After the response of the lost Xie Yunmeng, Yun Yeyao and Mo Haiyou searched for a long time in the same place but did not find any gaps, and when the mobile phone was about to run out of battery, they had to give up and walk back.

Neither of them glanced overhead, as there seemed to be a faint gap in the edge of a plank that would not have been noticed if they hadn't looked closely in the dark.

Hearing Xie Yunmeng's voice, but not seeing anyone, Yun Yeyao's worry can be imagined, he was thinking about where Xiao Meng was all the way, especially after knowing that the murder occurred, Yun Yeyao's gray brain cells were like an open floodgate, and everything that happened before and after surged back into his brain in an instant.

After thinking for a long time, Yun Yeyao stopped and said, "Xiao Zuo, what time is it!" ”

Mo Haiyou reluctantly glanced at his phone and replied: "10:20." Do you have something in mind? ”

"I don't think this thing should have started here, maybe it started in S City. It didn't seem to know any actors at all, and when I said that we were introduced by an actor friend of the owner, he looked puzzled. And...... Xiao Zuo, I think Xiao Meng and I may be taken advantage of. ”

The pause in Yun Yeyao's words seemed to point the finger at the actor who told the story at the beginning, and Mo Haiyou said: "In this way, let's go back to the room first and then analyze this matter, it is inconvenient to move here now, and it is easy to be blocked by people to go back." ”

Speaking of this, the two of them sped up their pace, and Mo Haiyou kept groping the side of the wall, looking for the window where they came out.

However, strange things always happen in a pile, and the two men walked for a long time, but did not touch the frame of a window, as if they had gone the wrong way, and there were only wooden planks left on both sides of the passage without gaps.

This time, too, the medical examiner began to get nervous, and he repeatedly tapped the plank with his hand, hoping to find a place that could move or open. As a result, they did not gain anything until they reached the end of the other end of the passage.

"There is only the caretaker mother-in-law and Moji left in the house, and there is an unseen introduction, there must be a murderer or accomplice among the three of them. If you really want to trap us, I'm afraid it will be difficult to find a breakthrough, because the mechanism must be inside the house. Unless there is a tool to force it open, but in such a narrow place, we can't do anything. Yun Yeyao said, he squatted on the ground with a worried face.

Mo Haiyou didn't squeak, he still didn't give up checking the planks up and down, left and right, it's better to act than to sit still, this truth is good.

Just when the two of them were at a loss, there was a faint crying in their ears, it was a girl crying and calling for help.

After a little recognition, Yun Yeyao found that the crying sound came from the wooden board next to him that blocked the end of the passage, which showed that there was an unknown space behind the wooden plank. Yun Yeyao's spirit suddenly came up, and he said to Mo Haiyou: "Xiao Zuo, is there a way to break the planks here?" ”

Mo Hai glanced at him to the right and replied, "I'm not Xie Yunmeng!" Maybe you can try, though. After speaking, Mo Haiyou took out a small box from his pocket, which contained the scalpel he carried with him.

Yun Yeyao saw the scalpel and immediately shrank back, making room for Mr. Forensic Doctor.

The forensic doctor handed Yun Yeyao the faintly lit mobile phone in his hand, groped for the edge of the wooden planks together, and began to use a scalpel to pull up and down in the gap, as if the locksmith was opening the door for someone who forgot the key.

The crying behind the plank grew quieter, accompanied by the sound of coughing, and the cries for help were barely audible, but it was not a single person inside, at least two or three trapped people.

Taking advantage of Mo Haiyou's search for a lock, Yun Yeyao shouted loudly inside: "Hey! Are you all right? Can you hear me? ”

At first, no one answered, probably because it was too far away, and they didn't react, and after shouting several times in a row, Yun Yeyao heard a person running over, and then the girl's voice came out: "Please help us open the door, hurry up!" Someone is dying here! ”

"Who are you?" Yun Ye asked.

"We are guests at Asuka Grass Inn."

"Is it another Asuka Grass Hotel?"

"Yes."

"So have you seen a man over 1.85 meters, he is a criminal policeman, and he arrived here yesterday."

"Yes, but it's not with us right now, because of our game, he and Granny Yan should have come here along the sewer pipe, but they don't know what happened, and they haven't shown up."

The voice inside answered in detail. This couldn't help but Yun Yeyao frowned, it was really rare for a little girl at the scene of the murder to keep such a cool head. And she said that Xie Yunmeng was in the sewer pipe, so the place they approached just now was the sewer?

Impossible! Xie Yunmeng's voice didn't seem to come from deep underground! Yun Yeyao felt like he was on top of his head.

However, he did not stop the conversation with the girl because of his thoughts, and continued: "How many of you are in there now? ”

"Uh...... There are four, four. ”

"And what about corpses?"

"Two, they don't know why they suddenly collapsed, and we couldn't wake up no matter how we shouted."

"If they fall suddenly, how can you be sure they're dead?" Yun Yeyao continues to lure the people inside the plank to talk to him, and gradually expands the conversation to the homicide.

The girl seemed to be a little flustered at this point, and she paused again before saying, "I touched their nostrils, and they were no longer breathing." ”

"And what about heartbeats? Is the heartbeat still there? Yun Ye Yao asked her next.

"I can't touch it, open the door and get us out, it'll soon be in darkness!" As soon as you enter the Asuka Grass House, we are willing to tell you everything in detail. ”

"Wait a minute, we don't have the key either, and we're trying to figure out how to open the door!"

"What? Who are you? The other girl inside asked with tears in her voice.

Yun Yeyao replied, "We are also the ones who came to stay at the Asuka Grass Hotel, and we are friends with the criminal policeman you met, but after we entered the Asuka Grass Hotel, we only saw the administrator's mother-in-law and Moji. Can you tell me your names? “

After a pause, the girl who spoke before said: "My name is Xiaorou, and the one who spoke just now is called Phantom, and there are two people alive among us, Duan Hongye and Xiaowei, Xiaowei is taking care of Mr. Duan now, and his condition is not very good." ”

"Is that Mr. Duan injured?" Yun Ye asked.

"No, he is in great grief because of the death of his companion." Xiao Rou's answer was not so certain, and there was also a voice asking about her companion.

"I remember that Moji should also have a sister Moli, isn't she with you?" Yun Yeyao heard Xie Yunmeng mention Mo Li, so he asked casually.

Unexpectedly, this question made all the people in the room silent, especially Xiao Rou, who spoke, did not make a sound again for a long time, Yun Yeyao waited for a while, felt that something was wrong, knocked on the wooden board with his hand and asked again: "What's wrong with you?" Why don't you answer me? ”

At this time, there was a sound from Mo Haiyou's side that seemed to be a lock being pried open, and immediately, the wooden plank was opened to the side under Mo Haiyou's push, he put the broken scalpel into his pocket, pulled Yun Yeyao, and took the lead in getting into the narrow and low wooden plank.

There was still a faint light inside at the moment, and Yun Yeyao hurriedly followed Mo Haiyou to take a look. First of all, there was a staircase that extended upwards, and before they had gone far, they could see a small boxy room, and at the door of the room, there stood a little girl with a panicked and anxious face, probably she was Xiao Rou.

Yun Yeyao asked, "Are you Xiaorou?" ”

"Yes, Xiaowei, Qiaoqiao, and Mr. Duan are right behind me."

At this time, Mo Haiyou spoke, his voice was very low, with a gloomy feeling: "I think it's okay this time, Xiao Yao, you take them out first, and I'll perform an autopsy." After speaking, he motioned for Xiao Rou to get out of the way, and then went into the room by himself, and did not pull Yun Yeyao.

After digesting Mo Haiyou's words on the spot, the actor surprisingly didn't say any worried words, he was about to urge Xiao Rou to leave quickly, but a loud blow came from inside, and then Xiao Wei's exclamation: "What are you doing?!! ”

"I told him to sober up and go out with you, the passage has been opened, if you don't leave now, do you have to wait for the murderer to come back?" When Mo Haiyou's words sounded, Xiaowei was immediately too frightened to respond.

Xiao Rou also said to the people inside: "This gentleman is right, let's go out quickly, and talk about something when we get to the house!" ”

After tossing for about five minutes, the four of them successfully followed Yun Yeyao and left the small room, can they go back to the house, let it go for the time being, let's take a look at the situation on Mo Hai's right.

As soon as Mo Haiyou entered the inside of the wooden board, he felt that something was wrong, he smelled a pungent suffocating smell, a little similar to the smell of burnt plastic just now, but Mo Haiyou knew that these were two completely different substances.

The smell is very light and bland, almost volatile and clean, and if you are not a person who is particularly sensitive to it, you will not notice it at all. Mo Haiyou confirmed that it could not cause any harm to people at the moment, but Yun Yeyao and the others had better not stay here for a long time.

Xiao Rou and Phantom's voice was hoarse to varying degrees when she spoke just now, accompanied by a coughing sound. Now that I think about it, it has nothing to do with crying, but it should be the result of the suffocating smell.

After everyone left, Mo Haiyou did not immediately check the corpse, but took the candle that was about to burn to the root, and searched the entire room for the source of the smell.

He covered his nose and searched the corner of the room with the candle flame, which suddenly rose up a yellowish smoke as it approached the corner of the wall at the staircase, which soon vanished.

After Mo Haiyou confirmed the location, he removed the candle flame and found that a small piece of wall mud had fallen from the burned place, and in the middle of the wall mud, it was obviously artificially dug up a little. He drove the candle flame deep into the interior of the dug place, and sure enough, a darker yellow smoke rose again, and the forensic doctor quickly turned his face away to prevent the smoke from touching him.

What he discovered was a very fast-acting poisonous gas, which could cause ulceration of the respiratory tract, edema of the lungs, and suffocation to death after sniffing into the body. (In the future, the author will conceal the name of the poison whenever he mentions the murder of people with poison, so as to avoid imitation and exploration, please forgive me.) ）

Obviously, the poison gas was pre-poured into this hole in the wall and then sealed. The location of the hole in the wall is exactly the height of a person's hand, Mo Haiyou gestured by himself, and it was almost lower than the height of his hand holding the wall, indicating that the girl had a greater chance of being recruited.

This may be a random killing trap, that is, the murderer's target is everyone in this room, anyone who falls into the trap Mo Haiyou glanced at the corpse of the girl at his feet and thought. If anyone could do it, then everyone here was a threat to the murderer? But why didn't he just fill the room with poison gas? If this kind of thing smells, no one should be immune.

Therefore, Mo Haiyou ruled out the possibility of random killing, first, the murderer used poison gas to kill people must be to save time and strength trouble, there must be a specific opportunity that he can use, this opportunity to lead a person who is dangerous to the murderer to the wall, poisoned to death.

Second, it seems that the murderer closed the entrance and exit of the passage not to trap them inside, but to allow them to find and rescue the survivors, and the lock of the wooden plank outside just now was obviously not locked, otherwise, it would be difficult for him to open it in such a short time with his scalpel.

Third, if the above two speculations are true, then at the time of the homicide, the other survivors must have been some distance from the location of the victim, and the murderer chose the place where the drug was hidden near the entrance and exit, which should also be to prevent others from being attacked.

Analyzing this, Mo Haiyou looked back at the man lying on the edge of the table, he did not die of poisoning, which can be a good proof that the poison gas did not volatilize around the table, and the murderer did not want to kill everyone.

The girl's body now does not have to waste time researching, and the cause of death can be determined by looking at her face and the inside of her mouth. Mo Haiyou walked to the man lying on the ground on the other side, he leaned close to the candle flame to take a closer look at the man's condition, and probed under his nose with his hand. Then he put the candlestick on the table, and while it was not extinguished, he picked up the man and walked outside.

Just as Mo Haiyou left the hidden room, there was a black shadow in the passage that was also coming in the direction of Mo Haiyou, who was he? What does it have to do with the case?