Several policemen brought the chemical reagents and vessels Gong Yingxian needed as quickly as possible from X University.

Gong Yingxian asked someone to take the test strips and sweep them on the carpet at the exit of each elevator that had not been tested, and mark them.

Gong Yingxian set up bottles and jars on the table in the lobby.

Ren Yi looked at him curiously, but did not dare to ask, for fear that he would be distracted.

Yu Guang glanced at Ren Yi's Gong Yingxian, and while dropping reactants into the petri dishes, he explained: "Do you remember the explosives in Hongwu Hospital?"

"Remember, hydrogen peroxide and organic phosphorus, plus the ability to explode."

"There are still those things on Bai Chicheng, but according to your description, it should have been improved."

"I remember that thing could blow the marble floor out of the pit a little bit."

Gong Yingxian nodded: "Its explosion range is not large, but it is very powerful. It is killed, injured and poisoned, and it poses great threat to the human body. The two instruments transferred were too slow. I directly used metal salt agents to remove phosphorus and produce phosphate compounds. They cannot be seen by the naked eye, and can be seen by a microscope."

"Just use that test strip?"

"Yes. When you enter the airport, the security personnel will rub paper on your box and then use instruments to detect it. These chemical particles are very small and will form ions to drift around the human electric field. If you have been exposed to dangerous chemicals, although they cannot be seen with naked eyes, the instruments can detect it. After entering the hotel, Bai Chicheng has almost never left the room, but his accomplices have been in and out. After contacting him, his accomplices have walked through the carpet on a certain floor of the hotel, and then there will be residues on the carpet, so that we can know where his accomplices have been."

Ren Yi thought of something: "But, you just said that his accomplices had left the hotel in the morning, and Bai Chicheng had almost never left the door. So who was the one who kidnapped the hostage?"

"We'll know when we find the hostage."

Test strips on each floor were collected soon.

Gong Yingxian put them into a vessel with reactant, and then observed them collectively with a microscope. Not long after, he said, "I found it, the twelve floor is on the Bai Chi City Tower." He said, "Let Xiao Tan adjust the 12th floor to monitor the surveillance on the 12th floor to see which room can be locked."

Qiu Yan waved his hand, and a universal door card was sandwiched between his fingers: "Go up and take a look first."

Qiu Yan and Gong Yingxian took several policemen upstairs.

At the end of the deep, narrow and dark corridor is a window. Due to the sunburn in the west, the window is wrapped in strong light, and its outline is barely visible, which makes people think of the passage to another world.

Everyone's hearts were tense because they all knew what kind of cunning and cruel enemies they were facing.

A few minutes later, there was news from Tan Haochun.

"It should be 1206. No one came out of this room when evacuated. The surveillance monitor showed that the waiter knocked on the door and swiped the card during evacuation. But for some reason, the door was not opened. The waiter was anxious to take care of the elderly guests and left."

Everyone came to the door of Room 1206. Qiu Yan glanced at the "Do not disturb" hanging on his hand and smashed the door twice: "Is there anyone? Is there anyone!"

There is no response inside.

Qiu Yan used a door card to swipe the door.

The door really didn't respond.

"Can it be demagnetization?" Qiu Yan tried the next door with a card, and with a tingling sound, the door opened, "It seems that the door magnet was destroyed from the inside."

"Well, the waiter checked every door during the evacuation, and only this one was not open."

"what to do?"

"Let me do it." Ren Yi said, "This kind of lock is easy to open, if there is no anti-lock or chain inside." Lock unlocking is an important skill in their firefighting work. They even have a complete set of lock unlocking tools, but they are more willing to unlock locks to save people than to be lock unlocking masters.

Ren Yi took the door card from Qiu Yan's hand, carefully inserted it into the crack of the door, and tinkered it. After a while, with a "click", the door lock was opened by a small room card.

Qiu Yan said, "Captain Ren has two tricks."

"Yes, but I don't dare to show it easily, especially in front of the police." Ren Yi said as he was about to push the door.

"Don't move!" Gong Yingxian grabbed the door handle quickly with his eyes and hands.

Ren Yi was shocked.

"Be careful, you back."

All the police took out guns.

Gong Yingxian held a gun in one hand and grabbed the door handle with the other. He leaned against the door, pushed it carefully, and carefully observed the crack of the door. After confirming that there was no mechanism on the door, he kicked the door open, held the gun, and quickly searched within his reach.

This is an ensuite, and as soon as they come in, they see the living room, and they can only reach the bedroom by walking through the living room.

Ren Yi didn't dare to get in the way at this time. When he saw them all in from behind, he leaned in curiously and heard a few curses coming from inside.

Ren Yi followed in and came to the bedroom, and was shocked by the scene in front of him.

A big English word was burned out by chemicals on the snow-white quilt in the bedroom - FIRE.

But no one.

Qiu Yan cursed angrily: "Cao, we were fooled."

Gong Yingxian said expressionlessly: "If it is really so simple that the hostages can be found, it will not be like their style of conduct."

Qiu Yan irritated his thick long curly hair: "Why are you all blocking here? Leave two people to collect evidence and the others go out." She took the lead and walked out, "Check who opened this room and whether people can contact us."

Gong Yingxian said: "I asked Xiao Tan to check the surveillance on this floor. When did someone enter and exit the room?"

Ren Yi frowned, his mind full of the corroded "FIRE", and he felt extremely uncomfortable. They were already prepared to face any hostage situation, but they did not expect that it would be "no hostages". To be precise, the hostages were not here. As for where, who they were, and who, they still don't know.

This hotel has more than 500 rooms, located on a major traffic road, with a very high occupancy rate. There are at least six or seven hundred people evacuated today - guests and hotel staff. It is almost impossible to find out who is missing within today.

No wonder Bai Chicheng said that they would go back to find him.

After Gong Yingxian finished the phone call, she was about to say something to Qiu Yan, and Qiu Yan's cell phone rang. She answered the phone. After hearing a few words, she was shocked and her voice was trembling: "How is others now! I, I'll go there right away!"

"Captain Qiu, what's wrong?" Ren Yi looked at Qiu Yan's pale face in an instant, and his scalp exploded.

Qiu Yan gritted his teeth, and his shoulders trembled due to extreme anger: "There is a mechanism in Zhang Wen's room, and A Qiang and six others were injured by the bomb."

Ren Yi suddenly felt his brain appear briefly blank.

The last trace of luck he had in mind was also shattered.

It's really Zhang Wen.

That ordinary and inconspicuous young man...

He was so terrified that he had thought of how he had been with him for so long that he had been trying to figure out how to calculate them, use them, and even had countless opportunities to kill them.

Gong Yingxian said anxiously: "How is Cai Qiang?"

"In the hospital, I have to go over to deal with the scene now." Qiu Yan breathed hard, suppressed his grief and anger, and said tiredly, "Ying Xian, I'm leaving it to you here, is it OK?" The sentence "Is it OK?" There was almost a hint of subconscious plea in his tone.

Gong Yingxian held her slender shoulders and said, "Sister Yan, don't worry, leave it here to me."

Qiu Yan left hurriedly. Gong Yingxian watched her back disappear at the elevator entrance, allowing her emotions to get out of control. He kicked the door next door, and his white jade-like face was filled with haze at this moment.

Ren Yi comforted him, "Don't be anxious, they will be fine." He said this, and even he felt weak and powerless.

Gong Yingxian looked at Ren Yi deeply and said hoarsely: "I think every day that if I could catch Zi Yan earlier, many people would not have to be injured."

Ren Yi scolded: "I have said it many times, don't take over the big picture anymore. The enemy is in the dark and I am in the light. We are still fighting against a Christian organization that has been rooted in many years. You have done a good job. The casualties of innocent people are the fault of the imposer, not yours."

Gong Yingxian's lips were shaking gently.

Ren Yi whispered: "Ying Xian, I also have many depressed times, when I didn't save the person, when I watched the victim die in front of me. Every firefighter has experienced pain, self-blame and helplessness, so that I can grow into a mature firefighter. When facing the self-doubt of young soldiers, I often tell them what my captain told me, that we save more people than those we can't save. The same is true for you. You only see the people you can't save. Do you know how many people you have saved?"

Gong Yingxian whispered: "You always comfort me."

"It is to comfort you and encourage you, because it is the truth."

Gong Yingxian looked at Ren Yi with gratitude. No matter how many praises or medals there were, they were not as good as this person's understanding and praise.

What else he wanted to say, but his phone rang again. It was Tan Haochun.

"Hey, have you found it...what? Why didn't you find it before?"

After hanging up the phone, Gong Yingxian's face was still ugly: "The surveillance on the 12th floor has been disconnected several times, and the content is missing. Because the monitoring volume is too large, I didn't pay special attention to this floor before and I didn't find it."

Ren Yi had already expected this result: "Bai Yan played with us, probably waiting for us to go back to find him, laugh at us, let's go?"

Gong Yingxian quietly shook Ren Yi's hand.

"Even at this time, I'm not afraid." Ren Yi said, "You know why, because you can get rid of danger every time, and you can bring me home safely, and this time is no exception."

Gong Yingxian glanced at Ren Yi with gratitude. Ren Yi always said that he had saved him countless times, and this statement was incomplete.
Chapter completed!