Emperor Jingming glanced at Pan Hai.

Pan Hai retreated, closed the door and stood guard outside.

Yu Jin took it seriously in his heart, but his expression didn't change much.

After a moment of silence, Emperor Jingming spoke: "Do you still remember that Concubine Chen poisoned the Fifteenth Princess?"

Yu Jin nodded.

Who can forget such a thing? Your Majesty's words were not very nice.

"I suspect there is someone behind Miss Chen."

Yu Jin was silent for a moment, then said, "Father, your majesty is wise."

Emperor Jingming glanced at Yu Jian and said, "Well, I didn't call you here to flatter me. I have something to tell you."

The main thing is that this flattery is too meaningless. The four words "dry" are simply too boring to say anything.

"Father, please tell me."

Emperor Jingming tapped the white jade paper on the table with his fingers and lowered his voice: "I want you to try to find this person."

Yu Jin was stunned for a moment, and then showed his joy without showing it.

He and Asi were following the clue of Wu Miao's ancestors and were worried that they couldn't go deep into the palace to investigate. Unexpectedly, someone gave him a pillow when he was dozing off.

Seeing that Yu Jin did not express his opinion, Emperor Jingming asked, "Do you feel embarrassed?"

Yu Jin withdrew his thoughts and a look of hesitation appeared on his face.

It's certainly not difficult for him, but it's right to let my father feel that he is in trouble.

When Emperor Jingming saw this, he sighed and said, "I know this matter is not easy to handle, and we can only investigate it secretly, not publicly, so don't feel pressured. It would be best if you can find clues, but I won't blame you if you can't."

It is indeed difficult for the Seventh Brother to speak of it. As it concerns his face, the matter of Concubine Yang cannot be revealed to him. He can only start the investigation from Concubine Chen, which greatly increases the difficulty.

Let's give it a try. If we can't find the cause, we'll just treat it as exercise.

As for why he wanted to train his son's ability to solve cases, Emperor Jingming was not prepared to think about it in detail.

With Emperor Jingming's words, Yu Jin immediately expressed his opinion: "Then I will give it a try, but my ability is limited and I am afraid that I will disappoint you."

"Don't think too much, just investigate, but don't make the people in the palace panic. If you want to investigate, Pan Hai will cooperate with you."

Emperor Jingming thought there was no need to be disappointed. He would be overjoyed if he could find that person.

Well, it is said that there is a promise that what is expected is likely to come true.

Emperor Jingming then said silently in his heart: If the seventh brother can find that person, he will personally name and reward the seventh brother's child after it is born.

"There's nothing else to do. Go ahead."

"My son, take your leave."

Walking out of Yu's study, Yu Jin nodded slightly to Pan Hai.

Pan Hai understood and followed immediately.

Seeing that no one was around, Yu Jin whispered, "Eunuch Pan, you know what my father told me to do."

Pan Hai nodded.

"I want a list of people who entered the palace ten to sixteen years ago and are still serving in the palace."

The small shop on Xishi Street was opened fifteen years ago. According to the clues obtained from old woman Wu Miao, the man should have entered the palace fifteen years ago, but Yu Jin could not limit the scope to fifteen years ago.

It doesn't make sense to single out one year.

"It's on the list. Please follow me, Your Majesty." Pan Hai led Yu Jin and turned in another direction and walked inside.

He had already thought of this, starting with the people who entered the palace more than ten years ago, but for the time being, no abnormal people jumped into his sight.

Yu Jin followed Pan Hai into a room where there were many books piled on the bookshelves and desks.

Pan Hai walked right past all of this, opened a secret compartment, and took out a booklet.

Although it was necessary to check the list of people who entered the palace more than ten years ago, there were only a few people who survived to the present day. Pan Hai took great pains to sort through it and compiled this booklet.

Taking a look at the still-fresh cover, Yu Jin asked, "Was this compiled by Eunuch Pan?"

Pan Hai nodded: "Yes, the names of those who entered the palace to serve from ten to eighteen years ago and remain here are all on it."

After a pause, Pan Hai explained, "Eighteen years ago was the year when Concubine Chen entered the palace, and ten years ago was the year when Princess Fuqing became blind..."

"Eunuch Pan is very thoughtful." Yu Jin sighed as he held the booklet, which was neither too thin nor too thick.

Although it is just a booklet, I don't know how much time it will take to organize it.

"It's my duty." Pan Hai said politely, staring at the booklet with a bit of regret.

After all the effort, it was all in vain in the end.

Slender fingers turned to the first page of the booklet.

Pan Hai organized it very carefully. The booklet recorded clearly the year a person entered the palace, where he or she first served, when he or she was transferred to where, when he or she was transferred to the next place, and where he or she is now.

Even the people he was familiar with, friends with, or enemies with were recorded in brief or detailed ways.

In some places, circles were drawn with a red pen.

Pan Hai explained: "The person who drew the circle with red ink felt that there was something suspicious at the time, but after a thorough investigation, he did not find anything valuable."

Yu Jin felt more and more that Pan Hai was very meticulous in his work, but he still couldn't find the man, which showed how well the man was hiding.

After slowly flipping through it, Yu Jin closed the booklet and handed it to Pan Hai.

Pan Hai was stunned: "Master, have you finished reading it?"

"I've finished reading it. Can I take this booklet home and read it again?"

After some hesitation, Pan Hai refused: "This is against the rules..."

Although the Emperor ordered Prince Yan to participate, if this booklet concerning the palace's private matters were taken out of the palace and used by someone with ulterior motives, it would probably cause a lot of trouble.

"Your Highness can watch from here."

Yu Jin smiled and said, "It's against the rules for me to stay in the palace for too long."

It was when the third and fourth brothers were fighting each other to the point of bloodshed, and he stayed in the palace for most of the day. Who knows what those crazy dogs would think.

For Yu Jin, the most important thing right now is that Jiang Si can give birth to a child safely, and he doesn't want to get involved in any trouble.

"That's fine. I've almost written it down. I'll go back and sort it out and look for clues."

Pan Hai was stunned, and asked in a strange tone: "Did you write it all down?"

Yu Jinzhen said: "It's almost the same."

Pan Hai twitched the corners of his mouth.

Hehehe, the King of Yan must be teasing him, right?

It would be fine if the stories in this book could be retold, but how could you remember all the names of people just by flipping through it once?

He wanted to question, but his reason stopped him from asking.

After Yu Jin left the palace, Pan Hai returned to Yu's study to report.

"King Yan has returned?"

"Let's go back." Pan Hai couldn't help but tell Emperor Jingming what had just happened.

Emperor Jingming put the scroll aside and said in surprise: "You mean, the seventh son has a photographic memory?"

Pan Hai hurriedly said, "The King of Yan said so."

He doesn't want to take the blame. What if the King of Yan is bragging?

Emperor Jingming's gloomy mood for many days suddenly relaxed, and he smiled for the first time: "This old man, he really knows how to make people happy."

Based on his many years of experience reading storybooks, he knew that having a photographic memory was something only gifted child prodigies could have.

Wait, he is the emperor, why can’t there be a child prodigy among so many sons of his?