In late autumn in September, the weather is cool and slaughtering.

Whether it is inside the school or within a kilometer radius of the outside of the school, the lights are bright everywhere, as if it were daytime.

It's just—

Not all darkness can be lit up, night is night after all, darkness is what it is, just like people who are classified, and those who know killers are usually killers.

In the night, a shadow that could no longer distinguish whether it was a person or a ghost arrived at the offshore university campus at a rapid speed, this shadow really looked more like a ghost than a person, because every time he landed at the dark depths that the lights could not illuminate. And every time he left the darkness, that is, when he disappeared, there was no shadow, no sound, nothing, as if he had never appeared in the light.

After this shadow flashed about a dozen times in this kilometer distance, a breeze blew and blew off a few leaves of a banyan tree in the Haida campus, and when the leaves landed, a person suddenly appeared on the tree—

The black baseball cap was pressed low, the black mask covered most of his face, the black trench coat, black pants and black shoes, and a pair of black gloves, except for the strange red light in the black eyes, the man had almost completely melted into the darkness-

Liu Yanbo.

A person who is more suitable for living in the night, because he is the darkness.

The school covers an area of about 2.44 million square meters, with a construction area of about 2 million square meters, and the lights in every building here are now on, so it is impossible to find the location of the gangsters in a short period of time without getting general information.

Liu Yanbo is not a ghost, it is impossible for him to search the entire Haida campus in about two hours, which is the main reason why he risked being suspected to find Pan Yuyi.

On the banyan tree, Liu Yanbo did not rush to the library where the hostages were held, he closed his eyes, held his breath, and quietly listened to the movements around him-

There is the sound of the wind, the sound of leaves falling and the grass moving, and the song of insects and birds......

After making sure that there was no movement of other living people within tens of meters around, Liu Yanbo slowly opened his eyes and disappeared from the banyan tree, and when he reappeared, he was already in the shadow behind a rockery.

Disappear...... Appear...... Disappear......

After about ten minutes, Liu Yanbo was already in the library when he reappeared, and his first task now was to make sure that his guess was correct.

If the hostages were really separated, it would be much trickier to rescue.

Probably because the gangsters were understaffed, except for the screening room on the second floor, Liu Yanbo basically looked at the entire library of books, but he didn't see a single figure.

There are no gangsters guarding the door to the screening room, which is good news and bad news.

The good news is that Liu can easily get there, and the bad news is that it really does look more and more like a trap, or bait.

There is only one door in the screening room, but there is an air window on the door.

Liu Yanbo was like a gecko, his whole body was attached to the ceiling, and he looked inside the screening room through the air window.

He did guess right-

There were only thirty or forty students in the screening room, and there were only six gangsters on guard.

Liu Yanbo didn't break in, but he didn't leave immediately to find out where the other hostages were kept.

The soundproofing of this screening room is very good, but after all, there is still a crack in the door, Liu Yanbo's hearing is excellent, and after lying on the ceiling for about two minutes, he heard a pattern, the gangsters inside have walkie-talkies, which will ring every five seconds, a total of seven times, and each time it rings, it is a different person reporting "safety".

The walkie-talkie rang seven times, which means that there are at least seven groups of people hiding in different locations, plus the six gangsters in this screening room, which is a group, a total of eight groups.

Liu Yanbo glanced at his watch and determined the time.

It was now 10:33 p.m., and there was less than an hour and a half left before the four hours that the officials of Haishi had agreed with the gangsters, and he knew that he had to find the twenty-five gangsters who had dispersed into eight groups as soon as possible.

According to Pan Yuyi's information, the location of five of the eight groups of people has been determined, and only the other three groups need to be found.

The good thing is that -

Liu Yanbo's ability to track and find people has always been good, and it took about twenty minutes for the other three groups of people to be found by him one by one.

There was a lotus pond behind the library, and there was a birch forest to the left of the lotus pond, and a group of two people was hiding in a pavilion in the woods, with two hostages who were tied hand and foot.

There was a small hall about thirty meters south of the birch forest, where seven gangsters were guarding most of the remaining hostages, and Lin Xue was locked up here.

Twenty meters north of the auditorium was a five-story school building, and on the roof of the building lay a two-person team, also with two hostages.

......

The six-person team was twelve, and the two hostages were held with six gangsters and seven gangsters, that is, thirteen guards.

Twenty-five gangsters have been found, and Liu Yanbo knows that it is time for him to prepare for action.

Out of selfishness, Liu Yanbo decided to make that small auditorium his first target.

Probably to facilitate the operation support of the eight groups hidden outdoors, although all the buildings in the school are lit up, there are not a few street lights in the campus, which makes Liu Yanbo's movement much easier.

Under the cover of the night, Liu Yanbo once again returned to the small hall where Lin Xue was imprisoned.

Liu Yanbo shrunk his body into the gutter in front of the auditorium, and before acting, he had to make sure that everything would develop in the direction he expected, and there would be no room for mistakes.

In September, the weather has already turned cooler.

The water in the ditch was also very cold, and the smell was not very good, but Liu Yanbo just lay motionless inside, letting the cold running water wet his clothes and sting his skin......

He was waiting, waiting for the people in the auditorium to say the phrase in English: safe, and at the same time making the final calculations.

If the gangsters in the auditorium are numbered as the first group, then the two snipers lying on the five-story building are the second group, and the birch forest is the third group...... In the screening room is Group 8.

The gangsters start from the first group and end with the eighth group, and this round takes at least forty seconds to come down. Starting from the eighth group and ending with the first group, this is another round, or about forty seconds......

This method is very meticulous, but it is also the biggest flaw, because it is too regular.

According to this reporting method, after the gangsters in the first group have reported their safety once, they need to wait at least 80 seconds before it is their turn to report a second time. However, it is not without benefit for them to report safety in this regular order, for example, the seventh group is the eighth group, and the eighth group is the seventh group, which means that when solving these two groups, it must be completed within ten seconds, and once it is exceeded, all the hostages in the screening room will die.

The distance between the seventh and eighth groups is the closest, only about ten meters apart, but the two groups also stay in two different buildings, one on the second floor of the library, and the other on the fifteenth floor of the other building.

Ten seconds can make or break a decision.