Liang Chen recognized that the young woman Lao Pan tied up was one of the four nurses who operated on Sun An, and she was also the person pushing Sun An's wheelchair in the photo sent to him by the bug.

He looked at Sun An, wondering if it was because this nurse was a traitor and wanted to kill Sun An, but was stopped by Lao Pan, but Sun An stared at it and didn't look at him.

Lu Yan climbed to the top of the stairwell of Unit 6 and saw the pretender lying on it, and the other party hadn't seen her yet, this was a great opportunity, there was no place to hide on the roof, she could easily hit that person.

But just as she was posing, her left arm holding the roof, her right arm stretched out to aim, someone grabbed her hanging right ankle.

Lu Yan was startled, and immediately kicked the hand that grabbed him with his left foot, but he didn't kick it, looked down and didn't see anyone.

This is even more terrifying than the pretender talking very close behind her, the pretender is at least still a person, and she doesn't know what grabbed her ankle, in the photo Liang Chen received, there were only four people and a cloud of smoke on the roof just now, they were Sun An, the pretender, Lao Pan, the nurse pushing the wheelchair and Andre, nothing else, who was arresting her?

The person who grabbed her ankle was even more dangerous and terrifying than the pretender, and she immediately let go of her hand and fell back to the ground, first looking at the corner of the stairwell, then rushing into the stairwell, and seeing no one.

Lu Yan reacted quickly and ran fast, no matter how fast the other party was, it was impossible to escape from her field of vision immediately, but the person who grabbed her ankle was indeed not here, as if he had disappeared out of thin air.

She turned her head again to look around to make sure there was no one, and then climbed onto the roof again and pointed her gun at the pretender.

The same thing happened again, this time Lu Yan's feet were grabbed at the same time, and the other party seemed to have lost patience, and pulled down rudely.

Lu Yan was actually prepared, as soon as she was caught, she immediately looked down and saw a woman with long hair, and then she was pulled down.

She screamed and fell to the ground, only to see the woman run into the stairwell, and immediately got up and chased after her.

"What's wrong?" As soon as Liang Chen heard Lu Yan's shout, he immediately ran back, and when he saw Lu Yan rushing into the stairwell, he also rushed in.

"Hidden ...... Invisible man?" Lu Yan lay on the handrail of the stairs, turned her head, and said a word that ordinary people would never use in their lifetime except for discussing film and television, animation, etc.

The woman was only a few seconds faster than her, she rushed into the stairwell, but she couldn't see her rushing down the stairs, the woman disappeared after entering the door, without a trace, she couldn't think of any other possibility than invisibility.

Liang Chen immediately looked around, looking carefully, but he couldn't find anything, as far as his eyes could see, there was no distortion of the picture, and he couldn't see where the invisible man was at all.

He thought of a question - if there were really invisible people, if the invisible people had been here all along, why didn't they kill them before, why didn't they deal with Sun An?

"Solve the problem outside first. Liang Chen retreated to the door of the stairwell, which was equivalent to blocking the door, and beckoned Lu Yan to come out.

Lu Yan understood what he meant, and immediately followed, closed the door smoothly, Liang took off his police uniform, tied one sleeve to the doorknob, and the other side tied to a wooden stick, and then supported the wooden stick next to the door.

The police uniform was tight, and anyone who opened the door would pull down the stick, and if they didn't open the door, the other party would inevitably have to make a detour from below, which would take a long time, enough for them to solve the crisis on the roof.

"You're here to stay. Liang Chen said to Lu Yan.

Lu Yan nodded, retreated to the door, and looked at the door nervously, she hated the feeling of being grabbed by her ankle.

Liang Chen came out again, and saw that Sun An was still staring at the roof, so he ran to the back of Sun An's wheelchair.

"What's wrong?" Sun An asked curiously.

Lu Yan said that there are invisible people. Liang Chen said in an uncertain tone.

Sun An's eyebrows also wrinkled: "If there was an invisible person, I would have been arrested a long time ago, and it is impossible for me to still be here, but ...... It does look like there's an invisible man. ”

If there is an invisible man, as soon as he knocked out his gun just now, Andrei will be able to hold him and smoke, he is already flying, how can he still sit here.

However, the invisible man can explain why the impostor was able to dodge the bullet just now, and the invisible man stands aside and tells the pretender everything about him, and the impostor can roughly judge the timing of his shot and dodge the bullet.

"Cover me. Liang Chen spoke, returned to the stairwell, and tried to climb up.

At this moment, Sun An's mobile phone rang, he picked it up and looked at it, and said, "No need." ”

The mobile phone screen is also what the aerial drone captured, two, one is the pretender lying on the roof jumping from the other side of the stairwell, and the other is the pretender running into the stairwell of the seventh unit, which is when Liang Chen ran to the stairwell of the sixth unit.

"Such a good time, someone should be prompting him when to act, and sure enough, there is an invisible person. Sun An looked at the two pictures and came to a conclusion.

The invisible man pulled Lu Yan off the roof, firstly to save the pretender, and secondly, to use the scream to attract Liang Chen, the pretender lying on the roof could not see anything, and he must have been prompted to leave at such an opportune time.

Except for the invisible man who didn't know where, there were no enemies left on the roof.

No, there's another one.

"What are you doing?" Lao Pan on the ground saw that Sun An had put down his gun, which meant that there was no danger, so he let go of Liu Jing, who was strangling, stood up angrily, and yelled at Liang Chen.

Liu Jing also hurriedly got up, sorted out her clothes, looked at Lao Pan with angry eyes, and did not speak.

Liang Chen was stunned, looked at Liu Jing who was back in the wheelchair, and then looked at the angry Lao Pan, and asked, "What's the matter?"

"What's going on?" Old Pan smiled angrily, pointed at Sun An and roared, "Do you really not understand or pretend not to understand? If it weren't for him, where would there be so many things in Qingji City? He is not a good thing, let those people arrest him, wouldn't it be a hundred gone?"

On the one hand, he wanted to wake up Liang Chen, a confused person, and on the other hand, he also made his words clear and let Sun An know that the police in Qingji City would not help him.

As soon as he finished speaking, he heard a thunderous gunshot coming from the edge of the roof, and several people looked back at the same time, and saw that far away, a helicopter spun and fell down, falling on the roof of a building, smashing the roof of the building, scattering into a pile of scrap metal and countless fragments, but it did not explode into a fireball like in the movie.

"Well done. Sun An looked at the smashed building and said with a smile.

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