Su Xuezhi came to the National Middle School where Dr. Yu taught with a net bag of fruit.

The middle school is located in the old city, and it seems that the barracks of the military camp stationed in the city were reformed in the early years. Most of the students who attended the school came from ordinary families. The school had already had a holiday last week, and the two rusty doors were closed tightly. Looking through the fence, there were several rows of black classrooms, a piece of white snow, empty, and it seemed that there was no one else.

But Su Xuezhi heard his cousin mention that Dr. Yu's relatives died many years ago due to a plague, so he did not return on holiday. Now he still lives in the school dormitory. So he knocked on the iron fence. After a long time, he saw a doorman wearing a dog-feather hat walking out slowly with his hands in each other's sleeves. He shrank his neck and asked in anger what was going on. When he heard that he was visiting Dr. Yu, he curled his lips and opened the iron door.

"Mr. Yu, after the holiday, I only came out once and bought some rice and flour. I couldn't even see anyone during the day and night. Usually, after teaching, I either stayed in the house or got into the broken house to fiddle with bottles and jars. It seemed that my health was not good. If I did this, I'm afraid I would die, and no one knew..."

As he said that, he took his chin and poked a row of low houses in the northwest corner of the playground: "Let's live there, the one that depends on the inside!"

Su Xuezhi thanked him. Seeing that he was staring at the things he carried in his hand, he took two oranges and handed them over to him. The guardian picked them up, and then he shrank his neck and crawled back into the house.

Su Xuezhi stepped on the creaking snow under her feet and walked through the empty playground. She came to the door of the dormitory where the janitor was guiding her. She heard a sound of intermittent coughing inside.

She knocked on the door. After a while, the door opened in a small way. A middle-aged man in glasses appeared. He was in his forties, with a clear face and a bright look, but he had a handful of beards and his hair was messy. I didn't know how many days I hadn't combed it, as if he was holding a bird's nest.

His face was also sallow, and he looked a little sick. He was wearing an old gray cotton robe that was thin in the weather. He stood behind the door and looked at her with a cautious look.

"Who are you? Who are you looking for?"

Su Xuezhi hurriedly reported his identity and said that he was the cousin of the young sheriff named Ye and Su. He came here to visit him today.

Dr. Yu seemed to know her, and then he became polite, opened the door and invited her in.

The house is narrow and old, only about ten square meters. In a corner behind the door, there is a stove and simple cooking utensils, a single bed and a simple desk opposite, and the rest of the space is almost filled with books and paper, which looks very messy and can't even find a place to stay.

These days, the price of purchasing books is not cheap. Su Xuezhi took a casual look and saw several original medical books. Imported ones like this will only be more expensive.

The room was very cold and the stove did not set fire.

Dr. Yu randomly collected a stack of books piled up on an empty chair, asked her to sit, then poured water for her, and lifted the kettle, but it was empty inside.

"Xiao Su, sit down, I will boil water now. I will be immersed in reading books in the morning and forgot to catch a fire..."

When she was at the door just now, she saw that there were not many coal balls piled in the corner of the wall, and suspected that Dr. Yu's money was probably all used to buy books.

She stood up quickly: "No, no, I'm not thirsty. Sir, you don't have to be busy anymore. You'd better sit down and talk. I just heard you were coughing. Are you feeling uncomfortable? Didn't you go to the hospital for a check-up?"

Dr. Yu said that he fell ill when he was in autumn. Something happened again in recent months. He kept running around and looking for his missing friends everywhere, but he didn't have time to treat him.

"It's okay for me, it's just that there is no whereabouts of Qinghe. Whenever I think of it, I feel extremely worried."

He looked worried and paused to calm his emotions.

"Fortunately, I met Sheriff Ye and Xiao Su this time. Of course, I also rely on Commander He to eliminate the cancer in the drug factory and avoid even worse poison. If Qinghe is alive, he will be happy now. This is exactly what he wanted at the beginning. If unfortunately, this result should be considered a comfort to him."

Su Xuezhi also said: "Mr. Wu not only always has a positive light in his heart, but also practices it in practice, which is admirable. I came here today, in addition to visiting you, I also want to ask, Mr. Wu's life and death are uncertain, are there any relatives in his family who need to be taken care of? If so, I would do my best before Mr. Wu returns."

Dr. Yu shook his head: "He and I are fellow townsmen. When the plague was plague, almost all of his family was gone, and only one mother was left. He passed away two years ago and had no wife around him."

Su Xuezhi was silent for a moment and said, "I heard that Commander He had spoken and asked the police station to find someone until there was a definite news. It is also a blessing for Dr. Wu to have a friend like you. Mr. Yu, you have done your best and be careful of your health."

Dr. Yu nodded slightly: "Thank you Xiao Su. You are very young, but I have read several reports about you in the newspaper before. It is very outstanding. When we meet today, you are indeed a spirited young man. No wonder the principal of your school values ​​you so much and works hard, and you will surely achieve great things in the future."

Su Xuezhi thanked him for his encouragement and looked at a book that was spread out on his desk: "Can I read it?"

Dr. Yu handed it over.

It is an original professional book on the autotrophic and growth of chemically energetic inorganic nutrient bacteria that was published a few years ago. It should be the forefront of contemporary microbiology research.

Su Xuezhi came here today, and in addition to visiting Dr. Yu, she actually had another idea.

The plan to make industrial penicillin is entirely up to oneself, which is unrealistic.

The first step in industrial manufacturing is that in the laboratory, experts in microbiology are needed.

After learning that Dr. Yu was like this before, she immediately thought of her plan. After the pharmaceutical factory case was over, she entrusted the principal to inquire about the origin of Dr. Yu, and felt that he seemed to be the person he needed.

Dr. Yu's name is Yu Shaoli. When he was young, he was one of the students sent by the Qing court to study in Europe. With his intelligence and diligence and excellent grades, he was able to study under a famous German pathogen biologist. At the University of Berlin, he obtained a doctorate degree. He heard that the domestic Westernization Movement was booming, but he did not know that his major was useless. After wasting years, he had no choice but to accept the advice of his mentor and went abroad again. While working as a lecturer in the university, he worked in the laboratory and assisted in the development of diphtheria serum. In this way, he finally waited for the founding of the New Republic.

At that time, Dr. Yu was about to be hired as an associate professor, but driven by patriotism, he once again resolutely let go of everything he had obtained abroad and returned home happily, hoping that this time he would contribute to the New China.

At the beginning of his return, he worked in the Health Department under the Ministry of Internal Affairs, but soon he discovered that insiders and outsiders in the Health Department commanded the experts, and bureaucracy was prevalent, and there was no difference from the past. Professional officials were European and American factions and German and Japanese factions fighting each other. The next year, he took the initiative to come out of the office to assist the epidemic prevention department in developing and producing domestic diphtheria serum. However, the interests of the pharmaceutical factory were complicated and did not strictly follow the process. There was a problem with quality control, and a large number of defective products were released. He advocated that they would destroy them all, but no one obeyed. He appealed everywhere, but the appeal was still fruitless. The defective products were finally circulated and entered the market. It was not until many children died ineffective treatment that the drugs were recycled and destroyed one after another. The price was the lives of several children, but in the top, the person responsible was only symbolically transferred to a position.

He was extremely disappointed with everything he experienced and resigned in anger. However, he offended many people in the past few years of working in the Health Department and was secretly interfered. In addition, he was unable to teach at university smoothly. In addition, he was in a bad state. After several twists and turns, he was disheartened. Finally, he came here to teach middle school biology through a friend.

This teaching lasted for five or six years. It was fine. It was not a pursuit. In addition to teaching, he threw himself into his own research. Others were poor and had to rely on the help of his friends in daily life. He was at ease. It was not until a few months ago when something happened to an old friend, which made it worse and worse. His body was almost unable to hold on. He was sick for a long time. In despair, he had to meet Ye Xianqi and acted enthusiastically. The pharmaceutical factory incident did not disappoint his old friend's entrustment.

He was grateful, so he was naturally polite to Su Xuezhi and smiled and said, "Why, you have some knowledge of this?"

Su Xuezhi said: "Dr. Microorganisms can become therapeutic drugs, and you should be an expert in this regard."

Dr. Yu waved his hand: "I dare not take it. But what you said is indeed correct. For example, there is a microorganism that can inhibit the growth of Bacillus anthrax in the urine. This was discovered and proved decades ago and is called an antitoxin."

"I plan to cultivate and industrialize an unprecedented mold in the future, which is what you call antitoxin. It can kill a variety of deadly bacteria, overcome septic infections in the human body, and is not poisonous to the living body. I can cultivate mold, but I can isolated and select bacterial species, transform fermentation, refining and production, etc. If a professional joins, it will be twice the result with half the effort. You are an expert in this field, and I wonder if you are interested in doing this with me?"

Dr. Yu showed interest, but seemed a little unbelievable: "There is such a bacteria present?"

"Yes, it exists naturally. There should be something else besides the one I just mentioned to you!" Su Xuezhi affirmed in his tone, "What we need to do is discover them, separate them, and make them use for medicine."

"I have an independent laboratory in school, with very good conditions and free research. If you are interested, I am looking forward to your joining. Then we will do this together."

Dr. Yu pondered for a moment and nodded: "I have no problem, I can give it a try."

Su Xuezhi expressed his gratitude to him for his trust.

Dr. Yu glanced at Sibi and smiled bitterly: "You are polite. When I was studying, I was as confident as you today, and I didn't want to hit a wall everywhere. Now I am middle-aged and have nothing to accomplish, and I only have a disabled and useless body. I thought I was about to go to bed, but I just had a day to count, and I could still have the opportunity to apply what I have learned. Instead, I would like to thank you."

Su Xue knew that Dr. Yu must be short of money. Seeing that he was in poor health, he wanted to leave some money before leaving to help him overcome difficulties. After thinking about it, he should not accept such funding as he would at will. If he pushed it around, he would be embarrassed.

Leave it to my cousin to do something like this, and it is easier to handle it yourself.

After she came out, she was in a very good mood. Seeing that it was getting too early, she was about to set off, so she returned to her place where she lived, but found that not only did her cousin have returned, but Helanxue, who originally said that she would also go north to celebrate the New Year today, was also there.

He Lanxue told her that because her brother had something to do temporarily and could not go today, he postponed his trip north.

"I'm fine anyway, so I'll come with your cousin and take you to the train station."

Su Xuezhi suddenly realized and thanked her. Then he called Ye Xianqi aside, talked about Dr. Yu, took out twenty silver dollars, and asked him to buy some good charcoal and food, and give it to him tomorrow.

Ye Xianqi agreed and muttered: "Fortunately, I ran fast in the past, otherwise, if I became like Dr. Yu, I see what your uncle will do!"

Su Xuezhi gave him a blank look: "Someone has the knowledge first, and then worry about this!"

Ye Xianqi scratched his head: "I would rather not! My hair is important."

The brother and sister came out laughing. Su Xuezhi took a packed box, took Helanxue's car, and went to the restaurant to have dinner together. It was almost time. When he arrived at the train station, he waited for a while, and when he arrived at the train, he got on his own private room at the front of the train, opened the window, leaned out, waved goodbye, and urged them to go back soon.

The train stayed at the station for twenty minutes, set off again, and went north along the railway with a bang. A long black shadow went further and further away, and finally disappeared into the night.

Ye Xianqi sent off his cousin and flattered He Lanxue: "My cousin is amazing! I, Ye Xianqi, had the honor of meeting such a cousin for three years. I was impressed and I didn't have to do the next life. In this life, I will be a cousin and repay my cousin's good luck!"

Helanxue couldn't help laughing again, and after laughing, he said, "If my brother hears it, be careful that he will say you are slick!"

Ye Xianqi was shocked and asked hurriedly. Only then did he realize that He Lanxue had told He Hanzhu about what he said to coax her last time, and she suddenly broke out in a cold sweat.

"Grandma, can I call you aunt? Don't say anything in front of your brother anymore. You want my life!"

Helanxue snorted: "So are you lying to me with a slick mouth?"

"Absolutely, I swear to God! My filial piety to my aunt, God can tell you, and there is a lie, "The sky hits lightning and makes me turn into a turtle in my next life, and I will only be a camel. Will this be possible?"

Helanxue knew that he was talking nonsense, but she didn't really hate it. Instead, she brought a new experience. No one had ever been with her like this. She felt happy and nodded, saying, "Let's go, my brother asked me to send Young Master Su to the headquarters to find him and go home with him. You can go too."

This time my cousin was going to the capital for a meeting. Ye Xianqi wanted to buy a ticket for her, but there were only two tickets in one train. Now it was the end of the year. He knew that he would definitely not be able to buy it by himself. He entrusted the sheriff's help a few days ago, but it was still not good. He was told that only the train during the day could get one, and at night, there would be only tickets for the collective sleeper.

My cousin had something to do during the day and couldn't leave, so she ordered him to buy the evening shift.

Although she had only one night, her cousin was a woman. Ye Xianqi was a little unhappy when she asked her to lie on the train with someone who didn't know where to come from. Thinking of Helanxue, she went to see her last night and asked if there was a way to try to help her. This hit Helanxue's thoughts. She immediately looked for her brother and formally invited Mr. Su to the private room. After hearing this, her brother told her that he happened to have something to do temporarily and wanted to postpone his departure. She asked her to give the ticket to Ye Xianqi, and then told Ye Xianqi not to tell Su Xuezhi that the ticket came from her.

Ye Xianqi said that he would give the money, of course He Lanxue would not want it, so he would forget it. He didn't expect that he was so lucky that he didn't have to spend a penny, so he got a box ticket. Early this morning, he came to offer the treasure.

Although he didn't understand why He Hanzhu told such an order, he said that he did not dare to disobey him. He was afraid that his cousin would ask about the origin of the ticket again, so he hurriedly ran away after giving the ticket.

Now that I have sent my cousin away, when I heard He Lanxue asking me to go to the headquarters, when I think of He Hanzhu, I feel numb and feel sad. I accompany me to the outside of the headquarters without saying a word. Suddenly, I say that there is something else in my police shed, and I won't go in, so I pushed open the car door, went down and ran away.

Helanxue looked at the oil on his feet and left him, pouted unhappily, and walked in from the door that the guards opened for him.

It was already late, it was almost ten o'clock, and everyone in the headquarters had already got off work. He Hanzhu asked his secretary and Ding Chunshan to go back early. At night, he was alone in the office.

Under the light, he lowered his head and sat alone behind the table, flipping through some official documents, when the phone suddenly rang.

He picked it up.

The caller was Ms. Cao.

"Yanqiao, I just heard Zhang Yijiu say, call him and tell him not to go to the station to pick you up tomorrow morning? What's wrong?" Her voice was a little concerned.

He Hanzhu continued to scan the documents in his hand with his eyes: "There is something happening temporarily, so he changed the date and left tomorrow."

Miss Cao seemed to breathe a little relieved: "I thought something had happened to you, and I was a little worried. I just called the mansion and said you were not here, so I called here to check it out. It would be fine if it's okay, then you go back early to rest and don't be too tired."

He Hanzhu muttered and was about to hang up the phone, and suddenly asked, "Twelve, it's snowing in the capital, right?"

Although he was passing through the phone, Miss Cao also felt his tone change. He sounded very gentle, unprecedented. He still called himself like that. His heart couldn't help but jumped slightly, paused, and held his breath: "Yes, it's gone, what's wrong?"

On this side, He Hanzhu's eyes turned gloomy and said lightly: "It's nothing, I just suddenly remembered and asked casually. By the way, I told you that your driver had broken his leg, probably because of the snowslide here, and he fell two days ago. After all, it was yours. If I asked me to meet him, I couldn't ignore it. I just asked someone to send him back to your side. You should be able to see him soon."

He looked at his sister who was walking in with the door and continued, "Don't forget to comfort him. After all, he is doing your business."

After he finished speaking, he hung up the phone and smiled at his sister.

"Come back?"

He Lanxue nodded: "Young Master Su also left by train."

She walked to her brother.

"Brother, I just don't understand. Why don't Ye Xianqi tell Young Master Su that the ticket is yours?"

In He Hanzhu's mind, those eyes that were throwing towards him appeared. Even though the night was heavy, it could not hide the look of disgust.

He smiled, twisted the cap of the fountain pen, stood up, picked up his coat that he hung on the back of the chair, and put it on.

"Let's go, go back."

He took his sister to the door and was about to turn off the lights when suddenly the phone on the table jumped up.

He asked his sister to go down first, wait for him in the car, and came back and answered the phone.

The caller was Ding Chunshan, and his voice sounded extremely nervous: "Commander, it's not good! Chen Ying just sent a newly obtained news. It is said that it is very likely that someone bought a killer and intended to assassinate you on the train tonight! You temporarily changed your itinerary, but the other party probably didn't know it yet. If the news is true, I'm afraid that Young Master Su will be in danger..."
Chapter completed!