In the drawer of the desk, Li Rui found a copper bookmark. Strangely, the tail of the bookmark was extremely bright and seemed to be rubbing on something.

"Why does he keep polishing bookmarks for no reason?" Li Rui wondered.

With this doubt, Li Rui continued to search. Ma Xinglong was very self-disciplined and his drawers were clean. Apart from some documents, there were almost no other valuable clues.

Just at this moment, an ashtray on the desktop caught Li Rui's attention.

There are still some ash left at the bottom of the ashtray.

"Does Ma Xinglong smoke?" Li Rui asked and replied: "He should not smoke."

"Why should a person who doesn't smoke put an ashtray? These ashes..." Li Rui reached out and touched the ashtray and found that these ashes were not left by cigarettes, but were like traces of burning paper.

.

"What is he burning?"

While thinking, Li Rui looked around the entire study, dark, silent, and suppressed... and kept rushing into his heart.

Then, his thoughts were touched by something and he felt something was wrong.

"Tsk, strange..." Li Rui tilted his head, spread his thoughts along the fluctuating point, and murmured: "Living in today's era, there are still people in their study room with even a little electronic equipment.

No."

In the study, except for paper, pen and books, there are only furniture and even few decorations. There are no computers, no network cables, and no WIFI.

"He neither reads books nor surfs the Internet, so why is he doing in the study? Are he burning paper?"

"Burn paper!"

Li Rui was once again moved by the ashes left in the ashtray!

"He is burning letters!"

It must be a secret letter, and an extremely secret letter, which caused him to burn it after reading it!

And he should be worried about the risk of information leakage when he eliminates the use of all electronic devices. After all, as long as it is an electronic product, there are hidden dangers of leakage.

"Flip books and burn letters, is there any connection between the two?"

Immediately afterwards, a bigger doubt came to his mind.

There must be a correlation between flipping books and burning letters, and this secret should be hidden in this bookmark.

"Friction, friction..." Li Rui fell into reverie.

"Since the letter needs to be burned after reading it, it means that the content in the letter is extremely important. For such an important letter, the content must be encrypted," Li Rui hypothesized: "Since the content of the letter is encrypted, then decryption must be a password book.

Passwordbook..."

As he thought about it, Li Rui focused his attention on the book.

"It seems this should be a cryptobook."

"And the key to unseal the encryption is this bookmark." Li Rui held the bookmark and tried to rub it on a piece of white paper, but there was no trace.

"Copper bookmark, friction... The copper key can leave traces similar to pencils on the wall, but it is the fine copper powder left on the wall by friction."

Because, the diameter of the metal powder particles is smaller than the visible wavelength, they cannot reflect visible light, and they look black.

"This is a physical problem, not a chemical problem unless..."

"Unless a certain chemical component is added to the paper, the copper bookmark can reveal the encrypted contents on it by rubbing the paper."

With this idea, Li Rui became even more troublesome.

Because the letter has been burned, there is no way to know the encrypted content on it. What is the use of just having a password book? Unless a letter will be sent, it is impossible.

Li Rui seemed to have walked into a dead end.

When he had no choice, he suddenly saw the traces on the piece of paper that he had just scratched with a bookmark.

"Traces! Yes, why didn't I think of it?"

"When he is decrypting with a password book, he needs to write down the decrypted content, and maybe there will be traces left."

Thinking of this, Li Rui immediately took out the draft paper and looked at the light carefully.

"Um?"

Sure enough, on the first draft paper, Li Rui discovered clues - there were a few very shallow handwritings left on it through the previous draft paper.

"What clouds are melting? No, it seems to be a word of movement. Could it be a lava action?" Li Rui was excited. In order not to miss any clues, he specially found a magnifying glass to check it carefully.

Unfortunately, the handwriting after Operation Lava was completely blurred and could not be seen anyway. He took a lot of effort to find a few clearer words at the end of the morning.

Three of the words are "Operation Can".

"Operation Can? What the hell is this? Hey, could it be four words, Operation Volcano?" Li Rui said to himself: "Lava vs. Volcano, well, very likely!"

"Is it because Ma Xinglong planned a more hidden volcanic operation based on the lava operation? But Ma Xinglong did not do any conspiracy until his death? What would this volcanic operation be?"

However, the next few words completely confused Li Rui - the last three recognizable handwritings were names that he would never dream of, and in other words, they still had a deep connection with him.

That's Xiao Yixiao.

"Xiao Yixiao?" Li Rui compared it repeatedly, and even thought that the handwriting was blurry, but no matter how you look at it, those three words were "Xiao Yixiao".

"How could it be Xiao Yixiao? Could it be that he has a duplicate name? Dad isn't he already..."

Four years ago, Xiao Yixiao died of illness.

Three years ago, the Xiao family was in a rage, and dozens of people from the Xiao family were killed. The real murderer behind the scenes was Jin Xinxin.

But at this time, Xiao Yixiao's name appeared in Ma Xinglong's letter. This made Li Rui really puzzled.

"Hey, senior sister, where are you?"

Li Rui called Liu Xiao, and at this time, he could only ask for help from Liu Xiao.

There is no doubt that the Baiyun Guard came here to blow up the place, which must be to destroy the clues that Liu Cun had probably fallen in the study.

However, when Li Rui grasped these clues, he became even more confused.

Dusk is coming, and the sky is covered with gold and powder, as if you can catch a lot of money by just catching it. The sun is hiding behind the mountain, revealing only half of its body. On the other side of the sky, the moon is already hanging there.

Back at Turtle Village, Li Rui and Liu Xiao both frowned.

They were walking around the village, and their mood seemed to be aroused by crescent moons.

"Senior sister, is this a coincidence?" Li Rui asked.

Liu Xiao shook her head and said, "There is no coincidence in this world. Have you ever thought that Operation Volcano may have been involved in three years ago?"

Li Rui nodded and said, "I have thought about it, but I can't figure it out, why is it the Bai family?"

"There must be articles here, and we need to uncover the truth."

"Senior sister, but I'm worried now..." Li Rui stopped talking.

"Are you worried about Xiao Xiao?" Liu Xiao said.

"Well," Li Rui nodded and said, "Xiao Xiao is the only living person in the Xiao family now. If the volcanic operation is implicated in the Xiao family, I am worried that Xiao Xiao will definitely be affected."

"Since we sent Natasha to the Xiao family in Shanghai, she has lived a new life. When you go to her at this time, wouldn't you uncover the wound that she finally healed?"

Li Rui sighed and said, "Yes, to be honest, I don't want to bother her. If she can live again, this is the best choice for her."

"Also, Jin Xinxin's old fox, maybe he is staring at her." Liu Xiao said: "Do you still remember what the minister told you back then? He wants to make you a real trump card to defeat the enemy,

Time exchanges space and finds the real motives of the person behind Wang Binghao. That is why you hide your identity and fade out of people's vision."

"Well, of course I remember, but what does this have to do with the current situation?"

"The minister has already planned to make you reunite in the future."

"The broken mirror re-rounded?" Li Rui said in confusion: "How to make a round method?"

Liu Xiao explained: "The Xiao family in Shanghai and the Xiao family in Jiangmen are of the same origin. Xiao Yixiao's father once adopted one of his sons to the Xiao family in Shanghai, which is now the head of the Xiao family in Shanghai."

"So, Xiao Dakang is still Xiao Xiao's real uncle."

"Well," Liu Xiao continued: "The minister has portrayed himself as a cold-blooded image of the cold-blooded person who has used you to eradicate you after using it, in order to protect you. But this requires a prerequisite."

"You mean the 'Fire' organization..."

"Well, Natasha defected from the "Demon Eye", it was "Liehuo" who took the blame for us. Once Liehuo came out to clarify, the minister's play of getting rid of Jin Xinxin by Natasha's hand will not be able to continue

But now it seems that the person who brought her out of the demonic eyes has no malice towards us, otherwise Xiao Xiao would not have lived safely in the Xiao family."

"So, do you suspect that 'Liehuo' is related to the Bai family?"

"I'm just guessing," Liu Xiao'e said with a clump of eyebrows: "Bold assumptions and be careful to verify. This is what the minister asked me to tell you just now."

"Bold assumptions, be careful to prove it?"

"Yes, the Minister knows that you will definitely investigate the truth of the matter. Instead of dissuading you, it is better to let you investigate. Anyway, the situation is now on the string and has to be fired."

Li Rui nodded and said, "The master always thinks longer than me. Since Yuan Jian and Qin Henan arrived in Haizhou, I knew that the Celestial Empire was about to usher in a big change. Now, although we temporarily restrict Bai Heng to a corner of Jiangnan.

, But this terrifying balance will definitely be broken. By then, all the powerful people will inevitably raise their flags and rise up like He Zhen, how could they remain indifferent? I think the master hopes that I will prepare early and deal with it in advance."

"But you must also be mentally prepared. The storm is about to come and the wind fills the building. The darkness before dawn is always long and lonely."
To be continued...