After the Purple Cloud Sword Sect conducted an inventory of personnel, and compared with the roster, the names of the ten killed students have been determined.

All ten of them are students of the West Hall, and three of them were admitted to the West Hall on this search day. The remaining seven people had all entered the West Hall of the Purple Cloud Sword Sect in batches within five years to practice martial arts.

Students who practice martial arts have to live in the Purple Cloud Sword Sect for a long time, and they live in the student dormitory in the West Hall on weekdays. One room can accommodate 10 people, and it is a chase shop.

The 10 people who were killed this time did not live together, but lived in seven rooms.

Accompanied by the officials of the West Hall, Ye Feng and Lin Xiyao went from house to house to investigate, looking through the deceased's belongings and trying to find some clues.

Everything was normal in the first few rooms, and no clues were found, and everyone came to the last room.

"It's all normal, nothing special."

Lin Xiyao opened the wardrobe, rummaged through the clothes inside, and shook her head helplessly.

Ye Feng was also a little disappointed, according to the idea of criminal investigation, this fire was a fire and burned corpses, which can be regarded as a serial murder case.

These ten people were killed at the same time, there must be some internal connection and similarities, but so far, nothing has been found.

"The clue is broken, what should I do now?" Lin Xiyao closed the wardrobe and looked at Ye Feng sitting on the couch, and inevitably showed a look of loss.

Ye Feng let out a deep sigh and casually dropped his hand on a pillow.

The slight touch brought by the shaking of the pillow made Ye Feng stunned, and his vigilant eyes instantly looked at the pillow beside him.

"What's wrong with you?"

Seeing Ye Feng's alert expression, Lin Xiyao immediately stepped forward to ask.

Ye Feng didn't answer, and picked up the pillow with both hands, and there was a slight impact from inside.

"There seems to be something in the pillow." Ye Feng put the pillow to his ear and shook it vigorously, and there was a heavy object in it that hit everywhere with the shaking of the pillow.

"Take the pillow apart." Ye Feng said in a deep voice.

Lin Xiyao nodded, the mandarin duck knife in her hand was unsheathed, and the tip of the knife cut through the pillow.

Hands were torn apart, and a token appeared in front of the two of them.

It is a copper square token with two stars engraved on the front and the name of the token's owner engraved on the back.

"Nine-Star Division two-star bronze medal?!" Lin Xiyao picked up the token and observed it carefully.

No one dared to imitate the nine-star commander card, and this token was hidden in the pillow, which was obviously real.

"How can there be a token of the Nine Stars Division here?" Ye Feng's brows furrowed, and he felt more and more that this matter was far from being as simple as it seemed on the surface.

Although Lin Xiyao was shocked by the fact that the two-star bronze medal of the Nine Star Division appeared in the pillow, she did not say anything and quickly stuffed the token into her waist.

"It should be the dark stake of the Nine Star Division in the Purple Cloud Sword Sect." Lin Xiyao made a voice that only the two of them could hear.

The matter of the dark pile, as long as you bring the token back to the Phantom Star Pavilion, you will know it at a check.

Ye Feng nodded, and a frightened look appeared in his eyes: "The dark stake of the Nine Star Division died in the fire......

Now it seems that the Purple Cloud Sword Sect has caused a big deal......

Once Song Gongxing is guilty, the Ziyun Sword Sect is afraid that it will be charged with murdering the imperial court officials.

As a result, the Purple Cloud Sword Sect was fully taken over by the Nine Star Division, and there was no hope of turning over.

Not only that, once there is a conflict with the Purple Cloud Sword Sect in the process of tracking, a big battle is inevitable, and the Purple Cloud Sword Sect is likely to be wiped out from the map of Yangning Country from now on.

No matter how you look at this problem, the consequences of this matter are very serious, and Ye Feng must not let this kind of thing happen.

At present, we can only hide the news that the Nine Star Division Secret Pile died in the fire, and investigate the cause of the fire and the conspiracy behind it as soon as possible.

"What now?" Lin Xiyao ran out of ideas.

Ye Feng pinched his chin, thought for a while, and said in a deep voice: "At present, we can only start the investigation from the matter of gunpowder, first check the gunpowder store, and then check the Twelve Guards Forbidden Army." At the same time, let the Nine Star Division conduct an autopsy as soon as possible to see what other important discoveries can be made. ”

……

Yangning State was extremely strict in the control of gunpowder, from the mining of sulfur and saltpeter, to the development of gunpowder, to the production of artillery, and finally to the entire process of the 12 Guards and Forbidden Army, there were special officials in charge.

Ye Feng and Lin Xiyao held Song Gongyu's pendant in their hands and went directly to the powder magazine. After multiple interceptions and layers of registration and verification along the way, I finally came to the warehouse and met the official in charge of record management.

Seeing Song Gongyu's pendant, the official immediately bowed down, behaved very humblely, and came to Ye Feng's side: "I don't know that Lord Jiuxing Division is here in person, if you miss the welcome, please punish your lord." ”

Ye Feng seemed to have ushered in the pinnacle of power in his life at this moment, and he tried his best to show himself majesty and hold back the joy in his heart.

He cleared his throat and said in a loud voice, "Lord Ben...... This official should investigate the production, development, use, and circulation of all gunpowder in the past six months. ”

"Yes, yes." The official replied repeatedly, and hurriedly beckoned his subordinates to take out the records and show them to Ye Feng for viewing.

These records are locked in the warehouse, ordinary people have no permission to see, even if there is a need to record, there must be three people present at the same time to supervise the records and prevent anyone from making false accounts.

However, if you want to hide gunpowder from the world, it is the easiest and most effective method to use fake account books, and the simplest method is to exaggerate the amount used.

It can be understood as opening a company to issue fake invoices, spending a hundred, writing a thousand, and looking for financial reimbursement.

The same is true of gunpowder, in the process of making gunpowder, exaggerating the amount of loss and use, you can falsify the account books and secretly hide the next batch of gunpowder.

Reverse thinking, if you want to trace the gunpowder, starting from the account books of the powder magazine, is the best way.

"Why don't you start the investigation with the saltpeter mine?"

When the official went to get the account book, Lin Xiyao couldn't help but ask.

There is no problem with her thinking, after all, there is a possibility of being discovered by making false accounts, and the three of them are present at the same time to supervise each other's records, as well as various supervision and audit methods, it is difficult to hide gunpowder privately through account books. On the contrary, it is indeed better to start the investigation with the raw materials of gunpowder.

But Ye Feng didn't think so: "Gunpowder requires a combination of a variety of raw materials, and it is difficult for outsiders to know the formula and the proportion of various raw materials. Moreover, the production of gunpowder requires many special tools, and the requirements for the environment are also relatively large. It is very difficult to make gunpowder outside without permission. ”

Between questions and answers, several officials came to Ye Feng with account books.

The account books in the hands of the two men were stacked together, and they were more than half a man high.

"These are all the records of gunpowder between half a year, please check it out." The official returned to Ye Feng's side, spoke in a low voice, and said in a deep voice.

Ye Feng and Lin Xiyao glanced at each other, and swallowed hard, so many account books, you have to check the Year of the Monkey and Ma Yue......

"My lord, what else do you command?" Seeing that Ye Feng was motionless, the official thought that he was not well entertained, and hurriedly asked.

Ye Feng smiled awkwardly, he didn't want to sit here and flip through the account books for a few days and nights, and when the account books were checked, not to mention if he could find anything, those corpses stinked so much that they attracted flies.

"Ahem." Ye Feng stood upright, coughed lightly, and ordered, "This official should bring these account books back to the Nine Star Division and check them carefully." ”

Hearing that Ye Feng was going to take the account book away, the official immediately stepped forward and refused, although his attitude was resolute, his words were still humble: "Lord Hui, this account book is absolutely confidential, the emperor has ordered many times that the gunpowder must be strictly managed, and this account book must not be taken out of the powder magazine. Once the emperor blames it, the lower officials ......"

"This ......"

Ye Feng was a little hesitant, and originally wanted to use Song Gong's order to argue with the officials and forcibly take the account books away.

Seeing this, the official immediately proposed, "If you want to investigate the account books, you can send a commissioner here to check them." ”

That's a good idea.

"Hmm!" Ye Feng nodded vigorously, and followed the official's words and said, "This official also thinks so, there will be officials from the Nine Star Division who will come to check it later, and you have to be well received." ”

"The lower official is here to greet the officials of the Nine Star Division."

After leaving the powder magazine, this trip can be said to have not grasped the slightest clue.

"You want to tie me to the powder magazine to check the books, and I'm not an accountant." Ye Feng shook his head with a look of disgust.