Thinking of this, the anger on Lao Zhu's face eased slightly. Looking at An Qing, he stretched out his fingers and tapped the letter in front of him, and said slowly: "Tell me, what is going on, what is the secret in it?"
As soon as Lao Zhu finished speaking, Zhu Biao couldn't wait to say to Anqing: "Hurry up and tell me, this is a good opportunity for you to make meritorious deeds. Do you still want to make your father angry?" After saying this, Zhu Biao was actually more worried in his heart. Everyone is curious. At first he was puzzled and could not figure out the secrets inside these ghostly drawings. He deceived himself and thought that maybe these two people were deliberately confusing him, so he didn't take it to heart. Now that he heard that these were actually messages sent between the two people, Zhu Biao really wanted to know how the two people sent messages.
What does it mean to make meritorious deeds? Did I ever say that she should be punished and make meritorious service? Lao Zhu glanced sideways at Zhu Biao, but did not object. If the secret of this message is really as powerful as we think, it would be okay to even blame Anqing for meritorious services.
After all, Anqing is his biological daughter, and I may not be able to spare her when she is angry, but now that she is angry, no matter how big of a fault she makes, we, the father, will have to bear it for her. Children are all debts to their parents, so what can be done?
An Qing didn't want to say it at first, but after hearing what the prince's brother said, he still didn't know what was going on? No matter what achievements she makes at this time, it will be of great benefit to her and Han Du's affairs.
After thinking about this clearly, An Qing told the secret in the letter without hesitation. Taking the pen and ink and a piece of paper and placing them in front of his father, An Qing took up the pen and wrote down the numbers from 0 to 10, and then wrote the corresponding Chinese characters from 0 to 10 under the numbers. With a slender jade finger, she pointed at the row of numbers above and explained: "These are numbers, and they represent the same meaning as the ones below."
After Zhu Biao heard this, he couldn't wait to grab a letter, looked at it, frowned, and asked: "But it's wrong, you have all these things in it. Even if you write them out one by one, it's just Something like 7361, can this represent the above meaning?"
When An Qing saw the prince brother holding the letter between herself and Han Du and asked herself, her young face couldn't help but blush, and continued to explain: "Of course it's not just that," she reached out and took the letter back from Zhu Biao's hand, Princess Anqing Blushing, he pointed to the row of numbers above and continued to explain: "These numbers represent a word, the first group of numbers represents the number of pages, the middle group of numbers represents the number of lines, and the last group of numbers represents the number of lines. The number represents the first word."
What's the use of this?
Lao Zhu and Zhu Biao were still puzzled.
Seeing this, An Qing could only give the final explanation in a low voice, "As long as the two people writing the letter have books with exactly the same content, they can hide the content of the letter they want to write. ....."
Understood!
Lao Zhu and Zhu Biao suddenly realized and looked at each other. It turned out to be so simple. As long as the method is agreed upon, secret messaging can be achieved. Although the method is simple, the effect of this secret is not simple. Anyone who looks at the ghostly drawings in front of them will be blinded. The confidentiality is too high, and there is basically no possibility of leaking the secret.
The secret of the ghost-drawing talisman was solved, but there was still a question lingering in Zhu Biao's heart. "But the two of you have only met once and haven't even spoken to each other. How did he teach you such a complicated thing?"
At this point, Zhu Biao didn't need An Qing to tell him, he knew that Han Du must have taught An Qing these things. If Anqing had the ability to think of these things, he would be damned.
At this time, An Qing didn't want to hide anything anymore, so he reminded: "Didn't the prince brother give An Qing a letter?"
Zhu Biao remembered that he had indeed sent a letter to Han Du, "But it was just a few pieces of white paper. We opened it ourselves and saw that there was nothing in it. Could it be that Han Du passed it that time and in the letter Who taught you how to do this?" In order to clarify the doubts in his heart, Zhu Biao even said something as embarrassing as peeking into his sister's letters, which shows how anxious he was.
Fortunately, Lao Zhu didn't pay much attention to this matter. In his opinion, 'the eldest brother is the father'. Can reading his sister's letters be called peeking? That's called looking at things above board, and that's the attitude of a responsible person towards my sister.
An Qing nodded and explained in a low voice, "It just looks like white paper, but it's not. The writing on it is just invisible. When it is roasted by fire, the writing will appear."
I see. Zhu Biao's brows widened, but a question came to his mind again, "But there were so many pieces of paper, if we took out one, wouldn't you be able to know all the methods Han Du gave you?"
An Qing rolled his eyes at Zhu Biao, but he didn't expect that the always kind-hearted prince brother would still have such thoughts in his heart. He said angrily: "The contents of the five pictures Han Du wrote were all the same, and he also said in the letter how many pictures he wrote in total. If there is one missing, I will know."
When Zhu Biao heard this, his tone was stagnant. After a moment of pause, he sighed: "Han Du, this guy is really thoughtful." After he finished speaking, he sighed for a while, as if he was very sorry for something.
When An Qing saw it, he glared at Zhu Biao dissatisfied and said, "And Brother Prince, you don't think that you can understand the letters between Han Du and me if you know this method, right? There are so many books in the world, Brother Prince, you can Do you know which one I’m using?”
Lao Zhu and Zhu Biao were stunned after hearing this, "Yes, there are so many books in the world. Even if you know the method, how can you decipher the contents of the letter if the book is wrong?" '
After understanding this, Lao Zhu's face became slightly happy. In this case, this method is really suitable for conveying military orders.
But which book did Anqing use? Lao Zhu lowered his eyes and fell into deep thought, and a memory that was about to be forgotten came to his mind. Lao Zhu suddenly spoke, "I heard that you borrowed a copy of The Analects of Confucius annotated by Zhu Xi from your mother some time ago. I wonder if that's the case? You have a lot of books in this palace. Even if you want to read, You don’t have to read an Analects of Confucius, right?”
As soon as her father guessed it, Princess Anqing suddenly felt ashamed and annoyed. Quickly and randomly, he collected all the letters on the table.
I saw An Qing become like this after his father said a word. Zhu Biao didn't know that the Analects of Confucius annotated by Zhu Xi was the one that An Qing and Han Du trusted between them?
