On her wedding night, she went into exile with her pharmacy arsenal

The gentleman did not hide the truth from Yan Ruyu and answered truthfully: "It is a book called "Water Flow and Governance", which is a very old book. Many bookstores don't sell it now."

Yan Ruyu pretended to be puzzled: "If that's the case, why did he suddenly borrow this book? What's the reason? Something happened at home, how can he still have the mind to read a book?"

The gentleman sighed and said, "It's all about the pity of parents. He said that his eldest son mentioned this book to him before he died, but he didn't take it seriously at that time. Now that he thinks of it, his child has passed away. He must be very sad."

"Maybe he wanted to read the books his child liked to ease his sadness."

"I see," Yan Ruyu suddenly realized, "Then what is this book about? From the title, it seems to be about the flow of water."

"Yes, but I can't trace who wrote it. I only flipped through a few pages occasionally. It talks about the appearance of the river, what it was like in the past, how it was managed, etc. There are a lot of maps drawn on it."

Yan Ruyu's mind moved slightly: "Map?"

"Yes, but it's not a current map, it's from a long time ago," the gentleman said with a little shame, "because I'm not very interested in it, and it's not the current river topography, so I didn't look at it carefully."

"However, I had a student before who liked to travel. When he had nothing to do, he loved to walk around. When he graduated, he asked for the book. Therefore, Brother Wu was unable to borrow it today."

Yan Ruyu knew what was going on, so she said a few more polite words and left with the silver ingot.

As soon as he arrived beside the carriage, Yinding immediately said, "Princess, I will take you back first, and then we will go to that village."

Jin Ding followed Old Man Wu, but he didn't know whether Old Man Wu would go out of the city to look for it immediately. Besides, he was slow, so it was better for Yin Ding to go first.

"Okay," Yan Ruyu said, "Remember to bring Zhao Yan with you."

"Yes."

When Yan Ruyu returned home, Song Ping brought a few brothers to express his gratitude.

"Thank you, Princess, for your generous reward!"

All five of them saluted in unison, observing the rules and being respectful.

"You worked hard and you deserve it," Yan Ruyu said, "Is it easy to use?"

Several people were delighted: "Replying to Princess, it is very easy to use, this knife is excellent!"

Song Ping bowed and said, "Princess, this knife is extremely sharp. To say it can cut iron like mud is an understatement. Who made it? How could someone have such good iron?"

"These knives were made by the prince's secret guards. Some of them are experts in this field. Therefore, they are different from those made by ordinary blacksmiths. As for the material, it is not just iron. It should have something else added to it."

It was the stone that Yan Ruyu gave to the secret guard. Just a little bit of it could make the knife incredibly sharp.

Song Ping and others' eyes were filled with smiles.

What an honor it is to be able to ask the prince's secret guards to forge weapons for you, and use special materials!

"Princess, please rest assured, we will do our best and will never slack off!"

Several of them were from underworld backgrounds, and they were not good at speaking nice words, so they secretly made up their minds to speak with actions.

They retreated, and Yan Ruyu returned to the house, but did not see the Tibetan fox.

"Linlang, have you seen Dahuang?"

Before Linlang could answer, the starling standing on the treetop replied: "Oh my, Dahuang Dahuang, fat and hairy, eyes narrowed, crazier than the sky, where are you going? You have to ask the abbot."

"Da Huang Da Huang, wilder than the sky, tut tut tut."

Yan Ruyu: "..."

Linlang laughed so hard that she fell backwards: "That's right, Da Huang went to find the abbot."

Yan Ruyu didn't go looking for him either. Just let her go wherever she wants to play.

I went back to my room and wrote down the news I got today. First, Mrs. Su had been to the door of the Wu family; second, Old Man Wu had borrowed a book called "Water Flow and Governance" from the gentleman.

As soon as I finished writing, Beibei came to ask for a meeting.

"Master, the woman from the Su family took the carriage directly back to the mansion. She even stumbled at the gate on her way back. She looked very guilty and very suspicious."

"In addition, I also heard that they have a shopping boy who goes out to buy things every day. I thought I would get some information from him first."

"However, I did not alert the enemy and came back to report to the master first."

Yan Ruyu nodded with satisfaction: "Okay, let's observe today first, and call the bee whistle to go together tomorrow."

"Yes."

……

Old man Wu returned home and paced back and forth in his study, having thrown aside the five taels of silver he had borrowed.

He pushed the teapot and teacups on the table down and kicked them a few times angrily.

How come things turned out like this?

No, he had to find an excuse to leave the city. But his house was in such a state now, and there were yamen runners guarding the door. What excuse could he make that would make the yamen runners think it was reasonable for him to leave the city at this time?

He turned his head and saw the candles on the table - yes, he said that his family members died unjustly, and he wanted to find the monks in the temple to chant some sutras.

Yes, just say that.

He calmed himself down and was about to go out when he heard some noise at the rear window.

Although it was broad daylight, his house was now considered a haunted house, and with so many people dead, he couldn't help feeling guilty.

"Who?"

No one answered.

Just as he was about to look, the window suddenly moved and a shadow came in from outside, dressed in black and wearing a mask.

Old Man Wu was startled. "You... who are you? What do you want to do? I'm warning you, there are bailiffs outside. If I shout..."

"If I were you, I wouldn't shout," the man in black said in a dull voice, "Don't you want to know why your family members died?"

Old Man Wu swallowed his saliva: "What do you mean?"

The man in black threw the knife in front of him: "Take a look."

Old Man Wu looked down at the knife at his feet. It was narrow, straight, and slightly shorter, unlike his usual knives.

"What kind of knife is this?"

"Your family members died under this kind of knife. This was a group of soldiers under the Zhennan King's command when he was in charge of Shencheng. They were responsible for missions such as vanguard, ambushes, and raids, and they used this kind of knife."

Old Man Wu didn’t understand what the vanguard ambush meant, but he understood the last sentence.

"You mean, the King of Zhennan sent people to kill my whole family?" Old Man Wu's eyes widened. "Why?"

"Because your wife offended him and wanted to humiliate his mother, he is a killing god. Wouldn't it be easy for him to kill your whole family?"

Old Man Wu fell into a chair, breathing rapidly.

"Don't you want to avenge your family?" the man in black asked, "Are you willing to let them die like this?"

Old Man Wu's eyes were red. "What can I do if I am unwilling? Why should I fight him?"

"You are a scholar, smarter than your wife, and you also have a good reputation. Don't you have any solution? A scholar has plenty of ways to deal with a military commander, right?"

The man in black chuckled, "Your son's lawsuit is not over yet, and he needs to pay back the money. Do you have the money?"

Old man Wu choked and said, indeed not.

The man in black raised his hand, and with a crisp "pa" sound, he threw a large bag of silver onto the table next to him.

"This is a small portion. The money in it is enough to pay off your debts and also have money for the lawsuit."

"A lawsuit?"