When Jiang Yan returned to the shelter, Qin Lang and Ye Qing also came back.

The two of them were holding some water and dry food, as well as a first aid kit marked with a red cross and three paper maps placed in a waterproof bag.

The map was spread out, and it was full of dense lines, like a combination of a honeycomb and a maze.

The starting point is the Lieyan Base and the end point is the Yaoben Base.

The main tunnel in the middle where the trains operate has the widest lines and is marked in red.

Outside the Yaoben Base, there are several very short red lines, and there is no mark on where they lead to.

Jiang Yan glanced at it and was secretly amazed.

This project consumes a lot of special metal materials and is extremely difficult to construct. The fireproofing, waterproofing, ventilation, earthquake resistance and so on are all of the highest level. The cost is probably sky-high.

If it were known to the world before the end of the world, it would definitely break the Guinness record.

However, is such a large investment just to facilitate the travel between the two bases?

Jiang Yan was deeply skeptical.

"This thick red line is the main tunnel. The rest of these are all connected in all directions. If there is a landslide on the temporary line, we can just go around and reach Dongshan. The part marked with a triangle in the middle of the line is the exit to the main tunnel." Qin Lang pointed at the lines.

Su Dai frowned and asked in confusion, "Strange, why did the tunnel collapse, but nothing happened here?"

"The space here is small, the mutual support is stronger, and the earthquake resistance level is also higher. This is why it is relatively safer to stay in a small space when an earthquake occurs." Sun Jingtao glanced at his wife and gave her a popular science explanation.

"In these arc-shaped passages, there are also some equilateral hexagonal pipes. They are truly designed with reference to beehives and have the highest strength and stability. If you get separated later and encounter three landslides, try to find the hexagonal pipes."

Qin Lang said, and pointed to a part of the lines marked in blue on the map.

"Okay, that's all I have to say. Does anyone have any questions?"

The remaining five people shook their heads, "No."

"Then let's rest for a while and set off in five minutes?"

"Okay."

Several people sat there with their eyes closed.

After a while, Jiang Yan opened her eyes and said,

"These shelters have passages that lead in all directions. Logically, people in the carriages should be able to come in. But there is no sound at all. Isn't it too strange?"

Her five senses have been upgraded by the space, so her hearing is naturally much stronger than everyone else.

When she closed her eyes to rest just now, she concentrated and listened for a long time, but she didn't hear any movement.

When she went to check if the tunnel was blocked, she didn't see any figures on the front of the train.

It's impossible that they were all crushed under the rubble, right?

Kong Wu and the others were also stunned when they heard Jiang Yan's words, "Could the whole army be wiped out?"

After saying that, they quickly said "Pooh".

"Impossible." Qin Lang denied it directly, "Unless the shelter also collapsed."

It's hard to say what happened   to the common people, but those soldiers were all well-trained, so it's impossible that there were no survivors.

"Maybe everyone was tired and no one said anything." Su Dai analyzed.

"I hope so." Jiang Yan's eyebrows twisted slightly. It is said that there must be something wrong when things are abnormal.   She always felt something was strange, but she couldn't put her finger on it.   "Let's go, let's go. Everyone follow me, let's try to walk close to the edge of the tunnel." Qin Lang picked up the supplies and stood up.   Ye Qing stood up right after him, and at this moment, his figure suddenly shook.   The amplitude of the shaking was not small, and it didn't seem like the kind of shaking caused by not standing firmly.   Kong Wu, who was standing behind him, was stunned for a moment, "Ye Qing, what's wrong with you? Did you get internal injuries just now?"   There were stones falling earlier, and several people had scratches and broken skin.   Some of them had muscle injuries, but there was no bleeding, so it was not obvious.   "It's okay." Ye Qing smiled and said, and volunteered to carry the supplies he had found earlier.   Jiang Yan turned around and glanced at him silently. She immediately found something wrong and shone the flashlight on his arm:   "What are you doing?"   The remaining five people heard this and looked in the direction of the light source. Their breath was stagnant: "This!!!"   Thumb-sized red blood bags appeared on Ye Qing's arm.   The red was black and seemed to be broken but not yet broken.   Several people clearly remembered that when he rolled up his sleeves to move stones before coming out of the car, there was obviously no blood bags.   This was too fast.   "Have you been bitten by a poisonous insect?" Jiang Yan took a deep breath, and then said:   "Do you have any symptoms of discomfort? Let me see the anti-inflammatory medicine in my backpack, will it work?"   Ye Qing glanced at her, gave her a comforting look, and said:   "I'm fine, just looking scary. Let's move forward normally."   Su Dai looked at the blood bag with some fear, and said:   "Xiao Ye, no, we have to take a look first. If Jiang Yan has medicine to treat it, then treat it. When it gets heavier later, won't you feel more uncomfortable? Maybe it will be contagious or something."   When Ye Qing heard it, he said firmly: "Sister Dai, don't worry, it's not contagious."   Several people looked at him in unison, "Why?"   "Yes, why? Do you know what poison you were poisoned by?"   Ye Qing's eyes darkened, he took a deep breath, and said:   "Because this is the sequelae of the SNP laboratory experiment subject after undergoing genetic evolution and mutation." (End of this chapter)