Crossing the World: This Prince is a Little Sweet

"Your seventh brother is poisoned and poses no threat to you. You can just take action on the night of the full moon. He will have no time to take care of this side."

"Empress Dowager, are you sure the poison in his body has not been removed?"

"No, this poison is not so easy to cure, unless he finds both the Fire Cloud Bracelet and the secret medicine."

Empress Sun spoke confidently. As far as she knew, the secret medicine had been used up long ago. Even with the Fire Cloud Bracelet, it could only eliminate half of the toxins. The toxins that had penetrated deep into the bone marrow could only be completely eliminated by taking the secret medicine.

"He went to Miaojiang this time. Is it possible that people from Miaojiang have helped to solve the problem?"

"It's impossible. Don't worry, my son."

According to her intelligence, Yan Jingshuo had suffered from a poison attack in the palace a few days ago, and it was impossible to cure it.

"That's the best."

"Last night, the Emperor suddenly summoned his seventh brother back to the palace. Did the Empress Dowager know about this?"

"I know. Two dying people are nothing to be afraid of."

Empress Sun picked up the teacup and blew away the tea casually.

"Why did the emperor summon him here? He also sent for the imperial physician..."

"Don't worry, none of the doctors in the Imperial Hospital can tell that the emperor's illness is poisoning. They will only think that it is the end of his life and the disease is caused by overwork."

Empress Sun smiled confidently and looked carefully at her exquisite armor.

"Thank you for your hard work, Empress."

Seeing how confident Empress Sun was, Yan Jingming could not say anything more. He suddenly stepped forward and held Empress Sun's hand.

"The Empress Dowager is becoming more and more beautiful and charming..."

"My son, you really know how to make fun of the Empress..."

Empress Sun was only in her early thirties, and her skin was well maintained, so she looked only about twenty-four or twenty-five years old.

"Empress Mother, you are beautiful but don't realize it. It is your father who misjudged your beauty. How about your son compensate you..."

As Yan Jingming spoke, he bent down, picked up Empress Sun, and walked towards the bed curtain behind him.

Here, Yan Jingshuo took Chu Xi directly back to the palace.

"My Lord, why did you bring me to the palace?"

"I want to trap Xi'er in the palace."

Yan Jingshuo took Chu Xi's hand and walked inside, saying something unexpectedly.

"Why are you trapping me? I'm not running away..."

Chu Xi followed him quickly, circling here and there.

"Xi'er won't run away, but there are too many people who care about her, and I'm worried."

Yan Jingshuo was furious when he thought of Nangong Yu, who often came to see Chu Xi secretly when he was away. If he saw him next time, he would kill him.

"Your Highness is worrying too much. I don't like that Chen Huadan."

Chu Xi thought Yan Jingshuo was still angry about what happened just now, so he took the initiative to explain.

Yan Jingshuo didn't say anything, but pulled her into a room.

"This is where?"

"study"

"What are you doing in the study?"

Chu Xi looked around Yan Jingshuo's study room curiously. It was neatly decorated, and the bookshelves were filled with all kinds of books. There was a landscape painting on the wall, which was able to outline the beauty of the landscape with just a few strokes. There was a chessboard on the table next to the bookshelf, with a few pieces on it.

Every corner of the study reflects the owner's simple and rustic hobby.

"Xi'er, help me look at this."

Yan Jingshuo pulled her to the desk and handed her an envelope.

Chu Xi took it, took out the letter inside, and found it was a blank piece of paper. Chu Xi was shocked:

"Is this the letter written by Prime Minister Murong?"

"Yes"

“It’s been so long and you still haven’t cracked it?”

Yan Jingshuo nodded awkwardly. Prime Minister Murong's method was quite clever. He had tried several methods but none of them worked.

"Have you tried spraying some water on the paper?"

Chu Xi raised her eyes and looked at the handsome man next to her.

"I tried it, it didn't work."

"Really? What about the fire?"

"The kind that makes the writing appear when you bring the paper close to a heat source? I've tried that, but it doesn't work."

Yan Jingshuo shook his head. He had tried these two methods several times, but they still didn't work.

"That's indeed a bit difficult. Prime Minister Murong is really an old fox. Could it be that the letter you took from the secret room is also like this?

Chu Xi looked at the piece of white paper carefully for a while, and sanded every part of the paper with his hands.

"No, the ones in the secret room have already been cracked, except for this one."

Yan Jingshuo looked at the woman in front of him with burning eyes. Her serious look was really charming and attracted him all the time. He wanted to eat her up.

"In fact, the main ingredient of the invisibility potion is alum, which is blue anhydrous copper sulfate. However, this kind of potion can reveal writing when it comes into contact with water. Isn't it alum?"

Chu Xi said as he sprinkled clean water on the white paper, but the paper showed no reaction.

"Anhydrous copper sulfate?"

"Well, it's a chemical."

Chu Xi clearly remembered that Prime Minister Murong did use blue ink to write that night, she was definitely not wrong.

Chu Xi picked up the slightly damp paper, looked at the part that was not wet, reached out and touched it, and suddenly had a bold guess.

He picked up the brush on the table, dipped it in ink and brushed it directly on a spot on the white paper. The paper absorbed the ink and turned black, revealing the white words.

There was a flash of surprise in Yan Jingshuo's eyes. Why didn't he think of this method?

"Humph, this old fox..."

Chu Xi snorted coldly. This old fox was no simple matter. He was smarter than his daughter. He realized that even if someone got the letter, they would not dare to destroy it in order to avoid damaging important evidence.

I would not splash ink so lavishly and paint the entire white paper black to find the answer.

"Your Majesty, look, this is all right."

Chu Xi pointed at the paper on the table, which was covered in black ink by himself and had a few lines of white text on it.

"Xi'er, how did you come up with this method?"

Yan Jingshuo looked at the black paper on the table in surprise, then turned to ask Chu Xi.

"Guess."

"Guess?"

Yan Jingshuo couldn't believe it. How could he guess this?

"I've only read about it in a book. Alum water is made into a colloid-like shape. When written on paper, it can block water and prevent ink from penetrating. This allows the secret transmission of letters to be achieved."

Chu Xi put his hand on his chin, trying hard to recall the knowledge he had learned before, and spoke slowly.

“So as long as you apply ink to the paper written with alum water, the handwriting will appear in the form of blank space.”

Yan Jingshuo looked at Chu Xi in shock and continued what she was saying.

"Yes, that's it."

Chu Xi happily snapped his fingers to show his agreement.

"Xi'er, you helped me a lot again."

Yan Jingshuo held Chu Xi in his arms, rubbing his head gently against her face and shoulders, his tone a little coquettish. His tall and handsome figure embraced the petite Chu Xi, his eyes full of dependence and love for her.

"Yeah, it's a small matter."

Chu Xi raised her eyebrows and replied confidently. She looked at the paper on the table, which read:

The Emperor of Yan is seriously ill and will soon be in chaos. Your Highness can deploy defenses in advance and act according to the plan.

"Your Majesty, Prime Minister Murong wants to collaborate with the enemy and sell out the country, right?"

Chu Xi looked at the words on the table and couldn't help but take a breath. This old fox is really brave.

"Well, a running dog of the Southland."

"Your Highness, it has been so many days, I am afraid that Prime Minister Murong has already noticed something."

Chu Xi poked the man who was hugging her with her elbow, signaling him to be serious.

"He doesn't dare to act rashly for the time being. I have sent people to monitor him. Don't worry too much."

"Ah That's good."

Chu Xi did not ask any more questions. During this period of time, I am afraid that the court will not be peaceful.

"Xi'er, after I'm done with this busy period, I'll go and propose marriage, okay?"