Now, Zhang Zhongjian and Sun Simiao can't intervene, so they can only stand by and watch.

Even Old Man Sun, who is experienced in alchemy, can't understand it at this time.

"One sulfur, two nitrate, and three charcoal, do you mean the order or what?"

Sun Simiao looked a little closer and asked:

"Huh...... Is it the amount of each piece? ”

Lu Heng was busy with his hands, but he still had the kung fu to answer his doubts.

"Yes, it's a proportional formula."

"One part sulfur, two parts saltpeter, three parts charcoal."

"Just add a little sugar to it, and then you can seal this clay pot."

Making black powder, this mantra has been heard by many people.

Black powder was not difficult to make at all, and even in ancient times, these raw materials could be easily obtained from the alchemists, and it was easier to obtain them if they were handed over to the imperial court.

The raw materials brought by Sun Simiao are not small, and they are full of two big bags, which also creates a great production space for Lu Heng.

By the time he sealed the clay pot with mud, he had already made five or six earth bombs!

"Then how is this hemp rope soaked in fire oil used?"

Sun Simiao pointed to the long line at the top of the clay pot and asked shamelessly:

"The oil is all used to burn, do you want to burn this jar for alchemy?"

Lu Heng smiled.

He shook his head and said:

"It's not...... Gee, I can't explain this thing. ”

"That's it, old man, you can find an inn close to the city gate tonight, it's late at night, maybe there will be a surprise."

didn't give Sun Simiao a chance to ask again, Lu Heng turned his head directly to look at Zhang Zhongjian.

"Gang Leader Zhang, I'm ready."

"As long as you give me manpower, I promise you that I can bring back as much as I take out."

"There may be injuries, but there will never be death!"

Zhang Zhongjian stared at the large clay pots on the ground in confusion for a long time.

After a long time, he nodded with puzzlement.

"The manpower has been ordered to go down, they will go to the city gate in advance to wait for you, after all, there are too many people, and it is easy to be interrogated when you go out of the city."

"Chang'an City has not been peaceful recently, and the city gate is much stricter."

"Hu Lao Wu is also here, let him help you find someone after you go out of the city."

"And ......"

Zhang Zhongjian paused and said:

"The old man believes in your promise, but you also have to pay attention to safety."

Judging from his previous dealings with Lu Heng, although this kid has a straightforward and reckless personality, and he is impulsive in speaking and doing things, his character has always been very good.

Since you dare to guarantee the safety of your brothers, you should be sure enough.

Lu Heng smiled and arched his hand at him, saying:

"Okay!"

"You can ask someone to help me carry all these jars to the carriage, I will go out of the city first, but the specific action, maybe the effect will be better in the evening."

"When the time comes, you can also join Old Man Sun to watch the excitement and listen to it!"

………………

Outside the city.

Lu Heng's carriage staggered out of the city without being too checked.

After all, his hometown is on the outskirts of Beijing, and he was always in and out before, and the forbidden army at the city gate was already familiar with him.

After leaving the city, Lu Heng lifted the curtain and looked out.

Sure enough, after a while, he saw Hu Lao Wu waving at him.

Jumping out of the carriage, the other party immediately rushed over to say hello.

"Doctor Lu, you're here!"

Hu Lao Wu pointed to the scattered crowd in several nearby places, and said in a low voice:

"The brothers are all waiting here, you name a place, and we will go there immediately."

Lu Heng raised his eyebrows, a little surprised.

To say that the quality of the people of this Tiger Head Gang is really good.

This place is not close to the city gate, and after a rough sweep, there are hundreds of people in several groups in total, and if they are too gathered, it is easy to be alerted by the forbidden troops patrolling the city gate.

At that time, whether someone will report the news or another matter, it is estimated that their actions today will be directly ruined because of the investigation.

"You should know where the Iron Wolf Gang's Tangkou Village is, right?"

Lu Heng also asked in a low voice:

"I've only heard your helper say that it seems to be in the southwestern suburbs, but the specific location is not very clear."

"He said someone had been there."

"Can you find it?"

Hu Lao Wu grinned and beckoned to a young man next to him.

The young man's clothes were washed a little white, evidently worn for a long time, but very clean.

"His name is Zheng Yang, and he used to work in the Iron Wolf Gang."

"But since everyone in his family was killed by the gang, he didn't want to do it there anymore, and he was afraid of retaliation after he came out, so he joined our Tiger Head Gang."

"If there's anything you want to ask, you can just ask him!"

As soon as Lu Heng heard this name, he instantly became vigilant.

He had learned from Changsun Chong before that many of the gangs in the Iron Wolf Gang were side branches of the family.

This person's surname is Zheng ...... It can't be a side branch of the Xingyang Zheng family, right?

After thinking for a moment, Lu Heng got straight to the point:

"How long have you been in the Tiger Head Gang, and how did your family get killed by the Iron Wolf Gang?"

"It's not that I don't believe you, it's mainly because today is very important, and I have to ask clearly."

The young man named Zheng Yang was not angry, but his voice was relatively low.

"My family is a side branch of the Zheng family in Xingyang, but it is the kind of side branch that was hundreds of years ago, and it has been in decline for hundreds of years."

"More than ten years ago, I followed my parents to Chang'an, and they said that there were distant relatives in the family who were officials here, although I hadn't seen them, but after all, they were from an ancestral hall and would help."

"After they came, they gave my family a bite to eat, and my father and mother also had some extra money on hand, and even provided me with a private school."

"But six years ago, my father didn't know who took him and started gambling for money."

"Since then, people in the family have often come to collect debts, and they threatened to sell my mother and sister to Yangzhou if they don't repay the money......"

"I can only stop studying and join the Iron Wolf Gang to do things for them, and after I entered, I realized that those who came to ask for debts were also members of the Iron Wolf Gang."

"But those gambling debts seem to be unfinished for a lifetime, I tried my best to do things but it was still not clean, and in the end I could only watch my father be cut off and commit suicide, and my mother and sister were taken away and sold to Jiangnan."

"Childe, do you believe it now?"

"Such a thing, such a person, I am not the only one in the Iron Wolf Gang!"

"We hate those people more than anyone else!"

Lu Heng listened to everything Zheng Yang said in silence.

This is basically not different from what he knew before, and Zheng Yang said with suppressed anger, and he didn't lie about it.

While listening carefully, Lu Heng also carefully recalled the list in his mind.

There is indeed no name of this Zheng Yang in it.

Half a day.

He raised his hand and patted the other man on the shoulder.

"Well, I believe you now."

"It seems that the enmity between you and them is no less than mine."

"Brother, we're all big tonight, let these brutes listen to it!"