Princess Fuqing covered her mouth, her face as pale as snow.

The empress's performance was even worse than Princess Fuqing's. After hearing Yu Jin's words, she staggered and was about to fall. She was supported by a palace maid beside her and did not fall.

Everyone's faces were colorful.

If the cup of poisoned wine was Princess Fuqing's, doesn't it mean that the murderer originally wanted to poison Princess Fuqing, and the Fifteenth Princess became the scapegoat?

The woman in palace dress who had been holding the body of the Fifteenth Princess and trying to suppress her tears burst into tears upon hearing this.

"Shut up and listen to what the seventh brother has to say!" Emperor Jingming shouted, and everyone in the audience fell silent immediately.

Yu Jin turned his gaze towards Princess Fuqing: "Whether you take it seriously or not, just ask Princess Fuqing and you'll know. Fuqing, do you have any impression of the Fifteenth Princess drinking?"

Princess Fuqing tried her best to remain calm, and after a moment's recollection, she said, "When my fifteenth sister was talking to me, she was drinking the plum wine that the palace maid had brought to her."

"So do you remember her taking your wine glass?"

Princess Fuqing shook her head: "I turned around first, and the fifteenth sister followed me, so I didn't notice how the wine glass in the fifteenth sister's hand came from."

"I have another question." Yu Jin's tone became increasingly cold, but it aroused the concerns of everyone present.

"Seventh brother, please speak."

"Thirteenth sister, why did you throw away the wine in front of you and ask the palace maid for Baihua Yang?"

"Prince Yan, what do you mean?" the Queen asked with a frosty face.

Emperor Jingming waved his hands and said, "Queen, please listen to what Old Seven has to say."

The queen pursed her lips and stared at Yu Jin closely.

Yu Jin remained calm, not at all affected by the Queen's attitude: "Don't worry, Queen Mother. Since we are investigating a case, we have to ask these questions regardless of the other party's identity. I don't think Princess Fuqing would want the Fifteenth Princess to die in obscurity."

Without waiting for the Queen to speak, Princess Fuqing said, "Seventh Brother, you are right. We cannot let Fifteenth Sister go without knowing the reason."

As she spoke, she looked at Jiang Si, her eyes sad and gentle: "The reason why I didn't use the wine glass in front of me, but took Baihua Yang, is that I felt that using fruit wine to toast Sister Qi was not sincere enough, so I gave up the plum wine and took Baihua Yang..."

As soon as Princess Fuqing said this, the emperor and empress's eyes suddenly changed when they looked at Jiang Si.

There was indescribable gratitude in the Queen's eyes. If the occasion had not been wrong, she would have probably pulled Jiang Si aside to express her gratitude.

Thank God, if it weren’t for Princess Yan, Fuqing would have been in trouble today!

Emperor Jingming was even more fond of Jiang Si.

Although both the palm and the back of the hand are made of flesh, there is not as much flesh on the back as on the palm. In his heart, Princess Fuqing certainly weighs more.

The seventh daughter-in-law saved Fuqing’s life!

His only legitimate princess had been blind for so many years. If something went wrong because he insisted on holding a palace banquet, he would probably have to live with guilt for the rest of his life.

"Fifteenth sister...died for me?" Princess Fuqing murmured.

Yu Jian's tone softened, "It's not the princess' fault. You and the Fifteenth Princess are both victims, and the murderer is the one who is insane."

Princess Fuqing's eyes were filled with tears, and she said with a determined look: "Seventh Brother, please find the murderer!"

Seeing Yu Jin's calm demeanor, Emperor Jingming nodded secretly and asked, "Seventh Brother, do you have any other ideas?"

"Father, I think the most urgent thing is to find the maid who served the cup of poisoned wine."

Emperor Jingming looked towards the empress.

The Queen immediately asked the female official in charge of today's palace banquet.

Every detail of such a banquet must be taken into consideration, and which palace maids will be responsible for which table is arranged in advance.

The female official was a steady and experienced person. After a moment's thought, she immediately pointed out the six palace maids in charge of the princesses' table.

Seeing six palace maids kneeling in a row, Yu Jin asked, "Who served the wine to Princess Fuqing?"

The six palace maids trembled like chaff in a sieve, and no one dared to say a word.

The Queen said angrily: "If no one speaks up, drag everyone out and give them a cup of poisoned wine!"

Her Fuqing was almost killed!

Why is it that Fuqing, who is so well-behaved and sensible, has suffered misfortune since childhood, and now that he has finally recovered, he has almost lost his life...

Thinking of this, the queen's heart was filled with hatred and anger.

Still none of the six palace maids spoke.

Yu Jin curled the corners of his lips upon seeing this.

It's no surprise that no one dared to stand up.

Regardless of whether the palace maid was the one who poisoned Princess Fuqing, since she served the cup of poisoned wine, she could not escape the death penalty.

When it comes to death, even if there is no possibility of avoiding it, the later the better.

"It doesn't matter if you don't say it. Now start from the person on the far left and tell the names of the people before and after you when the fruit wine was presented." Yu Jin looked down at the six palace maids and said indifferently, "Drag anyone who hesitates out immediately!"

The maidservant on the far left trembled and said the names of the maids before and after her. Then it was the fourth person's turn. After saying the name of the maid who came after her, she was suddenly stuck.

"I am the servant in front... in front..."

"Tell me, who is in front of you?" Yu Jin asked coldly.

The maid finally broke down and admitted crying: "There was no one in front of me. I was the one who presented the plum wine to Princess Fuqing..."

She knew that a disaster was imminent, and she collapsed to the ground after she finished speaking.

The queen stared at the maid, her hands shaking: "You little maid, why are you trying to harm the princess?"

"I didn't do that! Your Majesty, I would never dare to harm the princess even if you kill me..." The palace maid explained in a hoarse voice.

The queen frowned and stopped talking, looking silently at Yu Jin.

Even if it was really the palace maid who poisoned the princess, she was definitely not the real murderer. The queen understood this very well.

Obviously, Yu Jin's performance just now gave her some confidence in whether Prince Yan could find the murderer.

At this time, a doctor suddenly spoke up: "Your Majesty, we have found out what poison the Fifteenth Princess was poisoned by."

Emperor Jingming immediately asked, "What kind of poison?"

"The poison that the fifteenth princess was poisoned with was the herb of intestinal rupture. The roots and leaves of this herb are ground into powder and are highly toxic. A small amount of it can cause a person to die of poisoning in a very short time..."

As the imperial physician spoke, everyone's expressions changed again and again.

"All of you stand up." Yu Jin walked around the six palace maids and then asked the female official, "The palace maids who are responsible for serving at today's banquet must be carefully examined, right?"

The female official said, "That's right. These palace maids have the same hairstyle and dress. They need to bathe and change clothes before sitting down. Everything they wear from head to toe has been inspected, and they are not allowed to wear sachets or other items."

"So, there is no possibility that they have stolen the belt?"

The female official nodded affirmatively: "Absolutely impossible."

"Then the poison was either planted by someone when the maid was not paying attention, or someone waited until the maid entered the palace and then gave the poison to her. This means that the murderer must be in the hall!" Yu Jin said firmly.

Princess Rongyang sneered: "Prince Yan keeps saying that the murderer wants to kill Princess Fuqing. If the murderer is someone else, how can we be sure that the poisoned wine will be sent to Princess Fuqing?"

Yu Jin smiled and said, "It's very simple. Since the palace maids serving wine are divided into teams and are responsible for serving different tables, the murderer can target this team of palace maids. And at the table of princesses, Princess Fuqing is the most respected, so the first glass of wine should naturally be served to Princess Fuqing. In this way, the murderer can be sure that the poisoned wine will be delivered to Princess Fuqing."

Princess Rongyang was speechless.