Looking at the calendar on the table, today is July 20, 1934, and the clock on the wall is pointing to 9 o'clock in the morning, He Jianye slowly unfolded the letter in his hand. The time of the first letter was sent from China in August 1933, and He Fuchu told He Jianye in his heart: Xiaoyi's health has further improved, and with the consent of the doctor, he will return to his hometown in Qingjiang in November by the VIP carriage of the train. The second letter was also sent by He Fuchu, but it was already sent in January 1934, telling He Jianye that Lin Bo had successfully acquired a medical device factory in Texas with the help of a lawyer, and began to build a laboratory and renovate the production line of the factory to transform it into a pharmaceutical factory; His mother was very worried about him and asked him to send a telegram or reply to his home when he was free. The third and fourth letters had already been read under He Jianye's careful inspection, and the embassy staff came to inform He Jianye that it was lunch time, so that he could eat with the embassy staff or go out to taste German food by himself. He Jianye, who didn't have the slightest thought, finished his working meal without knowing anything, and the embassy staff looked at He Jianye and said, "He Jianye, I understand the feeling of homesickness, just so many letters, I suggest you go back to the hotel and read them slowly, because you can't finish reading it before we get off work, if you have anything urgent to send a telegram to China, you can come to the embassy again." ”

He Jianye thought about it, indeed, no one bothered him when he went back to the hotel room, he could look at it however he wanted, "Then trouble you, I'll go back to the hotel, if there is something to look for, I can go to the hotel to find me, if I am not there, leave a message at the front desk, I will rush back to the embassy immediately after receiving it." After He Jianye finished speaking, he returned to the hotel with the box containing the letter.

He Jianye, who was intently reading the letter in the room, had forgotten the time at all, and after feeling hungry, he asked the front desk of the hotel to help buy him some bread. The letters are basically more concentrated after the sixth, which is equivalent to the speed of two letters a week, but most of them are written by Xiaoyi, after 1 year of recuperation, Xiaoyi's body is finally better, and she can already carry out outdoor activities like normal people, except that she feels tired easily, there is no discomfort, of course, there are a lot of greetings from Xiaolian and Qingya. Until 8 o'clock in the evening, He Jianye, who finally only had a letter left, looked at the familiar handwriting of the eldest brother on the envelope. The joy blossomed in my heart, "Oops! Isn't everything perfect when you go back this time? Haha" He Jianye, who thought of this, laughed out loud in the room alone, and after half a year of torture, He Jianye, who finally got the news from home, jumped up and down in the room, and finally couldn't bear it anymore, "Forget it, leave a little concern for yourself in this last letter, and go out tonight to experience the nightlife of Hamburg." He Jianye couldn't hold back anymore when he thought of this, packed up the letters, put them in the box, and then put the box in his suitcase. I went out after washing. Came to the street, walked around, blew the cool night breeze, and found a bar! After entering, I sat at the bar and asked for a beer, and drank it slowly, by the way, I saw that there was no young German girl in the tavern. "It turns out that there are night girls all over the world! Rigorous and pragmatic Germany is no exception! He Jianye thought,

"Hey, handsome guy from the East, are you interested! I'll be yours for 10 marks tonight! A young German girl dressed unrestrainedly came over with a piece of bright makeup to talk to He Jianye,

He Jianye shook his head and continued to drink a medium beer. Knowing that the bar was closed, He Jianye slowly walked out of the bar and returned to the hotel to sleep happily.

The next day, He Jianye, who woke up naturally, got up and had breakfast, went to the embassy, and asked the embassy officials to arrange for the ship to return to China as soon as possible, and the embassy staff told him to go back to the hotel and wait for the notice.

He Jianye slowly unfolded the eldest brother's last letter in the room, and stood up immediately after reading the beginning, because he couldn't understand it at all, it was full of all kinds of bullshit, "How can you write this kind of letter according to the level of the eldest brother?" He Jianye couldn't understand, closed the letter, looked at the date on it, it was sent in February 1934, He Jianye suddenly remembered the code words agreed with his eldest brother in the study before leaving, hurriedly opened the suitcase, opened the book of mountains and seas in the box, and compared the content of the translated letter according to the agreed method, and finally understood after the translation was completed, the original letter told He Jianye that the molecular formula and structural formula he provided had been synthesized under the efforts of the laboratory, and now the preparation experiment in the factory is underway, In the letter, he provided a call sign for the station, as well as an alias for the drug, and various code word changes. If He Jianye wants to know the specific progress, he can contact Lin Bo by direct telegram. He Jianye hurriedly closed the letter, didn't dare to put it in the box, and put it directly in his arms.

Then he opened the telegram, and the first one was a coded telegram, and He Jianye, who was not familiar with it, had to turn out the book of mountains and seas and continue to compare.

On April 5, 1934, a telegram was sent saying that the drug had been tested by laboratory personnel and that the drug had a significant effect on streptococcus, diphtheria bacilli and other bacterial infections. However, at present, there is no method that can be mass-produced and synthesized, and it is still in the laboratory stage.

On May 18, 1934, he called and said: If possible, ask He Jianye to find a way to provide a way to transfer the drug from the laboratory to the factory for production.

The third and final telegram was finally normal.

On June 18, 1934, he sent a telegram saying that the embassy staff had heard that all the Chinese people who had gone to Germany for exchange and study this time, except for He Jianye, would return to China in the near future, and asked about He Jianye's return date.

After reading all the telegrams, He Jianye immediately returned to the embassy, and after registration and approval, he finally used the embassy's radio station to send a telegram to his home.

"The letter has been informed that the embassy will return to China in the near future. The exact date will be announced after confirmation. ”

On the afternoon of July 21, 1934, He Jianye finally got a specific date for his return from the embassy staff, and He Jianye would return to China on a German merchant ship passing by Hamburg five days later. After the telegram informed his family of his return to China, He Jianye finally made up his mind. That night, He Jianye hurriedly entered the space on his stomach to see if he could find a way to mass-produce penicillin, no way, every time he came out of it, he would forget what he had seen unless he had forced to memorize it.

After putting a Do Not Disturb sign at the door, He Jianye lay on the bed and made a small cut with a newly bought scalpel, and He Jianye entered the space on his stomach. Go straight to the clinic. I picked up the manual directly, and when I looked at it, I found a variety of usages and dosages and contraindications, and there was nothing. After looking for a long time, He Jianye, who had found nothing, left behind the irritability in his heart, and after feeling a little tired, he slowly withdrew and fell asleep in bed.

During the day on July 22, I tried to use the embassy's radio station to contact Limber in the United States, and found that the contact information was useful. Although there was no practical progress, He Jianye confirmed the security of the contact code.

On the evening of July 22, He Jianye did not rush into the space to look for it, but sat on the sofa in the room and pondered, thinking that the clinic doctors in the future should know the history of antibiotics very well as they graduated from medical schools in the Chinese system. Well, I'm going to look around the desk where the attending doctor prescribes this evening.

He Jianye, who had decided the direction and purpose, packed up, prepared things such as paper and pen, and entered the space to look for it. In a doctor's training log, the development history of green plum was briefly recorded, perhaps out of curiosity, there was a detailed record of the fermentation and extraction and refining process of the initial natural penicillin, but He Jianye, who did not understand the medical terminology at all, was sad, he didn't understand what spore culture was, and he didn't understand what the medium containing phenylacetic acid prerequisite. "Damn, it's better to leave professional matters to professionals! What if a biologist saw this log and didn't solve everything? I'm still forcing a jit down and then seeing how much I can think of? At least giving those in the lab a direction can also save a lot of time. In addition to constantly going in and out, except for rest and meal time after exhaustion, He Jianye, who was in a state of madness, finally sent all the theories to the United States through intermittent telegraph transmission on July 25. However, at this time, He Jianye did not dare to send a report in the embassy, anyway, there was no shortage of money to spend, He Jianye was looking for different commercial radio stations to send reports every day, fortunately, there were more commercial radio stations in Hamburg. After the report was completed, He Jianye told Lin Bo not to hand over all the things to the laboratory at one time, little by little, and never take out the later things when there were no achievements in the previous stage. On the morning of July 26, 1934, when the ship was about to depart, He Jianye used the embassy's computer to send a message to his family and Lin Bo respectively: "We have left for Qingjiang." Then the embassy staff sent him off and embarked on the merchant ship back home.

Unlike when he came, there were fellow officers and classmates chatting, this time He Jianye set foot on the ocean-going merchant ship back to China alone, in addition to eating, He Jianye, who felt very tired in the past few days, practiced boxing at night and rested during the day, and hardly left the hatch under the habit of going all the way east.

On February 12, 1935, after more than half a year of sailing, the merchant ship successfully docked at the wharf of Shanghai Port.

At the port of Shanghai, He Jianye took a deep breath of the afternoon air, although it was not so fresh, but he was still intoxicated by the smell of his hometown. Squinted and stood for a few minutes, then walked unhurriedly towards the exit of the dock.