Chapter 3271 The mystery inside the cave

"Brother Zhao, if Zhang Yu and the others really came here, they most likely went down from here. What should we do next? Should we ask someone to go down and check first." Yang Jiecheng has been following Zhao Gang. Beside him, he spoke at this moment.

Zhao Gang thought about it for a moment, nodded and said, "I must let someone go down and take a look."

After saying this, he turned around and greeted: "Monkey, monkey..."

"Team leader..." A short man immediately emerged from the crowd.

This kid really lives up to his name. He is only 1.6 meters tall. He is small, dry and skinny. It is estimated that wolves will cry when they see him. There is no flesh on his body.

"The task of going down to check is left to you. Bring all the equipment later, and I will tie a rope around your waist. It's still the same as before. If you need to send the rope down, just pull it hard. If you need to pull you Come up, just pull hard three times, if you need to add more people, just pull hard five times!" Zhao Gang said straightforwardly.

"I understand, don't worry, team leader." Monkey nodded and said.

At that moment, someone brought the big bag over. This time he took out a gas mask, a small oxygen bottle, and a hat with a light on the top of his head. The monkey skillfully put on the mask and hat, and carried an oxygen tank on his back.

Then someone took the rope and tied it to the monkey's waist. After tying it, the monkey tugged on his body and said, "Oh."

Zhao Gang waved his hand and said: "Be careful!"

"I know!" the monkey agreed. He immediately lay down and dived in with his head down.

Normal people can easily go down this hole, not to mention that he is so thin and small, so it is even easier for him to go down.

The reason why the head is facing down is because the hat on the top of the head has a light, so that everything inside can be seen clearly.

There were four people above who were responsible for pulling the rope, but they didn't release much at once. They just waited for the monkey to pull the rope. When there was a sensor above, they lowered it three meters.

I have to say that the special department is really stable in everything it does. Even if the cave is slippery, with the rope tied around his waist, he won't slide to the bottom all at once.

Just like this, little by little, the monkey finally came to the end. This end is not a room, but a fully enclosed tube, surrounded by iron. The space is not small, and can accommodate two people.

When the monkey came here, he was obviously stunned for a moment. The thin man looked around, then raised his hand and knocked on the iron sheet in front.

"Bang bang bang..."

With just one knock, he could hear a hollow sound coming from behind the iron sheet. In this way, he was completely sure that there was a cave behind this iron sheet.

After thinking for a moment, the monkey turned back and pulled the rope around his waist three times in a row.

After three pulls, the rope immediately pulled upward. His body began to move upward slowly, and after a while, he was pulled out of the hole.

As soon as the person came up, Zhao Gang immediately asked, "What's the situation down there?" before he even got up from the ground.

The monkey jumped up from the ground quickly and said: "Team leader, there is a dead end down here, all are iron plates. However, I stretched out my hand and knocked, and found that there was nothing behind the iron plate. Also, this iron plate shouldn't be Extremely thick.”

"It's a bit interesting..." Zhao Gang said, with a smile on his face.

"Brother Zhao, why is this interesting?" Guo Xin said curiously.

"Zhang Yu and the others must have gone down from here, but this place is now sealed. From this, it is not difficult to determine that Zhang Yu and the others must have been trapped down there." Zhao Gang said confidently.

"Then what should we do?" Yang Jiecheng asked.

"Take the guys down, cut the iron plate open, and if they are trapped, rescue them," Zhao Gang said.

After hearing this, Guo Xin was stunned for a moment, then nodded and said: "Yes, yes, yes... we saved that boy Zhang Yu this time, let's see how proud he is in the future..."

It is not the style of the Confidential Investigation Agency to say that you will not save someone even if you are facing death. Zhang Yu is not a treacherous and evil person, and Zhao Gang is not particularly narrow-minded either. His purpose is simple, just to regain his position.

Zhao Gang looked at the monkey and said, "Which guy should you take down?"

"The cutting machine is too big to carry down. If we do it bit by bit, I think we can only use an electric drill." Monkey said.

"Match the diamond drill bit, go down and open the steel plate for me!" Zhao Gang said.

"Yes!" Monkey agreed immediately.

Someone immediately found a hand drill and a box of diamond drill bits for the monkey. You know, the things used by the Confidential Investigation Bureau are all high-end goods, and they are definitely much easier to use than the drills used for drilling holes in decoration.

The monkey took the guy and got into the cave with his head down. The top lowered him bit by bit and came to the place where there was an iron plate before.

Although this place can accommodate two people, it is relatively wide, but if you want to work here, it is definitely not something ordinary people can do. That is, only a monkey with a particularly small body can do it with ease.

This time, we had to cut the steel plate, so as soon as we came up, Monkey observed it more carefully. After all, we had to study it clearly and start there first. He soon discovered that the iron plate below was not one piece, but three circular iron plates, which should be blocking the three holes respectively. Because behind these three holes, hollow sounds can be made after knocking.

The monkey thought about it and decided to use a drill bit to drill the iron plate on the right first. The hand drill he used was very powerful. As soon as he started it, it made a "chichichichi" sound, and sparks flew everywhere. In no time, a hole was drilled into the edge of the steel plate.

Look at the depth, it's almost two centimeters. A steel plate of this thickness cannot be drilled through by an ordinary electric drill. Not to mention, the speed is so fast.

At this moment, Zhang Yu and Ling Hongzi in the room already didn't know what to do.

The two have been discussing ideas, but they still can't come up with any decent solution. The hole in the roof of the shed is only three meters above the ground. What matters is that the top is extremely slippery. It is impossible for people to go up along the hole.

"Chi chi chi chi..."

Just when the two people were frowning and unable to think of a solution, such a voice suddenly sounded from above.

With their ears, they could both hear clearly. They looked at each other, and Ling Hongzi said, "Did you hear anything?"

"It's chichi chi chi chi chi chi chi chi chi chi chi chi chi chi from above... It sounds a bit like the sound of an electric drill..." Zhang Yu said with confusion.

"I think it's a bit like it. Why is there such a movement... Our people don't have electric drills..." Ling Hongzi said in confusion.

"They definitely can't be our people..." Zhang Yu hesitated for a moment, then his eyes lit up and he said: "Could they be people from the Confidential Investigation Department? They have been following us. They probably have such equipment. There is only the Confidential Investigation Bureau..."