finally developed the Reverse Qiankun 2.0, which had much fewer side effects than the original Reverse Qiankun that Madness took when he was a child.

The fundamental principle of the operation of this kind of thing is to overdraw the potential and essence of the human body, and after taking it for ordinary people who are seriously injured, although they have the miraculous effect of resurrecting the dead and rapidly enhancing their strength in a short period of time, they will seriously overdraw the body, and their life expectancy will be greatly reduced after resurrection.

Even so, the reverse Qiankun can still be called a miracle medicine, after all, the price of overdrawing the body in exchange for a second life, which is more important, presumably no matter who can tell the difference, this is a real resurrection, even the Great Qi Demon Sect Holy Medicine Ten Thousand Healing Pill can't do it!

The analysis of the Wan Xuan Pill was not particularly smooth, after all, the medicinal materials grown in the two realms were very different, and many of the medicines in the Wan Xuan Pill did not exist in this realm, even if the level of refining medicine of the divine doctor was strong, without medicinal materials, he was helpless.

However, the divine doctor is indeed the pinnacle of this world in the way of medicine, even if he did not reverse the original prescription, but he also used the way of pharmacology he saw from the Wan Xuan Dan into his own reverse Qiankun, and it can even be said that the divine doctor was able to successfully develop the second generation of reverse Qiankun, and the Wan Xuan Dan is also a great contribution.

Moreover, the divine doctor really discovered the spirit Gu under Yan Hangxuan from the incomplete Ten Thousand Healing Pills, once this Gu is taken, it will parasitize in the human brain, close to the position of Zhihai, which is very dangerous.

In fact, once this kind of spirit Gu is launched, it can quickly invade the sea of martial artists' consciousness, as long as the primordial spirit is not condensed, it is impossible to resist the invasion of the spirit Gu at all, and can only be controlled by others, obeying the orders of the person who is under the Gu, otherwise it will be the end of the soul scattered, and it is very suitable to control the great grandmaster.

However, not all great masters can deal with this Gu, because this kind of Gu cannot exist alone, it must be combined with several medicines, and it must be taken by people together to be able to survive and reproduce smoothly in the human body, and there are just these drugs in the Wan Xuan Pill, so it is the best choice to cooperate with this Gu.

If it weren't for that, I'm afraid that the great masters in the Great Qi would have been controlled by the Spirit Gu Dao long ago.

After having the reverse Qiankun, it doesn't matter whether the Wan Xuan Pill can be restored, and after Lin Tianheng consciously returns to Daqi, even if he forces the Demon Sect to hand over the Wan Xuan Dan Pill, they probably have to follow!

Lin Tianheng didn't go to meet Tie Zhi and the Divine Doctor, but just asked Lin Xingkong and the others to take over their research results, and he himself came to the secret room where the Iron God and the Iron Maniac made the Dragon Scale Knife.

At this moment, a long knife with a black body and a terrifying glow was being tempered in the flames, like a sleeping black dragon, and the whole body still exuded a vicious aura.

The Iron Maniac's forging skills are indeed the top in this world, but his biggest problem is that he is too fierce, and the weapons he has created are more fierce than the other, Heavenly Sin, Heavenly Tribulation, and even the current Dragon Scale Knife.

Originally, the sin of heaven was already a terrifying beast in the world, once it was unsheathed, it had to drink blood, and if it didn't drink blood, it would not return to the sheath, so it had to use an iron box made of iron wisdom to suppress its ferocity.

But compared with the dragon scale knife, the ferocity of the heavenly sin is a big thing, maybe the dragon scales of the demon dragon already have a fierce aura, and in the hands of the iron maniac it is even more ferocious to the extreme, where is this still a murder knife, it is simply a demon dragon!

'The old man is so fairy-like, he looks like an old fairy, if he holds such a murderous knife, wouldn't it damage the image of the old man. Lin Tianheng touched his beard and said secretly, feeling that the temperament of this knife did not match him at all.

"Lord, this knife has been created with the painstaking efforts of the three of our senior brothers, and its power is far greater than any weapon we have built before, even the perfect tribulation that the Iron God envisioned is far inferior to this dragon scale knife." The iron maniac didn't understand Lin Tianheng's thoughts, and just blindly invited merit.

"When will this knife be cast?" Lin Tianheng asked lightly.

"Lord Qiqi, the task of building has basically been completed, and now we only need to continue refining, and we haven't thought of the right materials to refine it one last time." Iron God reported.

"Oh?" Lin Tianheng raised his eyebrows slightly, "Is there any difficulty?" ”

Although there are a lot of rare forging materials in the Iron Heart Island, the Tianmen forces are all over the Shenzhou, and if you want to find something, it is the best choice.

It's just strange to say that under such a pervasive infiltration of Tianmen, many people and things have never heard from them, such as the top ten martial artists Wu Wuving, and his old opponent, the king of evil soldiers, the Great Evil King, the people of Tianmen searched all over Shenzhou and did not find their whereabouts, as if someone did not want them to be found by Lin Tianheng and deliberately helped them cover up their whereabouts.

"The peerless good sword is obtained by Miss Ziqing, the lord knows the sword casting process of the Sword Worship Villa, after the peerless good sword is formed, in order to make it worthy of the peerless name, the Sword Worship Villa deliberately found three people with the most persistent sword heart, and used their blood to complete the final tempering, and the peerless good sword was born." The Iron God bowed his head.

"So, you want to find the person with the most persistent sword heart and use their blood to refine the dragon scale knife?" Lin Tianheng followed the Iron God's train of thought and continued.

It's just that the world of "Fengyun" is obviously a world where swords are respected, and the way of the sword is far from being as prosperous as the way of the sword, and the only good hands who are currently concentrating on practicing the sword are probably only the father and son of the Nie family, the first evil emperor, the second sword emperor, the third pig emperor and the emperor who is far away in Dongying, as for the decathlon of Wu Wuving, it is not counted, and there is no trace of him at all.

Besides, I haven't heard of any so-called sword hearts in them, Nie Feng has the heart of the Holy Mother, the first evil emperor is evil, the second sword emperor is arrogant, the third pig emperor is greedy, and the emperor is lonely, can these things be considered sword hearts?

Compared to a group of swordsmen with various sword hearts, the swordsmen really don't seem to be worth mentioning.

There is also a strange small world in this world, called the sword world, which has the swordsmanship and sword intent of the world's swordsmen, the sword is righteous into the sword mountain, the sword is evil and falls into the sword pool, the higher the sword realm is, the higher the sword mountain will be.

This shows that Heavenly Dao loves the way of the sword the most, otherwise there is no sword world, stick world, and gun world, but only one sword world!

Lin Tianheng had tried to forcibly tear the space apart and went to the Sword Realm to take a look, but I don't know if it was because he didn't use a sword, he couldn't perceive the specific location of the Sword Realm at all, let alone enter it.

There is another strange space corresponding to the sword world, called the nine emptiness, there is no heaven above, there is no earth below, heaven and earth, man, gods, Buddhas, sun, moon and stars are all empty, it is nine emptiness! In it, you can see the past and the future!

If you want to enter the Nine Voids Boundary, you need the power of the Most Good or the Most Evil, Lin Tianheng is neither the Most Good nor the Most Evil, naturally he does not have this kind of power, because the Heavenly Mandate Knife, which represents the Most Good, and the Great Evil King, who represents the Most Evil, cannot be found, so he does not have the key to open the Nine Voids and the Boundary, and the matter of entering the world can only be done.

"It doesn't have to be that way." The Iron Maniac shook his head, and there was a strange fanaticism in his eyes, "Since this knife is made of the legendary dragon scale armor, then using dragon blood to quench the knife is naturally the best choice. ”

Lin Tianheng nodded thoughtfully, feeling that this was reasonable, but he didn't get a drop of dragon blood from slaying the dragon this time, and all the energy in it was absorbed by the Chiyan Divine Sword.

'If I knew this, I should have snatched some dragon blood from under the mouth of the evil sect. Lin Tianheng was very remorseful in his heart, how could he have cheapened that magic sword, fortunately, it could also feed back the energy to Lin Ziqing to help her break through, otherwise this wave would really be a big loss.

However, Lin Tianheng thought about it, since the dragon blood could carry out the final refining of the dragon scale knife, would the blood that he had absorbed the energy of the two dragons also have the same effect?

As a result, Lin Tianheng forced out a small drop of blood from the tip of his finger, and now he was beyond the scope of mortals, and the energy contained in this drop of ruby-like blood could easily create an innate martial artist.

Lin Tianheng flicked his fingers, and the blood flew to the dragon scale knife located in the center of the fire pool, and the original black blade suddenly shone brightly the moment it touched the blood, and the ferocity on it seemed to be suppressed at the same time.

"Lord, it seems that you are the master of the fate of this sword, and only your blood can make it shine the brightest." The Iron Maniac shouted excitedly.

Lin Tianheng smiled slightly, noncommittal, even if he said that he was half human and half dragon now, it would not be an exaggeration.

"If you want this sword to be cast as soon as possible, you need to pay more blood from the Lord." The Iron God said respectfully.

"In that case, let's see what this knife can be forged in the end." As he spoke, Lin Tianhengfu shot out another stream of blood for the Dragon Scale Knife to absorb.

Lin Tianheng's blood is very precious, he naturally will not use it indiscriminately, the reason why he is willing to use it to forge a knife is because when he just dropped the first drop of blood, he had a sense of connection with this knife in his heart.

As long as he can forge a weapon that belongs to him, Lin Tianheng feels that this blood is worth using, after all, he is now a Yuan Fetal Realm cultivator, and he doesn't even have a psychic weapon, his face is really dull!

Lin Tianheng is definitely not a little red-eyed, Lin Ziqing has a Chiyan Divine Sword that can only be used by herself, so she did this!

With the pouring of more blood, the light on the dragon scale knife became more and more abundant, and the original pure black knife body was now glowing with a trace of gold, and the original fierce evil aura on it was also gathered into the knife body, and it seemed that it had gradually changed from a fierce soldier to a holy soldier!

Suddenly, with the sound of a dragon's groan that resounded throughout the island, the dragon scale knife flew out of the fire pool on its own and came straight towards Lin Tianheng.

The Iron God and Iron Maniac standing on both sides of Lin Tianheng only felt as if there was a terrifying black dragon with teeth and claws coming towards this side with the momentum of thunder, as if they would be torn to pieces by the black dragon in the next second.

However, this black dragon was obviously not coming at them, Lin Tianheng stretched out his hand, and the dragon scale knife fell into his palm, as if it was a part of his body.

Immediately afterwards, Lin Tianheng's mind moved, and the dragon scale knife actually hovered in the air by itself, it was really like a black dragon dancing in the air, and its momentum was terrifying.

With the killing intent in Lin Tianheng's heart, the endless evil qi hidden in the blade quickly poured out, almost turning the entire secret room into a purgatory, and the iron god and the iron maniac were overwhelmed by the killing intent and evil qi, almost out of breath.

Seeing this, Lin Tianheng immediately retracted his killing intent, and the dragon scale knife also regained its calm, and its divine light was restrained.

"Yes, it's really a divine weapon." Lin Tianheng nodded and praised, "Since you are made of the scales of the Demon Dragon, and your whole body is like ink, let's call you the Ink Dragon!" ”

Lin Tianheng originally wanted to add the word "demon" to the name of the sword, which looked powerful and domineering, but this did not conform to the image of his righteous old immortal, so he took the word "ink", which happened to match its color.

The Molong Dao roared, as if he had accepted his name.

Then, in order to test the sharpness of the ink dragon, Lin Tianheng gently slashed his palm.

After the knife, Lin Tianheng's hand was still as smooth as jade, without the slightest trace of a knife.

In this regard, Lin Tianheng was not surprised, after all, his body had received the energy of two dragons, and he had also survived two thunder tribulations, and the hardness could be seen.

The Ink Dragon Sword was created by three little guys under the Heavenly and Human Realm, and if he could easily injure him, a cultivator of the Yuan Fetal Realm, then wouldn't his cultivation be an abnormal failure.

However, this sword also let Lin Tianheng probably know the sharpness of the ink dragon, because of the absorption of his blood, the power of the ink dragon can definitely be better than the peerless sword, it is definitely the best choice among the weapons used by the martial artists of the Heavenly and Human Realm, and it also has the meaning of some magic weapons, after all, he can control the ink dragon with his heart in a small range.

However, if you want to be promoted to the list of weapons used by Yuan Fetal Realm cultivators, I am afraid that you need to further polish and add more precious materials.

It seems that the old man is upgrading too fast, and even the weapons can't keep up with the rhythm. In the future, the old man will shape you well. Lin Tianheng said secretly.

There is no need to compare with other weapons, as long as this ink dragon can catch up with Lin Ziqing's Chiyan, Lin Tianheng will be satisfied, but he has not yet seen what level of weapon the Chiyan Divine Sword is.