The work of opening the passage is still proceeding as planned.

On this day, in the underground passage, everyone was nervously working.

Wang Donghai shone a flashlight, and in front of him was a stone brick wall that was tightly blocked by bricks.

Wang Donghai hurriedly asked the strong man: Lao Hu, how to get the stone bricks here.

The strong man stepped forward to look at it and said, "This is made of lime mixed with glutinous rice, which is very tight inside and is not easy to seep water." ”

Wang Donghai touched it and asked, "How do you move this tightly?" ”

"It's definitely not possible to use your hands, you need special tools." The strong man smiled proudly, and reached out to take a thin shovel from the bag, which was very sharp. He inserted the shovel into the crack of the stone brick, prying it up and down, and moving back and forth, several people cooperated, and after a while, the stone brick was pried off.

The first brick was taken down, and everyone took out the rest of the stone bricks with all their hands, and the work of digging the tunnel began in earnest.

Another young man volunteered to dig in front, and the people behind him carried the dirt out one by one, and piled it up in the back.

The group fought selflessly, and the tunnel stretched forward, and bags of dirt were transported to the back. In less than half an hour, more than one meter was excavated.

The strong man saw that the young man was sweating, and the strong man said: Your digging action is too big, and it is easy to alarm the people above, so I will dig!

"Okay!" The young man threw down his tools and crawled out from the front.

The strong man took his place and drilled in front and dug hard.

He didn't dig much at a time, but he was fast and much quieter. At such a close distance, I also heard a slight "rustle" sound, like the sound of a mouse pulling a wooden shovel.

It's an easy sound to misinterpret and not be taken seriously.

In a short time, the strong man dug into more than a meter, and he was also so tired that he was sweating and panting.

"Let's take a break!" Wang Donghai handed the kettle over and said softly.

"It's okay, I can still hold on, it should be almost there!" Under the light of the flashlight, the strong man worked hard again.

Sure enough, I quickly dug my head. The strong man shoveled down and touched the stone bricks. There was also a gentle tapping sound from the opposite side.

"Dig through, dig through!" The strong man said happily.

At this time, there were several more knocking sounds from the opposite side, "two fast, one slow, two fast". The strong man also sent the signal with a shovel.

The strong man excitedly cleaned the dirt from the wall, and in a short time it was clean. At this point, only a thin layer of brick walls remained.

Ruan Anh Hoa's voice came from the opposite side: Comrades have worked hard, don't break through the wall first, you can withdraw now.

"Okay, let's get out right away!" Wang Donghai replied.

He quickly retreated with a few men and restored the exit to its original state.