Then, Lu Yuan left the armored vehicle, leaving a group of people inside the vehicle groaning in pain.
Back home, Xiao Shan breathed a sigh of relief when she saw Lu Yuan.
"Thank God you're finally back! What happened outside?"
As soon as Xiao Shan finished speaking, she smelled the strong stench of blood on Lu Yuan: "What happened to you? Are you injured? Why do you smell so strongly of blood?"
Lu Yuan was also somewhat taken aback. How could he still smell of blood after being exposed to the torrential rain outside?
Lu Yuan looked down at his clothes and found that his pants were covered in blood from the spray inside the carriage.
"Oh! A few petty thieves tried to take advantage of us, but I've already taught them a lesson, so they probably won't come back!"
Upon hearing Lu Yuan's words, a trace of worry flashed across Xiao Shan's face.
"Someone's trying to take us down? Looks like we're too big a target! They can't afford to mess with the core fortress people, so they've started targeting us!"
"Yes! But don't worry too much, it's still very safe here! It's just that there's a problem with the underpass!"
Then, Lu Yuan briefly told Xiao Shan what had just happened.
"You mean, Guo Jialiang got his hands on the blueprints for our underground passage?"
"It should be, because the place they just drove from is right above our underpass, and the location they chose is the closest point of the underpass to the ground. Obviously, they must have our blueprints."
After hearing this, Xiao Shan's face immediately showed a serious expression: "Then it seems we have to think of a way, otherwise after this wave comes, there will definitely be more, and they will continue to try to take advantage of us in the next wave!"
Lu Yuan sighed, "Yeah, I didn't expect these people to start eyeing us when they can't even handle their own food. We have to think of a solution!"
So the two of them sat in the room and fell into deep thought.
After a while, an idea suddenly came to Lu Yuan's mind.
"How about this? We'll set up some traps in the underground passage. That way, when they come down, we'll have a heads-up and we can catch some of them with the traps. This will serve as a deterrent and make them afraid to mess with us again!"
"Hmm, good idea. Let's start preparing now. We don't have much to do right now, but what about our underground passage? We'll need to use it ourselves later."
"Sigh, we can't continue digging the underground tunnel for now. In the next few days, the main force will likely bring people to deal with the alluvial plain here. If we choose to continue digging the tunnel now, we might run into them. If we encounter any more trouble and they manage to dig through the ground, that would be terrible!"
Xiao Shan thought for a moment, then a helpless look appeared on her face: "Wouldn't all the ground we dug before be wasted if it froze? That's such a waste! You've been working on these underground passages for so long!"
"Who says otherwise? But safety is the most important thing right now. We should set up some traps in these underground passages as soon as possible!"
After saying that, Lu Yuan went to his study and brought over the blueprints and computer from that time.
Then he took a pen and paper and marked several locations in the underground passage.
"These locations are all closest to the ground, so let's set up traps in these places!"
Xiao Shan nodded, then took the drawings in her hands and looked at them gently.
Lu Yuanbiao's locations total five, and these locations are all only a dozen meters above the ground.
When they were digging the underground tunnel, they had to take into account the geological conditions and rocks. So, when they encountered some hard rocks underground, Lu Yuan would adjust the location of the tunnel, either by changing the route or digging upwards, which would make the digging process easier.
After all, it's impossible to dig through such solid underground rock without large machinery.
Moreover, it is not only time-consuming and laborious, but it can also easily cause structural changes in the underground rock layers, leading to collapse.
After the two finished discussing these things, Lu Yuan led Xiao Shan to the first location in the underground passage.
The first location is only twelve meters above the ground, making it relatively easy to dig through.
The area above is composed of loose rocks, and the geological structure here is very unstable.
However, it is easy to dig here, and there is basically no risk of seepage. In addition, Lu Yuan will use steel bars and concrete to reinforce it.
However, it now seems that these reinforced concrete structures are basically not providing any protection under the digging of these people. Lu Yuan looked at the passage in front of him and pondered for a moment.
"This is basically their favorite spot to dig. They just dug here, so they must have obtained detailed maps and saw that this location is the shallowest point from the surface, which is why they chose it!"
Xiao Shan quietly looked around and saw that the area above had been reinforced with concrete and steel bars.
Because the concrete was poured relatively recently, it appears somewhat dark in color and slightly damp. Although it has dried, it can be easily broken open.
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