"Gu?" Su Mu was stunned by this word for a while before realizing that this Nanzhao country should be the legendary Miao Jiang, and it seems that the people of Miao Jiang can refine Gu as a legend that has existed since ancient times.Although he kept a wait-and-see attitude towards such mysterious things, he was subconsciously careful.

He has no doubts about the wisdom of his ancestors. Even if this Gu worm is not as evil as in the legend, there must be a reason why it has been passed down for thousands of years.

"When the body was found, it was headed towards the door...is this here?" Su Mu looked carefully at the door. Most of the things in the house had been burnt black, and even the floor was covered with a thick layer.Thick soot, and because it needs to be washed with water when fighting the fire, no obvious traces have been seen for a long time.

But there was a smell in the air that made him feel a little pungent.Before he could tell what the smell was, Lu Lingjue said, "This room smells so strong of tung oil. You can't use tung oil to make spices. It's absolutely abnormal."

"Tung oil?" Su Mu wiped a handful of scorched black marks on the ground, put it under his nose and smelled it, and the pungent smell was indeed stronger.

"Yeah, isn't this the smell of tung oil?" Lu Lingjue squatted beside him, rubbing her nose and saying.

When he saw that there were almost no usable traces on the ground, and he was about to sigh in frustration, Su Mu raised his head and asked, "Are there any vinegar and wine sellers here? It doesn't matter what kind of wine or vinegar."

Yang Ke, who followed them in the Fuya, is now in his thirties, and he can be regarded as a leader in the Fuya who can talk. He was the one who brought people here to inspect the scene before, and found nothing.Therefore, he didn't think that the two young men who looked a round younger than him could find out anything, and they were watching leisurely from the sidelines.

"Yes, but I don't know what Mr. Su is going to use it for?" He cupped his hands and asked.

Su Mu started to feel embarrassed again.

Wine and vinegar are highly volatile and can dissolve the blood in the ground before volatilizing to the ground. How does he explain this knowledge point that modern people may not understand?

Lu Lingjue was already used to it, so he didn't ask any more questions, but waved his hand and said, "Don't ask, just get ready."

Although Yang Ke was still puzzled, he could only press the button. When he was about to leave and go shopping, Su Mu stopped him suddenly.

He was quite surprised that a few pieces of silver were stuffed into his palm by Su Mu.

"You can't take advantage of the big brother." Su Mu smiled, "I don't know what the price of wine and vinegar is in this city, so I will give more first, and treat the rest as I invite everyone to drink."

Yang Ke was dumbfounded for a moment, the pampered young master from Capital City was too easy to talk to, so he responded and went to the nearest shop to buy wine and vinegar.

On the other side, Su Mu and Lu Lingjue had cleaned up the ashes on the ground a little, revealing a flat ground.

Yang Kejiu is Jiang Prefecture's unique sweet-scented osmanthus brew. As soon as it is opened, the aroma overflows. Lu Lingjue is so greedy, but Su Mu subconsciously held his breath.

After what happened before, he felt that he might even have to smell less smells, and if he gets dizzy for a while, he might delay things.

Under Lu Lingjue's eager gaze, Su Mu mercilessly poured a jar of wine onto the land in front of the door.

"Yu Zhi—you!" Although Lu Lingjue understood that Su Mu would not do these things for no reason, she still felt sorry for the poured osmanthus brew.Yang Ke next to him was also stunned, completely unaware of what Mr. Su was doing.

"Although it's a bit wasteful...but the land in front of the door is really big, so it's better to be cautious." Su Mu patted Lu Lingjue's shoulder, "Come on, help me pour out the vinegar too."

Lu Lingjue still didn't know why, but she obediently followed suit, and poured down a whole jug of vinegar where Su Mu poured the wine.

Now the sour smell and the smell of wine mixed together, and the smell in the room became strange. Lu Lingjue covered her nose and asked, "Yu Zhi, what are you going to do?"

Su Mu didn't answer, but just stared at the ground. After a while, when Lu Lingjue began to wonder if Su Mu was stupid, Su Mu spoke from the side.

"look."

The two onlookers looked towards the ground, only to see a layer of dark matter floating up from the ground at some point.

Lu Lingjue took a step forward, knelt down on the ground and wiped it lightly with his hand, and there was a trace of blood on his hand.

"What... what is this?" Lu Lingjue looked at Su Mu blankly, "Is this blood?"

Su Mu was amused by his reaction, and shook his hand in front of him: "Otherwise? Didn't wake up?"

Yang Ke was also amazed. They had looked carefully before they came here, but they didn't see such a large amount of blood on the ground. Mr. Su just poured some things down, so why did these things appear.

He felt ashamed of what he had just thought, and said sincerely to Su Mu: "There are so many bloodstains here, we were negligent."

"The bloodstains seeped into the ground, and the bloodstains on the ground were washed away by the flood water during the firefighting. Naturally, it is difficult to find." Su Mu waved his hands, "I just tried it.Thinking that there is really so much blood here."

A large area of blood was near the door, and it seemed to be on the upper body and close to the head.Su Mu touched his throat, and thought of the almost burnt corpse, and had a vague guess.

"Did you find any murder weapon when you came here for the first time? For example, a dagger?" Su Mu started pacing in the room, looking at the surrounding environment.

"No, we searched all around the house, but we didn't find any murder weapon. But—" Yang Ke walked to the window, and after pulling the window with its crumbling frame, there was a river outside the window, "If there is really a murder weapon, and it is very likely that someone has thrown it into the river, so it will be very difficult to find it again."

Su Mu poked his head out to take a look, and it turned out to be a house facing the river, and there were no steps to settle on.

But when he retracted his hand against the window frame, he suddenly felt a sticky touch on his hand. When he looked down, he found some green moss on the center of his palm.

How could there be moss here?

When Su Mu approached the window frame, he saw nothing but a trace on the lower part of the window frame.

He leaned out half of his body and inspected the wall facing the river, only to see that there were indeed some blue and black moss on the place near the water below.

"Chenchu, help me." Su Mu grabbed Lu Lingjue's hand, almost half of his body was hanging out of the window, he stretched out his hand to reach it, and managed to snuggle a little, so that Lu Lingjue was not taken out by him.

"Huh?" He compared the two moss marks, but felt that something was different.

The moss on the wall is brownish-green with many small yellowish thorns, while the moss on the window frame is partly brownish-red with fine and small particles, not the same kind.

Both Lu Lingjue and Yang Ke followed for a while, but couldn't remember where they had seen this brown-red moss, so Su Mu could only give up temporarily, and went to the nearby shop to buy some oil paper for food to wrap.Put it in your sleeve and take it away.

Except for the traces of blood and moss that appeared, the house could be said to have been burned cleanly, and the wooden trusses had collapsed a lot, and the few people could only return to the government office for the time being.

As soon as he returned to the government office, Su Mu went to the morgue again, and re-examined the charred corpse. After making a basic guess, he especially carefully looked at the throat of the corpse.There are traces of dry and cracked wounds, but there is still a deep and long wound.

Su Mu stretched out his hand and pressed it lightly, and it was indeed stained with some blood that had dried up.

"how?"

Just when he straightened up and was about to look elsewhere, Liu Xiaoran's voice suddenly sounded behind him.

"Liu Shaoqing?" Su Mu turned around, very surprised, "Have you finished the investigation?"

"Yes." Liu Xiaoran replied flatly, "There are not many people to investigate." After speaking, he looked at Su Mu, "Where are you here?"

Lu Lingjue answered from the side: "Yu Zhi used a very miraculous method and found a lot of blood in that room. There is something very strange about this person's death!"

Su Mu also nodded, and showed Liu Xiaoran the wound on the corpse's throat: "This man has a deep wound on his throat, it's just because of the burn, there will be some dry and cracked marks on many parts of the skin.The upper hair is most likely to burn, and the head is most likely to be burned severely, and the wound is difficult to distinguish."

"But if you add the bloodstains on the ground, it should be basically certain that this person did not die because of an accidental fire." Su Mu lowered his eyes, looked at the almost horrible corpse and continued, "And Chen Chu is still alive.The room smelled of tung oil, if someone poured it on purpose, those people might have been seriously injured and burned to death."

Liu Xiaoran was not surprised to hear that, he thought this case was not ordinary, but today he interviewed many people here, and they all said that Mou Xun did not have any unusual behavior before his death, and he did not mention any enemies.Time is also unpredictable.

"Why is that Silla girl related to this matter?" Su Mu asked after pulling up the white cloth to cover the corpse.

Although he also knows that it is a bad habit to be preconceived, but after all, Silla is a person who has been with Su Qi all the way, and it is also the Jiang Prefecture that Su Qi deliberately asked him to come to. Now that this case is related to her, it is really hard for people to believe this.Everything is a coincidence.

Liu Xiaoran understood Su Mu's considerations, so why not him.

"Xilla had an appointment that day with the second son of the shopkeeper of Kaichang Bufang Wang. When he went to pick her up at the door that day, he happened to meet Xinluo coming out. He saw the shadows of two people in the shop, and then someone opened the shop.The door sent Silla out, and neither of them was present when the fire broke out, and there were other witnesses to this matter." Liu Xiaoran shook her head, "If Mou Xun was stabbed and then set on fire, then it would be even more so.It was Silla who did it."

There is no time to commit the crime, and there are more witnesses. Even though Su Mu is still a bit unwilling, he can only admit that Liu Xiaoran's words are very reasonable, and Silla will not be the one who did it.

The author has something to say:

The case of Jiang Prefecture is very simple~ The highlight is elsewhere ⊙▽⊙