Ning Zhiheng asked again, "What is the situation with the other two paper experts?" ”

"According to them, their analysis of the fiat paper fibers is not yet complete, and there is still a lot of work to be done to make paper that is exactly the same as fiat currency, but this billion fiat currency alone is enough to give us a headache." He Siming said.

The material requirements of the paper required for the production of banknotes are very high, the paper of banknotes in various countries is specially manufactured, and most of the papermaking raw materials are made of cotton, hemp and other plants with long fibers as pulp, so that the paper made is smooth and tough, good stiffness, strong wear resistance, and after long-term circulation, the fiber is not loose, hairy, and not broken.

Moreover, some methods are also used in the papermaking process to make the paper have certain characteristics to clearly distinguish it from other papers.

However, each country has its own secret method, for example, Japan's own yen, which is made of the fiber of a unique plant in their own country as the main raw material, and then made of other plant fibers, in which the proportion of various ingredients is also top secret, and other countries do not have this raw material at all, so the yen is difficult to counterfeit.

Now in China, the same is true for fiat currency, and the production level of the American mint is also very high, and the paper used is also a high-grade raw material, so it is also very difficult to make exactly the same paper.

Ning Zhiheng nodded and said: "It seems that they have broken through the technical problems of paper, there is still a period of time, at present, we only need to solve the problem of engraving, what do you think about how to destroy the engraving?" ”

When He Siming heard this, he couldn't help but shake his head, and said: "It's impossible, Kanda Yushan attaches great importance to the protection of the engraving, and has never left it, this time it was kept by me for a period of time during transportation, and he usually carries it with him, and every time he hands over to me, he will use a microscope to check it again, for fear of damage, I just want to do hands and feet, it is impossible, now the engraving has entered the banknote printing base, it is even more impossible, the engraving is placed on the fourth floor of the building, and Kanda Yushan also works there, Complete the final engraving of the engraving. ”

Speaking of which, He Siming handed over the internal structure of the building he had drawn to Ning Zhiheng.

"This is what I drew from memory, especially the interior layout of the treasury on the east side of the fourth floor, where fiat currency is placed, I have drawn it all, you can take a look!"

Ning Zhiheng was overjoyed when he heard it, although he also had the structural diagram detected by Wang Hanmin and others, but it was drawn with the memories of the previous staff of the library building, and many places were not necessarily accurate, after all, if Kitaoka Ryoko wanted to turn it into a banknote printing base, he would definitely carry out some reconstruction, and now He Siming has entered this building, and the two are compared, so that he has a more specific understanding of the internal structure.

Ning Zhiheng took over the structural diagram and examined it carefully, and sure enough, he found that it was similar to the structural diagram obtained by Wang Hanmin before.

But on the fourth floor, where the original money printing machine and fiat currency were placed, Yoshiko Kitaoka made a great deal of renovation, and in addition to the necessary support columns and walls, many houses were opened up to form a large workshop where the money printing machine was placed, and next to it was the treasury where the fiat currency was placed.

"There were more than twenty guards in the whole building, and I judged that the total number should be at least doubled, that is, about forty.

As I passed through the first and second floors, there was the sound of people talking and chatting, and I judged that it should be the dormitory of the staff and security personnel.

When passing through the third floor, there is a phone ringing, and there is also the sound of a call, which should be the office area.

I spent the longest time on the fourth floor, and the situation was the clearest, and it was where the printing press was installed and fiat currency was stored, and it was also the place we needed to know the most.

Iron doors are welded at the staircase on each floor, and the staircase and stairway are guarded by guards, except for the fourth floor, which is not only equipped with a fully enclosed iron door, but also has six heavily armed guards and two light machine guns.

To enter the fourth floor, you need the key worn by Ryoko Kitaoka to open the iron door, the door of the warehouse inside is a steel gate, which is very strong, and it and the door of the secret room also need the key of Ryoko Kitaoka to open, and it is impossible to rush in by force. ”

He Siming recounted carefully, Ning Zhiheng thought carefully about the structural diagram, and then asked: "It seems that we can only start from the warehouse, are there any loopholes in the windows of the warehouse that can be exploited?" ”

"Impossible, the glass on the outside of each window is always closed, and the inside is welded to death with iron bars, and the interval between each one is less than ten centimeters, not to mention an adult, even a child can't drill through, it is completely enclosed, there are no loopholes at all!"

"Are there any guards on the roof?"

Ning Zhiheng tried to find a way to enter from the top of the building, and with his skills, it might be possible to climb to the top of the building in a very short time and invade the fourth floor from the roof.

"When I was resting on the fourth floor, I heard the sound of many people walking on the roof, and I judged that there were people guarding the roof, and there was definitely more than one person."

Ning Zhiheng couldn't help but secretly take a breath of cool air, Kitaoka Ryoko turned the entire building into a military bunker, heavily guarded, and the interior was tightly arranged, and there were almost no gaps.

Ning Zhiheng frowned and asked: "Isn't there a little loophole, Shanghai is a coastal area with humid air, so many paper banknotes are placed, at least there should be a ventilation channel, otherwise the dark and humid environment will make the paper damp and soft, she should understand these truths." ”

He Siming pointed to a point on the structural diagram and said: "In this position, there is a vent on the upper right side of the south side of the warehouse, and a fan is installed, but I see that the diameter is only more than 40 centimeters, and the gap between the fan blades is that even a child can't get into, and the bare wall outside has nowhere to stay, so it is impossible to enter." ”

Ning Zhiheng looked at the structural diagram, lowered his head and pondered, and then said: "The situation you said is very important, at present, it seems that it is impossible to enter from the inside of the building, you can only find a way to enter from the top of the building, or from this vent, but this difficulty is too great, you must plan it carefully!" ”

Ning Zhiheng is very confident in his skills, he feels that as long as he designs well, he may have the opportunity to sneak in, but it is too risky to do so, and if he is not careful, he will let himself fall into it, and the consequences will be disastrous.

It seems that he first has to start with Kanda Yushan's body, although it is only a symptom but not a cure, but it is good to be able to delay it for a while, and it is relatively safe and simple to do so, fortunately, he has some ideas before, and I believe that the chance of success is still relatively large.

Ning Zhiheng ordered: "I will take action immediately, and in the next period of time, you should not get involved in anything in the banknote printing base, otherwise once there is a problem, it will be easy to involve you." ”

"Yes!" He Siming nodded in agreement.

When Ning Zhiheng returned to Fujiwara, he notified the Tan Mansion in the concession that night, and immediately dispatched a translator who was proficient in Japanese to enter downtown Shanghai and wait for the dispatch.

Ning Zhiheng has always had a few translators who were brought back from the Wuhan period, proficient in Japanese, for so long, they have been in the industry under his hands, responsible for monitoring and translating, and teaching intelligence officers Japanese, now many intelligence officers can understand Japanese, but the spoken language has not been fluent, among which Zuo Rou's Japanese has improved the fastest, and with her hard work, her Japanese is now very fluent, but there are still some accent problems.

Now Ning Zhiheng needs a person who is proficient in Japanese to cooperate with the next action, but there is no one around him except Yi Hua'an's Japanese can be real.

Of course, Ning Zhiheng would not let Yi Huaan take this risk, once he made a mistake, the consequences would be unpredictable.

Three days later, one evening, in a house in a Japanese gathering area, Yamada Shinkaku had just returned from work, and when he opened the door, he found that it was dark inside.

He couldn't help but feel nervous, there was still his wife and son at home, usually when he returned home, his wife should have greeted him a long time ago, shush the cold and ask for warmth, and change his clothes and shoes, and his son would also run out and jump into his arms.

But there was no one in the room today, and he raised his hand and turned on the electric light, and the room suddenly lit up.

Suddenly, he found a young man sitting cross-legged in the living room of his house, looking at him with an indifferent smile.

Yamada Shinjuku subconsciously prepared to pick up the wooden stick behind the door, but at this time, he felt a gun on his waist, and then someone pushed him into the room, and the person behind him also walked in and closed the door tightly.

"Yamada-kun, contemptible Matsui Kei, please don't get me wrong, we are not wicked people, we took the liberty to come to the door because we want to talk to you about a business!" The man in the middle of the living room whispered.

"What do you want to talk about? Where are my wife and son? Yamada Shinkaku said with a gloomy face.

He looked around, and there was no trace of his family in the kitchen or bedroom.

"Don't look for it, Yamada-kun, my wife and child have been picked up by me!" Keio Matsui said softly.

Yamada Xinjue only felt the blood gushing up, and asked sharply: "Who are you, what do you want to do, release my family quickly, otherwise I will call the police!" ”

But as soon as these words came out, the man with a gun behind him hit him heavily on the back with the butt of a gun, and Yamada Shinkaku only felt a sharp pain in his back, and a strong force knocked him to the ground, and his body fell in front of Matsui Eisei.

Matsui frowned and waved his hand, and the gunman took a step back.

After a while, Yamada Shinjuku slowly straightened up, staring at each other with hateful eyes.

"Yamada-kun, you're too impulsive, I said we had no ill intentions, just a deal."

Speaking of this, Matsui Kesheng took out a small suitcase from behind him, pushed it in front of Yamada Shinjue, and then opened the suitcase with his own hands, and suddenly a box full of banknotes was displayed in front of Yamada Shinjue.