After Chen Kai thought about it for a few days and finally finalized the details of the new sled, he and Xiao Tian discussed it and agreed on the same story: that Xiao Tian had come up with the design.

Since no one in the family was literate, and there was no paper, Chen Kai found an open space, drew a diagram on the ground, and explained the details to Xiao Tian. He then asked Xiao Tian to bring Chen's father to see the diagram, saying that it was a tool he had seen in a book that could be used to plow the land. If Chen's father pressed for details, he was told not to remember which book it was.

If Old Man Chen asks how he learned to read the words in the book, he should say that when he was in town, he was taught by those who didn't study properly at the academy, and then he copied books for them in exchange.

When Old Man Chen saw the picture of the new sled, he asked about the details, and Xiao Tian answered him one by one. Then Old Man Chen asked in confusion, "Xiao Tian, ​​how did you learn to read? And where did you learn about this new sled?"

Xiao Tian calmly answered according to the story the two had agreed upon, saying, "Only two parts need to be made of iron; the rest can be made of wood by Uncle. Even if the new sled doesn't work well, the scrap iron can be recast into something else."

Old Man Chen didn't doubt what Xiao Tian said, and promised with heartache, "When our family has money in the future, we'll send you and your uncle to study at the town's academy." Then he destroyed the map on the ground.

Based on his years of farming experience, Old Man Chen thought the new sled was feasible, and he didn't want to dampen Xiao Tian and Chen Kai's enthusiasm, so he agreed.

During dinner that evening, Old Man Chen mentioned this to his family and explained that he and his wife would use their savings to commission iron parts. No one in the family objected, so Old Man Chen asked his fourth son to go to town to buy some paper and have Xiao Tian redraw the new sled on the paper.

Then explain the specific parts to Chen Lao Er and tell him to hurry up and make them. As for the iron parts, have Lao Si take the blueprints and money to the blacksmith shop in town to order ten.

Since they didn't have any iron on hand and needed it urgently, the customization fee plus the iron needed cost three taels of silver. Chen Laosi paid 500 coins first, and would pay the rest when he picked up the finished product in ten days.

Ten days passed quickly, and Chen Lao Er had finished making the wooden parts needed for the new sled. Early in the morning, Chen Lao Si went to town to pick up the custom-made parts.

After Chen Lao Si brought back the parts for the custom-made new sled, Chen Kai and Xiao Tian began to instruct Chen Lao Er to assemble the new sled. Once the new sled was assembled, the Chen family couldn't wait to try it out and see if it worked well.

So the eldest and second eldest Chen brothers carried the new sled out the door, and the rest of the Chen family followed behind, eager to see it. When the villagers saw the strange-looking thing the people in front of them were carrying, they all asked, "Old Chen, what are they carrying?"

Old Man Chen excitedly replied, "This is the new sled that my son Xiaotian saw in a book. Let's go to the field and see if it works well."

When the villagers heard what Old Man Chen said, they were all curious about whether the new sled would work well, so they all followed behind the Chen family. When other villagers saw so many people gathered together, they curiously gathered around and asked what had happened.

So the word spread quickly, and by the time the Chen family reached their field, almost everyone in the village had followed, including the village chief, who wanted to see the new sled.

Old Chen planted the new sled in the field and strung the rope in front of it, intending to pull the sled. However, Old Chen wanted to pull the sled himself and test how well the new sled worked, so Old Chen stood beside him and held the sled.

After Old Man Chen pulled the plow a certain distance, several elderly people in the village squatted down, tested the depth of the plow with their hands, and exclaimed in surprise, "This new plow plows much deeper than the old ones!"

Seeing this, the other villagers wanted to try plowing it themselves. Before long, they had almost finished plowing the entire acre. Even though the old man was slow, he could still plow as deep as Old Man Chen.

Watching everyone enthusiastically scrambling to plow the land, Old Man Chen thought with satisfaction that this new sled was much better than he had imagined.

Old Man Chen said to the people who were scrambling to plow the land, "Isn't this new sled easy to use? It's also very labor-saving. Not only that, watch me demonstrate, it can even turn!"

After Old Man Chen finished speaking, he turned the sled around and turned it around without needing two people to help him.

The villagers stared in disbelief; it was the first time they had ever seen a sled that could turn by one person. It was incredibly useful!

Everyone rushed to plow the land for a while, and then they all sat on the ground and cried. Old Man Chen and the other villagers also wiped away their tears.

They are truly happy today. With such a useful sled, plowing the land will be easier for them in the future, and they will be able to cultivate more land and harvest more grain.

Chen Kai and Xiao Tian felt sad seeing the adults around them crying, but they could understand the impact the new sled had on them.

The new sled is lighter and easier to use, and it can plow the ground very deeply, which helps with intensive farming and improves farming efficiency.

After everyone had finished crying, the village chief said happily, "With this new sled, we won't have to work so hard plowing the fields anymore. Our descendants are truly blessed!"

The village chief then asked, "Chen Dong, how much does it cost to make this sled?"

Old Man Chen laughed and said, "This new sled is the only one of its kind in our family right now. The blueprints haven't been sold yet, so the blacksmith can't make it."

Old Man Chen changed the subject, saying, "However, I will present the blueprints for the new sled to the county magistrate tomorrow, and the blacksmith will also sell a copy. As for how they will price it, I don't know."

Old Man Chen told the villagers that the new sled was something Xiao Tian and Chen Kai had seen in a book and figured out. But the villagers didn't believe the two children could read and thought Old Man Chen was bragging.

The village chief asked, "Does your family sell new sleds? If not, can we rent them out?"

Old Man Chen thought for a moment and said, "We don't have many sleds, and we still need to deliver them to my older brother and his family! It's ten coins a day to rent one, so pay up if you want to!"

The villagers tried to haggle, but Zhou shut them down, saying, "This is the price. Take it or leave it!"

Old Man Chen turned and left. He was still thinking about assembling the rest of the sleds and delivering them to Uncle Zhou and the others as soon as possible!