In the dark, the flashlight in Yu Chen's hand was very eye-catching, because there was no other light source, so Wu Yu could basically read the distance between Yu Chen and himself.

However, Wu Yu didn't dare to speed up his pace, first, he wasn't sure what was going on in front of him, why the shadow moving on Yu Chen's side didn't have a head. The second is that this place is dark, although Wu Yu's own mobile phone also has a flashlight function, but in order to save power and find Yu Chen in the dark, Wu Yu didn't turn it on, so Wu Yu's feet couldn't see clearly, so Wu Yu still kept a certain distance from Yu Chen.

Yu Chen's movement speed in front of him was still very fast at first, but gradually Wu Yu found that the speed of the figure in front of him was gradually slowing down, as if he was deliberately waiting for him.

The tentative Wu Yu shouted to the front: "Brother, wait for me for a while, what are you doing in such a hurry?" ”

Wu Yu saw that the figure in front of him was obviously stunned, but he still maintained the same speed, the light of the flashlight swayed obviously in his hand, and the light and shadow seemed to be illuminated in front of him, as if he came into contact with something reflective, and the shadow was projected behind Yu Chen this time.

It was still the shadow without a head, Wu Yu didn't dare to chase after it easily, and observed Yu Chen in front of him while keeping a distance, obviously the height of this passage was not very high, about two meters. However, the walls and roof of the shed are made of cement-poured stone slabs, which are very rough, and there should not be such obvious reflections and shadows.

Fortunately, Wu Yu was not bad in physics when he was in school, and through the distance between Yu Chen and himself in front of him, plus the angle of the strange shadow on the ground, he made a simple calculation. Suppose there is a light source in front of Yu Chen, or there is a reflective object in front of him, reflecting the light in Yu Chen's hand, then the distance between the reflective point or light source and Yu Chen should be within ten meters.

Although Yu Chen and Wu Yu use the same mobile phone, they are both domestic knockoffs, but the brightness of the flashlight is not bad, such brightness has completely reached the level of a small LED flashlight, although the wall of this channel is not conducive to the reflection of light, but it will not be too difficult to irradiate more than ten meters and then reflect back.

Yu Chen's figure in front of him suddenly accelerated violently, Wu Yu didn't react for a while, and was suddenly pulled away by Yu Chen A lot of distance, and when Wu Yu reacted, there was only a small point of light left in the flashlight in front of him.

The darkness suddenly returned to the surroundings, Wu Yu hurriedly quickened the pace under his feet, and at the same time took out his mobile phone and quickly turned on the flashlight.

In such an environment, if you are separated from Yu Chen, then it will be troublesome to find Yu Chen, although Wu Yu and Yu Chen said just now that they want to draw marks, but look at the surrounding environment, even if Yu Chen really has the ability to draw marks on the cement slab, under such light conditions, he will definitely not be able to find it.

While speeding up his pace, Wu Yu looked at the only light in the distance, which was the only focus that Wu Yu could find in the dark, in other words, if the light in front of him suddenly turned off or disappeared, Wu Yu would probably lose focus and not find the direction of the target.

Running and running, Wu Yu felt that something was wrong, the light in front of him always kept a certain distance from him, in other words, no matter whether he accelerated or decelerated, the light point in front of him was always so big, not increasing or decreasing, and it became extremely stable, and there was no shaking like before.

Gradually, because of his physical strength, he participated in a group fight again, and Wu Yu found that his physical strength could no longer keep up, so he had to slowly slow down.

This side slowed down, and Wu Yu's brain began to think, as the saying goes, people who don't think are the same kind of creatures as pigs. After making sure that he couldn't catch up with Yu Chen in front, Wu Yu immediately began to ponder where the key node of the problem was.

Assuming that he is Yu Chen, then it is very likely that he suddenly accelerated away because he saw something, maybe it was related to the case, maybe it was something he thought was more interesting, so as to explain why Tong Yuchen left.

But judging from the headless shadow just now and Yu Chen's slowing down, he must have noticed something strange in his own right, or he was afraid that the people behind him would not be able to keep up, so he slowed down, which can barely be explained.

Let's not talk about the headless shadow, just Yu Chen accelerated again, and if it was himself, he must have found or seen something that was exciting enough, assuming that Yu Chen in front saw someone shooting a certain color. Love movie, then can explain his acceleration.

But the later point of light remained stable, and he always kept a certain distance from himself, he was faster than the other party, and he was slow and the other party was slow, which could not be explained.

If Yu Chen wanted to get rid of himself, then with his skills and speed, it couldn't be easier. And Yu Chen didn't need to bring himself here at all, it should be easier to simply not answer his phone calls when he disappeared.

Thinking of this, Wu Yu stopped against the wall next to him, and simply glanced at the walls on both sides with a flashlight, either there was a problem here, or Yu Chen had some purpose.

Looking carefully, the walls on both sides are still the same, still stacked with cement slabs, and the gaps between the cement slabs and the cement slabs are also sealed by cement.

The air in this passage seems to be circulating, indicating that there must be an exit from this place, so Wu Yu is not afraid that he will be trapped here.

Stretched out his hand and touched the cement wall, the cold feeling suddenly made Wu Yu's mind become much clearer, he had been focusing on the light in Yu Chen's hand before, so he completely ignored the position he was in.

Such a passage is obviously not an emergency passage, and it should not be connected to a place like an air-raid shelter, although the building system is not very clear, but at this time Wu Yu simply guessed.

For such a large gymnasium, if such a passage is built in parallel under the entrance passage, the greatest use should be a branch line of the drainage system.

This can avoid flooding and other situations such as flooding, and can protect the safety of the people in the gymnasium above.

However, judging from the walls and ground on both sides, although there is always a cold wind here, it is very dry, and there is no trace of water, not even any traces of water that has ever flowed.

Then the possibility of this is a branch of the drainage system is reduced, but the people who built this gymnasium will definitely not be so boring to build this passage, from the perspective of the tightness of the passage, although this construction mode can not see its sturdiness, but at least the sealing can be seen, the construction of this passage must require a lot of manpower and material resources, the school will definitely not spend money on this place for no reason.

Since the accident at his own home, Wu Yu may not be able to figure out his head at first, but with the in-depth study with Yu Chen, Wu Yu gradually learned the way to look at problems.

Anyone does everything for a purpose, and maybe those purposes are temporarily incomprehensible to others, but that doesn't mean that the purpose doesn't exist. It's like Dong Shuwen attacking Wu Yu's child, at the beginning, Wu Yu thought that Dong Shuwen either had a problem in his heart, or was carrying out some kind of ancient weird sacrifice.

But when Dong Shuwen stuffed the note to Wu Yu, Wu Yu knew that those superficial things were just some things that Dong Shuwen used to divert the attention of others, and behind that incident, there was a deeper reason.

Since there is a problem with the construction of this place, what the martial arts club is doing here must be in line with the purpose of the builders, Wu Yu doesn't believe that there is any coincidence, but it makes the people of the martial arts club think of it.

Wu Yu, who was thinking nonsense here, always felt that his train of thought was correct, but the light spot not far away seemed to be gradually brightening, and from the distance of the passage, it seemed that the light was gradually approaching Wu Yu.

Wu Yu began to nervous inexplicably, because he was not sure if the light was from Yu Chen's flashlight, but fortunately, there was still a distance between the light and himself, Wu Yu quickly turned off his flashlight, and the surrounding area suddenly returned to darkness, and in the darkness, only the light in front of Wu Yu was gradually brightening.

This is the method that Wu Yu learned from a memoir of a border guard, when standing guard at night, if he finds a strange light in the dark, then the first time is not to walk in that direction, but to turn off any light sources that may expose him. Only by keeping yourself in the dark can you better observe each other, and at the same time, you can make yourself safer without revealing your position.

Wu Yu held his breath, because the light had gradually formed a beam, indicating that it should be a flashlight or something like that, but the color of the beam seemed to be a little different.

This kind of domestic copycat machine, the installed LED bulbs are all white light, Wu Yu's mobile phone and Yu Chen's are bought together, because Yu Chen's mobile phone was thrown in the pool outside the door of Huxian Hall, Wu Yu also felt that his mobile phone was of little use when he encountered something, so he bought the copycat machine with Yu Chen, or a relatively old style, in order to use this thing as a flashlight at a critical moment.

It stands to reason that the beam of light that appears is white light from a distance, and the light should not change color after approaching, but Wu Yu clearly saw that after the light approached him, it was actually blue light.

At this moment, Wu Yu had to hold his breath, but also hold the mobile phone in his hand, ready to shine the light of the mobile phone on the other party's face before the other party found out, so that when the light flickered, the other party would not be able to see himself clearly, but he could see the other party's appearance first.

If you are sure that the other party is indeed Yu Chen, then your own preparations are useless, if the other party is not Yu Chen, then you will have the opportunity to sneak attack the other party from the darkness first, even if you can't subdue the other party, at least you have enough time when you want to run.

The strain had been planned in his heart for a while, Wu Yu's heartbeat barely calmed down, the speed of light in the darkness gradually approached, and when he saw that the farthest beam of light was about to hit Wu Yu's body, Wu Yu suddenly jumped up, and at the same time his body jumped up, the light of the flashlight shone on the upper part of the body of the light source.

The purpose of jumping up was to avoid the opponent's beam, so that he could see the opponent's face first, but Wu Yu ignored a problem, that is, the height of the passage.

The first thing I saw was not the other party's face, but because of the special pain of his head touching the roof of the shed, Wu Yu's eyes were subconsciously closed.

The landing brought severe pain to the buttocks, so that Wu Yu had to grin his teeth, but he had not yet determined who appeared in front of him, Wu Yu endured the pain and hurriedly looked towards the defense line of the light, but fortunately, the light of the other party's flashlight did not seem to shine directly upward, but on the ground.

Wu Yu looked up, but he gasped, and the person who appeared in front of him had no head.