Xiaotian found a problem, or heard from the reader, Xiaotian somehow, the six-fold leaning tower of the notice letter was written as a nine-fold leaning tower, the reader always said that it couldn't be solved, Xiaotian also re-read it, and found that it was true, so it was corrected, remember, it was a six-fold leaning tower, I believe that the reader will solve it, right? It doesn't matter if you don't solve it, the answer to this chapter will be revealed.

"Hey." In a corner outside the company, a middle-aged man with a public face took out his mobile phone from his lower coat pocket, pressed a series of phone numbers, and then pressed the dial button.

"What's the matter?" A female voice came from the phone, and there was a hint of worry in her tone, "Why did it take so long to call, I thought you were in some danger, and I was about to contact someone else to rescue you." ”

"There aren't many things that can put me in danger." The middle-aged man seemed to hear something funny, the corners of his mouth hooked a little arc, and said, "Besides, if it really comes to that time, then it's useless for you to come, do you think that the opponent who can make me cornered is something you can deal with?" Don't give up your life in vain. ”

"I don't care, my life is saved by you, and so are the others, if it really comes to that time, we will come even if we die, the grace of a drop of water, when the spring reciprocates, this is what you used to talk about, what? Have you forgotten your own mantra? Okay, if there's anything to say, I'm sure you didn't call me to worry me, right? Your heart has long been tied to that woman. Speaking of this, the voice on the phone was obviously a little angry, which made the middle-aged man helpless for a while.

"You've already met him, haven't you? What do you think? The man was silent for a few minutes before he slowly asked.

"You said he, yes, worthy of ......" a complimenting voice came from the phone, "Forget it, you definitely don't want to hear that, you just know it in your heart." By the way, there is one thing I want to tell you, I believe you should know, that woman's family has appeared, hehe, it's no wonder, he is so good, and it is natural for those people to come to him, but you definitely don't want to, but I advise you, now you all have the same purpose, so you can try to cooperate, I promise they must be nothing unusual, and what should you do when everything is resolved? How is it? ”

"Not good." The middle-aged man simply refused, "I hate them, they were before, they are now, and they will be in the future, it is even more difficult for me to cooperate with them than to ascend to the sky, and I have you here, no one can threaten me, today I will prepare a crucial thing to complete, and then it is when we start to fight back." ”

"Then good luck, don't force yourself, if you get hurt, I'll ...... It's very distressing. The voice on the phone became smaller and smaller, and then hung up under the middle-aged man's puzzlement, in this regard, the middle-aged man smiled helplessly, thinking about how old a person still said these words, but thinking about it, he understood, everything is his own fault.

Next...... Thinking of this, the middle-aged man glanced at the time on the screen, then looked up at a certain floor of the tall building behind him, showed a strange smile, and left, walking in the direction of the amusement park.

Everything is ready, only the east wind is owed!

……

"It looks like we're going to start with 1817." Zheng Hanfei stared at the notice letter for a while, then rubbed his eyes, and said helplessly, "Ouyang Xiu, have you found any clues?" ”

"Nope." Ouyang Xiu shook the mobile phone in his hand and said the answer that Zheng Hanfei expected, if Ouyang Xiu really found something, I am afraid that he would shout loudly at the first time, maybe his voice could resound throughout the building.

"Yes......" Zheng Hanfei sighed, took out a piece of paper and a pen from his pocket, wrote all the words on the notice letter on the paper, circled the words of the first three lines, and then drew a line under the sentence in the fourth line, and dotted the words cross coordinates with the tip of the pen, and fell into deep thought.

Cross coordinates? Zheng Hanfei silently recited a few words in the fourth line in his heart, turned the paper upside down, and drew a cross coordinate with a pen, at this moment, Zheng Hanfei understood something, slammed the pen and paper on the coffee table, took out his mobile phone, turned on the network, and after entering a few keywords, a related message came out on the web page, Zheng Hanfei clicked on a message closest to his thoughts, and after browsing, Zheng Hanfei's face had a confident smile.

The sudden voice startled everyone, seeing Zheng Hanfei in a hurry, everyone knew that Zheng Hanfei had any clues, and when Zheng Hanfei showed a smile, everyone approached Zheng Hanfei, but saw him pick up the pen and paper on the coffee table and draw a diagonal line on the cross coordinates.

"This is ......" Ouyang Xiu's eyes widened, understanding something, and then his face also showed a confident smile that was the same as Zheng Hanfei's.

Here's the answer. The time when the afterimage appeared. Zheng Hanfei picked up the pen and pointed to the cross coordinates on the paper, and said, "The so-called cross coordinates are the clock, and the four points on the cross coordinates are 12, 3, 6, 9, and the angle between every two times is 90 degrees, and the six-fold leaning tower located in the cross coordinates is the angle of the hour or minute hand, so what is the angle of the leaning tower?" The previous 1817 is a hint, as Inspector Zhou Zheng said, that refers to the year, when it comes to the leaning tower, we can all think of the famous building - the leaning tower of Pisa in Italy, I checked the information on the Internet, in 1817 two British scholars Cresy and Taylor measured the inclination with a plumb line, and the result was 5 °, six times the leaning tower, that is, 30 °, and from 12 to 3 divided into three equal parts, that is, 15 °, 30 ° is twice 15 °, that is, pointing to the direction of 2. ”

"But we don't know if it's the minute or the hour...... Yes! Qu Menghan just asked a question, but she saw Zheng Hanfei pointing to the picture she had drawn with a pen, and then thought of the sentence on the notice letter, and shouted, she already understood what was going on.

"As you think." Zheng Hanfei turned the paper upside down, pointed to the fifth line of the sentence with a pen, circled it, and said, "'Looking up at the towering pillar' means that the needle pointing in the direction of 12 is from an oblique angle, if the hour hand is pointing at 12, then the minute hand at 2 is tilted, but that can't achieve 'looking up at the towering pillar' at all." The answer is obtained, the hour hand is at 2, and the minute hand is at 12, which is 2 o'clock, which is the time when the afterimage appears. ”

"Hey, if that's the case, you're running out of time." Zhou Zheng glanced at the watch, and handed it to everyone, the current time is 1:45, which makes Zheng Hanfei and Ouyang Xiu open their mouths, they didn't expect them to spend so long thinking about this notice letter, they remember that the time was a little more than 12 o'clock, and cracking a notice letter was actually 1 hour and 45 minutes, which is unimaginable.

"What's next?" Zhou Zheng frowned, the date and time were already known, but the most important time was not known, Ouyang Xiu's previous reasoning was not wrong, but where was the highest place, this was a very important question, and his intuition told Zhou Zheng that the answer was not so simple, and there should be other meanings in it.

"yes, the highest place...... At the top, where can there be such a place? Ouyang Xiu tilted his head and thought about it, and kept chattering, but unfortunately it was useless to crack the notice once it was used.

"Could it be there?" At this time, everyone heard Qu Menghan's voice, turned their heads suddenly, and saw Qu Menghan pointing out the window with his finger, looking in the direction, only to see a tall Ferris wheel spinning.

"That's right! It's the closest thing to here, and the afterimage will appear at the highest point of the Ferris wheel, so let's go without further ado. Ouyang Xiu patted his head and beckoned the others to leave, and after a while, everyone left the reception room and ran in the direction of the amusement park.

Ferris wheel? Seeing the non-stop Ferris wheel, Zheng Hanfei remembered that he encountered a case in London, it was the second time he cooperated with the afterimage, the first time was when he was on Biyan Island, but the first time was different from the second time, the first time was to catch the murderer and prove that the afterimage was wronged, and the second time was to face an organization that was more murderous than the murderer. Zheng Hanfei thought that he wanted to tell himself that he was not capable enough, so he should not challenge people who were stronger than him, so as not to set himself on fire.

Everyone ran out of the company, Zhou Zheng looked back at the company's building, at this time, he seemed to notice something, stopped, and said to Ouyang Xiu, Zheng Hanfei, Qu Menghan You go first, I will tell Ling Hua and Zheng Hanxue to come with a word, and then ran into the building, the three of them looked at each other, I don't know what medicine is sold in Zhou Zheng's gourd, but unfortunately there is not much time now, they can only leave Zhou Zheng first and move towards the direction of the amusement park.