Spring is in high spirits, and winter is getting farther away.

After the autumn harvest last year, Fang Nan was mainly busy with two things, one was to sell "treasures" in the mountains, and the other was to write books.

Last year, Fang Nan went out of the mountain three times and sold three "treasures" in exchange for a large number of pen, ink, paper and inkstones, and the silver in the space was close to 20,000 taels.

20,000 taels of silver occupies a small space, 16 taels and 1 catty, and one catty in the Ming Dynasty is about 600 grams, which is only three-quarters of a cubic meter.

Three times out, the first two times the situation was similar, the two landlords were interested in getting rich, and wanted to take away the "treasure" directly, Fang Nan forced to continue the transaction by force, at most he injured a few people, and no one died.

The landlord's house found for the third time, Fang Nan felt that it was also the kind of oppression of the people, but in the end, the transaction was carried out smoothly, but Fang Nan was disappointed, the treasure was not sold at a premium, and it was expected that the landlord would be able to earn a few hundred taels of silver by selling the treasure to others.

It can only be said that the landlord was cautious and let him escape, and if he saw the wealth, he would be like the previous two landlords, and most of the silver stored in the house was emptied by Fang Nan.

The silver taels brought back from the three trips are not counted, but the pen, ink, paper, and inkstone are enough for Fang Nan and the students to use for a long time, and there will be no shortage of paper for the time being, and everyone can have a book for the students to learn new knowledge.

In addition to the time wasted when he went out, the rest of the time Fang Nan was basically compiling books for students to learn new knowledge, "Thirty-six Strategies", "Elementary Mathematics", "Elementary Physics", "Elementary Chemistry", "Elementary Biology" and so on.

Basically, each student first takes two books and reads and studies by himself, and students who like physics need to learn mathematics in addition to physics, and there are also two books for military studies.

It was busy until the end of the eighth year of Wanli, Fang Nan prepared a new itinerary, this time Fang Nan was not ready to go to the outside world, but went to Hutou Village, and took the silver to let Hutou Village build firearms.

There were a lot of people who wanted to go, hunters Lin Er and Li Yang led the way, plus Fang Nan, Hu Xiaoya, Hu Zhuang, Zhou Yi, Wang Shengrong, Wang Mu, Xu Yue'er and other eleven people.

Lin Er and Li Yang sent Fang Nan and his party to Hutou Village to come back, while Fang Nan and his party had to stay in Hutou Village for a while, so many people had to live in Hutou Village, and housing and food were important issues.

The key is the food problem, eleven people consume more food, it is impossible to let Hutou Village be responsible for supply, Fang Nan and his party must bring their own food.

Looking for a good weather, Fang Nan and his party took spears, firewood knives, food, water and other things and embarked on the road to Hutou Village, except for Fang Nan and the two hunters, no one else in the team had ever been far away from Qingshan Village, even if they were carrying a lot of things, they were talking and laughing along the way.

One of the two hunters led the way in front, and the other was behind, Fang Nan said a few words to Hu Zhuang, Zhou Yi, and Wang Shengrong, and several people gathered around Lin Er and asked Lin Er for advice on what needs to be paid attention to in the mountains and forests.

The battles between the two armies cannot be all city attack and defense battles, plain field battles, and battles may also take place in the mountains and forests, and if you want to become a qualified general, you must know more about all aspects.

For Teacher Fang Nan's words, several students were obedient, honestly following Lin Er's side to learn the knowledge in the mountains and forests, and others who dared to be interested in the mountains and forests could also go over to listen, anyway, Fang Nan was not interested, and Hu Xiaoya chatted about the scenery in the mountains and forests one after the other.

However, after walking for a long time, because of the weight on his body, it was easy to get tired while talking on the mountain road, and everyone else quickly shut up and walked honestly, basically only Fang Nan was left talking, Fang Nan also had a weight on his body, and he was not received by Fang Nan in the carry-on space.

The weight on the group can be packed into Fang Nan's carry-on space, Fang Nan didn't do this, it's not that he is worried about the exposure of the carry-on space, Fang Nan has already told Hu Xiaoya about the carry-on space, and Fang Nan hasn't told the others, but they also noticed that Fang Nan took out a pen, ink, paper and inkstone out of nothing, and they all had some guesses in their hearts.

Now the weight is all on the body, mainly to exercise the body, exercise endurance, do big things, a good body is a must.

Fang Nan and his party walked for nearly two days, and finally came to Hutou Village, when the sentry of Hutou Village told the owner of the village about the arrival of Fang Nan and his party, Wang Da Hammer personally stepped forward to greet Fang Nan and his party.

Although most of Fang Nan and his party are juniors in the eyes of Wang Dazhui, but in the outside world, Fang Nan and his party can be called scholars except for Lin Er and Li Yang, Wang Dazhui himself does not know a single big character, but he has more respect for readers.

Fang Nan students Fang Wenchang and Zheng Ju came to teach the children of Hutou Village to read and write, Wang Dazhui often asked for warmth to see what the two lacked, and the hunters in Hutou Village hit the prey, and they also gave priority to sending a piece of meat, it can be said that Fang Wenchang and Zheng Ju's life is a little better than that in Qingshan Village.

The situation of Fang Wenchang and Zheng Ju also happened to those who went to teach in other villages, and even in the deep mountains, the mountain people knew to respect scholars.

"Welcome the master of Fangzhai and the high-ranking disciples of the owner of Fangzhai to come to Hutou Village as guests, please inside, tea has been prepared." Wang Dazhui stepped forward to welcome.

Fang Nan replied: "You're polite, then the students and I will trouble the master of Wang Zhai for a while." ”

Wang Dazhui took Fang Nan and his party into Hutou Village, Lin Er and Li Yang did not leave in a hurry, and would rest in Hutou Village for a while before going back.

After walking on the road for nearly two days, the group sat down to drink tea and take a rest, Fang Nan was not very tired, and sat on the side with Wang Dazhui to discuss what Fang Nan wanted to do in Hutou Village.

"Lord Wangzhai, I came to Hutou Village this time to make Hutou Village create an iron tool."

"What iron?"

The next moment, a drawing of a musket was taken out of his personal space by Fang Nan and put in front of Wang Dazhui, but Wang Dazhui was stunned because of this scene.

"Master Fangzhai this... Where did this come from? Wang Dazhui said in surprise.

Fang Nan said with a smile: "It's just a little trick, it's just a little trick, the lord of Wang Zhai will first look at the drawings drawn on this paper." ”

Listening to Fang Nan's words, Wang Dazhui shifted his gaze to the drawings, looked at the drawings a few times, and Wang Dazhui said in surprise: "This paper is painted with a fire gun?" ”

"Hey, the lord of the Wang Zhai knows the fire gun?"

This time, Fang Nan was puzzled, firearms were weapons of the Ming Dynasty army, but not ordinary people could recognize them, at least before Fang Nan taught students, he took out the firearms drawings, and no one in Qingshan Village could recognize them, how could the owner of this Hutou Village recognize firearms.