In the 12 huge rooms, Lin Yue carefully looked around.

The rancid smell has disappeared quite a bit, and the nose has gotten used to it a bit.

Lin Yue searched the ground for any clues.

Soon, he spotted two circular patterns on the ground, which were undoubtedly the entrances to the secret space.

"As long as you open this, then the question just now will be answered."

Lin Yue looked at the corpses all over the ground again.

There are 104 corpses of lizardmen, and 45 corpses of beggars.

The 104 corpses of the Lizardmen, along with the 27 corpses of the Lizardmen he found outside, and the corpses of the three turtle crocodiles, combined with the total of 131 chests he had obtained.

But the treasure chests here are gone, and even the points of light in the storage space that the beggars should be able to leave behind are gone.

At that time, the cave collapsed, and the lizards and beggars here must have blocked the gate with countless stones, and in the darkness and panic, they quickly ran out of oxygen, and finally all died.

The current situation is very strange.

The treasure chests and storage space in the room are gone, and this is undoubtedly something that should not happen.

Unless......

"Did any beggars survive and take away all the treasure chests and storage space? But at that time, the lack of oxygen was terrible, and the only escape route should be ......"

He walked to the center of the two circles.

On one of the pieces, there happened to be the remains of a lizardman.

Just about.

Lin Yue seemed to think of something.

Towing the wreckage away, Lin Yue placed a piece of stone on it.

A sound of "Gragra" sounded, Lin Yue looked at the location where the sound came from, and found that the sound did not come from his feet.

And that was the passage he had when he came from C2!

Lin Yue looked at the corpse of the lizardman just now, and seemed to have some more answers to the thoughts in his heart.

At this time, all of a sudden, the system made a sound!

[Congratulations, you have broken through the underground ruins C area!] 】

Lin Yue opened the system panel and saw the announcement above.

[World Announcement, World Announcement! ] 】

[Detected that a survivor has unlocked the full map of Underground Ruins Area C, and a survivor has been detected to have unlocked the full map of Underground Ruins Area C!] 】

[This is the first time that a survivor has unlocked the underground ruins partition map, and the system will issue the first reward to this survivor according to the rules!] 】

[The reward this time is, Platinum Treasure Chest X1!] 】

The platinum chest is here again.

A burst of white light flashed, and there was an extra platinum treasure chest on the ground, and Lin Yue took it into his pocket.

However, this did not disrupt his thoughts, but gave him a clearer picture of the whole event.

It can even be said that he has already thought of the answer to this mystery.

Lin Yue circled here again, and with the help of the light of the flashlight, after taking pictures of the murals on the wall, he was about to go back, but a sound of Gragra sounded, and the stone door that came from it was closed again.

Lin Yue was not flustered.

He went straight to the two circles, pressed a stone against them again, and the door opened again.

Lin Yue understood, this thing was originally going to be closed again after a certain amount of time, and it needed to be turned on again.

This reaffirmed his thoughts this time.

After returning to the C2 area, and looking at the passage that a fork in the C2 area led to another area that was obviously leading to another area, Lin Yue used iron to make a wall to block that side.

After that, he took Xiao Meng and the Xiaoice lizards and returned to the shelter.

"Quack ......" Xiao Bai and Xiao Liuzi and Red Line were waiting for them to return at the door, but the heavy corpse stench made them almost faint.

"There are some things inside, Xiaobai, you wait a while, I'll take them to wash them properly."

Lin Yue used a thick iron wall to block the ancient door of the underground ruins, and took Xiao Meng and the other Xiaoice lizards directly to the bathroom.

After using more shower gel than expected, Lin Yue finally reduced the smell of corpses on his body, Xiao Meng, and Xiaoice lizards.

I have to say that the smell is quite good, especially the hair stained, which makes Lin Yue want to shave his hair directly.

In the end, there was really no way, Lin Yue chose to use the remaining half of the bottle, and cleaned himself and Xiao Meng again, although there was still a little bit of taste, but it was still much better than before.

After washing, Lin Yue was refreshed, and his mind was clearer and calmer.

After drying his hair, Lin Yue came to the extremely cool, even a little cold living room.

Sitting on the comfortable sofa, watching Xiao Bai and the others vigorously revolving around Xiao Meng, Lin Yue took out a pen that he hadn't used for a long time, and took out the diary that he had taken out of the deserted shelter before.

A good memory is not as good as a bad pen, of course, when thinking, if there is a pen and a book, then it can make the thinking circuit clearer.

Turning over the pages full of handwriting one by one, Lin Yue took the pen and wrote a line of words on the paper.

When you rule out all the impossible, no matter how unbelievable the rest is, that's the truth.

This is a famous quote from Sherlock Holmes.

When Lin Yue was in middle school, he happened to see this reasoning in the school library, and he took this famous quote as one of his beliefs.

And now, this creed has once again reached a final conclusion on this matter.

It is very likely that the truth has been revealed.

On that day, he ignited the gasoline barrel with an incendiary arrow, blowing up the intersection and damaging the main structure of the entire underground ruins of Sector C, after which Sector C began to collapse and eventually collapse completely.

The lack of oxygen caused by the collapse soon caused the lizards and beggars he had not yet killed in Area C, as well as the turtle crocodile, to die one after another, and also brought him 128 copper treasure chests, 2 silver treasure chests, and 4 gold treasure chests.

Among the 4 gold treasure chests, 3 are turtle crocodiles, so let's not talk about them for the time being.

Lin Yue drew a circle of the three golden treasure chests in this book and marked the word turtle crocodile.

128 Bronze Chests, 2 Silver Chests, and 1 Gold Chest, which was supposed to be what he was supposed to get when he came to Underground Ruins Area C this time.

However, he only received 25 Bronze Chests, as well as 2 Silver Chests. The remaining 102 Bronze Chests, 1 Silver Chest and 1 Gold Chest are missing.

At the same time, there is also the storage space left by the corpses of the beggars.

So, here's the problem.

Storage space aside, those treasure chests aren't going to disappear casually.

The proof is that he managed to recover the treasure chests left by the 27 lizardmen buried under the stones, and this explanation is impossible.

Chests can't disappear on their own, and the smell of the secret passage that comes out of it shows that Sector C hasn't been opened since the last time it collapsed.

How did the rest of the treasure chest, and the storage space, disappear?

Lin Yue drew a circle on it, and an arrow extended out of the circle.

At the end of the arrow, there is a line of words.

Someone took it away.

There is only one answer.

So, let's assume that the situation was at the time.

The huge shock caused by the explosion soon triggered a strong chain reaction, and the passage was flooded by huge stones for a while, and the rubble quickly blocked the exit of the huge room, and directly killed 27 lizardmen and 3 turtle crocodiles, and at the same time, it also made a large number of lizardmen and beggars in the huge room at that time directly trapped in it.

The oxygen was quickly depleted, the torches on the walls were extinguished one by one, and in the darkness, the lizards and beggars who did not know what was happening also panicked, which exacerbated the oxygen consumption, and they struggled to fall one by one, and finally each one died of lack of oxygen.

Except, one person.

This person used some special method, or luckily did not suffocate directly, and this person opened his eyes again, and found that there were treasure chests and points of light in the storage space all over the place, and quickly harvested these things, and then dragged the body of a lizardman to the circular pattern on the ground, opened the secret passage, and then walked out of the C2 area and successfully survived.

After a certain amount of time, the mechanism was reopened, and the secret passage was closed again, and the place was completely closed.

Only a few bugs or something came out of the crevices in the rocks and found a large number of corpses, and multiplied here, so that the flesh of the corpses here was quickly eaten, leaving only the bones.

Lin Yue wrote down his inferences in his diary.

If there is one explanation that can solve this mystery once and for all, it seems to be the only one.

Someone is still alive and has stolen most of his treasure chests and all of his storage space.

Methods used...... If you don't have oxygen, you will definitely not be able to cover your nose and have the time to pick up any treasure chests or storage space spots, and if you don't breathe, you won't be able to do this with the longest breath-holding record.

Not to mention the need to search for these things in the dark.

So, this person should have had an oxygen tank or a respirator or something like that, and he was lucky enough to survive with this.

After picking up the treasure chest and storage space, the person directly opened the door of the C2 area and escaped.

This is probably the most plausible explanation.

Lin Yue put down the pen.

This man is real, and he's a threat to him.

Can you imagine what this person would think in his heart other than ecstasy after seeing the treasure chests around each lizardman and pocketing them?

Isn't the explosion rate of the treasure chest a bit outrageous?

If it were him, Lin Yue felt that he would definitely think so, after all, this was the truth.

The explosion rate of ordinary treasure chests, if analyzed from the chat records in the group and the world channel, is really not much, even if the European Emperor has to kill six or seven mutant creatures to be able to explode one.

For 104 lizardmen's corpses, there are 104 treasure chests, including silver chests and gold treasure chests......

Anyone would think about it.

Moreover, the matter of "100% explosion rate" will soon be taken seriously.

The ability to explode treasure chests 100% is impossible for others to have, otherwise he will not be the only one in the top 100 in the world rankings, but will compete with another person.

Lin Yue believed that this surviving beggar had also guessed this.

I'm afraid that some related actions will be taken because of this.

Lin Yue looked at the diary again, what was written on it was the inference he had just made, although it was basically confirmed and affirmed the existence of this beggar, but there was no definite evidence - there was a beggar who came to the door to question, then, this matter could not be completely confirmed.

Looking at the diary written by the previous owner of this diary, Lin Yue once again remembered a mystery inside.

Dupin is still alive, after being killed by him.

Could it be that it wasn't Du Ping who would have been killed, or was it really Du Ping, in fact, Du Ping was another one in the diary?

It doesn't seem to be possible, after all, it is true that after he killed Du Ping, there is really no such thing in the records of that period of time.

But...... Who knows.

Lin Yue closed the diary again, and then stood up.

Today has just begun, and although I have already broken through two underground ruins, obtained two platinum chests and a bunch of other treasure chests, I don't have time to open them now.

Walking out of the cool and comfortable house, Lin Yue faced the fierce enough sun to put the already hot but charged robot dogs on the ground into the storage space.

However, when he returned to the house, he remembered one more thing.

Wait, wouldn't it be interesting to install a bazooka RPG on a robot dog?

As soon as he said it, Lin Yue came to the basement and took out the high-precision research workbench and the bazooka RPG he obtained before, and then broke down the bazooka RPG into a design drawing.

Lin Yue was surprised to find that all the things required on the design drawings were actually based on alloys and were not complicated.

Moreover, I don't know if it's a bug, when these weapons are made, even if they don't contain the raw materials of ammunition, they will have bullets in them, whether it is the previous M19, or the later Trolls and MP5 submachine guns.

And it's the same with RPGs now.

The difference is that the RPG has only one warhead.

However, it is enough, the power of this thing, there is no need to go into details, and the deterrent power is enough.

But the disadvantage is that it is a little dangerous, and Lin Yue doesn't want to play with it personally.

Lin Yue took out a robot dog, and leaned on the glittering bazooka RPG he had made to lean on it.

Soon, the sound of the system arrived.

[Upgrade the multi-functional defense robot to a high-destructive assault multi-function defense robot (load bazooka), which requires a universal upgrade design diagram X1]

Oh, I didn't want an intermediate universal upgrade blueprint, that's not bad.

Lin Yue immediately used a universal upgrade design drawing, and soon the form of the robot dog also changed!

"Good guy, the bazooka is directly on the back, who doesn't panic."

He found that the bazooka was also aimed with infrared, and the system seemed to be very simple to operate, and the minimum threshold when launching the bazooka could be selected.

"Then, if you find that the number of enemies exceeds 100, you will not attack with an M19 pistol or an MP5 submachine gun, and start the bazooka."

He was so satisfied to see that his robot dog had a new change, and he couldn't help but imagine in his heart that if the beggars saw such a robot dog appear, then ......

Wait, why not?

Lin Yue loaded all the robot dogs into the bazooka, and at the same time gave birth to a crazy idea.

Wouldn't it be very interesting to take these tough robot dogs directly to attack the saltpeter mine?