This seems to be a reasonable situation, but it makes Liu Chen feel a little incredible, after the murder occurred, the police have already conducted a carpet search here, it is impossible not to even find these obvious footprints, the only possibility is that these footprints were left after the murder, and it was after the murder, because after the murder, the police had cordoned off the area for a period of time, and martial law was imposed in the entire park.

According to the time calculation, these footprints could not have been left by Yu Junmin's people, at that point in time, Yu Junmin had been arrested by the city bureau, and his base camp was in Tianyu Park, not in People's Park.

These discoveries gave Liu Chen a lot of confidence, and he had a hunch that there must be many hidden secrets here, so he continued to walk along these footprints. The tall jungle area was huge, and Liu Chen searched carefully as he walked, not letting go of any clues that might be missed.

In the jungle, the footprints were chaotic at first, but eventually became orderly, and everyone walked in the same direction, indicating that they had come to an agreement after some discussion and even argument.

As the investigation deepened, Liu Chen became more and more excited, although he only slept for less than three hours a night, but at the moment he was not sleepy at all, the excitement of exploring the truth made him enjoy it very much, the kind of capture of unknown secrets, the sense of accomplishment of smashing other people's conspiracies, he was very fascinated.

It took a long time to finally pass through this jungle, and then came into view of an empty flat land, this flat land is actually a winding hillock, but compared to that jungle, the terrain here is much more gentle, Liu Chen sped up his pace and came to this flat land, but he didn't find any clues, the only information was that the footprints continued to move forward, but because it was hard land, the traces left were not obvious.

At the end of the flat land is the boundary of the People's Park, blocked by a high wall, this place has become a dead end rather than a way out, it is impossible for these people to make such an obvious mistake, Liu Chen has a hunch that there must be more secrets in this vicinity.

Liu Chen came to the bottom of the high wall, looking around at everything here, there seemed to be no difference, it was a very common wall, covered with moss and weeds, slightly solemn.

Anyway, time is not in a hurry, Liu Chen simply took out a cigarette and lit it, and then sat under the wall, letting his mind relax, in the faint smoke, he seemed to be able to see all kinds of flashes of spiritual light, his eyes drifted with wisps of smoke, and suddenly his gaze stopped in a weed ten meters away.

Liu Chen vaguely felt a little strange, his eyes fell here for a long time and couldn't take it away, he always felt that these weeds were a little unreasonable, the weeds around it seemed very low, but this place was extremely abrupt, as if someone deliberately created it to hide something.

Liu Chen extinguished the cigarette in his hand, and immediately got up and came to this abnormal weed, he reached out and plucked it, it was true that these weeds were soft and lifeless, he continued to push them down, these weeds could be removed in batches, and they were really covered up artificially.

This major discovery made Liu Chen speed up the movements of his hands, and after half a minute, he removed all the weeds, and what appeared in front of him was a cement lid, which he held with his hand, this lid can be opened, and the secret must be under here.

For the sake of safety, Liu Chen did not rush to lift the lid with his hands, but found a long branch nearby, inserted one end of the branch into the handle above the lid, and then worked hard at the other end two meters away, using the principle of leverage, and easily opened the lid.

Sure enough, caution is still useful, the moment the lid was opened, a flying knife shot out of it, this flying knife flew out of about ten meters high and fell down, Liu Chen walked up to take a look, this flying knife is not the same as the flying knife used by the military and civilians at the beginning, but it is exactly the same as the flying knife left by the master for himself, and there are the words "Dragon and Tiger" on both sides of the front and back, thinking that Uncle Yan also has the same flying knife, this kind of flying knife is unique to the people of the Dragon and Tiger Special Combat Team back then.

This was an astonishing discovery for Liu Chen, because it was obvious that this flying knife was left by Cao Yunfei, who had been in the Dragon and Tiger Special Combat Team, could it be that Cao Yunfei was really the same person as Yu Junjun and the mysterious old man???

If you look closely, there is still a layer of poison on the flying knife, and if the person who opened the lid can't dodge in time and is stabbed by this poisonous flying knife, his life will definitely be in danger. Being so afraid that someone else will open this lid, and so painstakingly laying this trap, it means that there must be some shocking secret hidden here!

Liu Chen calmed down, grabbed a stone and threw it into the cave, and then there was a bang, and there was a burst of smoke at the entrance of the cave, it turned out that there was a ** hidden underneath, if he was impulsive just now, he would definitely be blown to pieces, Liu Chen patted his chest, and was afraid for a while, it seems that it is not so easy to get the secret inside.

As the smoke cleared, Liu Chen threw down a few more stones one after another, and without another explosion, he began to get up and walk towards the cave. Turn on the laser flashlight you carry with you and shine it into the hole, you can clearly see that the hole is not deep, only about two meters deep, and it leads to the outside of the wall.

Carefully grasping the sides of the hole, he slowly lowered his body, then let go, jumped into the hole, and looked to the left, where he could not see from the outside. It's like a bomb shelter, there are lights installed on the walls on both sides, and they are vibration-sensitive, because there was a violent explosion just now, and the lights on both sides are almost all lit, and it looks like the length should be at least twenty meters, which is still visible.

Liu Chen carefully observed the passage deep into the cave to see if there was any hidden mechanism, according to the fierce defense mechanism before, this passage should not be too simple. Although he didn't see anything abnormal, Liu Chen still walked inside very carefully and slowly.

After walking for a distance, I didn't notice any movement, and the lights behind me began to fade out due to time, while the lights in front of me were still on. I don't know for what reason, Liu Chen suddenly stopped, waited quietly, and after about ten seconds, the light in front of him began to gradually go out, but there was a light that never went out, and it was lonely and on.

Liu Chen felt very strange, he stood there, picked up a stone and threw it over, when the stone flew over the lamp, an arrow suddenly shot out of the lamp, this arrow shot very strongly, it was fiercely inserted into the opposite wall, the tail of the arrow was still trembling violently, if a person walked over, this arrow was aimed at the head.

Several consecutive lucky escapes made Liu Chen have to be more cautious, and he took out two short knives from his body to deal with the danger that might arise at any time. He first threw the stone and smashed the lamp that had just emitted the hidden weapon, and at this time the entire passage was in darkness, and for Liu Chen, the darker the environment, the more favorable it was for him.

Liu Chen stepped forward step by step, he was good at moving forward in the dark, not only could he see the road ahead, but his sense of hearing also became more sensitive at this time, and he could clearly hear a grain of sand blown by the wind in front of him.

He advanced a distance of about ten meters in this situation, and suddenly a dark arrow flew over from the upper right, Liu Chen didn't see it, but he judged the direction in which the dark arrow flew just by hearing, Liu Chen turned sideways, and his right hand rotated hard, blocking the dark arrow directly with a short knife, and ejecting it far away.

Due to the violent movement again, the lights on the entire passage turned on again, and the sudden light made Liu Chen's eyes a little stimulated, in order to hide himself in the dark, Liu Chen flew out of the short knife in his hand as a flying knife left and right, and the blades of the two short knives flew quickly along the light bulbs on the wall, and in a few seconds, the two rows of light bulbs on the wall were all shattered, and the passage fell into darkness again.

As long as he is in the dark, Liu Chen has greater confidence, after all, in other people's territory, the enemy is in a very passive situation, and only by being in the dark together will he regain the initiative.

Liu Chen began to lean his back against the wall on the left side of the passage, walked sideways, and continued to walk for dozens of meters, without incident, but the calmer he was, the more cautious he became, Liu Chen put his ear to the wall, carefully discerning the movement coming from inside, and then he heard a slight vibration from the passage, which seemed to be the sound of running water and dripping stones, which indicated that it was very likely that there were people in the passage.

Liu Chen quickened his pace, and finally came to the end of the passage after three minutes, this is a hundred square meters of spacious place, compared to the hole hidden by the soldiers and civilians before, this place is much more neat, like a real air-raid shelter, and it is a bomb shelter that has been transformed.

There was a mat on a flat floor, and a table not far away, and as far as the eye could see, there were only these two things, but if it was that simple, there was no need to use a lot of mechanisms to prevent others from entering here, there must be something else hidden here, look carefully.

Liu Chen used a laser flashlight to illuminate every corner, especially in the cracks of the stones, he found nothing suspicious in the east, and continued to look for the west, except for some dusty platforms, the cracks in those stones were already full of cobwebs, and there was even a dead mouse corpse in one crack that had been weathered.

Nothing was found, Liu Chen felt very strange, "It can't be as simple as that, if you look for it again, it must be hidden in a certain institution." Liu Chen cheered himself up and reorganized his thoughts while his gaze continued to wander around every corner.