After that, another nineteen years passed. One day, Long Futao's family was holding a luncheon, because Long Futao had cleared his debts and his living conditions were gradually improving, and his wife, who liked luxury and showy people, regained her former look, and often went to dinners, or held balls and drinking parties in her own home, so as to display her former social skills.

On this day, she invited some guests, including Long Futao's two nieces, a pair of cousins. Among the male guests were Judge Tang Guohua, Senator Shao Wenbo, and General Ruzel, whom Long Futao was very familiar with before. In addition, there is a young man named Kevin, who is smart, quite personable, and has the physique of an athlete.

Kevin is a young talent that Long Futao and his wife met when they traveled to Donghai Island.

After eating, everyone sipped coffee and talked loudly, and after a while. The conversation turned to the case of the stolen necklace and the strange letter.

"Mr. Kevin, what do you think of this case?" After Mrs. Long Futao's question, everyone's eyes were focused on Kevin's face. At this moment, Kevin lowered his head as if he was very cramped and said:

"Hah! How can I, a man like me, have anything to say?"

"No, you are too humble, your eyes are as sharp as a detective, In the East China Sea, you have done me a great favor. Let us hear from you!" After Long Futao finished speaking, everyone nodded and deeply agreed with Long Futao's words.

Because Kevin just said that his father was a judge in the political court, and he was often exposed to some complicated cases, and he helped his father solve several strange cases.

"From what you just said, you can guess that you have the ability to solve difficult problems."

Kevin looked more and more embarrassed.

"No, that's my father, my father is really a seasoned and mature inquisitor, and has a kind of speculative ability, I just assisted him in solving a few difficult cases under his guidance"

"But all of them were successful! Isn't it?" Madame said.

"Yes, it was a success in those very bizarre cases, but I am neither Sherlock Holmes nor Inspector Wu Changhao, and I know very little about the theft of the necklace."

"Fu Tao, then you can tell him about it!" General Ruzel twisted his beard under his chin and shouted loudly.

"I always think of that case as a nightmare that has passed away and I don't want to talk about it again. Tonight, since you ......," Long Futao then concisely explained the front and back of the case.

Kevin listened attentively and asked several more questions about the key parts. When Long Futao finished speaking, he said:

"It doesn't seem like this is a very difficult case!"

"Oh, in that case, what do you mean ......" Judge Tang Guohua said, and there was a look of contempt on his face, as if to express such a meaning, even I, an expert, can't solve this problem, and a yellow-haired boy like you dares to boast about this.

Kevin clearly understood the presiding judge's expression, and then said: "A hairy boy like me is really a little self-defeating in front of professionals, and it is also very rude. However, I think that in order to solve a criminal case, the most important thing is to understand the method of crime first. ”

The presiding judge snorted in a nasal voice, as if to say that you still need to teach this, and then he picked up his coffee cup and took a big sip.

"So we first have to figure out how the thieves stole the boxes. I surmise that the burglars entered the house through the windows of the small room. Since the door was slammed, he had no other path but the window. ”

"But the windows are closed!" Long Futao muttered unconsciously.

Kevin ignored him and continued, "The burglar opens the window ......"

"But the window pane is still nailed strong!" Long Futao couldn't help but scream. Kevin smiled and nodded slightly: "Yes, it's indeed closed, but there should be a window that can be flipped, right?"

"Yes, but the window is closed!"

"Of course it's closed, because the burglar opened it and closed it again."

"That's absolutely impossible."

"The flip window is in a very high place, which is generally out of reach by hand, so in order to open and close it conveniently, a rope pull method is used......

"Ah...... That's true, but ......"

"Tie a small brass ring to the bottom of that rope and easily pull it down with one finger to open and flip the window, right?"

"Yes, yes, it's the same as you say......"

"The rope with the brass loop should hang between the bookshelf and the window."

"Yes, exactly."

The thief made a slit in the glass of the window, took a small stick and passed it through the slit, inserted it into the brass ring, and then dragged it down, and the flipping window was opened. That's what thieves do. ”

Hey! It turned out to be like this, and he came up with such a method...... Everyone admired it very much, and only Long Futao laughed out loud. "Very well, this is indeed a good idea, but it is still not okay to do it alone!"

"What's wrong?" Kevin asked.

"There are no scratches on the window panes!"

"No, it's broken!"

"You're so messing around, where are there signs of rupture that I can't see. At that time, the security guards, the inspector and I all checked the window and found no signs of damage!"

"That's because you didn't look closely, but if you did, you would have found it. There should be a straight slit close to the edge of the wooden frame, which you don't see because the gap happens to be covered by putty from the window. ”

"No, it can't be...... I have also been tired of that little house since this case, and I have kept the door closed and the servants not allowed to enter, so that after twenty-five years, no one has entered, and the situation of that year should remain intact and not change in the slightest. I immediately went to check to see if there were any cracks in the windowpane. Long Futao walked out of the door a little unconvinced. After going out for a while, he came back with great excitement.

"That's amazing, guys, what Mr. Kevin said exactly fits the truth!"

"Yikes!" The crowd cried out, and the lady suddenly changed her countenance and stood up. At this time, Long Futao said to Kevin: "I'm really sorry, it's so rude, I didn't expect you to be able to see something that was ignored by others." But how do you know if there's a crack in the glass? Have you ever seen it?"

"No, I haven't seen it, I'm just speculating. After some speculation, I don't think you can open the flip window unless there is a crack in the glass. ”

"Go on! And how did the thieves get into that hut? Please tell us your opinion, ah, no, your speculation!"

"According to my estimate, the thief must have known that Madame was wearing a necklace to the banquet, and while Madame was not at home, he looked for a place with a lot of putty on the edge of the glass window, and with a glass-cutting tool, first made a straight slit in the windowpane, and then, with a little spit on his hand, pressed against the glass, and then moved it vigorously to both sides, and the glass immediately moved to the left and right, and cracked a small gap. Because the glass on the glass window is not tightly nailed to the window frame, when we put our hands on the glass and move it vigorously, the glass will move more or less up and down, left and right.

"The next thing to do is to prepare a ladder in the grass in advance. When he was done with all this work, he hid. Later, when Mrs. Long came home late at night, Mr. Long put the necklace in the jewelry box and entered the small house. At that time, it was pitch black on all sides, and Boss Long was holding a candle in his hand, so all his actions in the hut were seen by the people outside the window.

When the thief saw Boss Long put the jewelry box and walked out of the house, he removed some of the cracks in the window pane, put a thin stick with a hook tied to his head, hung the copper ring on the head of the pullrope of the flipping window, and dragged it down, and the flipping window was pulled open. At this time, the thief took out the ladder that had been prepared in advance, put it on the flip window, climbed up the ladder, and got into the hut through the flip window......