There's no one around to talk, but it's not quiet.

In the distance of the city, you can also hear the sound waves and heat waves, as well as the sound of explosions and screams from time to time. All this came out from afar, forming a sharp contrast with the depression and silence in the open space under the high wall.

Lu Xin stood quietly, feeling everything around him.

Quiet, quiet

Then he almost fell asleep.

……

……

"There must be something wrong..."

Lu Xin thought silently that he must be a normal, healthy and ordinary person.

Therefore, these people can be affected, they must be able to feel.

Just like before, when I entered the cafe, the waiter tried to pollute himself. Later, when I dealt with 072 pollution source, I could also feel that kind of fear. Even when dealing with rose pollution, I can feel the influence of that rose, but I can resist it. Therefore, Lu Xin decided to use this method to find out the source of pollution.

Lu Xin is not just talking about the fact that he is an ordinary person, but has been looking for evidence to prove it.

Now this is also a proof

But my legs are sore, but I don't feel anything. That's why

Lu Xin suddenly realized something, opened his eyes and looked to his side.

Sister is squatting around, looking up at him, that look, seems to be looking at a fool.

Lu Xin pinched the earphone and whispered to his sister, "maybe it's because you're around me. You leave me for a while."

My sister looked at him more like a fool: "I'm gone, aren't you afraid of being eaten?"

Lu Xin thought about it and said, "you can't be too far away from me. When you see that it's not right, come and help me quickly..."

My sister's eyes suddenly became a little resentful.

Lu Xin had no choice but to show his sister a look of some flattery and love.

Sister angry way: "that you want to compensate me!"

Lu Xin frowned and said, "I've given you all the chocolates I hid..."

Sister looked at him suspiciously: "you must have hidden some."

Lu Xin shook his head and said sincerely, "no, I really gave it to you."

"Candy is not enough!"

My sister believed him, but she was not reconciled. After thinking about it, her eyes looked a little proud: "I also want toys."

As he said it, he drew: "super large, crying, crying, living... Toys!"

Lu Xin seriously thought about it, and felt that he could not coax his sister at this time, so he nodded and said, "I'll think about it!"

"Really?"

My sister looked at him awkwardly for a moment.

"Really

Lu Xin said seriously, "but you have to watch closely. When you see something wrong, come here quickly, or no one will buy you toys."

My sister was still surrounded by Lu Xin and nodded contentedly.

Then she turned her head three times in one step and crawled quietly towards the distance. She soon disappeared into the weeping forest.

……

……

Lu Xin breathed softly and stood in the crowd again.

Efforts to empty themselves, quietly feel everything around.

At this time, he could hear the sound of the night wind passing over his head, the cry from the far city, the high-volume broadcast warning, the slow swing of the waist high grass under his feet, or the occasional explosion of a grass grain.

Because there are people around, and they are crying quietly.

So Lu Xin can feel that there is a huge and heavy sadness, which is shrouded in the wasteland under the high wall.

If the great sadness is the sea, he is a drop of water, slowly integrated into it, become one of them.

Then when he began to fall into this sad mood, he suddenly heard

... cry!

A faint, little boy's thin cry.

The cry was so thin and low that I could hardly hear it if I didn't listen carefully. It was like a soft silk thread that went into my ears.

When hearing the cry, Lu Xin even seems to see a little boy in the corner.

He was thin and small, facing the wall, weeping in a low voice.

Dare not loud, as if he is afraid of what will disturb, can only be so repressed, careful tears.

The cry seems to have some kind of appeal, which makes people feel endless sadness.

Lu Xin's heart, as if to open a gap, a strong sadness, suddenly poured out.

He seemed to experience countless torments in an instant.

He saw countless times the silver white surgery in their sober circumstances, cut in their own body.

Also countless times all day long sitting in a dark room without any light.

He had countless friends who appeared and were pulled away.

Behind the glass wall, there are countless adults with strange smiles, observing themselves.

……

……

He is afraid of loneliness, afraid of darkness, looking forward to people.

But he also knew that whenever someone appeared, it was the time to hurt him.

Therefore, he was enveloped by this kind of fear and sad mood all day long.

Can only curl up in the corner of the wall, dare not loud, thin, quietly, crying.

……

……

"Ouch..."

Lu Xin suddenly opened her eyes and looked down. She saw her sister biting her thigh.

Seeing Lu Xin looking at him, his sister loosened her mouth and laughed strangely: "brother, you are crying..."

Lu Xin put out his hand to wipe the corners of his eyes, and his fingertips were moist.

"No!"

He shook his head. Then he took a deep breath and looked away.

He knows what the pollution is about.

This is a kind of pollution spread by sound. When you hear this cry, you will become a member of the crying group.

This reminds him of a dead man who was found alone in the mine cave community yesterday.

Special pollution source no.072, Wang Chu.

……

……

"I have found traces of pollution..."

As he spoke to the channel, he strode forward in a dignified voice: "get ready."

In the channel, Han Bing's voice suddenly became nervous: "what type?"

"It's crying..."

Lu Xin said to the channel in a low voice: "the cry of a little boy is very low. It's hard to find it, but as long as he hears that cry, he will fall into a very sad mood and hallucinate. He suspects that these people are affected in this way."

"I estimate that the pollution source should be a little boy hiding in the crowd..."

“……”

Han Bing said: "I understand. We are reporting it to the investigation team."

"Don't let the investigation team in yet..."

"They may not be able to resist," Lu said in a low voice with a slight pause

……

……

When he heard the cry, Lu Xin already knew the transmission mode of the pollution source.

Because pollution is transmitted through this kind of weeping, it is difficult to detect with psychometric instruments.

And this cry is very weak, in this chaotic city, was also drowned by the noise around.

Even the members of the investigation team did not dare to go too deep into the crowd when they came to investigate. In addition, in order to prevent pollution, they were all wearing thick protective clothing, and their hearing was affected. Therefore, the possibility of finding this pollution source was very small.

If they take off their helmets, they are more likely to be directly contaminated by crying and become a "weeper".

Step by step, the arrangement is so delicate and ingenious.

Lu Xin thinks that this pollution source should have been carefully designed.