After Han Dada'er slipped away from the hospital, Mei Ruohong guessed that he must have gone to the epidemic prevention hospital to examine the corpse. Chen Feiyang blessed his soul and told Mei Ruohong to reassure her, so he borrowed a bicycle from the doctor in the hospital and rode to the epidemic prevention hospital, just in time to catch up with Han Da'er to go back.

Chen Feiyang had a wound on his hand, the road was full of potholes, and his hands were so bumpy that he was holding the handlebars, the wound was oozing blood, and the bandages were already red.

Seeing this, Han Da'er hurriedly said:

"You come down and I'll ride, your wound is ruptured again, send you back to the hospital first, and then I'll go to the explosion site!"

Chen Feiyang shook his head and played with the rattle, and said:

"Don't mind Master! I can't explain to my master when I go back by myself, I went with you, you are full of injuries, or I will ride a bicycle to carry you! ”

The two argued for a while, and in the end, Han Daring rode a bicycle and carried Chen Feiyang to the scene of the explosion.

Han Daring knew that this studio was rented, so he first found the home of the owner of the studio. The owner also lives nearby, found that his house was on fire that night, and he worked very hard to fight the fire, Han Daring came to visit late at night and did not wear a police uniform, the owner was depressed and didn't want to deal with it at all, but when he saw Chen Feiyang wearing a police uniform on the side, he knew that it was the two deputy masters who came to investigate, so he quickly dressed and welcomed the two into the house.

Han Daring chatted with the owner for a while and learned about the situation, and then came to the bungalow at the scene of the explosion. At this time, the three-room house in the studio had been scorched black by the smoke and fire. Fortunately, there were not many things in the studio, and the surrounding neighbors put out the fire in time that night, so the fire was quickly extinguished, but it only burned the studio and did not affect the surrounding houses.

At this time, there were several yellow ropes outside the painting, which should have been stopped by You Fei and others to warn outsiders not to enter the scene. But there is only a yellow rope at the scene, and no one is guarding it, if someone really wants to do it, how can a few ropes stop it.

Fortunately, at the scene of the fire, the house was scorched and blackened, and it was terrible to watch, burning the walls of the house, and no one would go in to snoop, and the people heard that a male corpse was found inside.

There are still a lot of traces of water on the ground outside the house, which is very slippery mixed with the dirt on the surrounding ground. Chen Feiyang took out two flashlights, and the master and apprentice stepped on the mud with flashlights, ran over the yellow rope, and entered the burned studio similar to the brick kiln.

The door outside the studio was leaning crookedly against the door frame, and the wooden door in the inner room, due to the impact of the dust explosion, had been broken in two by the strong air flow and thrown on the ground. Because the studio outside here is not a brick floor, but a gray floor, even after the fire and water are splashed, it still looks relatively smooth, but there are a lot of fire ash debris and water traces all over the ground. Ash is cement, in the past, people added a foreign word to many things invented by the West, matches were called foreign fire, and cement was called ash.

Chen Feiyang looked at the door frame of the outhouse, most of the remaining latches on the door frame had been burned to char. He reached out and fiddled with the latch a few times, standing up the remaining latch and stabilizing it, and then slapped the door frame with his hand, not only did the latch fall, but even the charred wood on the door frame broke and fell with a "click".

Han Da'er shouted in a low voice:

"What are you doing?"

Chen Feiyang coughed twice while dusting off the charcoal ashes, and said with joy on his face:

"Master! You're right, this latch does fall down and get stuck in the latch when it closes hard! ”

Han Daring nodded, squatted down and shone the wooden door of the inner room on the ground with a flashlight, the wooden door was splashed with fire and water and broken in two, and it was difficult to find traces of the head of the foreign fire tied under the door. Han Daring stretched out the broken door panels together.

Chen Feiyang saw that the master wanted to build the wooden door, so he wanted to help, but Han Daring saw that his hands were injured, and he inevitably groped for bacteria at the scene to cause infection, so he didn't let him do it, only let him play the flashlight on the side.

After Han Daring put the wooden door together, he saw that there were traces of burning by the strong air flow that burned instantaneously all around the wooden door, but there were no burning marks in the center and below the wooden door. It's just that after the wooden door was shattered, it was hit by broken glass and flames from the secondary explosion in the outer room, and some of them showed signs of damage and burning.

It seems that it is exactly the same as Han Da'er speculated, the male corpse was leaning against the door at that time, and he was sitting against the wooden door. Therefore, when the dust in the inner room exploded, the traces of air impact and burning were only around the wooden door, and the center and bottom were covered by the male corpse, so even if it was broken by the strong air current, there were no burn marks in this position.

Han Daring looked at the outer room again, and the easels and still life tables in the room had been burned to pieces. Even if there was a thin stumbling rope that was once tied to the still life table as a trap, it was burned out by now.

There were many oil paintings hanging on the walls, and many sketches of human figures nailed to them, but by this time the sketches had almost burned out, and most of the oil paintings were only framed.

Originally, there were still a lot of semi-finished oil paintings on the wall, and when the explosion occurred, Han Daring grabbed a stack of them and blocked them in front of him and Chen Feiyang, and later was hit by the blast current, some were broken and scattered, and some were blown to the corner of the room.

Among the scattered semi-finished paintings, some were soaked with water, some were half burned, and only one was blown into the corner by the air current, which was still spared. But because of the splashing of water during the firefighting, the canvas has been soaked in water and covered with charred plaster.

Han Daring put the black painting aside, shone it with a flashlight, tore a piece of cloth from his clothes, and gently wiped the oil painting, hoping to wipe off the charred ash on the painting. After a few insertions, I found that after the painting was soaked in water, the paint seemed to be loose, and a large piece fell off when I wiped it.

Even if the oil painting was soaked in water, the solidified paint was not so easily blistered, but as soon as he wiped the paint with a cloth, a large piece fell off, and he smelled and wiped the cloth stained with paint, and found that it was not the smell of oil paint, with a slight milky smell, but more like the smell of gouache paint.

Gouache paint is different from oil paint, and it is also different from watercolor paint, sketching and gouache painting are the basis of Western painting, and general painting starts with sketching, and then comes into contact with gouache painting. Gouache and oil painting are similar in some places, but they are different in nature, and it can be said that gouache painting is the basis of oil painting.

Gouache paint is also different from oil paint, although it can also be after the paint solidifies, there is a stroke like a bell oil painting, but this gouache paint is very afraid of water, and it will fall apart when soaked in water. And even if there is no water, if the paint layer is thicker over time, it will crack, and it will not last as long as an oil painting.

Han Daring carefully wiped off the gouache paint with a cloth, and what was originally a portrait of a sleeping woman turned into a portrait of a thin man with a paintbrush in his hand.

In the original painting, the woman painted with gouache was covered with water, and her expression was serene. But underneath the gouache painting, the man painted in the oil painting layer has a thin face, holding a paintbrush in his right hand, his eyes are staring ahead, his eyes are cold, as if he is confronting the person looking at the oil painting, and the appearance of the man in this painting is very similar to the male corpse found in the studio, like a self-portrait of the man.

After Han Daring saw the oil painting, he was even more determined to speculate about the identity of the male corpse.

He put the painting aside, got up and walked towards the back room, which was a windowless hut by flashlight, and because it was relatively airtight, the smell of burning was heavier, and it never dissipated.

There was no furniture in the house, only a wooden table, which had been shattered by the blast wave of the explosion and burned by fire, so that it had become a pile of charred black stumps and broken wood. Looking up at the ceiling hanging a noodle pocket that only burned to the ground, it was just as You Fei said. Sure enough, there was a piece of phosphorus paper for drawing foreign fires stuck to the ground at the door, which had been blackened by the fireworks.

The air waves of the explosion and the impact of the instantaneous flames of the city-building showed that a huge force was released from the direction of the wooden door. The corpse that was originally sitting on the ground against the wooden door was pushed out of the inner room along with the wooden door.

Han Dada'er found the two iron lumps that You Fei said on the floor of the inner room, one was like a weighing stone, weighing five or six pounds, which should have been hung on the edge of the smashed wooden table in the room, half of the iron lump was hanging on the outside, and the upper end was connected to the rope, and the pocket of the noodle pocket was tied with a live buckle.

Balances such as tables or chairs under the iron mounds are bolted from under the door to the table in the corner of the wall with a very inconspicuous thin triprope, probably a strong and inconspicuous silk cord.

If someone tries to push the door outside the door, they will touch the string and pull the table where the small iron lump is placed, and if they move slightly, the iron lump will lose its balance and fall. Tear open the pockets of the noodles and let the flour fly all over the room!

Everything was just as Han Daring had guessed before.

In fact, Han Da'er thought that the small iron lump and the thin wire triprope that passed under the door were completely unnecessary. Because there are no windows and only one door in the room, if the murderer wants to set up an automatic ignition mechanism, he can place white phosphorus in the room, and then plug the gap under the door to prevent air from circulating.

In that way, as long as someone pushes the door, the outside air suddenly enters the house, and the temperature difference changes, which will ignite white phosphorus. As for the flour pocket, you can switch to explosives, and if you put the fuse on the white phosphorus, it will ignite automatically, so why bother to make a dust explosion with flour, iron lumps, balances, and tripwires.

There must be some reason for the person who set up the mechanism, and he can't let the gap under the door be blocked!

Han Daring picked up another iron lump, which weighed about twenty or thirty pounds, and looked like an anvil that was padded underneath when striking iron. He saw that the anvil was very rough, with many uneven potholes, and if it was placed on the ground, it would be difficult to push smoothly even if the ground was smooth.

At this time, Han Daring turned around and looked at the ground of the outer room, and then thought about it, so he found a leftover easel leg as a stick, and pulled it on the ground in the outer room in the studio.

"Master, are you looking for it?"

Han Dada'er didn't answer, just pulled it with a wooden stick. Chen Feiyang had no choice but to find a stick and pull it among the ashes and debris on the ground. But Han Daring didn't actually want to find anything, but to remove the ashes and debris on the ground.

After cleaning the body with a wooden stick for a while, he quickly cleared the ground between the inner and outer rooms, and then said to himself:

"Sure enough!"

Chen Feiyang was a little dazed, so he asked:

"Master, you've found out!"

Han Daring said:

"Don't you want to know how the secret room in the back room is arranged, you go find something for me and I'll show you!"