The brightly lit library is gradually enveloped in the night, making the blue building even more mysterious. The city library covers an area of seven hectares, the main building is a double-tower high-rise building, a peacock blue glazed tile roof, a pale cream gray tile exterior wall, a granite base stone steps, and a white marble railing.

Liu Han leaned on the table and flipped through a book: "People outside see me as a serious and hard-working doctor, but under this quiet personality, I am a veteran in the lively and fun-loving social scene." Of course, there was nothing to be ashamed of, but I didn't realize it at the time, I was ashamed, and I quickly learned to separate my two lives. I'm not dishonest at all, both of these are me. I am the serious, successful doctor, and so am the wild, fun-seeking, irresponsible young man. I thought about it for a long time, and slowly I realized that there was nothing special about it. There are two sides to every human being's personality, and he is two people, living together - often very uncomfortable, of course, in one body. ”

"There are two personalities living in one body," Liu Han slowly closed the page, but he was still thinking about the plot in the book, "because of one medicine, you can turn yourself into two people, live a humble and decent life during the day, but you can completely let go of yourself at night, which is quite interesting." She put the book back on the shelf and headed outside.

"Xiaohan, every day I drag it until the library closes before I go back, won't I be afraid to walk alone at night?" Administrator Qian Bing saw her come out and greeted her gently. This female college student spent the summer in the library, and they have already known each other.

"No, I practice taekwondo, who dares to move me, fly him out of eight zhang away with one kick." Liu Han made a joke and jumped out of the library.

Qian Bing looked at her departing back, and always felt that her figure today was a little blurry, as if there was a mist behind her, Qian Bing took off her glasses from her face, wiped them with a glasses cloth, and then brought them back to her face.

Before leaving the library, Liu Han went to the bathroom first, and her bladder, which had been held all night, urgently needed to be released. A stream of heat poured out of his body, and Liu Han squinted his eyes slightly and shivered in comfort, but at this moment, a rustling sound suddenly sounded overhead, as if something was running against the ceiling. Liu Han raised her head suspiciously, she expected to see a gecko or a mouse, but she didn't expect it to be empty. Maybe it's the sound of leaves outside the window? Liu Han didn't think much about it, put on his pants and came to the sink. The sound of rushing water broke the silence of the bathroom, Liu Han washed his face and grimaced in the mirror, then took out his mobile phone from his bag and adjusted it to the beauty camera, and took a beautiful photo of himself.

She bit her fingers and thought for a while, and typed a few words into her mobile phone: "A person's summer vacation is full and lonely." Then, she posted the photos and text to the circle of friends, and walked out of the bathroom humming a song.

Liu Han's school is only two kilometers away from the library, so she walked all the way back instead of taking the bus. There were not many people on campus during the summer vacation, let alone at nearly eleven o'clock at night. Liu Han walked slowly on the forest ** alone, the night wind blew her curls flying, she simply opened her arms, enjoying the rare coolness of summer. She suddenly remembered the circle of friends she had just posted, so she took out her phone to see if anyone had left a message for her status. Seeing that there was a small number 2 on the "discovery", her spirit couldn't help but be excited, it turned out that it was so late, and there were still people paying attention to herself. Liu Han quickly opened the circle of friends, and the first message was sent by her high school classmates: "Little Liuliu, why do you have to post a circle of friends when you go to the toilet." Liu Han reacted at this time, her photo took a picture of the toilet behind her, her face turned red, and she quickly went to the second message, which was sent by her roommate Zhou Yuan: "Liu Liu, is there something wrong with your lens?" Why do I see a flower tail hanging from the partition next to the toilet? ”

Seeing this message, Liu Han was stunned, and then quickly enlarged the photo and took it to her eyes to take a closer look, Zhou Yuan was right, on the partition of the toilet behind her, there was indeed a black and red tail, looking from a distance, it looked like the tail of a snake. But although it was only a tail point, it was already as thick as the mouth of a bowl, and it was hard to imagine how large its body must be.

Liu Han couldn't help but shudder, took a few steps forward and sat down next to a fountain, taking advantage of the spotlight to carefully check the camera of his mobile phone. But the camera couldn't see anything wrong with the naked eye, so Liu Han turned on the camera and took another picture of himself, wanting to see if there was still that strange tail.

After seeing the photo, she breathed a deep sigh of relief, although the expression of herself in the photo was stiff and panicked, but fortunately, the intimidating tail did not appear behind her. Maybe the tail was just the effect of the reflection of the light, she comforted herself in her heart, glanced at the photo she had just taken again, then stood up and patted her ass to go back to the dormitory.

As soon as she took a step forward, Liu Han's footsteps suddenly stopped, and she seemed to hear a sound of water behind her, and she didn't dare to move. With a bang in her head, she secretly took out her mobile phone from her pocket, and opened the photo just now for the third time, she saw that in the fountain behind her in the photo, there was a looming snake body, and the snake's body was covered with red and black patterns.

The mobile phone screen dimmed, and on the black and shiny mobile phone screen, a monster with a snake head and body was reflected, and the monster was lying on the pool wall of the fountain, gently calling Liu Han. She couldn't understand the sound it made, but at the moment she slowly turned around and walked towards it as if she couldn't control her body.

The monster stood at the same level as Liu Han, "staring" at her with a pair of eyes that only left the whites of his eyes, twisting his stout body and approaching her little by little.

"To answer my question, why can't good people die well in this world? Why do good people always be bullied? ”

Liu Han's mind suddenly flashed such a sentence, she fell to her knees with a thud, her lips trembling uncontrollably, "I...... I...... I don't know ......."

Hearing these words, the monster suddenly arched its body and faced Liu Han in the shape of a half-moon, like a taut bow and arrow.

A hurricane swept by, and Liu Han disappeared from the fountain, leaving her phone broken in half lying alone in the pool.