At present, there are three large construction sites in Qingji City, the largest in the west of the city, which is about to build a high-rise residential complex, which has been built for about five years, and seems to be too early to be completed, and the second largest in the north of the city, where a large shopping city will be built in the center of a residential area.

The smallest of the area is in the east of the city, between the pier and the city center, next to the commercial area, a six-storey three-dimensional parking lot is under construction, which has basically taken shape.

In the past few days, there are really a lot of people wandering around the construction site, and the foreman thought that he was here to steal things at first, but after asking, he learned that it was the police, all kinds of policemen, wearing civilian clothes to walk here, looking around, and then slowly strolling away.

The foreman inquired, but couldn't find out anything, and asked the boss to inquire, and it took a lot of effort to find out, saying that there were bad people eyeing this place and trying to make trouble.

The boss and foreman were frightened and immediately stopped work, gave the workers a few days off, and asked them to come back on Friday.

So the people on the construction site went to the empty building, and the valuable things were moved, leaving only two people guarding the tower crane, and there was no way to demolish it before the construction was completed, and the police did not let it be demolished.

Liang Chen had come to see it once on Sunday afternoon, and he was always suspicious that the invitation was just a clumsy prank, just curious about the way it appeared on the desk, and wondered who had put it in.

Unexpectedly, as soon as I came here, I met some former colleagues, and then I learned that many police officers have received invitation letters.

The matter of the invitation has spread, and the police in Qingji City have caused a small shock, which is also inevitable, the more people who receive it, the greater the possibility of leaking out, and the other part of the people who have received the invitation will naturally take out their own share for comparison, so the more and more it spreads, the good thing is counted, and there are people in every department of the police who have received the invitation, but no one knows how the invitation is put on their desks or backpacks.

The formal, informal investigation began on Friday night, but nothing out of the ordinary, either on the invitation or on the construction site, had to be abandoned and some police officers were left around to avoid any bloodshed.

Liang Chen still climbed up and down the construction site for a walk, he is the most powerful criminal investigation detective in Qingji City, he pays great attention to details, and his vision of the world is different from others, and he also failed to find any suspicious points.

............

On Tuesday night, Liang Chen didn't go home as usual, went to eat something, and went back to the office to look at the case file, which was not only his job, but also his hobby.

At nine o'clock in the evening, Lu Yan walked into the office with two boxes of instant noodles, this is their supper, the "performance" time is midnight, I don't know how long it will last, take advantage of the morning to pad the stomach, so as not to be hungry when you get it.

At eleven o'clock, the two left the criminal police detachment together and came to the vicinity of the construction site in Liang Chen's car.

There are already a lot of cars parked in front of the construction site.

There were a lot of people who came, far more than the people who received the invitation, some of them were just curious about the matter like Lu Yan, and some were the police on duty - they were ready to act, and if there was really a "blood bloom" thing, they would control the situation and arrest the relevant people as soon as possible.

After all, the fact that criminals who think they are smart have provoked the police has not stopped since ancient times, and the most famous is Jack the Ripper, although Jack the Ripper was not caught, but he was not informed in advance of the time and place of the crime, and such people were either caught early or only appeared in anime.

The person who sent the invitation letter is probably just playing a prank and doesn't show up until midnight, but it doesn't matter if you're busy in vain, anyway, the people present are all police, and they are not afraid of losing face.

Secret sentinels were also set up around the construction site to monitor nearby movements.

Liang Chen held an umbrella, nodded and greeted people all the way, and came to the tower crane, Lu Yan's original plan was to hide in the distance and peek, since there were already so many relevant people here, she also followed Liang Chen generously.

Thirty or forty people had gathered in the open space in front of the "Iron Giant", and a phalanx had been formed, but not many people spoke, the time was already very late, and it was a little cold, and the road in the construction site was not easy to walk, and everyone stepped on the thin mud on the soles of their shoes, and they were uncomfortable.

Liang Chen looked up, he could only see the general outline of the tower crane, and the red light at the top that was bright and dark, the night was already deep, and there was no lighting, and the construction site was black.

"It's not a good environment for anyone. He thought so, in the mud, it is very difficult for the police to hunt down the suspect, but this place is empty, and it is not easy for the suspect to hide.

People were all looking up at their watches, waiting patiently, and there were people joining in behind, and by 11:45, the number of people in the phalanx was close to sixty, plus the number of people in ambush around the area, the number had exceeded a hundred, and all of them were police, and for the criminals, this construction site was almost like hell.

"Have you also received an invitation?" Liang Chen saw Sun Xiuming, walked up to the old friend, and handed over a cigarette.

Sun Xiuming nodded, lit a fire for Liang Chen first, then lit his own cigarette, looked up, and said, "It's raining, the umbrella is blocking the view, in case there are people on it, wouldn't you be able to find it?"

"Someone should be watching. Liang Chen said with a cigarette, and asked again, "What time did you come?"

"I've been here since eleven. Sun Xiuming rubbed his eyes, usually he was asleep on the sofa at this time, but today was different, he was a little excited in his heart, because he was the only one who knew the truth of the matter, and he was a participant, but he didn't know what arrangements Sun An had, "I heard that it was searched, once in the morning, noon, and at night, and there were people staring at it all the time, and no one came in and out all day." ”

"Could it be that the surrounding ambush was exposed and scared that person away, so we won't come for nothing, right?" Lu Yan asked with a bitter face.

She and Sun Xiuming are also acquaintances, and Officer Sun often goes to Liang Chen and has met too much.

"It's definitely coming, I just don't know where it's coming from. Without waiting for Sun Xiuming to speak, Liang Chen preemptively said, professional habits, he rarely determines one thing for no reason, but his intuition tells him that the person who sent the invitation letter will definitely come.

That person can send out so many invitations out of nowhere, and they are not seen, which means that his mind is not too bad, and he must have expected that the invitation will attract attention and attract the police, and still send out the invitation, then he will definitely come.

Everyone who heard him say this looked around, the fence of the construction site was not high, and it was easy to climb in, but it was impossible to get under the tower crane without being detected.

At 11:58 a.m., there were more people looking around.

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