"A diary alone can't prove that the person is the murderer, so we need to find conclusive evidence. I think there must be conclusive evidence in the rest of the hints, and we just need to find out. Qu Menghan took out the notebook with the hints as he spoke, circled the words and words behind it with a gel pen, and handed it to Ning Binglan.

"Cups? Under? Poison? Ning Binglan was confused by these three unrelated words and words, and after thinking about it for a while, Ning Binglan remembered something, pointed to the place where Qu Menghan drew a circle and said, "Although it is my guess, the last 'poison' should refer to poison, right?" The cup was supposed to refer to the cup that the deceased drank, and it seems that there was some clue on the broken cup. ”

"Well...... This explanation is quite reasonable, but there is also a 'down' word, how to explain this? Gu Jie pointed to the only word that Ning Binglan didn't explain clearly, and said, "I don't think Xiao Fei will talk nonsense, and I don't believe that Sister Menghan heard it wrong, this word 'down' must be the key." ”

"Of course I know that!" Ning Binglan said, "But 'down' doesn't make sense for the time being, so we might as well look for clues on the poison cup first, since Zheng Hanfei said the word 'cup' first, this proves that 'cup' is very likely to be the key to unlocking the word 'down', and besides, checking it won't delay anything, what kind of horns are you drilling." ”

"But didn't you and the other cops check the deceased's cup first?" Gu Jie pointed at Ning Binglan, and then pointed to a pool of red liquid on the ground not far away, and said, "Normally, do you already know all the clues, what else are you going to check, just think about whether there are any clues related to the word 'Xia'." ”

"Maybe Zheng Hanfei found some clues that even our police ignored." Ning Binglan said with a smile, then beckoned to a policeman who had checked the poison and asked some questions, but the policeman's answer was basically the same as the clues that Ning Binglan knew, no way, Ning Binglan thought about it again, and then pointed to Zheng Hanfei who was lying on the table not far away, and asked Zheng Hanfei if he asked him or other policemen anything strange.

"Ah, officer, when you say that, I remember that I forgot to report something strange to you." Seeing Zheng Hanfei, the policeman suddenly remembered that Zheng Hanfei had asked a question that only the police officers who checked the poison reaction they knew, patted his head, and hurriedly said, "In addition to detecting the poison reaction in the red liquid of the deceased and the deceased, we also checked the poison reaction in the fragments of the glass." ”

"What's so strange about that?" Ning Binglan raised her eyebrows and said to the policeman, "Isn't the red liquid in the glass poison, it may be that the poison did not dissolve and stuck to the glass, okay, Zheng Hanfei also asked something strange, you can say it together, this kind of thing is not too strange." ”

"No, officer, the poison didn't stick to the glass." Hearing Ning Binglan say this, the police knew that Ning Binglan had misunderstood what he meant, shook his hand, signaled Ning Binglan to say that it was not right, and perfected what he had just said, "We also checked the poison reaction on the outside of the glass, to be honest, this matter is only known to me and another person who checked the poison reaction, when the teenager asked me this question, I was surprised with him, I don't know where he heard it." ”

"What? The outside of the glass also reacts with poison?! Ning Binglan shouted, and Qu Menghan glanced at each other, but she didn't expect that this question really found a valuable clue, so she continued to ask, "Where is it outside?" Why don't you report it immediately? Don't you know there's a murder here? ”

"It's at the outside of the cup." It may be that Ning Binglan's expression was too terrifying, and the policeman was very frightened, and replied, "And the shape of the inspection is an arc." Actually, we wanted to tell you about it for a long time, but it was so chaotic that we didn't see you at all, and we didn't think it was important, so we forgot about it after that. ”

Ning Binglan gritted her teeth with hatred, no wonder, no one reported such an important clue, how could she not be angry, Ning Binglan's expression was completely angry with the policeman, but he couldn't blame the other party for anything, in this regard, Ning Binglan could only sigh and let the policeman leave quickly, so as not to look at him angry.

"But does it have anything to do with the technique?" Nan Ruoxun thought for a moment and asked.

"It has a lot to do with it." Qu Menghan said as he picked up an empty glass from the dining table and made it look like he wanted to drink water, "You see, when we drink water, we put our lower lip close to the outside of the glass, and the upper lip is put into the glass, so that we can drink water when we open our mouths, and the outside of the glass is close to the mouth of the cup There is poison, which proves that your cousin did not drink the red liquid of the poison, but his lips were poisoned, and when the toast was washed by the red liquid, the poison on the upper lip flowed into his body along the liquid, causing him to die." In this way, Han Fei's hint is clear, and the word 'down' refers to the lower lip. ”

"But when did the murderer poison him? The mineral water bottle was taken by the cousin himself, and it was taken randomly, it is impossible for the murderer to apply poison to the mineral water bottle, not to mention that not all the bottles in the box are coated with poison, how is the murderer ...... Yes! Speaking of this, Nan Ruoxun seemed to remember something, shouted, and then covered his mouth with his hand, his eyes full of disbelief.

"Looks like you've got it in mind." Qu Menghan sighed and said slowly, "Only that technique can explain why your cousin has poison on his lips, and the mineral water bottle he drank has poison sticking to the mouth, everything makes sense, Officer Ning Binglan, please, gather everyone, let's reveal the mystery." ”

"I said, have you forgotten something?" Ning Binglan, who Qu Menghan thought of, naturally thought of it, and just as she was about to prepare, she suddenly thought of a very important thing, and couldn't help but say to Qu Menghan and the others, "This technique does make sense, but we lack decisive evidence." ”

"It's true that there is no conclusive evidence, so we can only gamble." "Maybe the killer left the evidence on himself." ”

"Impossible! If the evidence remains on the murderer's body, then the murderer has already ......" Ning Binglan just wanted to deny Gu Jie's point of view, but saw Gu Jie pointing to his mouth and then to the glass on the dining table, Ning Binglan instantly understood, and nodded, just as Gu Jie said, now they can only gamble, so Ning Binglan called two policemen, one of whom was the policeman who had asked him, and after asking him to check some things, Ning Binglan called another policeman to tell everyone who wanted to reveal who the real murderer was.

"Hey, do you really know who the murderer is this time? You policemen don't believe in a third-rate detective like before, and you wronged Xiao Xiao. Speaking of this, Yi Ren couldn't help but look at Xingye Sakura with a smile on his face, and he didn't say anything about it, just stared at Qu Menghan, Nan Ruoxun, and Gu Jie, not knowing what he was thinking.

"Don't worry, I vouch as a police officer, and this reasoning will definitely find out the real culprit." Ning Binglan pointed to her police uniform and said. Seeing that Ning Binglan was so confident, Yi Ren didn't say anything anymore, but when he saw the three young girls standing beside Ning Binglan, he suddenly thought of a possibility, and just wanted to say something, but he saw the familiar badges on the chests of those three people, and after thinking about it carefully, Yi Ren directly swallowed what he just wanted to say back into his stomach, he really didn't expect that those three people were actually members of the Sherlock Detective Agency.

"Who the murderer is, can you tell us now, three little detectives?" Xingye Sakura took a step forward and looked at Qu Menghan and the three of them, the corners of their mouths hooked up a charming arc, but for some reason, Qu Menghan and the three of them saw Xingye Sakura's smile, their whole body trembled, and they had a feeling of being targeted by a fierce beast, Qu Menghan was okay to say, but Gu Jie and Nan Ruoxun were surprised, after all, the two of them were not ordinary people, and they trembled when they were looked at by others, this kind of thing was unprecedented.

"Of course." Qu Menghan coughed a few times and said, "Actually, the person who killed Nan Yongming is far away in front of him, just as Detective Sakura deduced, the murderer is you!" Bride Mei Xiao Xiao! ”

"Enough!" Seeing Qu Menghan pointing his finger at Mei Xiaoxiao, Yi Ren suddenly became angry, slapped the table, and pointed at Qu Menghan and yelled at Ning Binglan, "You police are endless!" When do you want to wish for Xiao Xiao! I didn't say anything because they had the Sherlock Detective Agency badge on their chests, and you guys are too irresponsible! Find a few imps to reason, the police are so incompetent, and they, it's just a discredit to the Sherlock detective agency. ”