When Su Bei heard this, he also became serious, "What's wrong?"

"There was a problem with the South-to-North Water Diversion Project in Ping County. Gunpowder was used to open the river, but it caused an explosion, killing and injuring more than a hundred people." Chu Younan's expression was also quite solemn.

Su Bei also felt heavy-hearted, "How could so many people be killed or injured?"

"The urgent report says that it was caused by an overdose of gunpowder."

"How could this happen?" Su Bei was shocked. "The Ministry of Industry should know the dosage. Even if there was a mistake, there shouldn't be so many casualties!"

"I suspect..." Chu Younan looked into her eyes and said, "I suspect someone is secretly playing tricks on me."

Su Bei thought about it, narrowed his eyes and said, "Then let the gunpowder of those who secretly make trouble get damp and can't be detonated. Let them have diarrhea every day, make them fall down when walking, choke when eating, and choke when drinking water!"

Her words are golden. If there are any other conspiracies, they will definitely not be implemented.

Chu Younan breathed a sigh of relief, but his expression remained solemn: "Ping County suffered too many casualties. I want to send an imperial envoy to appease the people. Do you have a suitable candidate?"

"King Zunyi." Su Bei answered without thinking.

This candidate was actually something Chu Younan had thought of in advance. Su Xiujie was one of his own and would definitely not be corrupt. Besides, he was proficient in medicine and could help treat the injured, which no one else could do.

The only problem is that he doesn't know martial arts.

There must be someone behind this, who is bound to sabotage it. If some dark force is used, Su Xiujie will definitely not be able to withstand it.

"I want to set up a department that specializes in recruiting people who are good at martial arts and will only obey my orders." Chu Younan said in a deep voice.

Su Bei thought about it, and the corners of his lips curled up, "Let's call them Jinyiwei!"

She seemed to have heard of this name before, it sounded very cool.

When Su Xiujie was ordered to leave Beijing, he brought with him more than 20 young men dressed in brocade clothes and equipped with Mo Dao, looking quite impressive.

Although there are only twenty people, they are all elites among the elites, carefully selected from the martial arts students of Baichuan Academy.

The last time they returned to Beijing, they also set up a Baichuan Academy in the capital. Like the one in Tongcheng, the Baichuan Academy in the capital is also divided into civil and military academies.

If the South-to-North Water Diversion Project did not require a large amount of money, they would have planned to open Baichuan Academies all over the country.

Su Xiujie's ostensible mission on this trip was to comfort the dead and injured people in Ping County, but secretly, he also had another mission, which was to track down the mastermind behind the incident.

This was a difficult task, a difficult task he had never taken on in his life.

He was extremely nervous throughout the journey, especially after experiencing several assassination attempts along the way, he almost wanted to back down.

But the emperor's order could not be disobeyed, so he dared not disobey.

His wife was still in the capital. If he ran away, he might implicate his family. Then he thought that the queen was his own sister. Even if he couldn't do it perfectly, he could at least keep his life.

Thinking of this, he mustered up his courage and went to Ping County.

After arriving in Ping County, Su Xiujie discovered that this mission was a hundred times easier than he had imagined.

Treating the wounded was a piece of cake for him. He had enough medicine. The Jinyiwei were all martial artists and were adept at dealing with minor injuries, so they became his capable assistants.

Moreover, when he arrived in Ping County, he was the highest imperial envoy. The local county magistrate treated him warmly and provided him with better food and accommodation than he had in the capital.

The only thing that troubled him was that the river digging in Ping County had not been resumed for a long time.

The remains have been dug up and the aftermath has been dealt with by him. Before, people were afraid to go to work because of the casualties, but when they saw that the court had given a large sum of money in compensation, they became eager to work again.

There was a long queue of people signing up, but the person in charge of recruiting had diarrhea for more than ten days and was completely exhausted.

What troubled him even more was that he could revive the dead, but he couldn't even cure a mere diarrhea!

All the available medicines have been used, and acupuncture and massage have also been used, but the recruit has not improved at all. He has diarrhea no matter what he eats, without stopping...

As he was hesitating, he heard Jinyiwei Commander Yuanfeng whisper in his ear, "Your Highness, before you left, didn't the Emperor tell you to pay special attention to those who have diarrhea, fall when walking, choke when eating, or choke when drinking water?"

Su Xiujie suddenly felt as if he had been enlightened.

The journey was so thrilling that he forgot all these words. When he saw the recruiter falling down while walking, he thought he was too weak. When he saw him choking when eating or drinking water, he thought he had a sore throat because of vomiting and diarrhea.

Although it was a bit mysterious, he remembered that his sister was an extraordinary person, so the person recruiting workers was very likely related to the bombing.

So he opened the trial overnight.

The recruiter couldn't even kneel down, so he just confessed without being tortured.

Leading to a series of people.

When King Zunyi came, those who recruited workers became recruiters. Before he came, those who recruited workers were almost like human traffickers. Not only did they recruit workers, they also bought people secretly. They would use one month's wages to buy a kidnapped person, and put the remaining months' wages into their own pockets.

Of course the accountant was in cahoots with him, and they split the profits 2:8.

However, the accountant did not mind the small amount of money. After all, his son was the foreman and there were other benefits to be gained.

The foreman's profit didn't come from the imperial court. Three months ago, someone came to negotiate with him, saying that if he could use the gunpowder from their workshop to blast the river, he would get a 30% kickback...

Originally, they had falsely reported the amount when they bought the gunpowder, and with this 30% kickback, he would be able to earn more money from the South-to-North Water Diversion Project than he could ever earn in his entire life...

Su Xiujie uncovered a series of corrupt officials and traced the cause back to the gunpowder workshop.

According to the law, these people not only embezzled money, but also killed dozens of lives, so they deserve to be executed.

After a series of criminals were brought to justice, Su Xiujie began to track down the gunpowder workshop, but it was not easy to investigate because the owner of the workshop had escaped.

However, Su Xiujie, who was so brave in investigating a case for the first time, was not discouraged. He thought of a way.

These criminals all had a common problem, which was diarrhea. Su Xiujie ordered his men to track down all the pharmacies to find out who had bought anti-diarrhea drugs.

Many people bought antidiarrhea drugs, but not many bought large quantities, and most of them were local residents. A few of them became the targets of investigation by the Jinyiwei.

Screening, tracking, investigation.

I searched all the way to the suburbs of Beijing.

The Imperial Guards found a suspicious woman.

The woman took her child to the pharmacy to buy anti-diarrhea medicine, saying that she was buying it for her husband. However, the Jinyiwei found out that the woman had moved in a few months ago and was raising her child alone, and her husband did not live at home.

I heard that this woman neither works in the fields nor does needlework, but she dresses up gorgeously all day long, and no one knows where she gets the money.

Su Xiujie interrogated the woman.

"What's your name?" He asked in a very serious manner, imitating the way in opera.

The woman gathered her hair and winked at him, "Sir, my surname is Yu, and my maiden name is Zihe..."

She was Yu Zihe, who was put into a pig cage by the Li family and rescued by Yun Rou.