Lang Xiaobai's expression changed suddenly, and he ran to the corridor with an arrow, followed by two detectives, but Cheng Zhenhua did not move, just looked at the ground with cold eyes, his face was a look of loneliness and sadness, Yingzi looked at him, his heart was full of sympathy.

Lang Xiaobai rushed to the sixth floor and kicked open the door of Cheng Zhenhua's room.

"Come true! You set the fire in your room, right? You want to destroy the banknote and burn the 60,000 yuan bill! Good! Agent! Catch him, don't let him run!"

When Cheng Zhenhua heard this, he immediately jumped up, and at the same time, two detectives immediately ran forward and held him firmly.

"Hey, hey!" Cheng Zhenhua sneered a few times, and there was a cruel coldness in his laughter, which made people have an indescribable fear, like a demon's cruel smile. The weak and honest appearance he pretended to be just now was swept away, and it was replaced by his true face as a murderous demon, and that expression was daunting.

This kind of scene made Yingzi creepy, and she couldn't help but tremble, and she couldn't help but shout in her heart: "Oops! It turns out that the murderer is really him!"

She screamed in her heart, her eyes still firmly fixed on Cheng Zhenhua's terrifying face.

The nervously sensitive Cheng Zhenhua looks gentle and weak like a girl on the surface, and it seems that even an ant can't bear to hurt him, who would have thought that his heart would be so terrifying. When Yingzi thought that the original human heart was so unfathomable, she couldn't help but feel an indescribable sadness and loneliness.

She looked at him for a while, and then followed Lang Xiaobai and the detective to the sixth floor. There was billowing black smoke coming out of the window in Cheng Zhenhua's room, and Lang Xiaobai exerted his strength

Bump, "Bang!" With a bang, the door opened, and immediately a puff of smoke rushed towards the three of them, making them unable to breathe and their eyes aching.

Fortunately, the fire was not too big, and there was only smoke all over the house, but there was not much flame. The three of them endured the pain of the smoke, and used their feet to step on the burning things desperately, and it took a lot of effort to extinguish most of the flames. They looked around, only to see that the walls, floors and roofs were only a little blackened, and there was no fire, only some items with a paper texture were burned, the hat box on the small table was made of horse dung paper, which had been burned to white ashes at the moment, but it still maintained its original shape, and it had not changed at all, Lang Xiaobai took a closer look: "Ah! This bad thing!" He bit his lip in anger.

"What's the matter? Lang Xiaobai. One of the agents asked curiously.

"Look! The 60,000 yuan bill was in this cardboard box, neatly burned to ashes. ”

"Ah...... Yes! You can still see the number!"

"It's the right pair with the one in the notebook with the banknote number, and it can't be wrong."

"But when did that guy set this fire here?" The agents bowed their heads in deep thought.

"This is a mystery that has yet to be solved, but ......" Lang Xiaobai carefully examined the ashes in the cardboard box and said: "Look at that guy is young and mild-looking, he doesn't look like a villain, but who knows that the essence is a heinous demon, not only shot Zhou Jianwen to death with a gun and stole the huge amount of money, but also scheming and extremely cunning!"

He had thought about how to destroy the incriminating evidence once the matter was revealed. The box, the hat, and the paper around it had already been soaked in the flammable potion. However, he neglected a problem, the paper soaked in the potion, and the ashes turned into after burning maintained its original shape. It was for this reason that his ploy failed. ”

"This guy painstakingly researched the strategy, but I didn't expect it to be leaked by this pile of banknotes!"

It can be seen from this that a person must not do bad things in his life, because no matter how hard he racks his brains and carefully plans his tricks, no matter how detailed he is, there will always be flaws. He never dreamed that it was these ashes that completely bankrupted his whole plot!"

But how did the fire start? Did he leave the room with us by throwing a cigarette butt or a match here?" Yingzi was puzzled.

"No, he didn't have that opportunity, and he didn't smoke at the time. Not!...... What did you do to set the room on fire?......

Lang Xiaobai thought hard. At this time, he saw Yingzi smiling and gave him a look. When I looked into her eyes, I realized that she was referring to the glass bottle of water that was placed on the windowsill.

Lang Xiaobai immediately understood what she meant, he raised the water bottle to a high place, and said, "Aha! The mystery is solved, and it was this thing that started the fire. ”

"Huh? It's water?......" The agent was amazed.

"Water also has the effect of convex lenses (e.g. magnifying glasses, reading glasses). The sunlight shines on the water bottle through the water bottle, and the light converges into a focal point on the hat box, and there is a pair of black gloves on the hat box, because the black is very easy to absorb heat, so soon the temperature reaches the ignition point, and the fire burns. That's what he put the water bottle on the windowsill for. Yes! It's so ingenious!"

"Ahh The detectives were also amazed.

"This cunning guy still has this hand. But, Lang Xiaobai, how did you find out?"

"No, I didn't find it, but this one."

Lang Xiaobai said, staring at Yingzi. There was a gentle smile in his eyes, as if to say: You are really a capable female detective.

At this time, two beautiful red clouds rose on Yingzi's face, and her beautiful face was like a rose, delicate and beautiful.