Cheng Ming didn't know how long he walked with the two little guys, the faint light of the candles, and the pitch-black air-raid shelter with no reference, made it impossible for them to distinguish the specific distance, so they could only walk along the air-raid shelter.

Just as the candle was about to burn out, a half-hidden iron door suddenly appeared in the bomb shelter.

Cheng Ming motioned for the two little guys to stop, and then took out the small flashlight in the bag, Cheng Ming didn't pay much attention to it when Lin Fan held it before, but when he was cooking before, Cheng Ming took a closer look at the small flashlight, and found that although this flashlight was small, it was a strong outdoor flashlight, and at this time it was dark in front, and the light of the candle could no longer see the situation too far ahead, so Cheng Ming had to take out the small strong light flashlight to observe the surrounding environment.

Cheng Ming took a flashlight to push open the iron door and walked in carefully, took a picture around, and found that behind the door is a circular underground building, the diameter of the entire circular space is about 15~16 meters, the height is nearly 4 meters, the area is quite large, there are many doors around, behind the door seems to be some rooms that do not know what to do, and the center of this hall is a platform, on which a lot of paper and some sundries are scattered.

Cheng Ming saw that there was no danger in this hall, so he beckoned the two little guys to come in, after walking such a long way, the two little guys were also tired, Cheng Ming asked them to find a place to sit down and rest for a while, and he came to the front of the platform, wanting to see if he could find some information about this place from above.

The paper on the platform is very messy, I think the people here are in a hurry, and some of the information that has been dropped, Cheng Ming looked at it for a while, and gave up helplessly, it was full of some symbols and calculation formulas that he couldn't understand, Cheng Ming thought that he was not a scientist, and he couldn't study these, so he chose to give up.

Just as he was about to leave the platform and go to see the two little guys, he suddenly saw that there seemed to be a floor plan in the corner of the platform, because Cheng Ming had been designing before, so he often did it for architectural plans and the like, so he saw this at a glance.

Cheng Ming picked up the piece of paper and looked at it, and sighed in his heart, it turned out that this was a military research institute before, codenamed 0186A, he didn't know what this number meant, but he was surprised that this research institute had been hiding in this poor countryside for so many years, no one knew, and no one found out about the air-raid shelter before it was inadvertently broken, you know, Cheng Ming has lived in this city for nearly 20 years.

It's just that Cheng Ming didn't know that after the air-raid shelter was broken during the road construction, there were always people guarding not far from the research institute, and at that time, only children would be curious to play, and with the physical strength and courage of children, they couldn't go far, so no one found out.

Cheng Ming is carefully looking at this plan, he got a lot of useful things from it, this research institute was built 20 meters underground, it was established in the 60s, at that time it was only built on the basis of the original air-raid shelter, and the construction personnel at that time were all carried out by the army, and the secrecy was very strong.

At the same time, due to research needs, a lot of war materials are also stored here, such as food, water, clothing, and some research materials, which are placed in the rooms around the hall.

Cheng Ming was happy when he saw this, this place is so deep from the ground, there is no need to worry about safety, as for food, there should be left, but I don't know how much is left.

Cheng Ming took the floor plan and was about to go to each room to take a look, when suddenly the lights around the hall and at the top turned on, and the sudden light made Cheng Ming's heart tighten, and he hurriedly looked at the place where the two little guys were resting.

At this time, Lin Fan was holding one of Ke'er's hands, while Ke'er's other hand was pressing on a switch and was looking at Chen Ming with a blank expression, his eyes were full of confusion.

Cheng Ming was not in the mood to think about why the lights were on at this time, where the electricity made them light up, but he just rushed to the side of the two little guys and looked around vigilantly, for fear that something terrible would suddenly appear.

It's just that after a long time, it's still so quiet, as if nothing has happened.

"Dad, I'm sorry, I don't know what it is, I just want to touch it, and..." Ke'er's timid voice came from behind Cheng Ming.

Cheng Ming felt that there was no danger around him and put his mind at ease, turned around and squatted down, took Ke'er and Lin Fan's hands and said.

"Don't do this next time, don't touch things you don't know, you know?"

"Got it." The two little ones nodded hurriedly, in fact, they themselves were frightened, although they were not very old, but they had already experienced a lot of things, so their hearts were actually much more mature than their actual age.

"Uncle, where is this place and why are there lights?"

Cheng Ming didn't know how to answer, and thought for a long time before saying.

"Uncle doesn't know where this is, you can look around, but you can't get out of this hall, and you can't mess with the things here, you know?"

The two little guys nodded, and walked around the hall hand in hand, while Cheng Ming took the floor plan and checked each room.

Cheng Ming first came to the food storage room, which was full of all kinds of food, including canned food, compressed biscuits, etc., Cheng Ming looked at the production dates again, both in 2019 and 2020, like this kind of military food, the shelf life is generally relatively long, and from this production date, Cheng Ming also guessed that the personnel here should be evacuated urgently after the catastrophe came.

Cheng Ming happily calculated, it is no problem to eat the food here for 2~3 years, as for the vegetables and meat in the cold storage next to it, it has long been rotten and spoiled, turning into piles of long-haired garbage.

Cheng Ming left the food pantry and came to the utility room, walked in, and the scene in front of him made Cheng Ming even more happy, there were all kinds of clothes and bedding inside, thin and thick, and they were all new, and there were many commonly used medicines.

Cheng Ming felt that God was looking at him too bitterly and gave him such a large fortune, of course, in this era.

As for the other rooms, there are 4 rooms that are used to live in people, a laboratory, which has been smashed into shape, and an ammunition depot, which is unfortunately empty, and a communication room, but the equipment inside Cheng Ming does not know how to use it.

When Cheng Ming was inspecting room by room, Lin Fan pulled Ke'er and ran over.

"Uncle, we found a notebook for you." Lin Fan said and handed a very thick notebook to Cheng Ming.

Cheng Ming took the notebook and looked through a few pages, and found that this was the diary of a researcher named Wu Junlin, who may have been in a hurry and lost this diary here.

Just when Cheng Ming wanted to read it carefully, he heard a soft sound of grunting~~~.

Cheng Ming looked down at the two little guys, and Lin Fan touched his stomach with a red face. Obviously, the sound came from Lin Fan's stomach.

After walking such a long way, and the spirit is so nervous, for children, what they have eaten before has long been digested.

Cheng Ming raised his hand and looked at his watch, touched Lin Fan's little head, and said with a smile, Let's have a good meal tonight, so that you can eat until you are full. After that, he went to the pantry to get some food, and then went to the kitchen to cook.

The two children cheered happily in the hall, because this place was far from the ground, so Cheng Ming was not afraid of being discovered by alien creatures, so he did not stop the two little guys.

In this institute, there is a kitchen, although it is not big, but it has all kinds of pots and pans. And there is also an induction cooker, and at the same time, Cheng Ming was pleasantly surprised to find that there was water in the faucet here, which made Cheng Ming extremely incomparable.

This kitchen should have been used by the previous staff, although Cheng Ming didn't know why there was electricity here, but since it was safe, since there was no danger, let it be.