After coming out of the hospital and arranging for the police officers to continue the investigation, Yu Jingque looked at the sky and prepared to go home.

He came back very early today, Yu Mosheng and Ji Youning were not at home, so he said hello to his family and ran to his room.

I didn't stop in the room, changed my clothes, and came to the study.

Entering the study, locking the door, Yu Jingque took out all the notices he tore off.

The things on the desk were removed by Yu Jingque, and the notices were placed on top one by one.

But there were many of these notices overlapped, seven or eight for the most, and four or five for the few.

He took a copy and put it on the table, then dipped his brush in water and began to brush it on the poster.

After brushing a thin layer of water, Yu Jingque took tweezers and cautiously tried to uncover the paper little by little.

The process is slow, and it's not one layer, there are many layers, and there are many sheets.

This process requires patience, and Yu told himself not to rush.

After dark, Yu Jingque's desk was already covered with notices, and the overlapping ones were all stripped away by Yu Jingque.

Some were torn apart and re-spliced together, a total of about twenty sheets.

But Zhou Jiezhi only posted one.

It may seem difficult to peel off these notices just now, but with enough patience, it can be done.

It's just that the next work will be more troublesome.

Yu Jingque must find which of the 20 or so notices was posted by Zhou Jiezhi.

Huang Tian said that some people put up leaflets against the Manchurians and resisted Japan, but now it is impossible for Yu Jingque.

Zhou Jiezhi's younger brother, Zhou Jieming, may have put up leaflets against the Manchus and resisted Japan because they were members of the Progressive Society.

Zhou Jiezhi won't, Zhou Jiezhi won't do such a thing as pasting flyers, which is not in line with Zhou Jiezhi's identity.

Huang Tian was stabbed at the time, and after being rescued, he was taken to the hospital, and he took it for granted that anti-Japanese elements were posting leaflets.

None of the 20 or so leaflets or posters on the table had anything to do with the anti-Japanese elements.

This further proves that Yu Jingque's judgment is correct.

But another suspicion arises.

That is, since Zhou Jiezhi was not posting a leaflet of anti-Japanese elements, why did he panic after seeing Huang Tian, so he did not hesitate to kill people?

Is this a problem?

Since there is no suspicion of what Zhou Jiezhi posted, why did he take the risk of killing people?

Yu Jingque thought about this question in the afternoon, so he took all these flyers back.

He knew that the problem must lie in the leaflets, and what Zhou Jiezhi posted at that time may be more important than the anti-Manchu anti-Japanese propaganda.

"Which one?"

Looking at the paper on the table, Yu Jingque fell into deep thought.

Missing person notice?

Job Recruitment?

How do you want to rent a house?

Factory recruitment?

Item price reduction?

New store opening?

New arrival?

There are all kinds of lists, which one is posted by Zhou Jiezhi?

"Surprise magpie, come down to eat." Ji Youning's voice came from outside.

Yu Jingque glanced at his watch, it was already past seven o'clock, and it seemed that it took a long time to peel off these leaflets.

"Just come." Yu Jingque agreed.

Looking at the things on the table, Yu Jingque got up and left, locked the study after going out, and put the key in his pocket.

There was still a flyer on the table in the study, and although he couldn't prove anything, he didn't want to be seen.

"I didn't see you when I came back today, what are you doing hiding in the study?" Yu Mosheng also came back and asked angrily.

When Yu Jingque came back in the afternoon, he told his family to call himself again when he was eating.

Smiling, Yu Jingque sat down and said, "Love learning and read books." ”

"You're going to do what you can." Yu Mosheng closed the newspaper in his hand, it would be strange if he believed Yu Jingque's words.

After eating, Yu Jingque said to Ji Youning: "You go to bed first at night, my study is not finished yet." ”

Ji Youning was very understanding and didn't ask Yu Jingque what he was busy with, from Yu Jingque's reluctance to be disturbed, she could see that Yu Jingque didn't want to say.

Since she didn't want to say it, she didn't ask, and they both felt comfortable with each other in this way.

After eating, Yu Jingque locked himself in the study again.

His gaze swept over the papers.

Exclusion.

Today, the flyer on the first layer must not have been posted by Zhou Jiezhi.

The first layer is all thrown away.

In this process, Yu Jingque eliminated six sheets, and these six Yu Jingque did not take a second look, and directly kneaded them into a ball with his hands.

These six can't be, two or three days have passed since the events of that night, and it is impossible that they will still be on the first one, and they will definitely be covered by other leaflets.

In fact, Yu Jingque wanted to throw away the second layer as well, but he was worried that there would be fish that slipped through the net, so he chose to be conservative.

It's still the method of elimination, and if you throw away the bottom one, you can also throw away six sheets.

One of the six had a date, a week ago.

The elimination method eliminated twelve cards at once, and there were still fifteen left.

How to rule it out next?

Yu Jingque was also a little unidean, he began to look at them one by one, carefully.

There is a full exclusion of the phone.

There is a contact number, Yu Jingque thinks that it can't be Zhou Jiezhi's post, and it is too simple to call to confirm.

Among the fifteen, there are many contact numbers, and there are six.

After the exclusion, there are nine left.

Although a lot has been ruled out, there are still a lot left, and Yu Jingque's brows can't be stretched.

Wait a minute......

Yu Jingque continued to observe the nine leaflets, and found that some of the leaflets were of good printing quality and looked to be printed by a large factory.

Zhou Jiezhi's flyer is probably printed by himself in the school.

Then the quality is definitely not as good as that of large factories, continue to exclude.

This time five more were eliminated, and there were four left.

The desk went from being covered with leaflets at the beginning to now there are only four left, which is a complicated process.

Excluded, Yu Jingque didn't look at it, didn't think about it.

There were only four on the table in the eyes.

Choose one of the four?

Which one could have been posted by Zhou Jiezhi?

Now there is really no way to rule it out, Yu Jingque can only look at them one by one.

This is not a simple leaflet, this is actually the transmission of Zhou Jiezhi's information.

Yu Jingque can believe that the bulletin board is the place where Zhou Jiezhi and them pass on information, and the information is encrypted in the leaflet by them.

Encrypted leaflets, posted on designated bulletin boards, are their way of transmitting information.

That night, Zhou Jiezhi was passing on information, but he happened to be bumped into by Huang Tian.

In fact, Zhou Jie didn't have anything to do, the flyer was encrypted, and Huang Tian couldn't see it.

But being a thief is weak-hearted, even if Zhou Jiezhi is not a thief, he will think that Huang Tian has discovered his secret.

At this time, in order to organize the safety of transmitting information, Zhou Jiezhi had to kill the so-called insider, Huang Tian.

At that time, Huang Tian, in Zhou Jiezhi's opinion, was an insider, and he had to be killed.

It's a pity that Huang Tian didn't die, fortunately, Huang Tian didn't know what Zhou Jiezhi was doing at all.

Yu Jingque took back all the leaflets on the bulletin board, just to unravel the secret on it, and wanted to know what information Zhou Jiezhi was transmitting.