"Everyone's okay."

Grandpa Gu stepped forward and looked at them one by one before he was relieved.

"Don't worry, I knocked them all out, and I met the Du family caravan, my father and the head of his family still know each other, but this time it's his son who came."

"Oh, it's the Du family who is so rich that it's like that."

"Grandpa, you see we got a lot of things this time, and food has been given to nearby residents."

"Is there a leak?"

"No, we all threw our faces over and into people's homes."

Li Yu proudly showed off with his grandfather.

Old Man Li nodded appreciatively, "Well done, in the troubled times, we can help if we can, and we are worthy of the people's support." ”

"Yes."

"Let's hit the road."

"Grandpa, we're going to go to the biggest town and get these things out as soon as possible."

Li Rui came to his grandfather to discuss.

"Then go to Shanhe City, didn't you meet the Du family, just give it to him."

"Will he notice that the Du family kid is very shrewd and may have seen something."

Li Yu added.

"The businessman is not shrewd how to do business, didn't you save him, just let him return the favor, he is easy and convenient for you."

"Cheng, by the way, I will do some more small business."

Li Yu sat beside his grandfather and winked at him.

"You want to sell him the trap map?"

"Grandpa, I think so, the Du family is rich and needs a backer, his father is dead, the previous connections may not be used now, we need a lot of money to revive the lintel, father, grandfather, I think this is an opportunity."

"People may not need your Li family."

"Then add me to the Gu family, what Yu'er said makes sense, we need a lot of money to train soldiers and horses, how can we be powerful without soldiers and horses, and how can we negotiate conditions with the gate valve."

Grandpa Gu was very supportive of Li Yu's idea, and the opportunity was won by himself.

Old Man Li pondered for a moment, "In this case, you do it, if it doesn't work, it doesn't matter, there are other ways, don't give him important things." ”

"Don't worry, I've got it. I'll sell him the trap map first, and I'll make a friend and explore my strength. ”

Li Yu smiled confidently.

"You're not afraid that he will take things away and do it himself, and dump you."

Gu Lei deliberately tested her.

"Don't look down on people, he can make things with a picture, and I've learned it in vain all these years. If he really has such a capable person, even if I plant it, I have nothing to say. ”

"With such a capable person, he doesn't need you, let alone talk to you."

"The mechanism is not an ordinary thing, at the beginning, he Lao Tzu found her a descendant of the Mo family for her hobby, and it was also a waste of strength to let him teach the ability to press the bottom of the box to a few children, only Yu'er learned all the housekeeping skills."

Mr. Li just said the reason.

"I don't believe that his Du family can have such a talent, then I still need my father to save him, and I almost let the bandits give him a nest."

Li Rui also shook his head.

The Mo family is very difficult to learn, they are looking for the last descendant of the Mo family, it is to save his little grandson, who is willing to teach the ability to press the bottom of the box, and his little grandson does not plan to let the child learn, in order to save his life.

Li Yu's previous life and present life add up, but he has studied solidly for many years before he has such ability.

"So that's the case, then there is some talk, what are you going to give?"

"How about a carriage and a crossbow?"

"Yes, the drawings and the manufacturing money should be separated, the drawings are the money of the drawings, and the work to build the car is another price, not the same thing."

Gu Lei immediately added.

Li Yu's eyes lit up, patted him on the shoulder, and smiled like a flower, "Okay, it has to be your dog-headed military advisor who thinks about it thoroughly, and you share half of the money you make." ”

"You're my aunt and grandmother, and you have so much strength. Give me the word dog head, how ugly it sounds. ”

Gu Lei rubbed his shoulders with cracked teeth and glared at her.

"When the time comes, you two will negotiate the price, and I will just send the drawings and work."

Li Yu raised his chin towards his brother, and as a matter of course, he was the shopkeeper.

"Okay, we listen to you, who made you the eldest girl in our family."

Li Rui shook his head helplessly, his eyes were full of spoiling, and he worked hard for his sister.

"I'm looking for a baby, such a rich young master, I have to hang him."

Li Yu pulled out his box, there was no jewelry in it, it was all folded drawings.

Gu Lei and the others also stretched out their heads curiously.

"This painting is quite detailed, can't you really find someone to do it yourself?"

"If you can't do it, don't look at the size, but in fact, you can't do it with a carpenter."

Grandpa Gu pointed to a few positions and said, "The size here, the direction of the mortise and tenon joint, the folding position, do you know what to do?" ”

"Oh, it's really hilarious for the uninitiated."

Gu Lei suddenly understood that the important thing requires size, and more importantly, experience, which cannot be written.

"What is this, I look like a car."

"Ballista, a large ballista, can hold a lot of arrows, and the fine iron is made with a long range, which can pierce the shield."

Li Yu explained.

"That's great, you made it?"

"Of course, I sent it away early, these are all drawings of successful experiments, and they were all sent away in advance with the clansmen."

Li Yu naturally had to arrange in advance when he came back from rebirth, these were all under the operation of his grandfather and father, and he began to build ballista heavy weapons a few years in advance, and after the test was successful, he was directly transferred out of the capital.

"The mountain you bought near Wang's house earlier is for these things."

"Yes, I have been doing experiments in Zhuangzi in Tongzhou, and after success, I sent it away directly, these can be disassembled."

Old Man Li said with a smile.

"It can be disassembled."

Gu Lei was quite surprised.

"It can be disassembled if it can be installed, otherwise how can it be transported away so big, and it will be troublesome for people to find out."

Since the first emperor took back the military power of the Gu and Li families in his later years, the Li family began to make various preparations, including the manufacture of these heavy weapons.

Li Yu can be so proficient in organ manufacturing, which is also an unexpected joy for Mr. Li, which gives him a little more confidence to protect the clan.

With Li Yu's rebirth and advance arrangement, the Li family's losses were relatively small.

"Yu'er, the ballista can't be given to the Du family."

"How could I give him this, just give him a small toy to protect himself, I have other things besides the ballista, but this thing burns money."

Li Yu smashed his mouth.

"It's okay, you can fix it, I'll figure out the money."

When Gu Lei saw these drawings, he was hopeful that he might really have a chance to return to the capital and avenge his father and relatives.

Grandpa Gu was also very relieved to see the fighting spirit in his grandson's eyes, he didn't want his grandson to fall into pain because of the death of his sons.

"Lei'er, Brother Rui, you two are responsible for hanging the Du family, what the Du family has is money, what they lack is the protection of connections, Du Tianlin is dead, the current Du family is probably not stable, otherwise he will not come to escort the goods in person."

"Such a dangerous thing is generally not done by the head of the family, the head of the family is dead, the dragon is leaderless, and the whole family is going to be in crisis, it is not a wise choice."

Grandpa Gu pinched the teacup and analyzed.

"I went to Shanhe City, let's take a look at the situation from the side."

"Give him this crossbow as a gift, it's an addition."

Li Yu untied his arm crossbow.

"How can you give your stuff to other stinky men, use mine."

Gu Lei refused without hesitation, how could Yu'er's things be used by other men.