When Yang Jing and his team left San Fernando, they left Carl Morris, Bruno and two brothers here to prepare.

The preparations of the four of them were quite good, at least Yang Jing was very satisfied. In less than two days, they rented a single-family two-story apartment building from the vicinity of the Catholic church, and quietly purchased some tools, including underground excavation tools and most important positioning tools.

Underground horizontal excavation has never been a good job. In the past, it was possible to rely on manual excavation. Now, with the continuous development of technology, there are more and more small underground horizontal excavation tools that can be operated by single person, so now underground horizontal excavation work has begun to become simpler.

But no matter how simple it is, this underground positioning tool is absolutely indispensable. If you do horizontal excavation underground, if you do not have accurate positioning, the most direct consequence is that the final excavation may deviate from the predetermined coordinate location, and this possibility is very high. Therefore, this underground positioning tool is very important.

In the past, when these precision instruments were not available, it was all about experience to perform lateral excavation underground or in the mountain. Not experienced workers, they dared and could not accurately locate the excavation direction.

But now it’s much simpler, and a compact laser positioner can completely solve this problem.

The single-family two-story apartment building rented by Morris and others is located in the northwest of the church, and is more than 30 meters away from the straight line of the church. However, because there is another family in the middle, for safety reasons, Yang Jing and others can only dig twenty meters east from the apartment building, and then dig about forty meters south to the south before they can dig the predetermined coordinate location.

If it were in the past, digging a distance of 60 meters underground would definitely not be a light job, but it doesn't matter now. With those small machinery, the most difficult excavation work has become the lightest job.

This Catholic church is located in the highest position within a radius of one kilometer. Although it is only one kilometer away from the sea, the altitude here is thirty or forty meters higher than the sea.

Nothing else, the reason why the Spaniards chose to establish a settlement here was because there was a small hill near the sea. Whether from the perspective of residence or military, it was undoubtedly the best choice to build a settlement on this hill.

In fact, not only the Spanish, but later French, British, and even Germans would make such a choice when they established their first settlement in overseas colonies.

The entire San Fernando was developed centered on the residence established by the Spanish. Although the city has developed greatly in modern times, this small area in the core area is still the highest area around.

Therefore, if you dig an underground passage here, you don’t have to worry about digging out a lot of groundwater.

Looking at the tools in the basement of this small building, Yang Jing was really satisfied.

"Carl, John, thank you for your hard work."

"It's not hard, boss, you give me a lot of money, so it's easy for us to do things. In Chinese, if you have money to do things in such a place, you will be the master!" Morris said with a smile, and the last "uncle" was still spoken in broken Chinese.

Several people laughed.

Yang Jing asked, "There is no clue left when renting this small building, right?"

Bruno nodded and said, "Don't worry, boss, I used another identity to find a local gangster, gave him some money, and then asked him to find another person. Finally, I found an intermediary as this person, with several layers of space between them. With the efficiency of the government here, they couldn't find us."

After hearing Bruno say this, Yang Jing nodded with confidence. Among these people, besides Chris, Bruno is the most responsible for doing things. Since he dares to make a guarantee and says it's okay, it must be okay. With the ability of these elites, if there is a tail left behind, it would be a joke.

"Okay, since there is nothing wrong with it, let's start digging as soon as possible! Come on, let's make some moves first, I'll set the direction first, and after setting the direction, we'll start digging! Don't waste time."

After several people retreated, Yang Jing activated the Sky Eye skill, and then he could clearly see the ball of treasure light buried about seven meters underground about thirty meters away from the southeast.

According to the position where the treasure light was emitted, Yang Jing slightly shifted about forty-five degrees and placed the small laser positioner directly eastward. After starting the device, a blue-green laser light suddenly shot out.

"Dig from here to dig diagonally in this direction, with the depth set to seven meters. After digging twenty meters in this direction, I will position it again."

"OK, boss, don't worry, we are very good at digging such holes. Not to mention that there are such small machinery now, even without machinery, we can dig such holes with engineer shovels." Kevin Martin said with a smile.

He is not talking nonsense. As an elite retired special forces soldier, they are absolutely familiar with digging holes. Among the training they receive, digging holes is an absolutely essential training. After rigorous training, they can use any tool to dig a cave that can be hidden in the shortest time.

Yang Jing looked at Kevin Martin with a smile, "I said Kevin, why don't you dig with machinery? You use engineer shovels so well, just use engineer shovels to dig."

Kevin Marting was immediately embarrassed there, and several bad friends around him burst into laughter.

After setting the direction, a group of strong men began to operate the small excavation tools and began to dig.

This small excavation tool relies on the motor as power, and the noise is not very high. When you start in the basement and close the basement door, you can basically hear nothing on it. Once you continue to dig down to a depth of seven meters, you can't hear anything on it at all through the seven-meter-thick soil layer.

This machine has a horizontal fixing frame that can be stretched up to two and a half meters long. There is a ground anchor under the rack to fix it, that is, four downward auger drill bits can be drilled directly downward, and the rack can be fixed in a few minutes.

As for the spiral driller that performs transverse excavation, as long as the motor is started, the spiral driller can break through the soil layer in front and continuously bring the soil in front to the back through the spiral iron sheet behind.

As long as you don’t encounter rocks or something in front of you, just digging in the soil, this kind of excavator can dig a hole with a diameter of 40 cm and a depth of 2.5 meters in horizontal direction in just twenty minutes!

However, the diameter of 40 cm is obviously not enough. Such a hole must be at least four on a plane with a width of one meter and a height of one meter and a height of one meter. In this way, after the hole is made, the soil between the four holes is dug with an engineer shovel to form a real channel with a width of one meter and a height of one meter.

At that time, the support on the inner frame of the passage can completely ensure the stability of this underground passage.

In other words, if you use two such excavation equipment to dig at the same time, you can dig forward in about an hour. A length of 60 meters can be dug in at most two days. If it weren't for the construction to be heard by outsiders in the middle of the night, if they were to keep the construction going, they would be able to dig out this underground passage in more than a day.

Of course, it is impossible to dig just. After all, the digging soil also needs to be processed, so after a few people discussed it, they simply constructed in the day and evening. After fourteen hours a day, they could dig out more than 30 meters.

As for the evening, it is used to deal with the digging soil.

This soil is easy to deal with. Morris bought a second-hand Toyota pickup truck at a local underground black car market. The digging of soil was directly put into snakeskin bags and temporarily piled up in the yard of the building. When it was late at night, the pickup truck would run a few times and throw these snakeskin bags with soil into the small lake more than 500 meters away to the east.

Anyway, there was no one around that small lake at night, so it was the best thing to do. Bruno had already stepped on this matter in advance and knew the situation of the small lake.

In this way, some digging holes, some transporting soil, and some build supporting positions. These people cooperated tacitly and spent two days to finally dig the underground passage to the predetermined coordinate location.

This time it happened to be around 10 o'clock the next night when the digging began, but there was no day and night in the passage, and it was always in the daytime state - there were lights in the passage.

Looking at the wall made of rocks and cement in front of him, Yang Jing smiled with satisfaction. Here, using the Sky Eye skill, you can even see through this wall and see the situation on the side of the wall.

"Yang Jing, behind this wall is the treasure of the Japanese in the past?" Princess bent down and stood behind Yang Jing. She could only stand behind Yang Jing. In such a narrow underground passage, the two were difficult to line up side by side, and the height was limited, so she could only bend down and queue up one by one.

Yang Jing, who also bent down to look at the wall, nodded and said, "Yes, why would such a artificial wall suddenly appear here? Obviously, the Japanese knew that the treasures they robbed from Southeast Asia could no longer be transported back to their homeland, so they could only use this method of hiding on the spot. I estimate that the value of these treasures should be very high, so the Japanese specially built such a basement for treasures under the church, and then filled all the passages that could lead to this place to death. In this way, no one would know about this place except those Japanese who buried the treasures at that time."

"These Japanese will hide!" Princess said angrily.
Chapter completed!