The sky darkened and the sun began to set.

The search in Taihang Mountains has been going on for more than four hours.

But nothing was found.

Everyone's originally high spirits began to drop due to fatigue.

“Brother Zhang, is it possible that the area circled by Team Leader Shen is not right?”

A young member of Jiang Daoqing's team looked at Zhang Song and asked.

Zhang Song frowned slightly:

“It’s hard to say.

Although there is a big difference between Team Leader Shen’s and my dissection reports.

But his entire dissection process is actually very professional.

The only thing I haven't seen is the core mathematical model, so I don't know which algorithm is more advanced and accurate, yours or mine.

Therefore, it is hard to say whether there are any problems in the area identified by Team Leader Shen. "

actually!

Zhang Song was also very curious whether Shen Ting could pinpoint the correct area where the suspect was active.

He is still very confident in his ability to map geography.

But from the previous search, no clues were found, so there must be a problem.

Before this, Chen Ting had never demonstrated any ability in geographical profiling.

It seems that he does not have a corresponding professional background.

Therefore, Zhang Song actually didn't quite believe that the area circled by Shen Ting would be more accurate than his.

“Now it depends on whether we can find any clues related to the case within the area circled by Shen Ting.”

Zhang Song turned his head and observed Shen Ting in the distance.

I saw that he didn't know whether it was because he lacked confidence, but he didn't seem to be searching seriously. Most of the time, he was looking down at his phone.

The moderate rain gradually began to lighten up.

But it was getting noticeably darker.

Shen Ting's eyes also moved away from the phone, looking at the almost dark sky, frowning and said:

"It's getting late, there won't be any results for today.

Let's gather everyone and go back to rest for a night. Let the night search team come over and we'll continue the search tomorrow during the day!"

"Okay, I'll let everyone know right away!"

Xiong Beibei said this, took out the police car and was about to issue a notice.

However, Xu Xinyi, who was wearing headphones and staring at the screen at hand while operating the drone, suddenly said in surprise:

"Wait a minute, I seem to have discovered something."

The police officers of the task force all looked at her in surprise:

"Any findings?"

"What did you find?"

"Have you really found the place where the bodies were dumped?"

Xu Xinyi shook his head:

“It’s hard to say whether it’s a place where corpses are dumped.

But there are some anomalies.”

Shen Ting had already moved closer to Xu Xinyi and was looking at the tablet screen in her hand.

But the images sent back by the drone showed leaves that had begun to turn yellow or red.

The clarity is so high that even the raindrops on the leaves are clearly visible.

But that’s it, there are absolutely no clues related to the case.

Xiong Beibei, who also came over to check, stared again and again, but could not see anything unusual in the picture:

"Comrade Xiao Xu, there's nothing here!

Are you dazzled?

Xu Xinyi said calmly:

“There’s definitely nothing unusual in the picture.

What’s unusual is the sound.”

She took off her headphones and handed them to each of them.

sound?

The two of them put on their headphones, puzzled.

In an instant, the confusion on their faces became more obvious.

Because the most obvious sound coming from the headphones is the sound of raindrops hitting the leaves.

Other than that, there was the sound of the wind and the occasional bird call.

It seems that there is nothing abnormal?

The two were confused and were about to ask Xu Xinyi again what was going on when suddenly, a "click" sound that was faintly different from other sounds came from the headphones.

This sound is very special.

The rhythm is completely different from that of raindrops hitting leaves, and the intervals between them are much longer.

Moreover, it is more like the sound of water dripping onto metal, much crisper.

The sound seems to come from a closed or semi-closed space and has a special texture.

Chen Ting: "This voice is wrong!"

Xiong Beibei: "Comrade Xiao Xu, when did you grow dog ears?

If it weren't for your reminder, who would be able to distinguish this sound?"

This is the truth!

When using a drone, most people carefully watch the images transmitted back by the camera.

Unless it is a very obvious abnormal sound, it is difficult to detect special sounds because the mind is highly concentrated on the field of vision.

Xu Xinyi said:

"I just flew over here and confirmed that the most obvious location of the abnormal sound is here.

However, the cliffs here are very high.

There were a lot of trees on the mountain wall, blocking the view, making it impossible to see what was going on inside or find the source of the sound.

I suggest we get someone to rappel down behind the tree and see what's going on."

Shen Ting looked up at where the drone was hovering.

They are now located on the eastern side of Taihang Mountains.

The cliffs here are almost all fault cliffs, with cross-cutting valleys below, and the relative height difference is huge.

Simply put, many cliffs protrude straight up and down from the earth.

It is very different from the common undulating mountains.

The steepness naturally increases the difficulty of climbing.

In addition, it is raining now and the cliff is three or four hundred meters high. Climbing up from the bottom of the cliff is indeed too difficult.

In contrast, it would be much easier to rappel from top to bottom.

Shen Ting thought for a moment and said:

“I heard that unusual sound, it seemed to come from the cavity.

If there is a natural cliff cave nearby, it would indeed be a good place for the murderer to hide or conceal the body.

Further investigation is still necessary.”

Chen Ting called the professional rappelling team members in the team, discussed and determined the rappelling location, and then climbed up the side of the cliff to the top of the mountain.

Because we were carrying all the equipment, it took us nearly two hours just to climb the mountain.

It's completely dark!

The rain suddenly got heavier!

The drone was hovering where the unusual sound could no longer be heard, as it was completely obscured by the sound of rain hitting the leaves.

During this period, the leaders of the other three teams also contacted Shen Ting and told him that the search conditions were too poor and whether he should suspend it and continue tomorrow.

Shen Ting naturally agreed and informed them of the situation on his side.

Found any unusual sounds?

But not sure where the exception is coming from?

Song Huaimin, Jiang Daoqing, and Zhang Song, all rushed over here in surprise.

at the same time!

Four professional team members began to rappel.

One of the most professional team members was exploring the way at the bottom.

The other three were on guard against unexpected situations such as attacks by the suspect.

The source of the abnormal sound was more than a hundred meters away from the top of the mountain.

In addition, there are relatively few landing points and the speed is very slow.

However, when they had only rappelled about 80 meters, the leading team member said in surprise:

“Hey, there really is a cliff cave.

About twenty meters below, there is a vague cave entrance, completely hidden by a large tree.

From my angle, I can barely see a little bit..."