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President Yu told Chu Ge that this is a special reagent for parasites and microorganisms.

Because of the different ecological environments of the Immortal Cultivation World, the Magic World, and the earth, there are many unique parasites and bacteria in the three worlds, and even some very common microorganisms, such as E. coli, have produced many variants.

No matter the earthlings, immortal cultivators or magicians, they all carry large bacteria and parasites on their bodies. If they travel to another world, these bacteria and parasites will be brought along with them.

Then, as long as you find biochemical reagents that are very sensitive to these microorganisms and contact each other, you may have an allergic reaction, thereby determining the identity of the other party.

Even, with enough information, it can be accurate to the other party's hometown.

Because the world of cultivating immortals is actually not a complete world, but countless "islands" connected together by teleportation arrays. Each island has a unique ecological circle that is small but complete. Many bacteria and parasites also have different forms. vary.

For example, Dongman? Tie Zhu's hometown "Hundred Wastelands" and the little Palace Master's hometown "Luofeng Mountain" all have unique features, animals, plants and microorganisms, all of which can be tested.

And this time...

"Oh no."

President Yu looked at the spray used by the technician and sighed, "Judging from the reaction of microorganisms and parasites, the other party comes from the 'Fire Market' in the world of cultivating immortals."

President Yu told Chu Ge that Yanxu is a place very close to the inner circle of the world of cultivating immortals. There used to be a splendid civilization and several great sects that were very prosperous for a while, so that many cultivators who traveled to the earth were I have heard its great reputation.

However, the good times didn't last long, maybe it was the ups and downs of the spiritual tide that caused the drastic changes in the world. In short, the Yan Ruins had collapsed hundreds of years ago, and turned into a terrifying area full of volcanic eruptions, magma flowing, sulfur smell and mutated beasts everywhere. , Just like the Hell of Fire in myths and legends, even immortals regard it as a place of poor mountains and bad waters.

Troublesome people emerged from poor lands and evil waters. After the collapse of the once prosperous giants, countless vicious demons and heretics were born on their corpses, and they marched around with ambitions—it was like countless wandering soldiers after the regular army collapsed Become a warlord, a mercenary, or a gangster.

Therefore, for more than a hundred years, the evil cultivators from Yan Ruins have always caused headaches for the entire immortal cultivating world.

Different from the "Hundred Wilds" who are also poor and poor, they lack resources from the very beginning, their development level is extremely low, and they are in the stage of primitive tribes. The fierce people like "Dongman? Tiezhu" are more than arrogant and not enough treacherous.

However, the evil cultivators of the Yan Ruins have outstanding wisdom, cunning strategies, supernatural powers, secret techniques and powerful magic weapons passed down from ancient times. Therefore, they are a hundred times more dangerous than the wilderness barbarians.

"It turned out that an evil cultivator from the Yan Ruins traveled to Lingshan City. I don't know how long he has been dormant and how much knowledge he has absorbed from the earth. This is something bad!" President Yu said worriedly.

The discovery in the rental house confirmed her judgment.

Although most of the space is full of messy garbage and rags,

But a desk in the corner is quite tidy. There are piles of seemingly inconspicuous old books on and under the table.

From the left hand are dictionaries and elementary school textbooks.

When I opened it, I found that every page was densely filled with small characters, and the strokes looked immature, but there was a bit of muscle and bone. The appraisal results of the technical staff of the forensic department showed that the ink was very new, and it should have been left within a year.

In other words, it was all written by that "Yan Luo". He used dictionaries and elementary school textbooks to study the characters on the earth seriously, and even copied every textbook hundreds of times.

At first, he could still see a bit immature, but gradually, he was able to write simplified characters as handsome and elegant as Xiuxian runes. Even many native earthlings, such as Chu Ge, could not write such beautiful characters.

Then, he started learning about computers and surfing the Internet.

The first textbook I used was called "Learn to Surf the Internet in Thirty Days—Teaching You to Be a New Human Being".

The technical staff of the forensic department carefully opened the textbook and read it:

"Boys can call themselves gg, girls can call themselves mm, the moderator is called Banzhu, the expert is called prawn, goodbye is called 886...

"Example sentence: Hey, what a coincidence, you also surf the Internet, I'm gg, are you mm?"

"What the hell is this?" Chu Ge was completely taken aback. What age textbooks are these!

"This is a textbook from a long time ago, when the Internet was just emerging. From this textbook, it can be seen that the other party is definitely a cultivator."

President Yu said solemnly, "Children on the earth have been surrounded by the Internet since childhood, and the speed of information update is extremely fast. I don't understand the development of the earth and the Internet at all, and it is impossible to ask these strange questions to outsiders, so I randomly found a seemingly basic textbook to study.

"However, he learns very quickly, you can read this textbook again."

Chu Ge glanced at it and took a deep breath. The other textbook is "JAVA from Beginner to Master".

I opened it and saw that the first dozen or so pages had notes, which were exactly the same as the handwriting in the elementary school textbook.

But it can be seen that this "Yan Luo" is not very good at object-oriented programming. There are a lot of question marks in the notes. .

"It shouldn't have been more than a year since this guy traveled here. At the beginning, he learned how to 'surf the Internet', but now he has started to learn JAVA. His wisdom, forbearance, and learning ability are evident."

President Yu frowned deeply, "Even if he can't learn how to program, at least he is familiar with most of the common sense on the earth, and it must be no problem to pretend to be an ordinary earthling. Such a person has been hiding under our noses for so long. It’s terrifying that we don’t know anything about it!”

Indeed, the threat of immortal cultivators is not simply based on the number of levels.

If it was Dongman Tie Zhu, a guy with well-developed limbs and a simple mind, even if he had the strength of the alchemy stage, he could always solve the problem by mobilizing an army to bombard him indiscriminately.

But such an insidious and cunning person like "Yan Luo", who hides in the city and has ulterior motives, even if he only has the strength of the foundation establishment stage, he comes and goes without a trace. Using the army to deal with him is like shooting mosquitoes with anti-aircraft guns. arrive.

And a series of evidences discovered next quickly confirmed that this gentleman was indeed not a law-abiding and kind person, but an extremely dangerous evil man.

Those were translucent cans filled with organs soaked in formalin.

Open a pile of garbage, you can see hundreds of such jars, hearts, livers, spleens, lungs and kidneys, all kinds of deformed and twisted organs, like a bloody nightmare.

In such a terrifying scene, several special police officers couldn't help but faintly vomited, and Chu Ge also felt dizzy, as if a few pieces of rancid minced meat were stuck in his throat and eyes.

The good news is that many organs do not come from humans at first glance, but livestock such as pigs, dogs, cattle and sheep.

The bad news is that some organs are still of unknown origin and full of tumors, which seem to have special research value.

Among the second-hand books collected by "Yanluo", many of them are related to human anatomy and oncology.

Moreover, it seems that he is very interested in the field of "spontaneous human combustion", and has collected many books on this topic.

At this time, there was an exclamation from the bedroom.

Chairman Yu and Chu Ge rushed in to check, and found that the technical staff of the forensics department found a dead body under the raised bed.

Under the bed, the ground is covered with dense runes, as if the rune ink is made of blood mixed with special animal fat, and it actually outlines a three-dimensional effect on the plane. The light of thousands of runes is still shining, interlaced from a flower Burning red lotus.

On top of the red lotus is a black charred corpse, burned to the size of a doll, but without any twisted posture of painful struggle, just like a person who has been reduced in proportion and painted black, sitting cross-legged on the fire. On the lotus talisman array, there is even a bit of seeking benevolence and gaining benevolence, and there is a taste of joy and joy.

"Is this 'Yan Luo'?" Chairman Yu asked the technician of the forensics department in a low voice.

I'm afraid not.

Forensics technicians extracted a small piece of fabric from the charred corpse, and quickly analyzed the material.

This is a fiber from a middle school uniform. Primary and middle schools in Lingshan City will use this material to make school uniforms.

Moreover, judging from the analysis of the teeth of the charred corpse, he was very young and had received orthodontic treatment before.

This is an Earth boy.

Maybe it was because of Yan Luo's rhetoric that he tricked her into a rented room.

But he was not as lucky as Ye Feng, but was burned to death by Yan Luo.