Later, they found many books that could be found everywhere and used this method to decrypt the code, but they all failed.

Song Tingfeng and Zhu Guangxiao were a little discouraged. The former narrowed his eyes and said, "Ning Yan, you are suddenly not smart anymore."

It can be clearly felt that Xu Qian's thinking activity has seriously decreased, and he is not as sharp as before.

Xu Qian raised his head, stared blankly at the crisscrossing beams, and said angrily: "Did your friend feel particularly lethargic during the days when his health was not good?"

"Why, why are you mentioning my friend again..." Song Tingfeng felt a little embarrassed.

"Haha." Xu Qian'an said, I haven't slept in thirteen days, how fast do you expect my mind to turn? Susu's useless thing can't even refresh her mind, so what's the use of raising her.

However, the advantage of this charm is not the core, but the matching shell.

Raising a Mei is equivalent to raising a fish pond, which is more relaxing and comfortable than raising spare tires such as Huaiqing, Lin'an, Fuxiang and Caiwei.

When the time comes, the owner of the fish pond, Xu Qi'an, holds a steel fork in his hand, and he will plunge it into the fish quickly and accurately.

"It's better to take a rest." Song Tingfeng suggested.

"Ask the postman to bring some sweets." Xu Qian said.

The best way to combat brain fatigue is to consume sugar. Sugar is the only energy the brain can use. Most people like to eat sweets. In fact, it is not that the sweets are delicious, but that the brain prompts the body to consume sugar.

Xu Qian needs sugar very much now.

The postman made them sweet longan and egg drop soup, raisin cakes, almond tofu curd... It was sweet.

Xu Qian, a short man, chose the longan and egg drop sweet soup and pushed the almond tofu curd to his eyes. Song Tingfeng suddenly became happy and said with a smile: "Ning Yan, how did you know that I like to eat sweet tofu curd."

Because you look like a heretic... Xu Qian said with a smile: "Because we are brothers. I see you crying, so I will give you tofu to sweeten your heart."

Who shed tears? Song Tingfeng rolled his eyes, knowing that he was alluding to Miss Su Su.

Having said that, Miss Su Su is so wonderful, she is a rare girl who can fight with me for three hundred rounds... Song Tingfeng thought about the ecstasy that happened in the teahouse private room today for ten times.

"You won't understand. You are a prodigal and I am not." Song Tingfeng shook his head and sneered:

"When you first joined the watch team, I advised you to marry Lu Qing, the head catcher, but you reluctantly disagreed, and then you fell in love with Fu Xiang. I knew at that time that you were the same kind. If the head catcher Lu married

Here you go, it’s a flower stuck in cow dung.”

Xu Qian's mind flashed with the heroic appearance of Lu Qingying, and he said angrily: "Although Lu Baotou is not as beautiful as Fuxiang, you are going too far to say that she is cow dung."

"I didn't say she was cow dung, I said you."

"Then what do you mean by flowers on cow dung?"

"...."

After finishing dessert, because the famous detective Xu Ningyan was in poor condition, Song Tingfeng took the initiative to take on the heavy responsibility of reasoning and cleared his throat:

"Let's think about it for a moment. If I were Zhou Min, I would definitely hide the codebook in a place where the governor's team can find it at any time, but where it won't attract anyone's attention."

"Yeah!" Xu Qian nodded.

"Zhou Min's residence has been inspected, and there are no hidden compartments or anything suspicious. We have just compared the books he left behind," Zhu Guangxiao said.

Song Tingfeng thought for a while and touched his chin, "...Maybe it's not necessarily a book? Zhou Min is very thoughtful, and he can definitely think of things that others can think of.

"We might as well change our thinking. It might be a book with writing on it, but it's not a book? Ning Yan, do you think this is possible?"

"Very good, Tingfeng, your intelligence has successfully attracted my attention. You are a genius who was delayed by the women of Jiaofangsi." Xu Qian praised him and asked:

"Then what do you think it could be? It's not a book, and it's among Zhou Min's belongings. And it has to be quite thick..."

Xu Qian suddenly paused.

"Is it the Almanac?!" Song Tingfeng shouted out first.

Zhu Guangxiao, an honest man who worked hard, accurately rummaged through the relics and found a thick almanac: "Is it that?"

"That's it!" Xu Qian exhaled all the turbid air in his chest, his eyes filled with excitement.

It is both a book and not a book. It is both eye-catching and unremarkable. Based on the speculation and analysis of Zhou Min during this period, Xu Qian is very confident that this is Zhou Min's style.

The three of them couldn't wait to open the almanac, starting from the first character and counting according to the picture to the 162nd character: day!

The "day" of Yimao day.

Then came the three hundred and forty-seventh word, the fourth word, the first word, and the second word.

Combined: Mo Riguang Ding Yiwu!

Obviously, this is wrong.

Then, they used the second method, taking the number of pages instead of the number of words.

If we take the number of pages, then each number of words corresponds to a certain day in the calendar. The combination is as follows:

Silent, April 6th, January 15th, January 29th, January 25th, January 26th.

"It's wrong again." Xu Qian threw away the almanac and scolded his mother: "This idea is wrong, start over."

"Perhaps we can unpack the word "mo" first, because it is the only word and it comes first." Zhu Guangxiao put forward his own idea.

The meaning of being first is very important.

Xu Qian pinched his eyebrows: "Then do you have any ideas?"

Zhu Guangxiao shook his head.

Xu Qian asked again: "The word "mo" has no special meaning in our yamen, right?"

Song Tingfeng pondered: "The governor and Jiang Jinluo have already studied the secret code. If the word "mo" points to a secret code in the Yamen, Mr. Jiang and the governor should be able to discover it."

"What can the governor find? He is only good at guessing crossword puzzles." Xu Qian curled his lips, and the next moment, he was stunned.

Inspiration burst out in my exhausted mind, flashing like lightning.

He remembered that when he was still in the police academy, a professor who studied criminal psychology once said that a person's behavior is closely related to his habits.

When analyzing and profiling the target person, you must first collect as much information as possible about the target person and understand their habits.

No matter how cunning a criminal is, there are traces of his behavior patterns, which are his habits.

What are Zhou Min’s habits?

It's an anagram!

Yang Yingying said that Zhou Min likes to play word puzzles with her while drinking... Therefore, when Zhou Min is thinking about how to hide evidence and leave clues, he will habitually move closer to the word puzzle... From this inference

, the only word in the two sets of codes is also an anagram. Xu Qian's thinking is getting clearer and clearer.

Song Tingfeng and Zhu Guangxiao looked at each other and kept silent in a tacit understanding. Just for a moment, Xu Ningyan's state returned, as wise and focused as when he was investigating the Sangbo case.

Mo, when you take it apart, it's Heihe Quan... Xu Qian pinched his eyebrows and asked, "I remember my colleague who went to Huangbo Street said that there is a dog market there?"

Song Tingfeng said "Hmm": "It's the dog market, what's wrong?"

Xu Qian said: "The word silent is broken down into "black" and "dog", and the information about Huangbo Street is the clue left by Zhou Min in the previous word puzzle game. I think it can be matched now."

"Do you think the code points to the dog market?" Song Tingfeng frowned, "Then what does the color black mean? Isn't it too arbitrary to judge that the code points to the dog market with just the word "dog"?"

"I have an idea." Xu Qian didn't finish his words, he went out and called the postman.

"My lords, what are your orders?" the postman asked.

"How much do you know about Huangbo Street?" Xu Qian asked.

"Huang Bo Street, that place is a mess. It's fine and quiet during the day. But at night, it's a mixed bag of people, including thieves, tourists, and even bandits from outside.

Go to that street." The postman replied.

Is it dog meat that is sold there, or what kind of meat... Xu Qian sneered, and thought: "Bandits and gangsters shouldn't go there just to get a bite of dog meat, right?"

"Of course not. On the surface, Huangbo Street sells dog meat, but it is actually a black market. It sells shady things and engages in shady transactions," said the postman.

"Have you ever been to the black market?" Xu Qian asked.

The postman suddenly looked ashamed and muttered: "I went to buy dog ​​meat."

Why do you have to make an awkward expression as if you were caught using your hands to buy dog ​​meat...Xu Qian frowned and said, "Speak in human terms."

The postman whispered: "I found a private prostitute in Xin No. 6 shop. This is what buying dog meat means."

You are too young to be so coy and dare not say anything when looking for a private prostitute... The three of them shook their heads and sighed at the same time.

"Xin No. 6?" Xu Qian asked.

"The black market shop is named after the heavenly stems and earthly branches." The young postman's face turned red and he felt like he was being publicly executed.

Xu Qian nodded: "I understand, you can go down first."

After the postman closed the door and left, and listened to the sound of footsteps fading away, Xu Qian shrugged: "The situation is very obvious. Black Dog refers to this black market selling dog meat."

As for why there is such a place in Baidi City, it is not surprising that shady transactions are done under the nose of the government.

Even the most virtuous city in the world has many black markets.

Huangbo Street is not far from the inn, but it belongs to the outer city and there is no curfew at night.

"Then what do the other codes refer to?" Song Tingfeng asked and answered: "It should tell us who to look for when going to the black market, or how to look for it."

"The answer lies in the almanac." Xu Qian said with certainty.
To be continued...