Professor Zheng Lao's specialty is 'urban planning and garbage disposal'. This is a very special research direction, which must be studied in both arts and sciences, and it also needs to have a practical spirit. It's not easy to do this for decades.

After all, garbage is a thing that everyone hates, but it is extremely complicated, and it is impossible to sit in an ivory tower and think about it, and it must be disposed of on the spot.

In the first few decades, the flower grows savagely, and the study of urban planning requires a long-term vision, and the disposal of garbage is thankless.

When he is free from the shackles of his body and has the support of the rich negative energy of the Northland, the old professor's work ability can be said to be improved by orders of magnitude. He was already in his nineties when he died, and he was able to wake up for an hour or two a day to Amitabha, and now he is ......

Working 24 hours a day, his thinking is particularly clear and sharp.

For those who are engaged in scientific research, it is perfect to have the experience of being seventy or eighty years old, the responsibility of forty or fifty years old, and the vitality of twenty or thirty years old. Professor Zheng Lao has collected all these qualities.

Faced with the field of magic that he had never touched, the old professor was as curious as a schoolboy and had a lot of time to squander. He has enough knowledge accumulation and good learning methods, focuses on thinking for a month, and is more efficient than Zhou Qingfeng for one or two years.

"In my current state, only a complete transformation into a necromancy can I have an affinity for magic. Therefore, to study negative energy, the first step is to complete the morphological transformation. "The old professor is very confident in his recent studies and research.

Outside the Banshee Castle City, Zhou Qingfeng changed to a deserted village to live. This is the fourth address he has changed in recent years, just to avoid being tracked by outsiders.

In the dry well of the deserted village, the negative energy was extremely strong, but Zhou Qingfeng was not enough, and released hundreds of hidden servants and disintegrated them all. For a while, the negative energy in the dry well was as rich as drowning, cold and piercing, enough to invade the soul.

Taking out the 'Soul Coins', Zhou Qingfeng exchanged a piece of red crystal for the ability of the Mondino Necromancer. He peered through the web and waved his hand to summon a gray soul from his mind.

This is a Black Forest inhabitant who believes in the Light as a faith, and after his death, his soul does not go to the underworld, but enters the information network. Before, Sophia said that Zhou Qingfeng had a lot of gray crystals, referring to them.

'Summons the undead' - Ghosts.

Under the dark night, Zhou Qingfeng raised his palm in front of the dry well. The gloomy and rich negative energy quickly condensed and continued to pour into the gray soul. After a moment, the Chaos Soul reshaped into a hazy human form, and its head lit up with two red dots.

A lowest-level ghost was born, and it looked at Zhou Qingfeng and bowed slightly. It is a transformation of a complete human soul, far more intelligent than a hermitage, but it is still weak.

Ciric was puzzled by this, and asked, "Boy, you are already an alchemist, why do you want to transform the necromancy?" Do you think you don't have enough hidden servants to control yourself? ”

For Ciric, its divine mind could scan the conditions within a few tens of meters of Zhou Qingfeng's vicinity, but it could not scan the conditions of Zhou Qingfeng's body and mind. This is like the characteristic of 'black under the lamp', which is the premise of concealing the existence of the old professor.

Zhou Qingfeng didn't say anything, and continued to take out the gray crystal for conversion. He processed more than a dozen in one go, and there were more than a dozen weak ghosts with two red rays in front of him. The whole process consumes a lot of negative energy, causing the magic net to oscillate slightly.

In the end, the negative energy in the deserted village was almost absorbed. The negative energy from outside the village rushed over to fill it, and even triggered a vortex of negative energy. In general, the whirlpool does not last long.

Zhou Qingfeng seemed to have messed up the experiment, and when he saw that something was wrong, he seemed to want to turn around and run away. Ciric, who didn't know why, couldn't help but laugh a few words, "Boy, what the hell are you going to do?" If you don't understand, you can ask me, so as not to die in vain. ”

Uncle Zhou still didn't talk. After he became an alchemist, he did many magical experiments, most of which failed. This time, he didn't care as before, and if he messed up, he messed up, and the loss was not big anyway.

But Zhou Qingfeng couldn't run, and in the face of the increasingly turbulent negative energy vortex, he reached out to touch it. Ciric hurriedly shouted, "Boy, don't mess around. You will die from the erosion of negative energy. ”

Zhou Qingfeng's fingers paused. He hesitated for only a second, then reached out and touched the whirlpool—a huge surge of negative energy pouring in.

With the help of the necromancer's ability, Zhou Qingfeng channeled the negative energy entering his body into his mind. Professor Zheng's soul was waiting there, and all the negative energy was used to transform his yellow quality soul.

The vortex of negative energy centered on the dry well acquires a new channel for catharsis. Because of the whirlpool's own suction, it grows stronger and stronger.

The old professor's ghost transformation was completed almost instantly, but the negative energy was still pouring in. Ciric began to raise his voice, "Boy, what the hell are you going to do?" You don't really want to turn into a necromancy. It's not good for you. ”

The forcible extraction of negative energy caused an even more violent shock of the magic net, and the divine thoughts released by Ciric were affected as a result. It started to mutter, "Boy, are you experimenting with ancient heresy? I must warn you that it is dangerous to do so. ”

The negative energy vortex was indeed becoming more and more dangerous, but Zhou Qingfeng did not stop the action of extracting, but instead took out a 'Tear of the Emperor' from his pocket, which Fabro obtained in the ruins of the 'Silver Leaf City' and gave it as a gift for currying favor.

As a top-notch jewel, the 'Tears of the Emperor' has a strong magical storage property. Zhou Qingfeng usually doesn't use it at all for experiments, but now he doesn't hesitate to use this jewel as an energy container and continue to extract it.

But it's not enough to have the 'Emperor's Tears' as an energy buffer. Zhou Qingfeng was ruthless at this time, and pulled in more than a dozen 'Holy Light' believers who had just been transformed into ghosts, and the negative energy was accompanied by them.

These believers are all ignorant Black Forest dwellers. Their soul quality is too low, and completing ghost transformation is already the limit. The impact of the negative energy vortex immediately exploded three of them, followed by four more.

The successive explosions buffered the strength of the negative energy impact, but the shock caused by the explosion scared Ciric enough. It kept asking what Zhou Qingfeng wanted to do, and gave various ideas to help Zhou Qingfeng deal with the damage caused by the impact.

When the 'Tears of the Emperor' turned from crystal white to inky black, when the ghosts of a dozen believers exploded and only four or five remained, when Ciric was so mad that he cursed incoherently, Zhou Qingfeng finally broke away from contact with the vortex of negative energy.

In Zhou Qingfeng's mind, the transformation of the old professor went further than expected. Not only did he become a ghost, but he also became an apprentice-level necromancer, and the remaining four believer ghosts were also tempered in negative energy.

The ghost of the believer was controlled by Professor Zheng Lao and slowly entered Zhou Qingfeng's body. After making sure that the danger was gone, Ciric scolded angrily, "Boy, are you trying to kill me? Is there some kind of scheme? You are delusional! ”

Zhou Qingfeng was too lazy to deal with Ciric. Professor Zheng, who had been transformed into an apprentice of necromancy, said in a whisper: "This transformation is really a rare practical experience, and I already understand how to absorb and store negative energy.

In addition, I feel that the evil god that lies within you seems to be very sensitive to the impact of negative energy. We can do more experiments in this area in the future. ”

Zhou Qingfeng held the inky black 'Emperor's Tears' and replied calmly: "It's strange, Ciric is an evil god. He actually overreacted to negative energy so violently, which was really something I didn't expect before. ”

But Shirek also shouted viciously: "Victor. Hugo, I warn you gravely. You'll have to stop doing any more experiments related to the necromancy, or I'll blow myself up and drag you to die with you. ”

This made Zhou Qingfeng dislike to hear it.