When he arrived at the farm, Li Chengqian first found Uncle Ma and asked him to secretly gather the threatened craftsmen.

"Everyone, Uncle Ma should tell you that even if you meet the other party's requirements, the safety of your arrested relatives is the most important! You don't have to have any burden, even if they know the production process of glass, it will not have any impact on us."

"Your Highness, does it really have no effect on you?"

"Your name is Liu Dazhu, right? Uncle Ma told me that your son was kidnapped by them, just agree to their request. But you, and you, so do you. Be sure to pay attention. Only when they let people go can they give them the skills, otherwise I am afraid that they will not keep their promises!"

Li Chengqian is not unaware of solving these problems through official channels, but countless facts have proved that if the official intervenes, it will be somewhat damaged. What's more, it is still in ancient times, but it is not as developed as the technology in later generations!

Therefore, Li Chengqian could only let Dugu Yun investigate secretly while allowing the craftsmen to meet the requirements of those people.

As for the glass making process after it was leaked... Li Chengqian smiled sinisterly, and he wanted to see what the other party could do!

...

"I want to see my son first, otherwise I will not hand over the glass craftsmanship to you even if I die! I am not afraid to tell you that I am a craftsman in charge of a special glass making, and I am the only one in the entire glass factory. You can't get this craft from others except me!"

Somewhere outside Chang'an City, Liu Dazhu faced seven or eight strong men with swords opposite each other alone, but was not timid in making arrangements with the other party.

"How do I know you're not lying to us?"

"This is part of the craft I can do, you can find someone to check it out!"

The person who was obviously the leader of the other party took the sheepskin handed over by Liu Dazhu, opened it and looked at it, and then asked a middle-aged man beside him to look at it. After the other party nodded, he said: "Yes, but if you dare to lie to us... don't talk about your son, your family will not be able to live a good life!"

"Hmph, although I, Liu Dazhu, can still keep my trustworthy, unlike you villains!"

The man smiled slightly, not caring about Liu Dazhu's sarcasm, but whispered a few words to the person beside him, and the other party quickly left.

After a while, he left the man and came back, and there were two other people, with Liu Dazhu's son.

"Dog!"

"father!"

When the father and son met, they immediately wanted to go to each other, but were stopped by those people.

"Okay, your son has seen it too, give us the things!"

Liu Dazhu was calm and remembered Li Chengqian's explanation to him before leaving, and said, "It's not OK, I don't believe you! Who knows if you will silence us father and son after I give you the things!"

"I can kill you two now!" The man put the knife on Liu Dazhu's shoulder with a fierce look on his face.

Liu Dazhu also shivered all over, but soon remembered Li Chengqian's words, as long as he didn't hand over the skills to the other party, they wouldn't do anything to him!

To cheer myself up, Liu Dazhu stammered his neck and said, "Yes, the rest of the craftsmanship is in my mind. You can take my head directly!"

The leader was obviously a little impatient and frowned and asked, "What do you want?"

"Go outside the Chang'an city gate and you can see the guards of the city. I will give you some things when you go there!"

"Are you kidding me?"

"Hmph, I just don't believe you villains!"

The leader gritted his teeth and said, "You'd better not play tricks, otherwise..."

He was also helpless. The superiors told him that he had to get a process from Liu Dazhu... They also investigated in advance and knew that Liu Dazhu was responsible for a very critical technology in the glass factory. Others would not know that others would not be able to give in at all, otherwise they would not be able to concede Liu Dazhu's request!

Seven or eight strong men surrounded Liu Dazhu and his son in the middle, heading towards Chang'an City, and stopped about three miles away from the city gate.

"Okay, now you can tell the rest, right?"

"Let the dog go first!"

"No, Dad, I can't leave you alone!"

"Silly kid, daddy will be fine! Be obedient, you go first!" After Liu Dazhu explained to the dog, he looked at the leader beside him.

The other party looked at him deeply, then waved his hand, and the person who was holding the dog let him go and let him walk towards the city gate.

"Tell me, don't challenge my patience anymore!"

"Remember, what I know about the glass craftsmanship..." Liu Dazhu saw his son walking to the city gate before telling the other party about the detailed process of the glass craftsmanship he knew. The middle-aged man looked at the sheepskin that Liu Dazhu gave him before, and then listened carefully.

"...Okay, all that is, I have told you all that I know. Can you leave?"

The leader looked at the middle-aged man, nodded when he saw him, and signaled his subordinates to make way. "It is best not to let others know about some things, otherwise it will not be of any benefit to you!"

Just as Liu Dazhu turned and left, the leader warned in a deep voice, Liu Dazhu paused slightly, and then left quickly!

These people are quite trustworthy and it is not difficult for Liu Dazhu and his son to do so. However, the safe return of Liu Dazhu and his son does not mean that the matter is over.

In fact, during the transaction with the other party, someone was always watching them. Of course, it was not Li Chengqian, but Dugu Yun's subordinates.

According to Li Chengqian's arrangement, if the other party does not trust and attacks Liu Dazhu and his son, then the people arranged by Dugu Yun will appear and save them. If Liu Dazhu and his son leave safely, don't rush to do it. Follow these people to see who they sent!

Li Chengqian has a good idea of ​​fishing big fish with a long line, but unfortunately he is not a vegetarian. Even though Dugu Yun's subordinates are good at tracking and lurking, they are lost in the end!

After Liu Dazhu and his son left, they followed a caravan that happened to enter the city and entered Chang'an City. However, after Dugu Yun's subordinates followed him into Chang'an City, they disappeared!

Coincidentally, several other craftsmen who were threatened by their relatives also returned safely, but no one of Dugu Yun's men could be traced.

"Your Highness, my subordinates are negligent..."

"Okay, there are no outsiders, why are you pretending!"

Facing Dugu Yun's seemingly admitting his mistake, Li Chengqian exposed the other party without hesitation!

"Hehe, brother, how could you know that our people can't chase them?"

Dugu Yun, based on his seniority, is really Li Chengqian's younger brother... Of course, it is not his own brother. His grandfather, the first person to be responsible for the secret spies under His Majesty Li Er, was a nephew of His Majesty Li Er's grandmother Dugu. In other words, he is still His Majesty Li Er's uncle.

Dugu Yun is a cousin of Li Chengqian's generation, which is also a very important reason why His Majesty Li Er can safely hand over his intelligence agency to the other party for management... Although it is far apart, because of the same age, the two of them will be stinking when they first meet, and they can play together!

"What's hard to guess? Since the other party dares to openly tie people up and threaten craftsmen, he is not afraid of these people looking for me. Then I send someone to capture them. That means that these people are either not afraid of being caught by us at all, or they are confident that they can escape our arrest!"

"Would you like to issue a sea captive document?"
Chapter completed!