The Red Clay Ridge is mountainous, and rivers often run through it. Rivers run from west to east, passing through forests and valleys, often forming alluvial plains, which is how Qingsuyuan was formed.

Qingshuiyuan is located on the eastern side of Hengshan, which is an open alluvial plain, but because it is surrounded by forests, there are not many people here. Grom didn't know how he became the master of the plain and built the magic tower here.

Approaching Qingsuwon, Mark sees Grom's Magic Tower.

"After all, Grom, this magic tower is also considered top-notch in Roland City."

Instead of the Empire's rewards from the last war, Grom's Magic Tower uses more advanced materials. These materials are unobtainable to ordinary magicians, and they are invaluable. Mark estimated that just from the appearance, the magic tower of Grom was worth at least one million gold coins!

In the setting sun, Mark slowly walked into Qingshuiwon. Unlike other towns in Hongtuling, Qingshuiyuan is shrouded in darkness and is not inhabited by ordinary people. A faint mist floated above the Qingshui Plain, and under the mist, the bluestone city wall stood, and many buildings could be seen inside the city wall, and those buildings were also made of stone!

"Boom...... "Someone rode towards Mark, and when he got closer, Mark saw that it was the undead knight!

Undead Knight, a third-level undead race, powerful and even able to reach level six. They rode skeletal horses, held bony spears, and looked at Mark with hollow eyes.

"Three undead knights, it looks like Grom has advanced."

Mark is well aware of Grom's talent for necromancy, and the reason why Grom has stayed in the realm of a second-level magician for decades is probably because he was dragged down by zombie experiments. At the time Mark left, Grom was already a second-level peak magician, and it was not surprising that he had broken through now.

"Grom, the old man is visiting." Mark took off his mask and said to the Undead Knight. The undead knight's eyes flickered with fire, and soon, they got out of the way.

Mark nodded and walked into town. He was shocked to find that there was not a single living person in the town! The figures in the town all had the smell of death on their bodies, without the slightest hint of life.

"Is this a zombie?" Mark looked closely at the sluggish figures and wondered if Grom's experiment had succeeded. Eventually, he discovers that they weren't zombies. Although a zombie is a dead creature, it is also a creature, and he has biological instincts. These figures are not, they are more like a kind of puppet.

"Mark, you're finally here!" In the middle of town, Mark saw Grom coming with a smile on his face, "I knew you would come to me!" ”

"Oh, everyone else thinks I'm dead, Grom, why do you think I'm alive?" Mark asked rhetorically.

Grom smiled faintly, his skin was against his bones, and his expression was a little terrifying when he smiled.

"I know you're not going to die that easily. It seems, I guessed right. Grom said.

"You've looked up to me, Grom, it's just luck that I'm back alive this time." Mark said half-truthfully, "It's you, I have to congratulate you on breaking through and becoming a third-level necromancer." In a sense, a Level 3 necromancer is more terrifying than a Level 4 ordinary magician. ”

Grom smiled faintly: "If someone else said that, I would definitely accept it with peace of mind, but Mark, if you say that, I will only be ashamed in my heart." Compared to you, what is my breakthrough? You were only a first-level magician more than nine months ago, but now you are a fourth-level magician, and your strength is far superior to mine. ”

Shocked in his heart, Mark looked at Grom to confirm what he meant. However, Grom was always smiling, and Mark couldn't tell what was going on in his mind.

"Grom, how do you know I'm level four?" Mark asked cautiously.

Grom didn't answer, and Mark didn't ask again. However, he became increasingly wary of Grom. Being able to easily perceive his realm, Grom is definitely not simple.

"Don't worry, Mark, I have no ill will towards you." Grom sensed Mark's attitude and slowly explained, "If I had malicious intentions towards you, I wouldn't have told you about necromancy. You should know the value of the necromancy I gave you! ”

Mark nodded, indeed, when he and Grom had a magical exchange, Grom didn't hide his secrets, and what he told Mark was very valuable information, including how to perceive the world of death. Mark has an average talent in necromancy, but he still feels the world of death with the realm of a fourth-level magician, and there is Grom's contribution here.

Mark and Grom arrive at his magic tower, and Grom enthusiastically shows Mark his experimental works, the puppeteers.

"Mark, I've been researching zombie making for more than thirty years, and I don't have a clue." Grom said with emotion, "It wasn't until later that I learned the scientific research method from you, and I didn't make a breakthrough recently. I have to say that this scientific research method has really opened a new door for me! ”

"Grom, you're welcome, we're just communicating normally, don't forget, I also learned necromancy from you." "But then again, you're a quick learner and you've mastered the essence of scientific research in such a short period of time." ”

The so-called scientific research method is very simple and ordinary for people living in the world of science and technology, which is nothing more than establishing research questions, eliminating non-essential phenomena, collecting data, generalizing, creating hypotheses, proofs, etc., this set of methods is not profound, but it is very effective.

Of course, the research methods used by the magicians of this world are not inferior to those of scientific research, especially those advanced magicians who have gone far in exploring the nature of the world, and some have even become gods! Unfortunately, this type of method is difficult for low-level mages to use, compared to scientific research methods.

Mark learned a little about Grom's research, and it has to be said that any magician has the potential to become a top scientist. It's amazing that Grom was able to develop and apply those principles just by knowing a few words from himself!

"It's a pity, I'm still one step behind." Grom suddenly sighed, "I've been experimenting for a long time, but I haven't been able to create a real zombie. You see, the ones out there are just undead golems. ”

"So, Grom, do you know what the problem is?" Mark asked.

Grom lowered his eyebrows and said, "I can transform corpses into zombie bodies, but I can't give them zombie souls." Giving zombies souls is something that can only be done in the dead world. ”

Mark understood what Grom meant, in the legends of this world, generally speaking, life will enter the world of death after death, and some can be transformed into undead races, skeletons, undead knights, zombies, etc., all belong to this category. Despite being a race of undead, they also have souls, but souls are different from ordinary lifeforms.

"You can't give souls to those corpses, which means you can't bring them back from death......," Mark's eyes flickered, the problem he encountered was the opposite of Grom's, Mark was able to use corpse poison to bring those corpses back to life, but he couldn't maintain their zombie bodies. In his experiment last night, the militia leader was transformed into an undead creature, but instead became a skeleton. Later, Mark directly broke his soul and refined him into a puppet.

Grom didn't notice the change in Mark's expression, and continued to introduce his work to Mark. Mark saw that there were seven or eight hundred puppets in the basement at the bottom of the magic tower. According to Grom, these are his achievements for more than three decades.

"Grom, can you puppets send me some, I want to look into it too." Mark seemed nonchalantly making his request.

Grom was stunned for a moment, and his attitude quickly became cold.

"Mark, your request makes it hard for me." Grom Road.

"I know, but Grom, you know my situation." Mark said.

Grom nodded: "If Horner knew you were still alive, he would definitely not let you go." Not only him, but the royal family of the Romance Empire also wants to get rid of you. The royal family is powerful, and you can't hide for long. ”

"Exactly. Only by refining zombies can I have a chance of survival! Mark said, "I am not asking you for anything, but I am exchanging with you according to the custom of magicians." I think you'll be interested. ”

Grom said, "What did you exchange for me?" ”

"Scientific research methods are more advanced theories!" Mark said, with a strong sense of confidence in his tone.

"A deeper theory?" Grom hesitated, as a practitioner of scientific research methods in the wizarding world, he knew the value of this research method best. It may not be of much use to high-level mages, but to low-level mages, it is no less useful than any treasure!

"This theory won't disappoint you, Grom, you see, it's a credit that I was able to break through in such a short time!" Mark said with a sincere face.

Grom raised his eyebrows slightly, he didn't believe Mark's words at all, from a first-level magician to a fourth-level magician in nine months, Mark must have had a shocking adventure. But this adventure certainly has nothing to do with scientific research methods.

"Mark, I can give you a zombie puppet, and even tell you about my research results, but in addition to scientific research methods, I want you to owe me a favor!" Grom thought about it for a moment and said.