Under the watchful eyes of the crowd, Jiang Si stretched out his hand without changing his expression, with a white jade wine glass in his palm.

The white jade wine cup had a chip and several cracks.

"This is the wine glass used by the Fifteenth Princess. It fell to the ground just now when the Fifteenth Princess fell to the ground, and my daughter-in-law picked it up."

Emperor Jingming immediately said to several imperial doctors: "Check the remaining wine in the cup!"

When they heard that the wine might be poisoned, everyone was shocked and their faces turned pale.

They were toasting each other just now and they all drank.

So someone murmured, "It can't be that the wine is poisoned. So many people drank it, why did the fifteenth princess get into trouble?"

Emperor Jingming listened to these discussions and waited for the imperial physician's conclusion with a sullen face.

Several imperial doctors inspected the wine glass used by the Fifteenth Princess for a while. In the tense atmosphere, one of them said, "Your Majesty, the wine residue in the glass did test positive for poison. We need to further examine what kind of poison it is..."

Emperor Jingming closed his eyes.

It doesn’t matter what kind of poison it is. What matters is that someone could secretly poison the princess at a banquet like this in the palace!

If he could poison the princess today, wouldn't he be able to poison the empress, him, and the queen mother tomorrow?

Thinking of this, Emperor Jingming shuddered.

Emperor Jingming had many daughters. Although he couldn't even match their names on weekdays, he felt heavy and gloomy when he saw his lively daughter turned into a cold corpse in an instant. He suddenly opened his eyes and slapped Zhu Zhu: "Check it carefully for me!"

The queen felt equally bad.

She had organized this palace banquet to celebrate the recovery of Fu Qing's eyesight, but such a terrible thing happened at such a banquet. This was more than just an embarrassing issue for her.

"Your Majesty, if this matter gets out of hand, it may damage the reputation of the royal family." The Queen reminded softly.

Emperor Jingming calmed down.

The fifteenth princess died of poisoning, so there must be someone who poisoned her.

The person who poisoned the palace might be in this palace, and the palace is filled with concubines, princesses, and royal relatives...

Emperor Jingming became more and more angry and glanced at Jiang Si with stern eyes.

It can be said that the last person the Fifteenth Princess came into contact with was the Princess of Yan.

At this time, a clear voice sounded: "Father, I have been training in the Ministry of Justice for several months, and I have also been investigating cases with Master Zhen for a while. I have learned a little from Master Zhen. Why don't I try to find the murderer who killed the fifteenth princess today?"

Everyone's eyes immediately turned to the person who spoke, and everyone had a strange look on their face.

When encountering such a thing, people would try their best to avoid it. Is the King of Yan stupid to take the initiative to deal with it?

But there were also those who reacted quickly and understood what was going on: the Princess of Yan was the last person to come into contact with the Fifteenth Princess. If they wanted to find out who poisoned the Fifteenth Princess, the Princess of Yan would be the first to be investigated. The Prince of Yan did this to protect the Princess of Yan...

People who think it through can't help but sigh at Jiang's good fortune.

Prince Yan really holds Princess Yan at the top of his heart.

Although beauty fades and love wanes, the current affection does not represent what it will be like in the future, but no matter what, it is better than never being cared for.

The Crown Princess was one of those who felt this way.

She glanced at the prince lightly, and saw only undisguised excitement in his eyes.

That's a look of excitement.

The Crown Princess' heart sank and she twitched the corners of her lips in self-mockery.

The Fifteenth Princess died tragically. No matter how weak the relationship between the Crown Prince and the Fifteenth Princess was, it should not be so cold.

Even if such a person inherits the throne, will he treat the people of the Great Zhou well, let alone his first wife?

The Crown Princess lowered her eyes to hide the loneliness in them.

Emperor Jingming stared at Yu Jin for a moment and asked, "Seventh Brother, do you really want to try it?"

"Although this is the first time I've met the Fifteenth Princess, we are siblings after all, and I want to do my best to help her. Of course, my ability is limited, so if I can't find any clues, I hope you can forgive me, father."

When the prince saw Yu Jin step forward on his own initiative, he was secretly hoping that he would be in trouble. He curled his lips when he heard this.

The seventh brother is such a smooth talker. He says all the nice things and does all the good things, but in the end he doesn't have to take any responsibility. Does he think his father is a fool?

After hearing this, Emperor Jingming immediately had a much better impression of Yu Jin.

Among the royal family, most people are prudent and try to protect themselves when faced with difficulties, but few have the courage to take responsibility. The seventh brother grew up outside the palace, but he values ​​brotherhood very much, which is truly rare.

"Then you can give it a try. If it doesn't work, don't try to force it."

Yu Zhenchong clasped his fists towards Emperor Jingming and said, "Thank you, father."

Prince: ? ?

"Is this the position of the fifteenth princess?" Yu Jin pointed to a place.

Only then did everyone realize that the Prince of Yan was not at their table, but was standing next to the princesses' wine table.

Because of the chaos just now, many princesses rushed over to see what was going on, but some princesses who did not want to get involved stayed where they were.

As Yu Jin asked this question, everyone's eyes were focused there.

One of the princesses who stayed behind suppressed her nervousness and said softly, "Seventh brother is not referring to the fifteenth sister's seat, but the thirteenth sister's seat."

Yu Jin was slightly startled and looked at Princess Fuqing who was being held tightly by the empress.

Princess Fuqing broke free from the Queen's hand, took a few steps forward, and nodded despite her grief: "Yes, that's my seat."

Yu Jin looked a little strange, and tapped the table with his index finger: "I just looked, there are twelve people at this table, and only this seat doesn't have a wine glass in front of it, so I thought this is the seat for the fifteenth princess."

As soon as he said this, Princess Fuqing's face suddenly changed and she cried out, "No!"

Everyone immediately looked at Princess Fuqing.

Princess Fuqing's face turned pale as paper, and she murmured, "When I went to toast Sister-in-law Seven just now, I took a glass of Baihua Yang directly from the palace maid, and did not take the wine glass in front of me, so there must be no wine glass in front of my seat..."

At this point, Princess Fuqing seemed to remember something. She rushed over, held onto the table, and stared at that place with a pale face.

There was an empty wine glass on the table with some red liquid still in it and traces of lip balm on the rim.

Yu Jin suddenly had an idea and asked, "Is this the seat for the fifteenth princess?"

Princess Fuqing nodded.

Yu Jin gently stroked his chin, and in the silence where one could hear a pin drop, he suddenly said, "I understand!"

"Seventh Brother, what do you understand?" Emperor Jingming asked anxiously.

Yu Jin picked up the empty wine glass, looked at the faint red mark left on the rim, and asked Princess Fuqing: "When the princess went to toast my wife, did the fifteenth princess immediately follow you?"

"Well, my fifteenth sister was very happy for me, so she went to toast my seventh sister-in-law with me."

Yu Jian sighed and said, "Then the matter is clear. The Fifteenth Princess wanted to go with Princess Fuqing to toast, and she just finished the wine in her glass. Princess Fuqing took the Baihua Yang from the palace maid and did not touch the wine in front of her, so the Fifteenth Princess took the glass of wine that Princess Fuqing had not touched..."

"What do you mean?" the queen asked sharply.

Yu Jin looked at the empress: "What this means is that the cup of poisoned wine originally belonged to Princess Fuqing."