From dark to dawn, morning sun to sunset, Coco suddenly looked up and fell asleep on her stomach on the desk? It was almost dusk, washed his face, turned his head and saw that there were still things on the computer screen that he was looking at before, and the bone particle analysis report showed that in addition to some common fine particles on the edge of Miss Head's bones, there was also a strange microbial bacteria, Coco had just spent a few hours looking for information about this bacteria, except for finding that this bacteria was rare, and liked cold, damp places, there was nothing else for reference.

Cold, damp...... Coco couldn't help but think of poor Wang Xuanxuan's confession.

"He forced me to the basement of my rented house with a knife and covered my eyes with a cloth...... To me, to ...... me"

Coco stretched out, picked up the physical evidence bag, and decided to take a trip to the house rented by Wang Xuanxuan, maybe the murderer was contaminated with this micro-bacteria in the basement of Wang Xuanxuan's rental house, if it can be proven, it can be used as one of the evidence to connect these cases together in the future.

Walking to the second floor, Coco couldn't help but take a detour to the criminal police office, Da Xuan and they were still busy interrogating Zhang Chengqi, Bai Ling, Xue Yang and others were sent out to verify Zhang Chengqi's various testimonies, Keke looked at the door of the criminal police team, and found that the office was noisy, and even Xu Wanli, who was usually the most idle, was yelling at something, so she left silently. Coco took out the moped named Little Sheep from the garage and slowly pushed it out of the public security building.

The bright afternoon sun sprinkled on the sycamores on the side of the street, the winter gloom has been wandering for a long time, and it should soon be spring, Coco looked up, and suddenly found that he had not noticed the weather for a long time, it turned out to be such a beautiful thing, the fresh wind, the light blue sky, every day and every day buried in the study of various tortured corpses, and even the fact that he was still alive had forgotten.

Wang Xuanxuan lives in an old-fashioned community, dilapidated houses combined with noisy crowds, in the afternoon, Coco followed her slowly through the paths, passed a primary school, heard the sound of reading by the window to the road, through a not very clean vegetable field, the young children squatted on the ground in groups of three or two squatting and slapping card games, the dishes and rice shouted and sold the sound, all kinds of noisy noise, suddenly made Coco, who has always liked quiet, feel a lively beauty.

Turning the corner of the street, Wang Xuanxuan signaled that her room was not far in front, and Coco retracted her messy thoughts, and felt that she suddenly began to sigh about the beauty of life.

When the door opened, Wang Xuanxuan showed a shocked expression, but Coco felt that she was exaggerating, but she didn't think about it.

"Hello, my surname is Xun, we met at the Public Security Bureau, remember?"

"Yes...... Things? Wang Xuanxuan said as he looked around behind Coco.

"That's right, I found a little clue in the details, and I want to take a sample in the basement you mentioned and go back to check it, is it convenient?" Coco remained polite, fearing that the single woman would reject her because of disgust.

"You...... Alone? Wang Xuanxuan asked.

Coco raised her eyebrows and was stunned.

"Oh, I, the house is a little messy, if you let a man in, it's not appropriate......"

"Oh, I'm alone, don't worry."

Wang Xuanxuan nodded, and turned sideways to let Coco into the house. This room is not a formal residential building, more like an illegal building attached to the residential building, Coco walked in with Wang Xuanxuan, only to see a dark room unfolding in front of him, a messy kitchen, next to a simple dining table, there are some leftovers on it, not far from the dining table is a simple folding bed, the quilt is neatly folded.

"Since that incident, I have slept in this small bed, and I have never entered that room again, I wanted to move out a long time ago, but it is difficult to find such a cheap rental house around, so ......" Wang Xuanxuan took off his coat and put it on the back of the chair, and then turned around and closed the door of the house where he came in.

"The room?" Coco looked around, isn't there just one room here?

"Oh, I slept here," Wang Xuanxuan turned around and groped in the hallway, only to find that it was a door, the room was originally dim, and if you didn't pay attention, you wouldn't notice that there was such a door on the wall of the hallway.

Wang Xuanxuan walked in through the door and beckoned her, "This is what you want to see, right?" ”

Coco hesitated, a strange feeling like a small needle pricked her heart, thinking about it carefully, but she couldn't remember what it felt or why. Hearing Wang Xuanxuan's greeting, he approached the door.

It turned out that the door was not at all what she expected, and Coco couldn't adjust to the dimness in front of her when she first walked in, and it took a few seconds for her to slowly see where she was in the dim light. This is a basement, a simple iron staircase connects the door to the underground space, and a small dim yellow light on the wall is the only source of light in the whole room, so Coco can't see what is happening in front of him when he first enters the door. In the basement, there is a simple wooden bed, a desk, and two wooden cabinets like bookcases, and when you look closely, there is a small ventilation window on the top of the bookcase, but because of the thick newspaper, it does not let in the light outside the window, although Coco has never lived in such a simple house, but she knows that these are the simplest and necessary furniture for rental housing.

"Forensic doctor Xun," Wang Xuanxuan's voice was soft, but it reached Coco's ears very clearly, "The basement is not ventilated, and the smell is weird, sorry, by the way, I woke up in this bed at the time, and then called the police with my mobile phone." She pointed to the left side of the room, where an old wooden bed was placed.

Coco felt a chill all over her body, and she struggled to make her voice sound the same, "Is that window for ventilation?" ”

Wang Xuanxuan followed her gesture and looked, "Oh, that's a ventilation window, but it's not connected to the outside, but to a small warehouse outside, you know that the vegetable market around here is sometimes quite noisy." ”

Coco couldn't hear Wang Xuanxuan's emotions, but she heard her own heartbeat, and Wei Wei's words began to replay in her ears for some time, "Xun Keran, don't ignore your intuition, it will save your life." She silently recited this sentence twice in her heart, and then felt that she was beginning to calm down, put down the work box on her shoulder, and began to prepare to check the bed that Wang Xuanxuan was pointing to, her movements were skillful and natural, but her mind was like magma tumbling.

The door of this basement is so imperceptible, how can the prisoner who kidnapped Wang Xuanxuan at the door be easily found?

Also, this smell...... Yes, it's formalin.

You may be able to hide it from others, but how can you hide the smell of formalin from a professional forensic doctor?

Coco's brain followed her instincts, and she felt that Wang Xuanxuan was like this basement, not at all what she expected. But there was no evidence in her hand that there was anything wrong with Wang Xuanxuan, and Coco put on the disinfectant gloves and gently stroked the edge of the bed twice, and a layer of dust appeared on the gloves.

Coco stood up slowly, she felt so nervous that she could hear the sound of her heartbeat, but she still kept a smile on her face, "Could you please pour me a glass of water, I was so thirsty when I walked just now." She said to Wang Xuanxuan.

Wang Xuanxuan looked straight at her, then turned to leave, and from the iron staircase came her squeak-squeak-slight footsteps.

Seeing her figure leave the basement, Coco quickly hid a small needle in the toolbox in her sleeve, and then hid the scalpel she was carrying in her left hand, while doing these things, she looked at the small window on the top of the bookcase, she knew that Wang Xuanxuan had locked the door just now, even if she ran out of the basement, she might not be able to run out of the door, Coco felt that her brain had never been running at such a high speed, was Wang Xuanxuan's so-called rape case made up or was there a fact to hide? Either way, why would she do it? And where does this smell of formalin come from? Coco didn't know what situation she was facing, she just sensed the unforeseen danger, she tried to climb up the bookcase and open the small window, but before she could climb up, she only heard a click, it turned out that she accidentally touched the big door of the bookcase, and suddenly, a smell of formalin came to her face.

In the open bookcase, a row of glass cylinders are neatly arranged, like the cylinders used to soak medical specimens in the hospital, the difference is that the glass cylinders in the bookcase contain different women's heads, each with half-closed eyes, and the withered yellow hair tangled with the twisted face, in this dim basement, the glass cylinders reflect a strange light.

Coco didn't know if her breathing had been still for a few seconds or tens of seconds, she swallowed her saliva hard, and put her slightly trembling right hand into her pocket to touch the phone at the moment when she suddenly heard a squeak behind her - footsteps!

Coco turned back suddenly, and Wang Xuanxuan was standing on the iron staircase, followed by another tall man.

The man has a white spot on his cheek.