Although Shu Tong didn't say it explicitly, Bailiyan already knew it. Shu Tong saw that the national strength of the Song State was not strong, and it was impossible to import weapons and equipment from the Xian State to arm the Song army for a long time, so he wanted to obtain a source of technology in a cheaper way, and then imitated the equipment himself to reduce financial expenses.

Traditionally, the powerful and powerful have the absolute right to intervene in the country's major policies, and Shu Tong attaches great importance to this and tries to lobby Bailiyan to sell national defense technology.

Thinking of this, Bai Liyan continued:

"General Shu, it's not that there is no way, but what can Xianguo get?"

"As long as Yan Gongzi speaks, whether it is war horses, cattle and sheep, cotton, Dadu, hemp silk, or jerky, the price can be discussed."

"In this case, the Song State needs to send 10,000 skilled craftsmen to our Xianguo, of which 3,000 are specialized in making repeating crossbows, and the other 7,000 are subject to the arrangement of the Xianguo. Seventy percent of the continuous fire crossbows produced belonged to the Song State, and the Song State only needed to pay for the corresponding materials and accommodation expenses with war horses, ploughing cattle, cotton, soybeans and other things. ”

"Yes. Can steel weapons also be exchanged in this way? ”

"Nope." Bai Liyan categorically vetoed: "But the labor produced by the remaining 7,000 craftsmen can be converted into weapons to compensate for the exchange of Song products." In this way, bartering does not require gold, silver and copper money to trade, which is beneficial to the Song State and the Xian State. ”

"Well, that's it, hehaha......"

Shu Tong was the Grand Sima of the Song State, and the functions of the Great Sima of the vassal states were roughly the same, and the functions were completely weakened to the logistics military position, in charge of the Ordnance Department and the National Ordnance Superintendent, and the transfer and retention of craftsmen were directly controlled by the Great Sima. For the ruling class, which values power and status more nowadays, the number of artisans does not mean much to them.

Shu Tong mobilized 10,000 craftsmen to go to Xianguo to sell coolies, neither need financial expenditure, nor need to take cash gold and silver, can use horses, cattle and sheep, cotton at market prices, buy friendly equipment from Xianguo, and can also learn the manufacturing process of even archer crossbows, not only did there be no loss, but the Song State could also make money, it seems that Xianguo did not take advantage, in fact, it is far from the case.

The core technology of the even shooter crossbow is steel reed and size processing, the former requires steelmaking, the latter needs woodworking processing equipment, and technical management processes, even if you get the drawings, it will not help, the core technology is still in the hands of Xianguo.

At the same time, it can also use the surplus production capacity of the craftsmen of the Song Kingdom, reduce the production cost, and use the manpower of the Song Kingdom to free up the labor of the craftsmen of the Xianguo Kingdom to develop other technologies, and the time and development opportunities are far more important than any money and materials.

Finalized the matter with Shu Tong, and Bailiyan discussed with him about planting soybeans.

The northern land of the Song Kingdom is very suitable for growing soybeans, and most of the soybeans in the Jin Kingdom come from the Song Kingdom. To raise good horses, to raise high-quality horses, in addition to grazing and feeding forage, but also some grain and fodder.

At present, soybeans are still a lowly crop, and are not used as the main ration of people, the Song State planted soybeans mainly to feed horses, so it also became horse feed beans, because it is rich in oil and fine protein, the soybean-fed Song and Xu war horses are strong.

Bailiyan wants soybeans in order to extract oil and soybean meal to increase trade items and capital flux. Although the Xianguo could grow rapeseed, the preservation rate of rapeseed was far inferior to that of soybeans, and the soybean meal should be used for food, raising horses and livestock, while the Song State could get the sugar, rice, silk, and even steel and general merchandise they needed from the Xianguo.

The next day, he set off to return to Yesui, and Bailiyan was faintly worried about the safety of Yesui.

Lu Rui is Shu Tong's cronies and governors, Ye Sui guarded the general, his ability is not outstanding, the only advantage is loyalty, Wen Taowu and Lu Zhao are about the same level, but they have their own strengths.

It was mid-May back in Yesui, and Zheng Ping's interrogation of Jin Xuedi's scouts was still unsuccessful, and one of them was killed, which made the interrogation even more difficult. Bai Liyan simply put the living mouth into custody and waited for the investigation news from Zhaoting and Kangzhi.

On the twenty-fourth day of May, the first battle of the year began, Cao Chi was raising 400,000 troops, approaching the Nordson Pass to the south, with the Zhiguo Chaotian Array as the core formation, and choosing the opportunity to engage the barbarian army.

At the same time, there was no news from Zhaoting, on the twenty-seventh day of May, 100,000 sheep of the Song Kingdom who passed through Yesui on the way south from Zicheng should have arrived half a month ago, but they disappeared without a trace for some reason, and Lu Rui sent people to the north to look for them, but they did not return for five days, and their whereabouts are unknown.

By the first day of June, the situation became strange, and Xu Jun, who was stationed in Wuyang, sent people to buy herbs, which was caused by the plague in Wuyangcheng. Bailiyan went out of the city to draw a map at that time, and when he returned to the camp on the fifth day of the sixth month to learn the news, there was a plague in the city of Yesui, and hundreds of Xianjun soldiers fell ill, and the infection was extremely rapid, and the cause was unknown.

It's already a mess back to the station, and the plague is worse than expected:

"Doctor Song, when did this disease occur!"

"About three days ago."

"Three days ago! In just three days, hundreds of people in our army can get sick! Bai Liyan was surprised when she heard the news, and asked again: "Are they all the same symptoms?" ”

"It's all the same symptoms, the stomach is swollen like a bulge, the stool is not diarrhea, the appetite is lost, the drip is difficult to eat, how much you eat, how much you vomit, the vomit is bloody, accompanied by palpitation, nausea, weakness, and unbearable colic, and my subordinates have been studying medicine for more than 20 years, and they have never seen such a strange disease."

Don't say that Song Jin has never seen it, Bailiyan has never seen an infectious disease that does not pull after drinking laxatives. Many strange diseases in the world are not seen on the earth, and some are fundamentally unique to this planet.

"Medical Officer Song, from now on, the wounded camp will be completely isolated, all those who are sick and suspected of illness will be quarantined immediately, and all those who come into contact with infected people in Langzhong and apprentices must wear masks to wash their hands and disinfect them, and burn all infected items to strictly prevent the spread of the plague!"

"No, my subordinates will do it immediately."

With Song Jin's detailed instructions, Bailiyan rode to the Yesui Treatment Center, and along the way, it could be seen that 1/12 of the infected people were lying on the street, and the symptoms were all sallow skin, swollen belly, eyes bulging and hideous. According to Xu Junlai's description, the abdomen was like a big drum seven days before the onset of the disease, and after seven days, the pain was unbearable, and the seven orifices and anal urethra began to bleed, and within two to four days, it quickly caused death, and the death was extremely miserable.

When he came to the office, Lu Rui was not there, he had already gone to the Song army camp, and in just three days, more than 2,000 people fell ill in the Song army.

"My lord, General Lu is not here, shall we still go to the Song army camp?" Jiang Jie asked.

"No, let's go back to the camp first."

In the next two days, more than 300 people fell ill in the Xian army, and the situation in the Song army was even worse, with the number of sick people rising sharply to more than 7,600, and the number of sick people in Yesui reached more than 30,000. Bad news came from Wuyang and Zhaoting one after another. By the fourth day, the plague had spread to Duhui, who had fallen ill with more than 8,000 people, and the next day it had swelled to 20,000.

On the eighth day of the plague infection, the abdominal distension and inconvenience began to bleed, and the anus and urethra bleeding immediately occurred that night, and the first death case appeared on the ninth day.

The autopsy found that the gastrointestinal tract of the infected person had already been necrotic and erosive, and the abdominal cavity was full of blood and gas.

Walking out of the isolation tent, Bailiyan took off her mask and threw it into the brazier, and the sour water in her stomach still caused nausea from time to time.

"Doctor Song, the body is pulled out of the city and burned immediately."

"No!"

"In addition, there is no way to treat the disease at the moment, it is beyond the treatment of herbal medicine, and all the people in the camp who suffer from this disease should stop taking medication, use more analgesic decoction, and send them on their last journey."

"This ......" Doctor Song's face was ugly, as a doctor, stopping the rescue was undoubtedly against his conscience.

Bai Liyan saw the clue and said helplessly:

"It's not that it's going to be ruthless, some diseases are beyond the power of the moment, and if we don't take strict precautions, more innocent people will die because of this. Sometimes you have to make a choice between the few and the many, and carry out the order! ”

"Subordinate, obey!"

Bai Liyan worries that the plague is an airborne virus, and that relying solely on herbal formulas will no longer help in the absence of a better way to retrieve the structure of the virus. Even if modern medicine encounters a public health emergency, it is impossible to save the infected people in the first place.

Walking out of the wounded camp, Jiang Jie, Lu Gao, Xu Fei, Su Hong and others were waiting outside the camp with masks, looking more and more depressed.

"General, what kind of disease is it?" Lu Gao hurriedly asked.

Bai Liyan looked indifferent, and said in a deep voice:

"Never seen before."

Su Hong scolded at this time:

"It's really hateful, I killed so many brothers of Lao Tzu, what a wretch!"

"Su Hong, don't say a word, the general is more anxious than you!"

Sikong Nan persuaded, and Xu Wei, who usually doesn't talk much, touched his thick beard and said puzzledly:

"Uncle, is there something wrong with this disease?"

"What do you mean?" Bai Liyan asked.

"You see, this disease is not like malaria, nor is it like cholera, it is not a complete disease, it is not a complete disease, there is no distinction between men and women, old and young, rich and poor, as if there is some way. And we all seem to be fine, uncle, you don't seem to be sick, is this disease picking something we don't know. ”

As soon as the words fell, Su Hong interjected and said:

"It's not simple, those who have been to the girls are not sick, and those who have not been to it have fallen!"

"Nonsense!"

Sikong Nan scoffed, his old face was blushing, and Su Hong disagreed:

"I'm not talking nonsense, none of the dozens of sick brothers in my camp have touched their mothers, and the others have touched it."

Sikong Nan went on to refute:

"Then why didn't Jiang Jie get sick!"

"Brother Jiang Jie, have you ever been a girl!" Su Hong asked Jiang Jie, Jiang Jie shook his head:

"Nope!"

"It's really useless!"

Su Hong chirped, and Bai Liyan, who had been silent, shouted:

"Don't make any noise, what Xu Yan said is not unreasonable, but all diseases have their way. The sudden and strange appearance of this disease, all battalions have corrected themselves since today, but anything related to this disease will be reported to me immediately! ”

"No!" The generals spoke in unison.

"Let's go back to each battalion to strengthen the vigilance and disperse!"

At this time, Bai He said:

"General, the brothers have been on fire lately, are you boiling some soup?"

"It's useless to just drink medicine, let people go to the nearby fields to harvest vegetables, and if they can't harvest them, they plant them themselves, and eat more soybeans and sprouts. There was still some green tea in the baggage camp, and each team of 100 people went back to boil water and drink it in three catties, and the symptoms were relieved after a few days. ”

"My subordinates understand!"

The local winter is long, the winter temperature is low, there are no vegetables, even if there are, it is pickled vegetables, drinking tea can greatly relieve the fire, before the southern expedition, the army carried more than 50 stone black tea green tea, 15 stone black tea, I thought that there could be a market along the way, I never expected that there was no market for tea in the south, or that tea has not yet become a consumer product accepted by the people of the time.

In addition, the collection and frying of tea is labor-intensive and expensive, and after the sixty-five stone tea leaves were transported to the south, there were still fifty-three stones that were not sold, which was equivalent to smashing into the hands of Baili Yan.