Just when Bo Ge and others were quarreling, Zhao Yuan came to the place where something happened.

The scene was in a mess at this moment, and the air was filled with a stinking smell of leather. The body had been cleaned up and placed on the ground and covered with white cloth. The guards outside could at least identify their appearance after they died, while the Ming Dynasty officials inside were burned to charcoal and could not tell anything at all.

Originally, as the first scene of the incident, it should have been properly protected, but suddenly, those who came to put out the fire and those who moved the corpse, almost all possible evidence had disappeared without a trace at this moment.

However, Zhao Yuan still did not give up and walked around the crime scene. He really found some discoveries when he walked, and found a broken half of the blade in the grass.

After picking up the blade, Zhao Yuan looked at the surrounding environment again before leaving.

At night, Zhao Yuan quietly came to the blacksmith shop and found Wugang.

As soon as he entered the door, Wugang said, "Sir, something happened to those who came from the court."

Zhao Yuan nodded and sat down, saying, "Yes, overnight, hundreds of people were killed. They were killed. I guess it should be a temporary idea, not a plan that had been planned long ago. The degree of frame-up was relatively large."

Zhao Yuan has thought about this carefully. If he really wants to provoke a battle between the Ming Dynasty and Urianha, he doesn’t have to wait for them to arrive at Hongluo Mountain before taking action. It would be very dangerous and would be easily exposed.

Of course, it is not ruled out that the Tumots took action.

As he said that, Zhao Yuan took out the half-cut blade in his arms and said, "This is the only half-cut blade I found on the scene. It seems that this style should be the knife used by the Urianha people. Look at it and see if you can see what you can see from this knife."

Wugang took the Broken Blade, nodded, and shouted into the room: "Zhao Yi, come in!"

Upon hearing this, a big man walked in, looked at Zhao Yuan, then looked at Wugang, and said, "Sir, the shopkeeper, what are you asking?"

Zhao Yuan was slightly surprised.

Wugang immediately explained: "This person is my confidant and his own, so he also knows the identity of an adult."

Wugang handed over the broken blade and said, "Looking at this half-broken blade, you can see what you can see."

Zhao Yi took the knife, looked carefully, and said, "This knife comes from the Ming Dynasty."

Wugang said in surprise: "Ming Dynasty? Did you read it wrong?"

Zhao Yi said very surely: "Absolutely nothing wrong, and the shopkeeper, look."

Zhao Yi pointed to the broken blade and said, "This is Baogang's method. With Urianha's current casting skills, they can't do this."

In the era of cold weapons, swords, as the main weapon, are the most important skills. A good sword sometimes takes one year or several years.

The earliest steelmaking process in ancient times was: first using charcoal as fuel, smelting iron ore into a sponge-shaped solid block in the furnace, and taking it out after the furnace is cold, which is called block iron smelting. Block iron smelting has low carbon content, soft texture, and many impurities, which is the cooked iron obtained by humans in the early days. Then block iron smelting is used as raw material, heated in carbon fire to absorb carbon content, increase carbon content, and then forged to remove impurities and seeped into carbon, thereby obtaining steel. This kind of steel is called block iron smelting carburized steel.

Although the knife made of iron-making permeable carbon steel is relatively sharp, it still cannot reach the level of "cutting gold and jade, cutting iron like mud". Because the quality of this steel is not good enough, it is very difficult to master the amount of carbon seepage in, whether the distribution is uniform, and the degree of impurities removed, and the production efficiency is extremely low. In order to improve the quality of steel, ancient Chinese craftsmen invented a new process of "making steel for hundreds" since the middle of the Western Han Dynasty.

The so-called "Bai Steel Fencing" means repeatedly heating, folding and forging the block of iron to make the steel denser, uniform composition, and reduce impurities, thereby improving the quality of the steel. The sword made of Baili Steel Fencing is of high quality.

"" means to refine. This is the earliest product of the type of steel excavated so far. Scientific inspections show that this steel knife has a relatively uniform carbon content, and the blade has been quenched, and the impurities contained in modern cooked iron are similar. There are many varieties of steelmaking, which are found in the records: "Five Refines", "Nine Refines", "Thirty Refines", "Fifty Refines", "Seventy Refines" and "Hundred Refines". The specific meanings of the specific numbers in the preceding word refinement are studied.

The scholars generally believe that it refers to the number of heats, that is, how much fire has been refined. Shen Kuo, a famous scientist in the Northern Song Dynasty, described the process of making steel in Cizhou for hundreds of steel in "Mengxi Bitan", which was to burn more than a hundred times in a row until the pound was not reduced. Cao Cao once ordered the officer to make five "Bai Pi Knifes", which in "Inner Commandment" called them "Hundred Refining Tools". Sun Quan had three precious swords, one of which was called "Bai Lian". Pu Yuan was a treasure sword made by Liu Bei, engraved with "Seventy-Two Refinings".

By the middle and early Ming Dynasty, the casting process of swords made great progress, and the rotary welding process had been quite successful. The craftsmen had fully mastered the production method of Damascus blades spread from Central and Western Asia, and at the same time improved it, and there were technologies such as rotary welding embedded steel and rotary welding horse-tooth clamping steel. Moreover, the steel-blocking process was maintained in the Ming Dynasty, but it was mostly used on precious swords.

Zhao Yuan didn't know about these things and said in confusion: "Don't Urianha have blacksmiths, so they can't do it?"

Zhao Yizhong nodded and said, "Yes, this kind of craft is generally used directly on precious swords, and even ordinary swords equipped by the court will not be used."

Zhao Yuan was silent for a moment, picked up the half-cut blade and said, "A high-level sword, that is to say, this sword was cast for Urianha in the Ming Dynasty?"

Zhao nodded and said, "Looking at the wear of the knife, it probably has been used for several years, and there is a mark above the blade, please see!"

Zhao Yi pointed at the blade, and Zhao Yuan must have looked at it. Sure enough, there was a pattern engraved on it near the tip of the blade. When he looked closely, it was like a bamboo leaf, and he said in confusion: "Bamboo leaf?"

Zhao nodded and said, "Yes, it's bamboo leaves. As far as I know, part of the swords equipped by the soldiers of the Ming Dynasty came from the sword factory under the jurisdiction of the Ministry of Works, and the other one came from the people. In order to ensure the quality of these swords, if there are problems, it is easy to hold them accountable. The Qin family in Shanxi will be marked with bamboo leaves."

Shanxi produces coal, which has led to the development of smelting. The Qin family in Shanxi is a well-known representative. Unlike the Liu family, the Qin family in Shanxi is mainly the court. In addition, Datong is also a military center of the court. The Qin family is responsible for the logistics supply of weapons, which has also saved a lot of distance.

Zhao Yuan's brain circled quickly and said, "Weapons are controlled by the court. Without the permission of the court, the Qin family would not dare to sell weapons to Urianha and others privately. Even if they were sold, they would not have their own marks engraved on the sword. Therefore, these swords should have been purchased from the court by the legitimate means and then allowed to be produced by the Qin family. In addition, such high-end swords are not something that ordinary soldiers can use, that is, at least they belong to some powerful person?"

Wugang thought carefully and said, "There is also a possibility. I can send a letter back and investigate whether the Qin family has supplied Urianha swords and the like in recent years. If there is any, there will definitely be records. Then you can follow the clues and see who the swords have been rewarded."

Zhao Yuan nodded and said, "There is another point. You should also master this method of casting in Baosteel, right?"

Zhao Yi said proudly: "Of course, my master is a famous sword-making master."

Zhao Yuan said: "Okay, you will start to shout hard tomorrow and promote your casting method."

Wugang's face lit up and he said, "Are you planning to lure the snake out of the hole?"

Zhao Yuan said: "Yes, if the sword made by the Baosteel Technique is a high-level sword, the master of the sword should be more caring about it. In fact, it can be seen from this that if the sword is damaged, he will feel extremely distressed. If there is no craftsman to repair it, then he can only find other people. In addition, this matter is a hot topic. You are just an ordinary blacksmith shop, and no one will connect you with those Ming Dynasty envoys. Perhaps it will make him feel alert."

As long as the master of the sword is found, who attacked the Ming Dynasty envoys, wouldn’t he be ready to come out?

Wugang smiled and said, "Sir, wise, by the way, should we report this to the court?"

Zhao Yuan thought for a while and said, "Report it truthfully. Report the matter of the broken sword together, so that the Qin family can check when the sword will be sent, but don't mention me."

Zhao Yuan doesn't want to reveal his whereabouts yet.

Wugang was immediately happy. Zhao Yuan was unwilling to mention him, which means that if the case could be solved, the final contribution would be to him and a group of brothers. He quickly bowed: "Thank you!"

Zhao Yuan waved his hand and smiled, "It's all his brothers, why are you polite? But you have to be careful."

"yes!"

Wugang immediately agreed, silent for a moment, and said, "Sir, we have received the news. The commander seems to be still looking for you everywhere, this..."

Zhao Yuan didn't expect that Lu Bing was still looking for him. He was silent for a moment and said, "No need for now. I will go back to Beijing and ask the adults to apologize."

Wugang said: "Yes!"

After Zhao Yuan turned around and left, he went straight back to his tent. Cang Wushuang greeted him and asked, "Do you find anything?"

Zhao Yuan said: "Yes, I found the half-cut blade and sent it to the blacksmith shop. I found that the half-cut blade came from the Qin family in Shanxi."

Cang Wushuang said in surprise: "The Qin family in Shanxi? Well, as far as I know, the Qin family in Shanxi is indeed casting knives for the court. Their skills are also superb, and they are not the same as the Liu family, and each has its own advantages. In the past few years, the court had a good relationship with Urian Ha, and it is probably only possible to trade at that time."

Zhao Yuan nodded and said, "Indeed, in addition to this, the half-cut blade was made of the Baosteel method. Wugang and others said that only people with noble identities can use it. I have already seen if they can use methods to lure people out."

Cang Wushuang said, "Are you planning to lure the snake out of the hole?"

Zhao Yuan said: "I'm a plan. Whether it's okay or not is still a question. I won't talk about this anymore. I suddenly feel so depressed that I might as well go out for a walk?"

Cang Wushuang was happy and said, "Why don't we compare our legs? I'll give you a stick of incense!"

Zhao Yuan said: "That is needed, how about together?"

Cang Wushuang chuckled and said, "Okay, I'll leave first!"

As he said that, the person flashed and flashed out of the tent, Zhao Yuan followed closely behind.

The two of them ran straight outside one after another. At this moment, both of them fully used their own body skills and increased their speed to the extreme. Hongluo Mountain was already very cautious because of the attack of the Ming envoys, but with their eyes, they could not see the two of them clearly.

In a moment, the two of them ran out of Hongluo Mountain and rushed towards the place where Cang Wushuang and Su Fei were staying that day. Under the moonlight, the two of them seemed to have faint shadows.

Soon, the two arrived at the place where they stayed with Concubine Su that day. Cang Wushuang arrived first, giggled and said, "How is it? Are you not as fast as me?"

Zhao Yuan then arrived, hugged Cang Wushuang's waist, and said, "No matter how fast you run, I will catch you up."

Cang Wushuang's eyes were a little charming, and water seemed to drip from her eyes, and she said, "I'm catching up with her, what do you want?"

Zhao Yuan stretched out his hand, gently took off the gauze on Cang Wushuang's face, looked at her charming face, and said, "What do you think?"

Cang Wushuang said, "I am my daughter's family, how can I say it? You are not up to you now. I have no strength to run so far just now."

This was already unreal. Even an idiot, Zhao Yuan understood this. He couldn't help but feel a sensation in his heart. The previous depression had long disappeared without a trace and slowly kissed Cang Wushuang's red lips.

A shy blush surged on Cang Wushuang's face, and he slowly closed his eyes, like a delicate flower, letting you pick it.

"Ahem cough cough..."

As the two of them were about to meet their lips, a gentle cough suddenly came from their ears.

The two of them were like frightened rabbits, and quickly separated. Cang Wushuang quickly hung up her veil and looked at the place where the sound came from, and found that the one who coughed was actually the Dao Sheng Tianmu.

Seeing the two of you looking at him, Tianmu coughed gently and said, "You two are really embarrassed. I just saw two masters running out of the city. They were itchy in their skills and chased them up. Unexpectedly, it was you two, disturbing them."

Cang Wushuang and Zhao Yuan suddenly felt a sense of laughter and crying. The two of them were at the moment when they were in love and had a strong relationship.

After sorting out his mood, Zhao Yuan bowed and said, "Senior."

Cang Wushuang glared fiercely and said, "Why are you still here? You are not going to travel around? Why don't you stay in Hongluo Mountain and not leave?"

Tianmu smiled and said, "That's right, that's right, okay, you two continue. Old man, I'll take a step first, say goodbye, say goodbye!"
Chapter completed!