The blood of the lizard can solve the strange poison of the underground world, which is really a breakthrough discovery.

Lee Jae-min, the author of "The Mystery of the Source", introduced the method of making serum in the book "The Mystery of the Source". When Ding Yi had not yet embarked on the path of cultivation, he also consulted the Blood Spirit Monk Rose about the cultivation method of blood cultivation.

Since the blood of the lizard can detoxify, then isolate the serum of the lizard and bravely enter the Huangquan Tiankeng, and they will no longer be bothered by toxins. Ding Yi's heart suddenly became hot.

The lizard doesn't matter, he's happy to help others.

Lizards are the slowest of the mutants, and they are slower than others in learning puppetry. However, he is the most righteous one in this group. When there is no food, he will even take the initiative to contribute his limbs to his companions.

The mutants respect Ding Yi very much, and when they heard that Ding Yi serum was being tested, they rushed to be the first person to test the drug.

This kind of scene made the old Zen master look at it, and he was also embarrassed. In fact, the risk of testing the drug is very high, but these mutants don't care at all, which makes him very emotional.

In the crystal salt mine, Ding Yi and they stayed for five days. In the past five days, Ding Yi took the blood of the lizard, made serum, and at the same time, completed the serum test.

Talon was the first to receive, a serum injection test. Ding Yi observed the claw for three days in a row, and saw that everything was normal with the claw's reaction, and there were no adverse reactions. That's when he injected the others with serum.

Being able to breathe freely in the Huangquan Tiankeng provides an important guarantee for everyone to survive in the complex environment of the Huangquan Tiankeng.

In response to the extraordinary abilities of these mutants, Ding Yi tried to let them practice various qualifications. Birdmen focus on chanting, lizards learn the Poison Sutra and blood arts, Golden Horn learns golden spirits, and Talon and Long Tail learn natural arts.

Ding Yi also studied with them, but these mutants learned these cultivation secrets, and the effect was not obvious. This made Ding Yi a little disappointed.

Fortunately, they have made great progress in puppetry, which makes Ding Yi somewhat relieved.

Traveling underground, along the way, Ding Yi collected a large number of samples of various animals and plants, and they also tried to eat the food of the underground world.

Although they injected the serum of the lizard, which has a certain amount of antitoxicity, it is not that everything is fine. Ding Yi was afraid that the lizard would eat and drink because of his outstanding anti-poison ability, so he made certain regulations about his eating. Ding Yi has always had a cautious attitude towards this underground world.

The underground world is beyond imagination, and there are some natural wonders that have never been recorded in books. The creatures in the underground are also very varied, so Ding Yi and them feast their eyes, and during the trip, they made a lot of strange puppets according to local conditions.

Several of these mutants were born in the testing ground, and they didn't know much about the creatures. Although they studied "Naturalism" with Ding Yi, even if the creatures had patterns, they were still somewhat abstract. So most of them use underground creatures as models to make their golems.

In order to let these poor guys know what the surface creatures outside look like, Ding Yi also made a lot of beast-shaped puppets of surface creatures.

During an underground expedition, the number of Ding Yi's puppet army increased rapidly. The old monk also joined the production ranks, but he did more arhats, bodhisattvas and the like.

Hundreds of puppets have formed a three-dimensional military array of points, lines, planes, and three-dimensional, and there is also a new type of puppet in the puppet army, which is an army composed of underground creatures.

With the accumulation of savings, quantitative changes have produced qualitative changes, and Ding Yi's cultivation of the "Tiangang Catalogue" has finally reached a blowout period, and Ding Yi's thirty-six main qualifications, which have been promoted to the spiritual level, have finally reached double digits. In addition to the first upgraded fire spirit qualifications, there are also gold, wood, water, earth, blood, poison, darkness, body, telekinesis, and biological affinity, a total of eleven qualifications.

In addition, many qualifications such as light, gas, and wind have reached a bottleneck period. In addition, his space and time qualifications have also improved significantly.

Those underground creatures in the puppet army are actually Ding Yi's biological affinity, after being promoted to the spirit level, captured and domesticated, Ding Yi put studs on the ears of these underground creatures, and put a beast taming ring around his neck.

These earrings and beast taming rings are signal receivers refined by Ding Yi, and through a certain amount of training, these underground creatures can understand various commands and become Ding Yi's good helpers in the underground world and explore unknown areas.

It's been a long journey, and before you know it, more than two years have passed, and there are still many areas that have not been explored, and there are many deep pits and canyons that they have not penetrated in......

The birdman is no longer in the team, and the underground battles have made this coward much bolder.

He is also a spirit-level puppeteer now, controlling, forty or fifty flying golems. Under the protection of these flying golems, he began to take on the job of a scout, and now, he still has the courage to challenge the large beasts of the underworld.

The mecha on the mutant has been upgraded four times.

This is Ding Yi's work, and in the process of exploring the underground world, Ding Yi's puppet technique has also improved rapidly. The high-level puppets he made were all high-quality. His highest achievement now is that one body is five high-level Xuan-level puppets that can be combined into a seven-meter-tall humanoid puppet at the same time.

This puppet is called Extinction.

However, these puppets alone are not enough to fight against the army of cultivators led by Dao Yuan. After all, even if it is a Dao Destroyer, it is just a Xuan-level puppet, and the empire has thousands of yuan-level grand masters. Ding Yi knew very well that if he hadn't advanced to become a puppet grand master for a day, he could only stay honest in this underground world.

The five mutants, after all, have no chance with the Dao Law, their natural abilities can evolve, but they can't learn all kinds of spells.

In fact, Golden Horn and them are all failed works of the Imperial Experimental Field, although their bloodlines have been transformed, they have not succeeded.

However, the evolution of their abilities made Ding Yi and Qiu Yihong see another way.

The first to evolve was the lizard, and this guy ate and ate during a meal, and actually fell asleep.

At first, Ding Yi thought that he had secretly eaten poison that he shouldn't have eaten outside, which made Ding Yi nervous to death. And when the lizard evolved, its breathing and heartbeat almost stopped.

Ding Yi was ready to detoxify him at first, but it was the old Zen master who was experienced and stopped Ding Yi.

They took off the lizard's clothes and placed him in the tent, and it took about two weeks for the lizard to complete his metamorphosis, and he began to molt like a snake......

During these two weeks, Ding Yi and they protected the Dharma for him. After the evolution was complete, all of his hair fell out, he became a bald head, and the scales on his body disappeared......

After the evolution, the lizard's strength and speed have been significantly improved. His resistance to poison was further strengthened, and his skin was burned at five percent lichen acid.

Originally, Ding Yi thought that he would become a normal person, but not long after, he still grew scales again......

The evolution has just ended, and the lizard's joy of returning to normal people, Ding Yi and they can all experience it, and the lizard during that time was very happy, and he was happy for his new life. I'm very motivated to do everything. In the envious gaze of his golden horn, he once thought that he had completely gotten rid of his identity as a mutant.

But a month later, when the scales that sprung up like mushrooms after a rain covered his body again, he wept bitterly, like a child.

Ding Yi and they are also a little unbearable, these mutants who escaped from the test ground, in fact, everyone has a dream of being a new person, but the reality is too cruel.

Under the repeated guidance of Ding Yi and the old Zen master, it took a long time for the lizard to return to normal.

The second evolved was Long Tail, and one day he manipulated his tail as usual, playing with a stone bell shoot. Unexpectedly, this time, the long tail that could roll up hundreds of catties was actually broken. Let the long tail fall from a height of six or seven meters. If it weren't for the mutant's physical fitness far beyond that of mortals, this time, he might still be injured.

Having lost his tail, his body was once again out of balance.

The long tail did not appear in the state of suspended animation of a lizard, and everything behaved like a normal person, but he habitually liked to cock his buttocks, and after more than ten days, his tail vertebrae itched, and a new tail gradually grew.

After evolution, the tail of the long tail can extend to five or six hundred meters, which is five or six times longer than before.

And the tail of the long tail is not as long as before after evolution, the tail of the long tail used to be about one meter two, slender and slender, but now it is only seventy or eighty centimeters, and it is short and thick, short and thick, and it looks a little weird.

These poor mutants, they want to return to normal people very strongly, but let them become normal people, it is not something that Ding Yi can do, in addition to deep sympathy for these mutants, he has no way to solve this problem.

Because there is a precedent for lizards, the mutants who evolved later do not have such a big emotional gap.

Five mutants, the most exaggerated evolution is the birdman, this thing actually one day, after falling asleep, the body was covered in 'sweat', and the next day, a huge insect egg was formed, and he sealed himself in the eggshell......

He took the longest time to evolve, almost half a year or so, before he broke out of his shell and was reborn......

The quietest evolution was the golden horn, he began to feel a little itchy on the top of his head, and asked Ding Yi to get some elixir to put on it, he didn't realize that it was evolution at all. Until this horn fell into the soup pot while eating......

The only thing that didn't move was Talon, he had told Ding Yi that he was very envious of his companions, who at least had a short time to return to normal......

He was the oldest of these mutants, and before the age of twelve or thirteen, he was still a normal person's body, and his heart for turning back into a normal person was stronger than anyone else.

The mutants are all victims, victims of the Empire's inhumane biochemical experiments, and their hatred is as deep as their pain. They hated the rule of the empire even more than Ding Yi. However, they can only bury this hatred deep in their hearts, because Ding Yi has repeatedly told them about the current situation of the empire. If they want revenge, they must rely on Ding Yi.

After each mutant evolved, their abilities were significantly enhanced, and although they had nothing to do with the Dao, Ding Yi still taught them to learn some physical techniques, as well as the breathing and breathing method of the natural gate.

As mutants, cultivators have changed their bloodline factors, overdrawing their physical strength and life potential. Although they all have the characteristics of beasts, they are all humans, and Ding Yi still hopes that these good companions of his can live a long life.

With the qualification of Ding Yi and the successful promotion, Ding Yi's overall strength has been greatly improved. Without the help of the Golden Horn, he was able to use spiritual fire to refine steel, and coupled with the metamorphosis increase of his spiritual power, his refining level had increased rapidly.

More than two years have passed, and Ding Yi is now sixteen or seventeen years old. In the empire, at the age of sixteen, even if he is an adult, Ding Yi has now grown taller than Ding Zhaoding. He misses his family, friends. After more than two years of traveling in this dark underground world, he began to have a strong desire to return to the surface.

Now how deep it is from the ground, no one knows, they have been walking all the way down from the Huangquan Tiankeng, and they have been walking for more than two years. All the way down, there are hundreds of kilometers of depth here, to say the least.

After today, let's return tomorrow. Ding Yi thought to himself.

"Ding Yi, Ding Yi, what do you see this?" the birdman shouted when he saw Ding Yi from afar.

He held a bone sword in his hand.

Ding Yi took it and looked at it for a moment.

"Where did you find that? Take me there. Ding Yi said.

"It's right ahead. "Birdman is also excited.

Ding Yi hurriedly spread his spirit wings, and under the guidance of the birdman, he flew forward.

This is a bone sword refined from the fangs of unknown alien beasts and the spiritual fire of cultivators. Unexpectedly, there were cultivators in this underground world, Ding Yi secretly became vigilant, and at the same time, he was also inexplicably excited about this underground world and human beings.

Not far from where the birdman found the bone sword, Ding Yi found human bones. This made Ding Yi, who was originally going to return, temporarily dismiss the idea of going back.

There are strange things in this underground world, especially in such a deep underground, where traces of human beings have been found, and Ding Yi's curiosity has been hooked.

Soon, Qiu Yihong and the others also rushed over.

Everyone was a little excited, to be honest, hunting those strange beasts all the way, although it was exciting, but after a long time, everyone felt a little boring. This sudden discovery made everyone's nerves excited.

Ding Yi and the old Zen master chose one direction and searched forward along the underground pit, and the birdman ran in the other direction with the mutant.

Along the uneven pothole, all the way forward, after passing through a pothole, Ding Yi and the old Zen master were stunned by the world in front of them.

This is a super large fault, about 500 meters below the pothole, is a flat land, above the pothole, there are still a few kilometers above the dome of rock. These rocks are dotted with stars, I don't know if they are man-made or natural, and they are inlaid with countless sun stones......

And the land under your feet is endless......

Thinking of that bone sword, there is likely to be another civilization here, and Ding Yi's heart is on fire.

Ding Yi has been in contact with several civilizations, and the highest-level is the high-level civilization of the Kui Jupiters. In addition, his spirit has entered the world built by technological civilization. He was very much looking forward to the civilized world that might appear in the depths of the earth.

However, Ding Yi also knows that any civilized contact must be very cautious and careful. There may be unpredictable risks here. Ding Yi and Qiu Yihong retreated.

Coming to the meeting place, the birdmen they have returned. Everyone exchanged their findings.

Looking at the golden horn that was gearing up, Ding Yi had a headache, but for the sake of safety, Ding Yi decided that it would be better for him and the old Zen master to go to this underground world first and understand the situation first.

repeatedly warned the golden horn and did not allow them to follow them without permission, Ding Yi and Qiu Yihong, and then returned to the mouth of the pit again and jumped down.

Stepping on this strange land, Ding Yi was a little excited.

He was still thinking about taking a sample of the soil for analysis. The old Zen master patted him on the shoulder.

The old Zen master pointed behind him, and Ding Yi turned his head and saw a huge petroglyph behind them, on which more than 300 kinds of animals were painted. In addition, the petroglyphs also depict human activities, and these human figures are no different from the human beings outside.

The main content of the petroglyph is to describe a large-scale hunting activity, but Ding Yi is a little confused, why jackals, wolves, tigers, leopards, dragons, elephants...... These surface creatures will appear in the petroglyphs. You must know that Ding Yi and their trip to the center of the earth have also seen all kinds of scenery in the underground world along the way. They hadn't even seen a single surface creature......

Could it be that there are also surface creatures in this land? Or is the world here just a branch of the civilization on the ground? These underground humans also lived on the surface and migrated to the surface for some reason?

With doubts, Ding Yi and Qiu Yihong flew to the depths of the earth.

After nearly a quarter of an hour of flying, the two of them smelled a strong salty smell, and after a while, they saw a sea appear.

This is really unexpected, you must know that the deepest part of the sea on the surface should not exceed 100,000 meters, and the land under their feet is at least a few million meters away from the surface.

After all, Qiu Yihong is a great grandmaster, and his divine sense is much stronger than Ding Yi, and he has discovered it again, he took Ding Yi and flew in one direction.

It turns out that there is a Beijing view by the sea, which is a Beijing view made of the skulls of hundreds of millions of people, and there are several stone pillars more than 30 meters long in front of the Beijing view.

Ding Yi was originally full of joy and wanted to get in touch with the underground civilized world, but when he saw this accumulation of white bones, his heart was full of anger.