Back at the county office, Li Mu wrote notes, wrote the process of the case, and then looked out the window, reminiscing, thinking, thinking about what he had missed.

In the world, there are no detectives, but more cautious observation, looking for clues, bold assumptions, careful verification, and psychological deterrence.

"Who the hell is the murderer?"

Li Mu recalled.

Suddenly, the wind sounded, and a dark shadow appeared.

Li Mu was slightly nervous, and subconsciously wanted to pull out the sword next to him to defend himself, but he was just a scholar, just an acquired layer, but it was a little stronger than the power of the unrestrained chicken, the strength was limited, and it was better not to draw the sword than to draw the sword.

Said lightly: "Who is coming?"

"Retreat, it's me!" At this moment, a man in black appeared, and the black cloth on his face was removed, revealing the appearance of a delicate woman.

"It's you!

Li Mu breathed a sigh of relief.

"Are you hungry?" Li Mu said.

"Retreat, no need!" Liu Qingchan asked.

"How are you doing on the mountain lately?" asked Li Mu.

"There is a glass workshop, business has been good recently, this is the account book!" Liu Qingchan said, took out the account book, and handed it over.

Li Mu took the account book, just looked at it roughly, just put it aside, and didn't care too much.

Money is not omnipotent, power is omnipotent, he believes that the brothers and sisters of the Liu family are not so short-sighted. In fact, the people who mix the rivers and lakes, except for some fledgling people, may be a little stupid, most of the people in the rivers and lakes are extremely shrewd, and those who are not shrewd have long died.

"You're just in time for two murders. But what did you do on the mountain?" Li Mu asked, with a questioning and murderous tone in his tone.

Once there is a murder, those ruffians and hooligans, those bandits, etc., are the first to be suspected, and they do not let go of the murder.

Black Fox Ridge has a criminal record.

"No! No!" Liu Qingchan was flustered, and in a panic, he explained: "Our cottage is usually mainly on the cottage, farming to make a living, occasionally hunting, and taking some mountain goods to make a living. Or set up checkpoints on the side of the road, charge some protection fees, and rarely harm people!"

Black Fox Ridge has survived until now because it is low-key.

If you don't move the officials, you will make fewer murders, and as a result, the six doors are too lazy to do it, or after doing it, the gain is very small, and it is not worth doing.

Li Mu observed with a micro-expression, and breathed a sigh of relief, it was really not them who did it.

"There have been two murders recently!" Li Mu said the details of the case, and asked again: "Qingchan, what do you think?"

Liu Qingchan said: "Let's go see the corpse first!"

"Okay!" Li Mu nodded, saying that action is action, without delay, carrying a lantern, and taking Liu Qingchan to the morgue. The body has been pretended, but it has no head, and it can't be identified, so it can't be investigated.

Opening the coffin, Liu Qingchan stepped forward directly and checked it with a silver needle.

"This deceased is a martial artist, about the fourth layer of the day after tomorrow, cultivating iron sand palms, and the tiger roars golden bell jar!" Liu Qingchan stepped forward, looked at the corpse, and finally said.

Li Mu said: "How can you see it!"

Liu Qingchan said: "If you retreat, you are not a martial artist, so you naturally can't see it." You see his hands, exuding a dark red, which was formed by cultivating iron sand palms. There is also a much stronger body than ordinary people, there are traces of martial arts on his body, and he has cultivated the Tiger Roar Golden Bell Jar. The tiger roars golden bell jar, which is divided into four layers, iron body, copper body, silver body, and gold body. In front of him, this deceased's body is different from ordinary people, and it has condensed into an iron body!"

Li Mu was silent: "Martial artist, is it a martial vendetta? In this world, there are many martial artists?"

"It's hard to say!" Liu Qingchan said: "The big is hidden in the wilderness, and the small is hidden in the city, maybe a singing uncle is a strong grandmaster, maybe an old farmer who farms the land is a great grandmaster, or a civil official is a congenital martial artist, and a show may be a congenital martial artist." I can't say for sure!"

Li Mu said: "Tiger roaring golden bell jar, what are the characteristics!"

Liu Qingchan said: "The Tiger Roar Golden Bell Jar belongs to the yellow-level exercises, the grade is not high, it is easy to get started, the requirements for martial arts qualifications are low, and there are many rumors among martial artists. From this exercise, you can't see the sect of the deceased!"

"Is there a Tiger Roaring Golden Bell Jar Technique?" Li Mu asked.

"Yes!"

Leaving the morgue and arriving in the study, Liu Qingchan wrote the exercises of the Tiger Roaring Golden Bell Jar on the spot, which was only a few hundred words.

Li Mu looked at the exercises and frowned slightly.

Tiger Roaring Golden Bell Jar, the grade of the exercises is very low, just the yellow-level exercises, the biggest advantage of the yellow-level exercises is that the entry is simple, and the qualification requirements are low. But with the Tiger Roaring Golden Bell Jar, he cultivated to the state of the golden body, and condensed into the incorruptible body of King Kong, which was not inferior to any heaven-level exercises.

The disadvantages are also obvious, easy to refine and difficult to refine.

When they woke up the next day, Li Mu and Liu Qingchan had just finished breakfast, and the official came with the news that the missing head had been found.

"Head, where?"

Li Mu asked.

The inspector said: "Tell the county honor, with the crime scene as the center, a search was carried out within a radius of 100 miles, and then it was found in a ravine!"

"Who is the deceased?" Li Mu asked.

"It's a native of this county, a butcher, known as Zheng Butcher, who has three shops at home, a wife, and three concubines, and is a good person, and often helps his neighbors!" said the inspector.

Li Mudao: "Now, go to the scene of the crime, and by the way, go to Zheng Tuhu's house to understand the situation!"

An hour later, I arrived at the scene of the crime.

The scene of the crime was a valley, and there was a river in the valley, and in the grass of the valley, the head of Zheng Butcher was found. It's also fortunate that he wasn't taken away by the wolf, otherwise he would never have been able to find the identity of the deceased. After all, in this era, the household registration system is too simple, and there is no ID card.

According to the statistics of the imperial court, there are tens of thousands of households in a county, not tens of thousands of people.

The inspector said: "Here, find a pig-killing knife, which belongs to Zheng Butcher!"

As he spoke, he handed over a pig-killing knife.

Li Mu stepped forward and observed for a moment that he couldn't see why.

Liu Qingchan stepped forward and flicked it, shook it again, felt the weight and said: "Good knife, good knife! This pig-killing knife is made of thousands of steel!"

"Thousands of steels are treasures that are hard to find for innate martial artists!" Liu Qing said: "The grade is far above ordinary steel!"

Li Mu grabbed the pig-killing knife and immediately felt extremely heavy, "The density is a bit large, it's not ordinary steel...... It can't be compressed steel!"

It suddenly occurred to me that this world is backward in many aspects, but in smelting and weapon manufacturing, it is leading, with alloy steel comparable to later generations, and even surpassing.

The basin was removed and a simple and rough density test was performed, which resulted in a density of 10.5 for the pig killing knife.

Recalling the knowledge of steel in the previous life, the density of steel is 7.9, and it may be carbon steel, and other alloy steels are fluctuating up and down, and the floating rate is only a few percentage points, and it is very rare to rise directly to 10.5.

Compress steel!

In essence, steel can be compressed, and the compressed steel has excellent performance in terms of hardness and other properties.

The so-called thousand steels are essentially compressed steel.

Liu Qingchan said: "Above a hundred steels, there are thousands of steels, and above a thousand steels, there are ten thousand steels, and it is said that there are better steels, but the quantity is scarce, and only a few general trends have them!"

Li Mu took off a piece of hair, put it on it, blew on it, and immediately broke the hair; he took out another iron ingot, and with a slight wave, the iron ingot broke immediately, like cutting tofu.

"Qingchan, what do you think?" asked Li Mu.

"Zheng Butcher is the fifth layer of the day after tomorrow, he arrived with a weapon, and then he confronted the murderer, and his neck was cut off with a knife, and then his body was kicked into the river, and his head was discarded here at will...... It was a homicide. It's just that the battlefield here, without the slightest disguise, is obviously extremely confident...... I'm afraid that if I leave here, I won't hit it and I'll be thousands of miles away. ”

Liu Qing Zen Dao.

Li Mu was silent and thought of Li Bai.

Ten steps and one killing, a thousand miles without staying.

After the murderer kills someone, if he misses a blow and runs away thousands of miles away, and wants to arrest the criminal, it will be a big trouble.

"I also overlooked one point, it may be that Zheng Tuhu's acquaintance brought him here!" Li Mu said: "Ordinary martial artists don't have weapons forged from thousands of steels. Without a special channel, it is simply impossible to obtain such a weapon!"

In any world, weapons are regulated.

Special steel, without special channels, simply cannot be obtained.

"The identity of Zheng Butcher is not simple, not simple!" Li Mu said, leaving the scene of the crime and going to Zheng Butcher's home.