The King of the City

"What is luminol?" Xia Miaoyan asked.

"Luminol is a chemical reagent that can detect blood. No matter how clean the blood on the crime scene is, as long as luminol is sprayed on the ground, where there is blood on the ground, it will emit a pale green light. ." Zhang Tian'an explained.

"Oh, so amazing." Xia Miaoyan muttered.

"With luminol, you can check whether Xiaojian's blue clothes have been contaminated with blood. This bottle of luminol can be very useful." Miao Yunfei smiled slightly.

"Knock down..."

As soon as Miao Yunfei finished speaking, the wooden door of this room was knocked on without warning.

The sudden knock on the door startled the three girls. Miao Yunfei, who had just opened the cap of the luminol bottle, shook her hand, and the bottle in her hand came out.

With a click, the bottle containing the luminol fell to the ground, and the luminol splashed on the ground.

But the three girls didn't care who knocked on the door, because when the luminol fell on the floor of the room, the luminol reacted, and a large area on the ground glowed with a pale green light.

……

PS: Brothers, ask for all kinds of support, thank you. .

459 Who knocked on the door [2 more for subscription]

This bottle of luminol was going to be given to the forensic department by Miao Yunfei before, but when the other party had it, it was always in the bag.

And Miao Yunfei is a person who doesn't like to use bags, and she never remembers it. When Xia Miaoyan was looking for a power bank, she asked what the bottle of liquid was.

Zhang Tianan told her that it was luminol, also known as luminol.

At the crime scene, no matter how the murderer cleans the scene, as long as the place where the blood has been splashed with luminol is sprayed, the place will show a pale green light.

Just finished explaining to Xia Miaoyan, because someone knocked on the door, the bottle of luminol fell to the ground, and a large area of ​​light green light appeared on the ground, which made the three girls stunned, and no one spoke for a while.

Luminol spilled on the ground spreads on the ground, exuding a pungent smell, which is also irritating to the eyes.

Where the luminol spreads, there is a faint green light, which is already obvious, that is, once, in this room, the ground was stained with a large amount of blood.

Why is there so much blood in a hotel room?

Miao Yunfei and Zhang Tianan's thoughts were very chaotic. There had been so much blood on the floor of this room, which means... someone was killed in this room, and the blood of the deceased stained the ground?

"Knock knock!"

The knock on the door that scared Miao Yunfei's luminol off the ground just now rang again.

The three girls looked at the door almost at the same time.

The entire hotel was powered off, and everyone went back to their rooms. At this time, who would come to the fourth floor and knock on the door?

Miao Yunfei took two steps towards the door and asked tentatively, "Who is it?"

"Knock knock knock..."

The person standing outside the door did not speak, and responded to Miao Yunfei with three crisp knocks on the door.

Miao Yunfei turned her head and looked at Zhang Tiannan. Someone knocked on the door, but that person didn't speak. This is very strange.

Xia Miaoyan clenched her hands nervously and stared at the wooden door without blinking, for fear that the person outside the door would suddenly rush into the house.

"Who is knocking on the door?" Zhang Tianai also asked.

At this moment, Miao Yunfei's cell phone was glowing in the room, and there was a faint green glow on the ground behind the three women.

There was a death in this room. The deceased was lying on the ground in this room not long ago. Thinking of this, Xia Miaoyan was horrified, for fear that when the three of them were staring at the door, when they looked back, they saw that there was a A dead man appeared behind him.

"Knock knock knock knock..."

This time, the knock on the door was hurried. Five times in a row, the people outside the door seemed to be unable to wait and wanted to open the door and walk in.

Miao Yunfei and Zhang Tianan looked at each other again, Miao Yunfei said to Zhang Tianan softly, "Officer Zhang, don't worry so much, take the gun out of the bag."

"Okay..." Zhang Tian'an immediately turned around and walked towards Chuang's head cabinet.

Miao Yunfei and Zhang Tianai didn't come out with guns at all. Miao Yunfei deliberately spoke to Zhang Tianai in a low voice. In fact, this low voice was relatively speaking. It was not loud, but it could be heard by people outside the door.

When Zhang Tianni walked towards the head cabinet of Chuang, there was a slight sound of footsteps outside the door. It can be judged that the person who knocked on the door was walking away slowly.

Miao Yunfei lightly stepped forward and put her ears on the wooden door. After hearing the footsteps outside the door getting farther and farther, Miao Yunfei breathed a sigh of relief. Fortunately, the one outside the door People are gone.

The person who knocked on the door was gone, but many questions emerged in the minds of the three girls.

What's with the blood on the ground?

Someone was killed in this room?

Who is the deceased?who killed him?

The most important point, who is the person who knocked on the door just now, is it the shop owner?

The three women exchanged glances for a few seconds, and Miao Yunfei said, "You said...the knocking on the door...could it be the sturdy shop owner?"

"It's very possible..." Zhang Tiannan nodded, her face nervous: "Looking at the physique of the shop owner, he must be very strong. Sister Yunfei, if you join forces with me, you may not be able to beat him."

Miao Yunfei breathed a sigh of relief: "Yeah, but fortunately we just said we had a gun on purpose and scared him away."

"Wouldn't it scare him away, he went downstairs to get the key?" Xia Miaoyan said suddenly.

Xia Miaoyan's words made the two girls quite speechless. She was relieved just now, but when Xia Miaoyan said this, her heart was raised again. . .