Su Yiyunge opened the sachet with great effort. Among the scattered dried flowers and herbs, a pearl button rolled out, which was particularly conspicuous.

Su Yiyunge's pupils suddenly shrank.

Rong Zhen took a step forward: "Does it look familiar?"

Su Yiyunge seemed not to hear his words. She held the pearl button in her palm, only to feel a sweetness in her throat, and spit out another mouthful of blood.

Rong Zhen said, "Do you really think that if Su Yidaer died, you can replace her?"

Su Yiyun's eyes changed, revealing a charming yet fierce expression: "How did you see that?"

"If Su Yiyun really wanted to frame Su Yidaer, at least she wouldn't use such a method that is so easily discovered." Rong Zhen said lightly, "Su Yidaer doesn't know martial arts at all, so as long as someone investigates her body, she will be cleared of innocence quickly." He turned and said, "So you are not Su Yiyun, at least you were using Su Yiyun's body when you did these."

Back to half a day ago, Lu Zheng stood beside Su Yidaer's body, Suddenly, he asked Rong Zhen an unrelated question: "If you want to kill someone, would you frame him first?"

Rong Zhen frowned.

"There is one thing I can't figure out. If Su Yiyun Ge wanted to kill Su Yida'er, why did she leave such obvious evidence on the roof to guide us to catch Su Yida'er? Isn't this contradictory?" Lu Zheng analyzed, "Besides, with Su Yiyun Ge's meticulous personality, how could she do such a thing?"

"Maybe she wanted to use this to cause a war between us and the Jie people?" Rong Zhen asked.

"Let's not talk about whether Princess Su Yidai'er is really that important." Lu Zheng said, "The status of women in the Jie people is low. Even if she is a princess, she is just a tool for marriage. If the two countries really go to war, it is only because the Jie Khan wants to start this war. It doesn't really matter whether there is this princess or not. What's more... losing a princess just because of an unnecessary reason is not worth it no matter how you look at it, isn't it?"

Rong Zhen nodded, agreeing with his analysis.

After Lu Zheng said this, his thoughts became clearer: "Su Yiyun's behavior is inconsistent and difficult to understand. But what if it was someone else? This can explain that she may not want to frame someone, but just happened to drop a pearl button. Her fundamental purpose is to kill Dai'er, which can explain why this plan of framing someone is full of loopholes. In the final analysis, it's just that we have a preconceived idea." It was precisely because of this thought that the guards of the Heavenly Prison were not strict, which killed Dai'er.

"You said that Su Yiyun is also a dual soul?"

"It is very possible, but her situation is different from Ge Hui's. She should be able to know the existence of another identity, or in other words, the boundary between her two personalities is not clear. That's why I think her other personality is Su Yidai'er." Lu Zheng paused, "They are sisters, but their destinies are completely different. Su Yiyuge is jealous of her sister, and this jealousy makes her wish she were her sister, so she began to imitate her sister. Perhaps because of too much pressure, she gradually developed a second personality, or soul, in this imitation."

At this moment, the guards sent to the guest house rushed over and searched Su Yiyuge's room and found women's clothes, rouge, powder, jewelry, etc., and the most important thing was a pair of women's shoes that matched the shoe prints on the back of Lan Jingyi.

Su Yiyun usually wears men's clothes and men's shoes when she goes out, and her voice is also low, which is why they never thought that Su Yiyun was actually a woman.

What they found completely verified Lu Zheng's initial inference, and his second inference was on Su Yida'er.

Lu Zheng happened to find Su Yida'er's sachet. He touched it, then opened the sachet and found a pearl button inside. He put the button in front of Rong Zhen.

Lu Zheng shook his head and sighed.

They found a piece of clothing with a pearl button missing in Su Yida'er's room, but they never considered that Su Yida'er took the button off herself. Perhaps Su Yidaer had already discovered her sister's behavior. She found Su Yiyun Ge coming back late at night and found that a button had fallen off Yun Ge's clothes. In order to protect her sister, she took off the button from one of her clothes and put it in her sachet.

Su Yiyun Ge's eyes kept changing, sometimes painful, sometimes proud, sometimes hateful, and sometimes confused. Rong Zhen just watched quietly at the side.

"She knows it's me..." Su Yiyun Ge said in a low voice, seemingly with deep hatred, but tears kept flowing down, "She knew it a long time ago..."

At this time, many details that she deliberately ignored slowly appeared in her mind.

When she was young, she had a very good relationship with her younger sister. She had been practicing martial arts since she was young, and her body was always covered with bruises. Her mother did not dare to let others discover her secret, so she applied medicine to her every time. At that time, Dai'er hid at the door and looked inside timidly. She waited until her mother left, then she ran in and carefully blew on her injured parts.

Later, they grew up, her studies became more and more demanding, and her younger sister was detained in the palace. However, with a doted mother and brother, her life was extremely comfortable, and her temper became more and more domineering, so the two gradually became estranged. Su Yiyun Ge was jealous of her younger sister, and how could Su Yi Dai'er not be jealous of her elder sister? It's

just that Su Yiyunge, who looks gentle and humble on the outside, is cruel and heartless on the inside, while Su Yidaer, who looks arrogant and domineering on the outside, still retains a little warmth between sisters.

Rong Zhen didn't say anything more, Su Yiyunge's regretful expression was the best answer.

However, at this moment, a guard came galloping on horseback, and after Rong Zhen heard the news he brought, his face immediately became serious. Nie Zhishu waved away the person who bandaged him, walked over and asked, "Master, what happened?"

Rong Zhen said in a deep voice, "Su Yiwuya tore up the agreement and has deployed troops to the border city. I'm afraid Su Dai's letter for help has reached my brother's desk."

Nie Zhishu was shocked: "We didn't receive any news in advance!" Rong Zhen had established a complete intelligence network in the northern border. It was impossible for him to receive the news only when Su Yiwuya's troops were at the gate of the city.

Rong Zhen shook his head, his face was extremely ugly: "I'm afraid something has happened to the Night Owls in the Northern Frontier."

The Night Owls were originally an intelligence system established by Rong Zhen to deal with the Jie people. Later, when the two countries temporarily negotiated peace, Rong Zhen dispersed most of the Night Owls to various places, leaving only a part in the Northern Frontier. The identities of these Night Owls were known to him and Xin Gangyi, the branch leader in charge of the Night Owls in the Northern Frontier. He was trained by Rong Zhen. If Rong Zhen didn't trust him, he would not have given him the responsibility of the Night Owls in the Northern Frontier, but he didn't know when he betrayed.

Nie Zhishu glanced at Su Yiyun Ge and said in a low voice: "Can we use her as a bargaining chip..."

"Her identity is revealed, and she will be abandoned to Su Yiwuya. Moreover, he values ​​profit over emotion. Even if Su Yiyun'ge's identity is not revealed, her value may not be as much as the benefits Su Yiwuya gets from this war. It is better to take her back for a thorough interrogation, and maybe we can find out something." After Rong Zhen finished the analysis, he felt a little tired. He should have noticed that something was wrong in the northern border. He should have thought of it when Su Yidaer was pestering him.

Rong Zhen knew that after so many years of recuperation, Daxia and the Jie people would definitely have a big war, but he did not expect that this war would come so early and so quickly. He wanted to use the death of the old Chanyu and the fight for the throne among several princes as an opportunity to weaken the power of the Jie people, but he didn't expect to be outmaneuvered and caught off guard.

In the final analysis, it was just that they trusted Night Owl's intelligence capabilities too much for so many years. Without Night Owl, I'm afraid Su Dai would find it difficult to adapt, otherwise he wouldn't have sent a letter for help.

"Su Dai is a veteran and has been guarding the Northern Frontier for many years. He can still hold on for a while." Rong Zhen said, "Now, we have to wait for the imperial edict from my brother."

As a prince who has handed back his military power, he can only return to the Northern Frontier again with the emperor's edict. But this is almost beyond doubt. Looking at the entire Daxia, no one would be more suitable than him. It's just that when this edict can be issued depends on what the emperor thinks.

Rong Zhen always liked to act according to the situation. He was flattered by people in the capital, and he knew it. However, he used the trick to make friends with many people in the name of a playboy. When the war between Daxia and Jie people broke out at the age of 15, he pretended to be provoked and went to the Northern Frontier. Although there were many dangers, he was safe in the end.

Rong Zhen had been in the Northern Frontier for many years and knew that there would be a war between the two countries. His plan was arranged early. On the surface, he seemed to let go of the Northern Frontier Army, but the Northern Frontier Army was still firmly controlled by him. When the war between the two countries broke out, he would naturally be released back to the Northern Frontier. In order to compensate him, Emperor Yongning would naturally let him participate in political affairs. Otherwise, how could he have established Night Owl? Otherwise, how could he have started a killing spree in Yangzhou? He had been prepared and would naturally have placed the right person in. Later, he gave up the Three Divisions Review for this reason. His goal was achieved and he no longer needed to attract hatred.

Among them, Emperor Yongning might realize that he was the one who took the blame, but he had to swallow the bitter water. In order to get rid of him, the subsequent battles were naturally the best choice. Even if Emperor Yongning was on guard, it didn't matter. He had his own means to deal with it. Unfortunately, he was blinded by geese while hunting geese all day. He trusted Night Owl too much. As a result, the game that was originally sure to win had variables, and he changed from active to passive.

Rong Zhen slowly lowered his eyes.

It doesn't matter. He has faced dangerous situations before. Even if he loses the initiative, he will win in the end.