"I see, after the case is over, you reopened the passage between here and the hell house, and rely on it to enter, and Angu used the ruins to hide the last secret entrance. As an exit to protect the children in case something happens. Mo Haiyou said: "Most of these children know about the case five years ago, with their mental condition, it is impossible to enter the house of hell, there are many bad memories there after all." ”

"But there is one thing I don't understand, how did you avoid me and Xiao Yao's eyes five years ago and hide the rest of the children?"

The old man smiled bitterly, squatted down to Yun Haizuo (next, Mo Haiyou, who was acting in the house of hell, we will all call him Yun Haizuo, and after this case is over, some of Yun Haizuo's secrets will also be made public) and said, "It's hiding here!" What's so weird? ”

"No, there is only a thin floor between here and the ruins on the ground, and when I came in just now, I carefully observed the appearance of the entrance, do you think that with my and Xiao Yao's ability to solve the case, such a simple entrance and exit will not be found? You still haven't been honest with me, the last hidden space is not here at all. ”

The old man was choked by Yun Haizuo's words, Yun Haizuo stood up and said, "You deliberately didn't turn on the headlights, thinking that you could deceive my eyes in this way?" The furniture here is old, but there is not much damage to the walls and floors except for dirt and dust, and I think it was probably after the case was over that you secretly dug up this basement for the children to live in temporarily. ”

In fact, from the first moment he entered here, without looking around, Yun Haizuo already understood that this was not the hidden space he was looking for, he didn't debunk it before, just to further understand the situation of the children, he knew that there must be children left in the serial murder case back then, but the people who took care of them were too deeply hidden, what was the meaning of Mrs. Angu's letter?

The best destination for these children is to be taken care of by state agencies, but back then, it was clear that he and Xie Yunmeng had such a plan, but they were still exploited by some people, these people did not include the old man in front of him, and the person who claimed to be An Gu, or it was because of the threat of these people that the old man and An Gu decided to hide the children, and even the police did not let them know.

Now the most important thing is to figure out who really wrote the letter? The old man said that it was left by the dead Mrs. Angu, but Yun Haizuo didn't believe these words, he questioned it, and reached into the built-in pocket of his suit to fumble for the letterhead, what did some of the contents of the letterhead mean, he needed to ask.

As soon as his fingers touched the inside of the pocket, Yun Haizuo was stunned, the pocket was empty, he quickly opened the black handbag in his hand, there was nothing inside, the old man saw that Yun Haizuo's expression was wrong, and asked, "What's wrong with you?" ”

"Letterhead... It's gone. ”

"Stationery? Is it Mrs. Yasuya's letterhead? Yasuya interjected.

Suddenly, Yun Haizuo looked at An Gu with a sharp look and asked, "Where did you start following me?" ”

"I, me?" Angu flinched visibly, and then replied, "I followed you after I saw you on the road here. ”

"No, you're lying!" Yun Haizuo stood up abruptly and said, "You are not the person who Mrs. Angu said in her letter that she would answer me, and you," he pointed to the old man and the children and said, it is not the person who takes care of them here, I have always wondered, why are you here, the children still look so timid, when I came in just now, I noticed that there was a movement inside, who did you probably hide in the hell house? ”

"When I was at the grocery store, I saw that the original entrance and exit were covered by old furniture and broken wooden boards, and you disguised it as if the furniture and wooden planks naturally collapsed there, but there is one thing you overlooked, it is impossible to demolish the house without demolishing the grocery house, and the things in the grocery store are still the same as before, indicating that the entrance and the ruins in the house are not caused by demolition, but destroyed by you, in order to hide this basement and let the children stay with you."

"I don't know what your purpose is. But one thing is certain, whether the letter was written by Mrs. Angu or not, the writer must have discovered the danger, so he spared no effort to attract me to come here again, although you spied on the letter, but it is not complete, I don't know when I met with the person who answered it, so I think that Angu must have been watching me in the vicinity of my meeting, and found an acquaintance driving a car on the road in the middle of the night, this probability is almost equal to zero, isn't it? ”

In one breath, the suspicions of the old man and An Gu were exposed, Yun Haizuo's right hand was still in the handbag, this action was not taken seriously by the other two people, and the old man defended: "Mr. Forensic Doctor, I said at the beginning, we didn't know that you would come back at this time, and An Gu would go out in the middle of the night every day, and his mother worked in the hotel and could only go home in the middle of the night, so he would pick up his mother along the road every day." ”

"Besides, what purpose do you say we have, there is not even a penny of property here, and the daily expenses of these children are also a bottomless pit, if it is not for the fact that we do not want to give up their lives, what are we staying here for? What you said just now really made me very sad old man, you also know what happened in the past, from the beginning to the end of the murder case, who was the most cooperative person with the police? Isn't it also an old man?! ”

As the old man spoke, he began to get excited, and tears even flashed in his eyes, and An Gu kept his head down on the side, silent, Yun Haizuo pondered the old man's words, and turned back to ask An Gu: "Which hotel does your mother work in?" ”

"It's the only hotel just past the main road! You can see it along the way. ”

"What does she do?"

"Hygiene for the night shift."

"Does she live in this place with you?"

Yun Haizuo first questioned, and then a series of questions were thrown, making the old man and An Gu look at each other, and they began to retreat to the door of the room quietly, and the answers to Yun Haizuo's questions became vague.

Yun Haizuo didn't move his steps, he already knew very well in his heart that Mrs. Angu's letter must have been left in the hotel, when he left, he clearly remembered that Aunt Hygiene was cleaning at the door of the guest room, and the letterhead was taken by her nine times out of ten, and it was possible that it had already reached Angu's pocket.