Su Mu turned on the amplification of the landline, turned on Bai Xin's mobile phone, and said, "I turned on the amplification, you can contact them directly." ”

Bai Xin shouted loudly into his mobile phone: "I am a specially appointed forensic physician of the Huangshan Police Department, my ID number is BX908, and I just took up my post three months ago. Please contact the Huangshan District Police Department, I am now caught in the middle of the case, tied to a strange room, with explosives strapped to my feet that will explode in five hours. ”

The landline was separated by two layers of intercom equipment, and the voice was indistinct, but it was finally understood: "Okay, I'll transfer to the Huangshan District Police Station." ”

After a few seconds, another voice came from the phone: "Hello, we still need to go to Miss Bai Xin's house to investigate if it is missing." Even if it is me, it is impossible to judge whether it is true or not by relying on this phone call alone, and we cannot apply to send anyone to help. ”

Bai Xin understands the process of the police, because there are not many malicious jokes like this.

She said, "Well, I don't have a second Miss Baixin at home, and besides, I live here alone, so maybe I can't verify more." You just need to go to my house to check if there is anyone living in it, and after confirming that no one is there, start submitting the application, please search for my mobile phone number and apply for location. ”

"What is your mobile phone number? I'll submit a positioning application to the top and try my best to determine the specific location. ”

Bai Xin reported a string of numbers and said: "Please do your best, I still have a piece of sweetheart chocolate tied to my leg, if this explosive-drug device detonates, I will die alone, and the fire will be worth the loss." ”

"I see, I'll contact you later."

As soon as the policeman was about to hang up, Su Mu answered: "Give you another number, I can't break the call with Miss Bai, what's the situation, please call this number 138XXXXXXX." ”

"Okay."

The landline hung up, and the world was quiet all of a sudden.

Su Mu said suddenly: "At such a time, I can still think of the safety of others, Miss Bai is really kind-hearted. ”

"In that case, they should be cautious." Bai Xin said that she had no selfish intentions, she wanted to attract the attention of the other party, protect herself, and try to minimize the number of casualties.

"Can you stand up?" Su Mu said.

"With my feet tied, I can stand up, but I don't necessarily have balance."

"Where's the hand?"

"Tied behind him, unable to move."

"That means if you hang up, you won't be able to make a call?"

"After all, I don't have eyes behind my back, and it's not realistic to rely on blindness." Bai Xin said.

Su Mu understood: "You stand up, and then walk to the corner." Jump as hard as you can along the base of the wall, and try to be precise in the length of each step, I need the length and width of this room. Also, what is your shoe size? ”

“35。”

"You tell me how long the average jump is, how many steps I jumped, and the last step is that the toe of the shoe is just attached to a corner of the wall, or is there still a certain distance, please be sure to be accurate."

Su Mu was very strict when he said this, and he didn't smile at all. I think that once I start to do problems, this math teacher who usually does what he wants also has serious times.

"Circumference, elementary school question." Su Mu's tail voice is low and soft, and he is in a good mood.

Bai Xin frowned: "You look happy?" ”

"I'm reminiscing about my childhood."

Bai Xin was helpless: "Then your childhood is really miserable." ”

"Miss Bai, wait a minute, you must stabilize your body, otherwise you will damage the explosives, and you may sacrifice yourself early." Su Mu said, "Also, please tell me in advance before you fall." After all, I don't know if it will destroy the phone when it detonates and stop the noise, or if the shrill sound will pass through the phone in advance and damage my eardrums. ”

Bai Xin smiled and sarcastically: "Teacher Su, you seem to know how to protect yourself in the first place." ”

"Thank you."

"It's not a compliment."

Bai Xin didn't argue with Su Mu about such an inconsequential issue, she stood up, and it was not easy to stabilize her figure.

Despite the staggering, she was reluctant to give up any chance to save herself.

Bai Xin didn't want to die yet, she had to calm down.

And Mr. Su ...... It was her only lifeline.

Bai Xin followed Su Mu's instructions and carefully jumped to the wall. The device on her leg weighed as much as a thousand pounds, as if it had been filled with molten iron, and when she moved slightly, she trembled, as if she was trembling.

Bai Xin was afraid that this thing would fall down, slamming on the ground and blowing her up to the sky.

She couldn't help but take a deep breath, hold it in her throat, and then slowly spit it out, expelling all her worries.

"Teacher Su, are you still there?"

The amplification is on, so you can hear it.

Su Mu said: "Well, I'm here, and your weight can be deduced from the sound of your jumping, it seems to be ...... Time to lose weight? ”

“……”

Bai Xin didn't think it was funny at all, but joking at this time could ease the tense atmosphere a little.

With great difficulty, she reached the corner. Bai Xin relaxed, and at this moment, her eyes turned black, and her body couldn't help but lean forward.

No, the explosive-explosive device must not be allowed to blow up at this moment.

So, she immediately leaned back, and because she had no arm to block the fall, the back of her head slammed against the wall, and she was dizzy.

"White Heart?" Su Mu called her name for the first time, and obviously heard that tragic collision.

Bai Xin was dizzy: "I'm fine, but my brain hurts." ”

"Generally speaking, this detonation-to-explosive device is not so fragile, so you don't have to sacrifice your life to protect it."

Bai Xin gritted his teeth and said "um", and began to carry out the exercise that Su Mu said.

In the end, it was concluded that the length of her small jump was about 20 centimeters, and when measuring the length of the room, she jumped a total of 10 steps, and the last step was just against the tip of her shoe. The width of the body is six steps and just touches the tiptoe.

Bai Xin returned to his original position and told Su Mu the number of jùsù.

Su Mu groaned and explained: "The size 36 shoe is expected to be 23 centimeters, when measuring the length, and the tip of your shoe is against the wall, it means that there are 11 times the length of the shoe, and you jumped 10 steps, so that the total length is 4 meters and 53 centimeters." The width, which is 6 jumps, is against the wall, so with the length of the shoe 7 times, there is a total of 2.81 meters, so as to get the circumference of the room. I understood. ”

"However, what does Mr. Su need to do with this?"

"I really can't find a place, just within the approximate range, rely on this to guess the specific location. Judging from the satellite map that may match the house, and then judging the location of the room you are in from the appearance, there will always be a pair of lengths or widths. ”

"That doesn't seem too realistic, doesn't it?"

"Or, do you want to think about suicide laws?"

"Let's try it too." Bai Xin said, "Then does Teacher Su have any clue now?" ”

"The preliminary judgment is that it is not a house that you live in on a daily basis, it may be an abandoned shop, which has not been occupied for many years, so it is not easy for people to notice. It could be a dance studio, or a musical instrument shop. This point is roughly judged from what you call the swan dance. ”

Su Mu asked again: "Do you have a window there?" ”

"There's a small one, with iron bars on it, just enough to show my eyes."

"Go and see, what you can see."

Bai Xin was obedient and jumped to the window to look out.

Outside the house is a crossroads, sparsely populated. Because the street lights at the intersection were dilapidated and couldn't shine brightly, she really couldn't see anything, and the brightness of the moonlight was also limited.

"It's an intersection, and then I can see a house right in front of me, and there are no lights in it, no light, and I don't know if there are people. But the vegetation is lush, wait a minute...... In the yard of the house on the left side of the intersection, there seems to be a cherry tree hanging on it, and that tree is a cherry tree. ”

"What about the others?"

"Anything else...... Well, I can't see it clearly. ”

Su Mu didn't continue to ask, he thought for a while and said, "Also, is the wall a cement wall?" ”

Bai Xin said, "Yes." ”

"When it explodes, because the walls are solid and the room is narrow, the shock wave is accumulated and the force is gathered...... You may die a more painful death. ”

"Sue! Old! Division! Bai Xin gritted his teeth.

"I'm going out now, and it's up to you to decide a direction, with your so-called sixth sense, to determine a direction."

"I choose...... Go out and turn left. ”

"Then I'll turn right and check if there are any dance studios or musical instrument shops in the neighborhood nearby."

But in fact, Su Mu did not follow his nature.

He walked for about three minutes, stopped, and asked softly, "Were you robbed in the alley behind Emi Supermarket?" ”

Bai Xin said, "Yes, it seems to be in the middle of the alley." ”

"There was standing water on the ground, a little muddy. You are lucky, there are still traces of dragging you on it, and the heels of your shoes are on the ground, forming two small edges, which shows that he has no accomplices and acted alone. Su Mu pondered for a while, and then said: "The traces are gone here, and now there are traces of the wheels." If you look at the direction of travel, you will see a one-way street outside the intersection in front of you. ”

"One-way street? Doesn't that mean there's only one direction? ”

"Hmm." Su Mu started the car, and there was a sound of closing the door, and he drove away in the direction that the only one way he could drive.

Now that the direction has been confirmed, it is easier to judge it next.

"Didi, Didi."

Bai Xin's mobile phone suddenly heard a rapid sound, which was a signal that there was still 20% of the battery left.

She was so anxious that her nose was sweating, and she didn't know what to do.

"Mr. Su, I still have 20 percent of the electricity."

"That's enough." Su Mu said.

He is so confident, which always makes Bai Xin feel better. He was Musol, and she should have believed him.

"Then hurry up, I'm afraid in case ......"

Su Mu interrupted her, seemingly unconcerned about anything other than tracking.

"I've gone out of the one-way street, and now it's at an intersection, left and right directions, and you choose one direction," he said. Or remember if you heard anything. ”

"Voice?" Bai Xin was puzzled.

"Sounds heard on the road, wind, music, whatever."

Bai Xin closed his eyes and fell into memory.

She wasn't actually in a deep sleep at the time, although she was groggy, but she was still a little conscious.

But did she hear anything?

Bai Xin thought about it and seemed to know that the mask man had paused at several intersections. Because she once leaned forward due to brake inertia, her forehead hurt several times.

What is the first pause?

"The human brain is sometimes smarter than they think, and the brain will store things in the cerebral cortex when people are groggy before going to bed, or inadvertently hear and see, and when the picture is reproduced, it will produce a sense of immediacy that has not been there but is so familiar."

"I understand this, so what?"

"So you remember all the sounds, just remember them."

Think again?

Bai Xin closed her eyes, the picture in her mind jumped, but she didn't think of anything.

She couldn't help but think about it, recreating the situation at that time.

At that time, her head was very painful, dry and dry, and it was twisted together, squeezing her braincase.

Bai Xin couldn't help but curl up in a ball, she heard the confusion of traffic, and then, her forehead hit the backrest of the driver's seat.

"Bang."

By the way, she thought of it.

Bai Xin replied hesitantly: "It seems that I heard someone buy noodles and say that they want to pack such words." ”

Su Mu replied: "That's right, there is a noodle shop on my left, and a pedestrian street on my right." I drove to the left and waited for my news. ”

"Okay." Bai Xin became nervous for no reason, she hoped that Su Mu would successfully arrive here, and then the police would also come to dismantle the explosives, and everything would become smooth, and everyone would be safe.