Unexpectedly, he agreed without hesitation, changed her into eunuch's clothes, and secretly sent Qingshuang in.

No one noticed the trick, and when Gu Yunru came out, the sky was already turning pale.

"Ah Zhao, what happened to Qing Xing? Did she really lose half her life?"

Gu Yunru followed him in light steps, her face full of worry.

"You'd better take care of yourself. If you don't find evidence for yourself, you will be the one sent to the dungeon."

"I..." Gu Yunru didn't know how to refute. It was true that serving the emperor was like serving a tiger. This emperor looked gentle and sensible, but not as good as Rong Zhen.

Cheng Shaoyuan received the order and came to the palace. He first went to the imperial kitchen to ask other palace servants whether they saw Gu Yunru poisoning the cake with their own eyes. Since no one saw it, it was still unclear whether Gu Yunru had poisoned the cake.

"Your Majesty?"

Cheng Shaoyuan looked at Rong Zhen approaching from not far away and immediately stepped forward to greet him. Gu Yunru quickly lowered his hat. She didn't expect that Cheng Shaoyuan had also taken on this case. Now she was really embarrassed.

"Why are you here?" Rong Zhen asked Cheng Shaoyuan in front of him.

"In reply to your Highness. I received an order to come to the palace to investigate the case of the princess poisoning the cake, so I came to the imperial kitchen to see if anyone saw the princess poisoning the cake with their own eyes."

Gu Yunru was almost so angry that she vomited blood when she heard Cheng Shaoyuan's words. Of course, she did not poison him. Who would use such a despicable and mean method to poison him personally in front of the empress dowager?

Isn't this just pushing yourself into a fire pit? What is this? "Have you found it?" Rong Zhen asked slowly.

Gu Yunru couldn't help but sneer in her heart. It would be a miracle if they found it. There were only her and Qingxing guarding the cake, so there was no way a third person would have the chance to poison it.

"I haven't found it yet. Maybe I need to go find the princess and ask her what happened."

"No need, I'm here, just ask whatever you want to ask." Gu Yunru could no longer hold his temper. The sooner the truth came out, the better, so he took off his hat directly.

"Princess...you." Cheng Shaoyuan looked at her in shock. He didn't expect that she had disguised herself as a little eunuch. If she hadn't taken off her hat on her own initiative, he would not have recognized her.

"Stop talking about you and me. If you want to ask something, just ask it quickly. I don't want to be labeled a murderer." The worry on Gu Yunru's face was like a gloomy cloud.

"Please come this way." Cheng Shaoyuan didn't want to be seen by so many people, so they came to an abandoned temple where there were few palace servants cleaning.

"I have said everything I need to say. I personally collected the ingredients for this cake, and Qing Xing stayed by my side all the time. There is no chance that an outsider could have poisoned it. I wouldn't have brought arsenic and frost with me when I entered the palace, right?"

Gu Yunru explained until her lips were dry and she wanted to see whether the two were willing to believe her.

"But the poison was indeed in the cake. This is true. Is it possible?" Cheng Shaoyuan paused and added: "Was the princess poisoned early in the morning?"

"That's impossible. The imperial physician personally used a silver needle to test for arsenic and frost in the cake." Gu Yunru saw it all clearly at the scene and is still frightened. Thinking of Wei Ya spitting blood, he became terrified.

Rong Zhen looked thoughtful the whole time. Cheng Shaoyuan observed that His Royal Highness Prince Zhao was not blind, otherwise he would not have been able to find a seat to sit down.

"Your Highness, what do you think about this matter?" Cheng Shaoyuan wanted to hear his opinion, but Gu Yunru interrupted him with a ruthless look on her face.

"How can he see? He is blind. Can he see?"

“…”

Gu Yunru was as anxious as an ant on a hot pan. The more chaotic the situation was, the harder it was to find clues.

"Forget it. We have to investigate this matter from the beginning. If someone really did it in the arsenic and frost, we must find the time gap when the crime was committed. When did they put the poison in?"

"The princess's analysis makes sense. I will have people pay attention to whether the things poured into the food barrels these days contain arsenic or frost. If there is, we can follow the clues to find the person who has the arsenic or frost."

Gu Yunru waved her hands with a serious expression and shook her head. "This person has arsenic and frost. It is definitely not something he prepared recently. It is very likely that he has been preparing for a long time. And this person is elusive and will not easily leave any handle."

"And this man has more than one life on his hands." These words came out of Rong Zhen's mouth. Gu Yunru was quite shocked when she heard them. She was just about to say this next, but he spoke first.

"That's great. You're better than me." Gu Yunru gave him a thumbs up.

At this time, anxious footsteps were heard outside. Gu Yunru quickly put on the eunuch's hat and pulled the brim down. It turned out to be someone from the Ministry of Justice. Seeing Lord Cheng here, he immediately stepped forward and saluted, and then saluted Rong Zhen.

"Okay, stop being polite and tell me what clues you found."

Cheng Shaoyuan's expression suddenly became serious, with a firm look between his brows.

"It's like this. We have found out in the past few days that Wei Ya is close to Jun Guiren."

"Noble Lady?" Cheng Shaoyuan didn't react, and the man reminded him, "She is the princess's sister."

This work is organized and uploaded by Liujiu Book Bar~~

"I see. Continue."

"The maids around Princess Weiya can all testify. The noble lady Jun has a good relationship with her and often gives her pearl hairpins and plants."

"Anything else?"

"Not for now. Those people speak the frontier language, which I really can't understand."

"Forget it, you keep looking until you find evidence that can prove the princess' innocence."

"yes."

After the people walked away, Gu Yunru breathed a sigh of relief and patted his chest.

"My Lord, Princess, I have other things to do so I will leave now. Princess, don't worry, I will definitely find evidence to prove your innocence."

Cheng Shaoyuan said this to her with great certainty, with deep love in his eyes.

"kindness."

Gu Yunru and Rong Zhen left. Seeing that palace maids kept greeting him, he had to hold the brim of his hat tightly, for fear that others would notice.

"I say, why don't we go to Viya's palace and take a look?"

Gu Yunru could only follow him closely during the day, and at night she would switch with Qingshuang and return to the yard to be monitored.

"Is it appropriate for a grown man like me? Besides, my brother didn't ask me to investigate the case just to avoid favoring you."

"You can't say that. After all, I am your legal wife, carried into the house by eight bearers in a sedan chair. If I die unjustly, you, as your husband, will have an unshirkable responsibility!"

While Gu Yunru was bickering with him, Rong Zhen shook his head helplessly. This woman was becoming more and more thick-skinned, and he couldn't really win the argument with her.