This side quest is described in the first person and tells the story of a man who hid in the fifth cubicle of the toilet in order to catch the red shadow that always appears at midnight.

What happened next was not described in detail in the mission description, leaving Chen Ge with ample room for imagination.

He turned off the flashlight, feeling somewhat puzzled: "The mission said that a red shadow would appear in the toilet at midnight, but judging from the footsteps, it was clearly two people walking side by side. Could it be that during the years that he wasted at school, the red shadow made new friends?"

The footsteps were slowly approaching the toilet on the second floor. According to the mission requirements, Chen Ge should hide in the fifth cubicle of the toilet at this time, but he felt that doing so was too passive. If he really encountered something terrifying, he would not be able to run away even if he wanted to.

"Maybe I should be more proactive."

Chen Ge was holding a tool hammer and lying in ambush behind the bathroom door. No matter who came in, he was ready to hit them with a hammer first.

Chen Ge took a breath, held his breath, and raised the tool hammer in his hand.

The footsteps became clearer and clearer, as if two people were running side by side, and they were very close to the bathroom on the second floor.

The waiting process was a torture for Chen Ge. He had no idea what was outside, let alone what it was going to do. He could only eavesdrop while trying not to make any noise.

After about a few seconds, the footsteps finally stopped at the toilet door.

“Here they come!”

Chen Ge's hand holding the hammer began to sweat, and his heartbeat gradually accelerated.

There was a heavy rain and wind outside the toilet, and more and more raindrops were blown into the house, wetting the ground.

"Where's the person?" Chen Ge turned his head to look behind him and above the door panel, but nothing like a human face suddenly appeared. His patience was slowly worn out, and he grabbed the door panel with one hand, ready to go out and take a look himself.

But before he could walk out from behind the door, a flash of lightning illuminated the night sky. In the brief light, Chen Ge saw two shadows appear on the toilet floor.

"There's someone at the door!"

He froze in place, the flashlight had been turned off long ago, and the bathroom was now pitch black, unable to see a thing.

"The shadows are very short, like two children." He did not dare to relax at all and waited for a few seconds. Then footsteps were heard at the door again.

However, unlike what he had imagined, the owner of the footsteps did not enter the bathroom, but entered the corridor beside it and seemed to go to the first floor.

"Leaving now?"

Chen Ge slowly moved his feet and looked towards the toilet door. There was nothing there.

"There seemed to be two children standing at the door just now. This is different from the red shadow described in the black phone mission. Is it because the time interval is too long and there are unknown changes, or is it because of my arrival on campus that some strange things have awakened early?"

Chen Ge couldn't think of an answer, and he didn't want to explore it anymore.

Turning on the flashlight, Chen Ge walked to the outside of the fifth toilet cubicle. Regardless of whether this was the target of the black phone mission or not, he had to check it out.

Pushing the door, there was still nothing behind the shabby compartment.

"According to the current situation, the cubicle I'm looking for should be in the restroom on the third floor. The two kids just ran to the first floor. Now is the perfect opportunity." Chen Ge walked out in a hurry. Before he walked out of the restroom, his cell phone suddenly vibrated. An unfamiliar number called in.

"Whose number is this?" Chen Ge has very few friends, and he rarely contacts the few he has.

He hesitated for a moment, huddled in a corner, exited the live broadcast, and answered the phone: "Hello, hello."

"Are you Gao Ruxue's classmate? I heard that you met a child with abnormal behavior and possibly mental illness today?" The voice on the other end of the phone was mature and steady, giving people a sense of trust.

"Well, who are you?"

"I am her father and a lecturer at Jiujiang Medical University."

Heshan had told Chen Ge before that he had given his phone number to Gao Ruxue. Now it seems that the "senior sister" with a cooling aura is quite reliable.

"Can you tell me in detail about the child's situation? Mental illness is a poisonous weed rooted in the body. If it is not removed early, it will ruin a person's future." Gao Ruxue's father was well aware of the dangers of mental illness. In his opinion, mental illness is even more dangerous than certain physical illnesses.

"It's like this. There's a child about seven or eight years old. He's physically normal, but he looks a little autistic. He doesn't want to communicate with people and he's afraid of sunlight."

"Are there any other symptoms? It would be best to describe them in more detail."

"I saw this child at the entrance of the haunted house. His aunt told me that the child especially likes to play in the haunted house. He did not have any fear or dread that a normal person would have in the haunted house. Unlike in the sun, he was much more active. He seemed to feel safe only in places where the sun couldn't reach." Chen Ge spoke out all his doubts. If he hadn't seen it with his own eyes, he would not have believed that there would be such a child.

"A seven or eight-year-old child likes to go to a haunted house? And he's not scared?"

"Yes, the kid was even curious about the haunted house actors wearing dead makeup."

There was silence on the other end of the phone for a few seconds. "If it's just that he doesn't feel scared, then it could be Wu-Wei's disease, which causes partial damage to the amygdala in his brain."

"I'm sorry, I don't quite understand."

"It's simple. The amygdala is the nerve center where fear memory is established. It is also responsible for controlling the generation of emotions such as fear and anger. If there is a problem here, people will not feel afraid even if they touch high-voltage wires, approach wild animals and poisonous snakes, let alone enter a haunted house."

What Gao Ruxue's father said made sense, but Chen Ge felt that this disease was different from Fan Yu's situation: "Teacher Gao, that child is not afraid of everything. He is afraid of the sun and hates walking in the sun. In addition, his situation is not just that he is not afraid of haunted houses, but that he likes the atmosphere of haunted houses very much. He is completely different in the haunted house and outside."

Chen Ge thought for a moment and added, "He didn't say a word outside the haunted house and didn't interact with anyone at all. After entering the haunted house, he became excited. If you forcibly pull him out of the haunted house, he will attack people. I saw him dig his aunt's arm with my own eyes."

"Hearing your description, it feels a bit like the symptoms of bipolar disorder. When you are manic, you are full of destructive desires, lose your mind, and even hurt your closest people. When you are depressed, you will feel lonely and sad, refuse to communicate, and close yourself in your own world." Teacher Gao carefully analyzed for Chen Ge: "But there is one thing I don't understand. Patients with bipolar disorder have random attacks. There is no such thing as entering a haunted house and they will change. I personally think that since his personality changed in the haunted house, the cause of his illness should be related to the haunted house. Was he frightened in the haunted house when he was a child? Or do his parents work in the haunted house?"

After listening to Gao Ruxue's father's words, Chen Ge had a vague guess.

The boy's personality change is related to the haunted house, and the biggest difference between his haunted house and the outside world is that there are really ghosts in his haunted house.