Switching to the camera in the classroom, Chen Ge watched it carefully several times before realizing that Liu Xianxian was not without fear, but the way she expressed fear was different from that of ordinary people.

When she passed between the two dolls, the head of one of the doll models suddenly fell off. The other four people were startled. Only Liu Xianxian, who was closest to the head, remained calm. With a smile on her face, she picked up the doll on the ground and put it back in place.

Chen Ge paused the video and stared at the smile on Liu Xianxian's face when she picked up the human head model.

"Her smile was very stiff. The few times she smiled, the curve of her mouth corners was exactly the same, as if she had been training for a long time."

"Isn't it normal for a person to show a horrified expression when frightened? Why did she need to train herself specifically?"

Overcoming fear and facing fear with a smile are two completely different concepts. Chen Ge was a little confused about Liu Xianxian's situation.

"Her body was shaking but there was a smile on her face. Does this woman have any mental illness?" Chen Ge recalled the first two special visitors to his haunted house - Fan Yu and Men Nan. When they first arrived at the haunted house, they also behaved very differently.

Continuing to play the surveillance footage, five people have come out of the last classroom. Not long after they left, several puppets seemed to be blown down by the wind and fell out of the last classroom.

There was nothing interesting to see in the subsequent surveillance footage. Chen Ge focused his attention on Liu Xianxian. The more he watched, the more he felt that this girl was abnormal.

For example, in the boys' dormitory of a private college in the western suburbs, a hanged doll suddenly emerged from the dormitory and jumped towards them.

The other four were so scared that they started crying and ran for their lives, but Liu Xianxian just stood there trembling all over.

She still had that smile on her face, but tears were flowing from her eyes. You could tell that she was very scared, her chest was heaving, and she looked like she was about to faint.

The puppet hanging itself would naturally not really hurt her. It jumped to Liu Xianxian's side and fell into her arms.

The dead face looked up at her. Liu Xianxian could no longer control herself and shouted "I'm sorry" loudly, but no one knew who she was apologizing to.

It was obvious that she was shocked. Chen Ge did not dare to stay in the monitoring room any longer. Five people were sent to the hospital yesterday from his haunted house. If another tourist fainted from fright today, it would be difficult to explain.

Lifting the wooden board, Chen Ge trotted into the scene. The other four medical students had already dragged Liu Xianxian out.

They shouted for help to the surveillance camera and chose to give up the visit.

"Don't be afraid, I've been watching you in the monitoring room. If anything unexpected happens, I will come in and take you out." Chen Ge had a good attitude. He arrived within a minute of the incident.

"Boss, nothing will happen to Liu Xianxian, right?" Ma Ying was a little worried.

"It's hard to say for now." Chen Ge glanced at Liu Xianxian who was slowly calming down. Her facial muscles were twitching, and she was forcing herself to smile even at this moment. "Actually, what I'm curious about now is why she didn't run away when facing the haunted house props, but stood there stupidly?"

"I don't know either. Liu Xian also experienced this situation in the dormitory, but it was not serious." Ma Ying supported Liu Xian, and they walked outside together.

"Has this ever happened?"

"Yes, Liu Xian was very afraid of bugs before her sophomore year, but from one day on, she was suddenly not afraid anymore and sometimes even dared to reach out and catch those bugs."

"Starting from a certain day?" Chen Ge was now certain that Liu Xianxian must have encountered something during her time at school, and that this person was definitely problematic.

He knew that impatient people would not be able to get what they want, so he didn't push her too hard: "We have a professional doctor here, let's take her out first."

Chen Ge personally sent Liu Xianxian to the medical room. He wanted to take this opportunity to communicate more with Liu Xianxian and try to get some information out of her, but he really needed someone in the haunted house, so he had to leave first.

After waiting until around five or six in the afternoon, there was no text message from the black phone, so Chen Ge began to wonder if he had found the wrong person.

"Isn't the special tourist among them?"

After being busy until 6:30 in the afternoon, Chen Ge closed the shop. He simply cleaned up and ran out of the park with his bag on his back.

After getting in the taxi, Chen Ge sent a message to Captain Li, saying that he had something very important to discuss and that this matter must not be made known to anyone else.

Captain Li quickly wrote back to Chen Ge and arranged to meet at the Bauhinia Park next to the Xicheng Police Station.

At 7:10 in the evening, Chen Ge found Captain Li in plain clothes in a pavilion.

"Chen Ge, you are so mysterious. What do you want from me?" Captain Li lit a cigarette and leaned against the pillar of the pavilion.

"I want you to help me test something." Chen Ge took out the sealed oil paper bag from his backpack. "There is an iron nail in it, and the front end of the nail is stained with blood. Don't you police have a DNA data comparison library? Can you help me check the owner of this blood and see if there is any record."

Captain Li took the oil-paper bag, but he didn't agree immediately: "Is this left by the murderer?"

Chen Ge nodded.

"Then why didn't you send him directly to the police station? Why did you call me out and give it to me secretly?" Captain Li put out his cigarette and exhaled the last puff of smoke. He looked at Chen Ge deeply and said, "Do you suspect that the murderer is a policeman?"

Chen Ge did not deny it: "Uncle Sanbao, the consequences of this matter may be terrible, and I don't know the answer now."

"Just keep causing trouble for me every day." Captain Li put the oil-paper bag into his inner pocket: "The results of the identification will be out by tomorrow night at the latest."

"Thank you very much."

"Thank you for nothing. It is the police's duty to catch the murderer."

Captain Li turned and left, and Chen Ge also took a taxi to return to New Century Park. As soon as he got in the car, his cell phone suddenly rang.

"Liu Xianxian?" Chen Ge pressed the answer button: "Hello? Are you feeling better?"

"Much better."

"Do you want to talk to me about something?"

"It's like this." Liu Xianxian was a little excited. She was organizing her words: "Can you come to Jiujiang Forensic Medical College tonight? I have an appointment with that person. I don't know whether that person loves me or not, so I want you to help me take a look."

Chen Ge didn't expect Liu Xianxian to actually call him about this. After thinking for a moment, Chen Ge said, "Okay, I'll be there right away."

After he agreed to Liu Xianxian's request, the black cell phone in his other pocket vibrated. He took out the phone and found a new message on the screen.

"The third special tourist has left. After your efforts, you have successfully obtained the mission information! Unlock the hidden trial mission - the disappeared wife!"