A simple mourning hall was temporarily erected in the hall of the Gulangyu United Relief Association, and the portrait of Sister Zheng was hung in the middle of the mourning hall.

A memorial service is being held here. In front of the mourning hall, many foreign friends and representatives of the victims came to mourn, and they came to see off Sister Zheng for the last time with small white flowers on their chests.

Liu Zifeng also stood in the crowd of condolences, but today he was wearing a neat suit, beard, and sunglasses, completely dressed as an overseas Chinese, and it was difficult for ordinary people to recognize him.

Due to his professional habits, Liu Zifeng stood in the crowd and carefully observed left and right, and it was quite surprising that he actually saw Qingfang's figure in the group.

At the official beginning of the memorial service, the president of the United Relief Society stepped forward to deliver a eulogy, and he said in a very sad tone: "Ms. Zheng Guiping is an extremely caring person, in the work of the United Relief Society, she has served tens of thousands of refugees in Yude Girls' Middle School, Yinghua Middle School, and Huangjiadu Temporary Shelter with her hard work and thoughtful attitude, helping them to spend the most difficult days in Gulangyu. Ms. Zheng Guiping's unfortunate experience makes us full of regret and resentment towards the murderer, and we are here to implore the patrol room of the Ministry of Industry to solve the case as soon as possible and arrest the murderer to comfort the heroic soul. Finally, let us wish Ms. Zheng Guiping all the best and express our most sincere condolences to Ms. Zheng Guiping's mother. ”

Everyone collectively bowed to the statue three times.

Zheng's mother, who was standing on the side, cried sadly when she heard this.

After the memorial service, many people hurried over to comfort Zheng's mother, and then left sadly.

Liu Zifeng came to Zheng's mother's side, comforted Zheng's mother, stuffed a wad of money into her hand, and asked about the situation in a low voice.

Liu Zifeng asked sadly: Aunt Zheng, I am a friend of Gui Ping, and I am very sad to get this bad news, can you tell me about her situation?

Zheng's mother wiped her tears and said: Two days ago, Gui Ping had returned home from work, I made dinner and waited for her, and she suddenly said that there was something important to go back to the office. She went, never returned, and early the next morning, someone from the relief society came to tell me that her body had been found in the office and that she had been stabbed five times......

When Mother Zheng said this, she choked up and sobbed.

Liu Zifeng comforted her: People can't be resurrected when they are gone, you have to mourn and change, and you must take care of your body.

Mother Zheng grabbed Liu Zifeng's hand tightly, and her old tears were rampant.

Mother Zheng said in an old voice again: "Thank you for helping her so much, her spirit in the sky will know." It's just that Gui Ping died unjustly, and I can't swallow this breath. ”

"We will find a way to avenge Comrade Gui Ping, but you have to give us some time." Mother Zheng nodded with tears, and cried again. Liu Zifeng was busy comforting her again.

In the afternoon, Liu Zifeng accompanied Zheng's mother to the United Relief Association of all parties to pack up Zheng Guiping's relics.

In Zheng Guiping's office, the so-called relics are simple, nothing more than her used pen, washbasin, photographs, as well as toiletries and a few old changes of clothes.

With trembling hands, Zheng's mother cleaned up her daughter's belongings, while recalling her daughter's voice and smile, and tears couldn't help but flow down.

Liu Zifeng hurriedly came over to help, carefully helping to clean up, while he carefully looked through each relic, trying to find any clues from her relics, but he was still very disappointed.

He helped Zheng's mother clean up her things, helped Zheng's mother sit on the dilapidated sofa to rest, and sat on Sister Zheng's office chair to catch her breath.

He naturally grasped the armrests of the chair with both hands, and there was a feeling of scratching on the smooth armrests, which should not be there.

He immediately realized that something was wrong and repeatedly touched the place where he had been scratched with his hand. I took the opportunity to lean over to look for something, and took a closer look at the place, and the back of the armrest seemed to be engraved with the English letters "QF". He looked at the ground again with alarm, it had already been cleaned, and the scene had been destroyed, leaving no other traces.

He sat back on the stool, his hand stroking the two letters repeatedly, lost in thought.

In the evening, at the Daejeon Hotel on Tianwei Road, Gulangyu Island.

Liu Zifeng told Wang Ping about the clues he found in the hidden room.

Wang Ping asked puzzledly: "Are there no other clues?" ”

Liu Zifeng said with certainty: When I arrived at the office, the floor was swept and the scene was obviously destroyed.

Wang Ping asked with concern: "Does Sister Zheng have any enemies?" ”

Liu Zifeng thought for a while and said: "According to my experience in the relief society, Sister Zheng is bold and upright, and she is very enthusiastic about the relief work she does, so she shouldn't have any enemies." ”

"Why did Sister Zheng go to the office so late, what important things to do?" Wang Ping asked questions one after another.

Liu Zifeng shook his head and said, "I'm also thinking about this question, what is she doing in the office so late?" ”

Wang Ping asked again: "Does Sister Zheng usually have any preferences?" ”

"I usually like to take notes, and I didn't see her notebook when I was packing up." Liu Zifeng said.

Wang Ping asked one after another: "So, could that notebook have some secrets hidden and were secretly taken away?" ”

Liu Zifeng shook his head.

Wang Ping then analyzed: "Could it be that Sister Zheng went home and found that she didn't bring a notebook, and returned to the office from home to pick up the notebook, at this time, she saw the murderer in the office, peeking at her notebook, or doing something shady." ”

Liu Zifeng pondered and said: "This possibility exists. ”

Wang Ping continued: "When the murderer saw that he was exposed, he became murderous and took the opportunity to kill Sister Zheng. After seeing the murderer, will Sister Zheng take the opportunity to take something and engrave words on the armrest of the seat, so as to tell the investigators who the murderer is.

Liu Zifeng nodded, and said: There seem to be two English letters "QF" on the armrests of Sister Zheng's chair.

“QF!” Wang Ping thought for a while and said, "What does it mean to write?" ”

The two fell silent for a moment.