Running and running, the sky was completely dark, and the surroundings were pitch black. There was no moonlight today, and the moon was blocked by dark clouds.

"Damn it, why is there no moon tonight?" Qiao Mu stopped slowly, the surrounding was very quiet and dark, only the sound of insects, and the roar of beasts from a distance, he was a little lost in his direction.

He began to regret that he shouldn't have chosen to leave at night, and now he didn't know where he was going.

"I just came out of here, so if you continue to walk in this direction, you should be able to leave."

Qiao Mu thought about it, and then walked forward, being very careful with every step he took. He put the long sword in front of him, and poked it hard every step he took.

"Should be far away from that valley." Qiao Mu calculated the distance and heaved a sigh of relief.

"Hoo hoo hoo..."

Suddenly, Qiao Mu seemed to hear something, which made him frown.

His footsteps paused, and he continued to walk forward, one step or two, nothing happened, and he let go of his raised heart.

"Tat Tat Tat..."

He continued to walk a few steps forward, and the long sword seemed to have poked something, and the texture was a bit hard. After poking it hard a few times, he could feel that the object was huge and blocked his way.

"What is it?" Qiao Mu frowned, and slowly moved forward with his hand.

It was cold and uneven, as if it could still move.

"Can it move?" Qiao Mu's expression changed, his whole body trembled, and he turned around and was about to run.

But the next moment, a tyrannical roar sounded in his ears, Qiao Mu's head was a little blank, he knew what it was, it was clearly a sleeping giant beast.

There was a bitterness in the corner of his mouth, he didn't expect that he would fall into the net directly in the end, and walked into the valley and bumped into the giant beast directly.

He was very regretful, he knew that he would not be able to come out after staying in the cave, and now it was over for him to say anything.

"ah......"

The screams sounded suddenly, but stopped abruptly.

. . . . . . . . . . . .

"One more, ( ̄▽ ̄). Please support."

Chapter 827 Production of black powder.

The next day, in Xiyang City, Liu Feng and Mina just finished their breakfast and boarded the carriage to the scientific research department.

"Tat Tat Tat..."

Today's itinerary of Liu Feng and Mina is kept secret, because they are going to inspect the black powder workshop.

Currently, there are only a handful of people who know about gunpowder, and Mina is one of them.

Although she knew about the existence of gunpowder, Mina didn't know its power and horror. Liu Feng didn't plan to expose this cross-age product too early.

Simply, Mina is also a sensible person, knowing what to ask and what not to ask.

"Tat Tat Tat..."

Soon, the carriage stopped in front of the scientific research department. After Liu Feng nodded to the saluting soldiers, he swiped his face and entered the scientific research department, and finally came to the deepest part of the scientific research department.

This is an open field, the ground is full of soldiers, there is only a small concrete house in the middle of the open field, there are no other buildings around it, only a lawn,

It turned out that this was a big pit, but later Liu Feng asked people to continue digging along this pit.

Finally, the foundation was laid and an underground research room was built. After filling the top with soil and planting grass on the ground, it was impossible to see that there was a secret research room underground.

And here is the place where Liu Feng used to develop gunpowder. The surrounding area is wide enough, firstly for the sake of confidentiality, and secondly, because it is not easy for people to approach and lurk in.

On the ground, there are several groups of soldiers patrolling 24 hours a day, and there is no chance for people to approach in the open surroundings.

As soon as someone appeared, he would be seen at a glance on this open ground, and would be directly surrounded by soldiers the next moment.

The entrance to this underground research room is the small cement room. Dozens of soldiers guarded the room. The cement house had no windows, only a gate made of fine steel and a large lock that could not be easily opened. Only those with Liu Feng's warrant could enter and exit.

Liu Feng brought Mina here, and the soldiers guarding the gate quickly saluted.

"Open the door."

"Yes." The soldier responded respectfully, took out a key from his body, and opened the lock.

"Crack..."

Then two more soldiers stepped forward to take out the keys, and the three of them slowly opened the door together. This was for the sake of safety, so the thickness of the door was made a few centimeters, and the keys of the three needed to be opened together. have to open.

Liu Feng led Mina in calmly. There was nothing in the house except a staircase leading to the ground.

"Tap Tat Tat..."

Liu Feng took out the flashlight he had prepared in advance and walked underground, only the sound of footsteps echoed.

The stairs were not deep, and they came to the end soon. Then there was a passage. Going forward, there was another door, which was guarded by four soldiers.

"Open the door." Liu Feng said in a deep voice.

"Yes." The soldier replied, the door would be lighter, and the two of them opened it.

There are two rooms behind the door, one of which has a wooden sign on it, which says the clothes room, and the other room is completely closed.

At the door of the closed room, there were four special soldiers guarding the door, holding Tang swords with serious faces. After seeing Liu Feng coming to salute, they still guarded the door.

Liu Feng nodded to the four of them, and led Mina into the closed room. After entering the room, he saw eight researchers busy on the workbench.

They are all wearing linen clothes, and they are not allowed to bring anything related to iron into the research room. This is for the sake of safety, and the materials used in the entire research room are all wooden products.

"..." Mina looked at everything inside in amazement, and wanted to ask something, but remembering the seriousness of the journey, she finally suppressed her curiosity.

The appearance of the two of Liu Feng caught the attention of the eight people, and they put down their work one after another, with respectful and awe-inspiring smiles on their faces.

Liu Feng asked Mina to find these eight people. They were congenitally or acquiredly dumb and could not read. This is what Liu Feng wanted, in order to prevent the secret of gunpowder from being leaked out.

···················································

As for why they are so happy, it is because Liu Feng promised to take good care of their family, and their monthly salary here is two silver coins, which is why they are happy.

Of course, the price is that after the black powder comes out, they will not be able to leave the research room for a long time.

Their future lives will be restricted by others. For example, build a courtyard in Xiyang City, let them live in it, and prevent them from too much contact with the outside world.

They knew about this, but they didn't care, because they valued that the salary of two silver coins per month, two silver coins per month, could make their family live well.

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