Chen Zhennan shook his head. "No, time waits for no one. The progress is too slow. If we can make these things, we can save a lot of lives."

Chen Zhennan continued to immerse himself in the intricate world of firearm manufacturing, the sounds of metal clanging and subtle adjustments intertwining.

"boom!"

Suddenly, a deafening roar came from the room opposite. The force of the explosion was so great that the entire tunnel shook.

"What's going on?!"

Chen Zhennan looked up abruptly, and a thick plume of black smoke billowed from the direction of the explosion, heading straight for his face.

He turned around and quickly covered his mouth and nose with his arm to avoid inhaling the toxic fumes.

"General, are you alright?"

The assistants rushed over in a panic to check on Chen Zhennan's condition.

Chen Zhennan waved his hand and pointed to the room opposite.

"Quickly, quickly carry the third son out!"

Several men rushed to the exploded room and carefully carried out the unconscious third brother. His face was blackened by smoke and his breathing was weak.

"General, the tunnel exit is blocked! We can't get out!"

Chen Zhennan shook his head and stepped out of the room, only to find that the tunnels on both sides had collapsed.

"We need to get out of here quickly, or we'll all suffocate."

As he spoke, Chen Zhennan took the last remaining torch, looked around carefully, and found that the collapse caused by the explosion was very serious. The original exit had been blocked by rubble and mud, and it would not be easy to get out through the original route.

"Let's find another way. Let's make a hole in the top and go out from there."

As he spoke, Chen Zhennan led his men to quickly pick up shovels and hoes and begin digging at the top of the tunnel.

Through their efforts, the soil and rocks were gradually removed, and the opening of the cave gradually widened.

As time went on, the opening finally became large enough for a person to pass through.

Chen Zhennan was the first to climb out, and then helped his other subordinates crawl out of the tunnel one by one.