Wang Shen looked at the pile of number cards in his hand, and then installed these number cards back on the original cabinet one by one.

"I probably guessed how the murderer dropped Ah Cheng's clothes." After installing the number cards, Wang Shen looked at Liang Zichen and replied.

"What do you mean?" Liang Zichen's eyes widened a little and looked at Wang Shen curiously.

Wang Shen took out his mobile phone and opened the photo of the entire cabinet taken at the beginning. "Let's see if this photo is any different from the cabinet in front of you now."

Liang Zichen took Wang Shen's mobile phone, looked carefully at the photos on the phone, and looked at the cabinet in front of him. Liang Zichen frowned, his eyes kept moving on the cabinet and mobile phone. After a while, Liang Zichen glanced at Wang Shen helplessly and shook his head. "Team Wang, aren't all the same cabinets? And those numbers correspond to them. I really don't see anything wrong. After speaking, Liang Zichen wanted to return the mobile phone in his hand to Wang Shen.

Wang Shen waved his hand. "Look at that picture, and then look at this row of cabinets." Wang Shen didn't take back the phone, but walked to the No. 16 cabinet and asked Liang Zichen to compare. After a while, Liang Zichen still didn't seem to see the secret.

Wang Shen shook his head and said, "Look at it, this row." Wang Shen pointed to cabinet No. 16, then his fingers slowly moved to the left, and his mouth began to count the numbers again: "One!" When Wang Shen counted one, his finger fell on the door of cabinet No. 17 on the left. Two! Wang Shen's fingers continued to move to the left. Three! Four! Five! Six! By the time Wang Shen counted to the sixth number, his fingers had already landed on the last cabinet against the wall.

"Zichen, you enlarge the photo and count how many cabinets are on the left side of cabinet No. 16 on the photo." Wang Shen looked at Liang Zichen and prompted.

Liang Zichen seemed to understand what Wang Shen meant, nodded, enlarged the photo of his mobile phone, and counted the numbers from the No. 16 cabinet door to the left. "One! Two! Three! Four! Five! After counting, Liang Zichen glanced at Wang Shen in surprise, and he didn't seem to believe in his counting ability. One! Two! Three! Four! Five! Liang Zichen counted it again, and it was still the same result.

"Team Wang, there are only five cabinets on the left side of the No. 16 cabinet door in the photo." Liang Zichen looked at Wang Shen in surprise, and then looked at the cabinet in front of him.

"Yes, someone is grafting." Wang Shen nodded and said.

"Grafting?" Liang Zichen asked rhetorically.

"If you hadn't reminded me, I wouldn't have discovered the secrets of these number cards." Wang Shen looked at Liang Zichen and smiled. "Look at the number cards next to the door of cabinet 16, I tried them just now, and they were easily taken down. At first, I thought that's how these number cards were designed. So I tried to get the number 8 card, which was far away from the door of cabinet 16. Oddly enough, the number 8 number plate fits very firmly and is not as loose as these number cards near the door of cabinet 16. Why do you say that? Wang Shen stopped, looked at Liang Zichen, and waited for Liang Zichen's inference.

Liang Zichen glanced at Wang Shen, and also walked to the door of the No. 16 cabinet, and picked off the number 16 with his hand. Liang Zichen carefully observed the number cards in his hand, and then moved his eyes closer to the cabinet to observe the bayonet where the number cards were located. Liang Zichen found that the light and thin iron sheet at the bayonet seemed to have signs of turning out, which made the bayonet relatively large, so it led to the loosening of the number card.

"Somebody has dismantled the number cards, and in a very violent way." Liang Zichen replied after installing the No. 16 number card back into the cabinet.

"Yes, that's good. This is how the murderer moved the flowers. You look at the numbers in cabinet 16 on the front and back, left and right. Wang Shen paused, pointed to the cabinets, and said. The arrangement of the numbers around cabinet 16 has not changed. It's just that the murderer moved all these cabinets to the left. Moreover, this photo was taken on the day of the accident. So Ah Cheng must have used the arranged cabinet. This is the number 17 cabinet in front of us. ”

While listening to Wang Shen's explanation, Liang Zichen admired Wang Shen's observation and inference ability in his heart. However, Liang Zichen thought about it carefully, there would still be many problems inside. "Team Wang, your guess is very reasonable, but this assumption still has many fatal flaws. You said that the murderer's way of moving flowers and trees was to move cabinet 16 and all the surrounding cabinets to the left, so that Ah Cheng thought that the current cabinet 17 was his own cabinet 16. It makes sense. And the likelihood of success in implementation is extremely high. Because even I've been observing it for a long time and I haven't noticed a problem. But to open cabinet 17, the key to cabinet 17 must be used, and this is a fatal contradiction. ”

Halfway through speaking, Liang Zichen took the key from cabinet No. 16. "Team Wang, you see, this key was found on Ah Cheng's body. He must have used this key to open the cabinet door in the first place, right? Liang Zichen looked at Wang Shen and asked.

"That's right, of course Ah Cheng will only use his own key to open his own cabinet door." Wang Shen looked at Liang Zichen and nodded.

"By the way, that's the problem. Now this key opens the real cabinet door 16. If Ah Cheng also used this key that day, then how did he open the door of cabinet No. 17, that is, No. 16 after the transfer of flowers and trees? Liang Zichen said as he inserted the key into the keyhole of the No. 17 cabinet door. The key can be inserted into the lock hole, but it does not rotate. "Team Wang, you see, this key can't open the door of cabinet 17 at all."

Wang Shen watched Liang Zichen perform this operation, nodded as well, and finally smiled. "Actually, there are many ways to solve this problem."

After listening to Wang Shen's words, Liang Zichen fell into deep thought. Liang Zichen thought in his heart that there was any way to make the key "transfer flowers and trees"? "Could it be that after Ah Cheng opened the cabinet, someone dropped the key on him?" Liang Zichen came up with a reasonable way to explain this contradiction.

Wang Shen was still looking at the doors of the two cabinets, No. 16 and No. 17. After hearing Liang Zichen's words, Wang Shen looked at Liang Zichen and nodded: "Of course, there is also this possibility, but the difficulty is a bit big, and the risk is a bit high." ”

"It shouldn't be particularly difficult to change a key, right?" Liang Zichen looked at Wang Shen suspiciously, not quite understanding the meaning of the difficulty is a bit big and the risk is a bit high.

"It varies from person to person. You think, Ah Cheng changed into work clothes before work. And we were there when the accident happened. You calculate that Ah Cheng only took a few hours from putting on his work clothes to having an accident. The more pressing problem is that there is Ah Cheng's wallet in the cabinet, which has a group photo of Qi Huan, and there is a mailbox behind the group photo. I think these things should be more important to Ah Cheng. I also learned from Han Lin and the staff here about Ah Cheng's work habits, and his cabinet is always closed. In other words, Ah Cheng is a person who protects the things in the cabinet very well. And I guess he carries the key with him at all times. To steal the key from Ah Cheng in such a short period of time, is it difficult to say? ”