"That makes the chef and the butler even more confusing." Liu Qiaopu continued: "But the murderer didn't expect that you and Xiaoxiao would temporarily decide to return with Xixi and make peace with us. And it was precisely the path he chose to commit murder. ”

"This caught the murderer off guard, and when you entered the ruins, he may still be there, and when he heard footsteps outside, he quickly left the cave in the rock."

When Liu Qiaopu said this, Yan Muheng asked: "But, doesn't the murderer still have to eliminate the footprints?" If he had just fled when we entered the ruins, wouldn't that be too time-sensitive? ”

Liu Qiaopu stood up, he walked to the edge of the wall and asked Yan Muheng: "Put aside the question of footprints and time, do you feel that the air here is much drier than in the rock cave?" ”

"yes!" Yan Muheng didn't understand why the old man suddenly mentioned the matter of air and walls. He looked at Liu Qiaopu a little stupidly, waiting for him to continue.

Liu Qiaopu pointed to the crack on the wall with his finger and said to Yan Muheng: "Come here, pick it with your fingers and see, what's in here?" ”

Yan Muheng immediately walked over, he put a finger into the crack, picked it hard, and then retracted it, and found that the nails were all gray-black, that is, like dirt and powder. Yan Muheng looked at it carefully, and then suddenly realized and said, "This is sand? ”

"Yes, it's sand, someone recently buried the sand between the wooden walls and the rocks, the sand absorbs water very well, and the water vapor emitted from the rocky holes is absorbed by the sand, so it will be extremely dry here."

"But how do you know that the sand has recently been filled in?"

"If you look closely, the sand on your fingers is already very wet, and it won't be long before the moisture returns here. The sand absorbs water temporarily, and when the water is sufficient, the entire wooden wall will be damp or even rot. ”

"So, the killer couldn't have buried the sand in it a long time ago. It seems to me that it is not only the people in this house who can do this, but also the people on the periphery, and there is no lock on the entrance and exit cover of the basement, so anyone who knows how to enter can bring sand and dirt here. ”

"The murderer's purpose may have been to keep the basement dry for a while, or to temporarily increase the humidity in the basement for a period of time afterward. If it's for the time being, I can't explain why, but if it's to increase the humidity, it's easy to explain, it must be for the corpse. ”

"The resurgence of sand and soil can quickly affect the entire wooden walls and the air in the basement, which itself is not well ventilated, and if the humidity is high, it is easy for the corpses to decompose and deform, making it impossible to distinguish their identity."

"You touch it again," Liu Qiaopu continued to guide Yan Muheng and said, "Is the edge of the crack in the wall already wet?" ”

Yan Muheng touched it according to the old man's words, and sure enough, the inside of the wooden wall was completely different from the surface, and the inside could already feel wet.

"Grandpa Liu, it's wet inside." Yan Muheng opened his mouth and said.

"Yes, these days, the basement will be stuffy and wet due to the resurgence of sand. The sand will not only affect the humidity here, but it will also make the air more uncirculated, so that the corpses placed here will decay faster, which may be the purpose of the murderer. ”

"Without you and your little action, the cook's body might not have been found this morning, and once it has been in it for more than 12 hours, it will be even more difficult for us to identify him."

"Now, going back to the question you just asked, will the murderer have a tight time to erase the footprints, the answer is no. Even if he escapes moments before you enter the basement, he can be determined to erase the traces in the rocky cavern. ”

"First, if you only see the corpse but not the murderer, you will definitely stay where you are and examine the corpse. Second, he only needs to slow down a little to make sure you don't hear the sounds coming from the rocky caverns. Again, the reason is that the sand absorbs not only moisture, but also sound from the rocky caverns. ”

"Thirdly, there are many ways in the rocky cavern, and even if you enter it, you will not be able to find the murderer at once. So, the killer has plenty of time to clean up the footprints and not worry about being found by you. ”

Liu Qiaopu did have a point, he easily explained the riddle that made Yan Muheng puzzled, and it also made the young man more cautious. He looked at the old criminal policeman for a few seconds before he asked, "Grandpa Liu, what should we do now?" Will you go back to the house and make peace with everyone? ”

"No, I need you to help me with another task, because there are fewer and fewer people in the house to trust, and we must avoid them as much as possible." Liu Qiaopu said, he looked at Yan Muheng meaningfully, and seemed to be still willing to give full trust to the tall man in front of him.

——

Eternal was scared, the old detective actually found the key to the matter so easily, it was so hateful! When the panic starts, it doesn't stop again. Even a person as bold as Eternal can't avoid the same state of mind as ordinary people.

Fortunately, they haven't found the body outside, and now that the grocery store owner and his wife are still asleep, it is impossible to detect the crisis. Eternal comforted himself.

The people he needs to protect, the things he needs to accomplish, will not stop because of the loss of one or two relatives, whether these relatives are important to him, or just tools, Eternal himself is a little vague.

Admittedly, the chef was sad when he died, but it was just a momentary emotion that burst out from the depths of his heart. Yes, Eternal believes that neither a chef nor a butler can make him as memorable as someone else.

'Yan Muheng's performance was so bad,' Eternal thought, 'Originally, he could have diverted the topic before the old detective could say some reasoning, but why did he listen to the old detective so silently?' This made Eternal a little in a trance, and he was in a trance with someone's feelings.

The so-called someone, only Eternal knows in his heart, and Yan Muheng or other people who know him don't know, so for the time being, even if the old criminal police find the right direction, it will not affect Eternal's future actions to a great extent, but he must be careful.

——

Yan Muheng felt palpitations again, were Liu Qiaopu's words testing him, or did he really trust him? The tall man's heart is completely bottomless.

'If only I could know where Eternal is, this person may be the one standing in front of the chef just now, but how can I explain this to the old detective in front of me?' In any case, I can't get out of it. Mental activity can't be maintained for too long, Yan Muheng must maintain his attention and listen to Liu Qiaopu with full attention.

What the old detective told him to do was actually very simple, which was to go to the food warehouse and bring the evidence left there—those live chickens into the villa and hide them, which, in the words of Liu Qiaopu, would be useful later.

But Yan Muheng couldn't, because he knew that someone had destroyed the evidence in the food warehouse, who was this person? Yan Muheng was a little vague, and even if he saw him destroy the evidence with his own eyes, the man was also very confused.

But faintly, there was a voice hidden in the shadows that kept reminding him: 'Don't look for evidence, it's gone, Eternal will find your ......'