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For Song Yun'er, Yang Qiuchi doesn't need to hide the progress of his investigation, on the contrary, he needs to tell her that let her learn some practical investigation techniques, especially some common forensic common sense that does not require modern equipment (of course, except for some things that are too modern, so that she can not know things that will mess up the world when she sees them, such as computers, microscopes, digital cameras, etc.), let her learn, and hope that she can become her right-hand man in the future. Pen % fun % Pavilion www.biquge.info

Yang Qiuchi asked Zhang Zhixian, the post envoy, Nangong Xiong and others to wait outside the post station. Then he took Song Yun'er to the room where the emperor and Concubine Xian lived at the time, pointed to the place where she was lying on her stomach just now, and said, "Yun'er, take a closer look here, see if you can find anything?" ”

Song Yun'er also followed Yang Qiuchi's example, lying on the ground with her buttocks cocked, her nose sticking to the ground, looking at it for a long time, and said dejectedly: "Except for dust and small pimple particles, there is nothing." ”

"Very good, it's just those little lump pimple particles, pay attention to it, what is it?" Yang Qiuchi only picked a few grains just now, and there were still some on the ground.

Song Yun'er pinched a small pinnose-sized particle with her fingers, looked at it in the bright light for a moment, and said hesitantly: "It seems to be...... It seems to be cinder. ”

"That's right, you have good eyes!" Yang Qiuchi praised, thinking that I still have to rely on a microscope to see it, which is really embarrassing. Then he said, "Have you ever thought about it, when the virtuous concubine and Niangniang lived here, it was a hot summer, if you want to use charcoal fire to keep warm, it is only used in winter, if you want to use charcoal fire to cook medicine or something, it will not be taken to the bedroom of the emperor and Niangniang, and it will make it smoky." So, don't you think it's strange that the charcoal on the ground comes from? ”

Listening to Yang Qiuchi's analysis, Song Yun'er nodded: "Yes, how can there be cinders on the ground in the room in the cool summer?" Concubine Xian Niangniang was poisoned by charcoal poison, could it be that someone put the charcoal stove in to murder Concubine Xian? ”

Yang Qiuchi smiled and patted her on the shoulder: "This possibility is very big!" That's what I judged, so I checked every room that was occupied at the time. ”

Song Yun'er asked suspiciously, "What are you doing to check the room......?" As soon as he was halfway through speaking, he immediately thought of the reason, and said excitedly: "I know, if the murderer wants to put the charcoal fire into Concubine Xian's room, and unknowingly poison Niangniang with charcoal, he must first raise the charcoal stove in his room, and then mention Niangniang's room and quietly put it in." However, there are so many windows, how do you know that the murderer opened this window and let it in? ”

"It's very simple, the maid Lian'er said that she has been waiting for Concubine Xian at the door, so the murderer can only stay away from the maid Lian'er as much as possible. This is the last window, of course choose here. Moreover, this position is exactly the position opposite the head of the bed, and the virtuous concubine Niangniang who sleeps on the bed generally can't see the movement in front of the top of her head. Concealed surnames can be guaranteed to the greatest extent. ”

Song Yun'er nodded, and then said suspiciously: "I remember that Lian'er said that the imperial doctor said that the virtuous concubine Niangniang was yin and wanted to avoid the wind and cold, so she couldn't open the window to sleep in the hot summer, since the window was closed, how could the murderer open it from the outside?" ”

"This shows that the murderer has entered the mother's room before!" Yang Qiuchi said affirmatively, "Taking advantage of the unpreparedness, I quietly pulled out the latch of the last window." ”

Song Yun'er thought about it again, shook her head and said: "It's still not right, even if the charcoal stove is placed in the direction of the mother's bedside, she can't find that the murderer opened the window and put the charcoal stove in, but the light of the charcoal fire will also cause the mother's vigilance, I remember the maid Lian'er said that the mother is afraid of light when she sleeps!" So it should be sensitive to light. ”

Yang Qiuchi said: "That's right, but if the murderer can enter the mother's room, it means that it should be someone next to the mother, so the murderer knows this completely and will definitely find a way to block the light, so that the mother will not find out." Yang Qiuchi said with a smile.

"Block? With what block? ”

"Let me show you one thing first, and you should know the answer." Yang Qiuchi took Song Yun'er's hand, came to the room he had just checked, and pointed to the iron kettle on the table: "Take a look, what did you find?" ”

Song Yun'er picked up the iron kettle, shook it, it was empty, looked at it carefully, and found nothing, and was puzzled, suddenly sighed, stared at a round slightly yellowed mark on the table, and said, "What is this?" ”

She slowly placed the iron kettle in her hand on the mark, and it was a perfect match! Song Yun'er shouted happily: "I know, this is the mark of this iron kettle on the table!" It shows that the murderer used this iron kettle to put it on the stove to block the fire at that time, so as to avoid the mother from discovering it, because the iron kettle was burned by the fire, this made a mark on the table! ”

"That's right!" Yang Qiuchi nodded approvingly, walked to the place where he had extracted the particles in the room just now, and said: "There are also some cinder particles here, after my inspection, they are very familiar with the characteristics of the cinder found under the last window in Niangniang's room, indicating that it is the same kind of cinder." ”

Song Yun'er clapped her hands and said: "Now it's clear, when the murderer was in the mother's room, he quietly pulled out the latch of the last window." Then he sneaked into the small room where he put charcoal, took the charcoal stove and charcoal, returned to his room, made a charcoal fire, put an iron kettle, estimated that Niangniang fell asleep, carried it to the back window of Niangniang's room, put it in, closed the window, and poisoned Niangniang with charcoal. Because the charcoal stove was taken from the room where the charcoal was kept, there was a lot of cinder on the ground, so the bottom of the furnace was also glued to the cinder, and the fire was made in the murderer's room and in the place where the charcoal stove was placed in the mother's room. ”

"Very well analyzed!" Yang Qiuchi praised, "Because this post station is very simple, the room where the emperor and the mother live is also very narrow, and the charcoal poison quickly spreads throughout the room, this poison is colorless and tasteless, and the poisoned person will feel headache, nausea and vomiting, but at this time, the poisoned person has been due to the severe lack of oxygen in the body caused muscle weakness, unable to call for help and unable to escape, and finally died." ”

"Then since there is charcoal poison in the room, why haven't the people who came in behind have been poisoned?"

"If it's poisoned, won't it be a leak?" Yang Qiuchi smiled, "The murderer used charcoal poison to kill people, just so that others can't find out, to be honest, if you kill people in this way in the hot summer, those imperial doctors probably won't notice." They are good at seeing a doctor, but they are no longer good at investigating the cause of death, and they will only think about the disease with their surname. Therefore, when the murderer quietly took the charcoal fire from the mother's room, he must have opened the window behind him, scattered the charcoal poison inside, and estimated that it was almost dispersed, and then closed the window. One night was enough time for the murderer to take advantage of. ”

Song Yun'er thought for a while, smiled and said, "Brother, you just rely on a few grains of cinder on the ground to come to this conclusion, isn't it a bit sensational?" ”

Yang Qiuchi smiled, pulled her to the small room where the charcoal was placed, pointed to the stove outside and said: "After the emperor left, these stoves were sealed, and they still retain their original appearance, you take a closer look and see if you can find something?"

Song Yun'er squatted down, checked them one by one, and shook her head: "It's nothing special!" ”

Yang Qiuchi sighed slightly: "Didn't I say that any crime will leave traces, it's up to you to find it." This trace is right in front of you, and if you can't find it, you won't be able to solve the case. ”

Song Yun'er was not convinced, squatted down and looked carefully again, suddenly sighed, lifted a stove, took a closer look into the furnace, and reached in and pulled out a handful of black flickering scraps: "What is this?" It's weird. ”

Yang Qiuchi already had a smile in his eyes: "You found something strange, then think about it again, what's so strange?" ”

Song Yun'er observed carefully, suddenly her eyes lit up, she put down the stove, went inside, checked it carefully for a while, ran out and shouted happily: "I know!" ”

"Know what?" Yang Qiuchi was very satisfied with Song Yuner's quick response. It's really teachable.

Song Yun'er pointed to the stove on the ground: "This is the stove that the murderer used to burn charcoal and poison Concubine Xian, the murderer estimated that after Concubine Xian Niangniang was poisoned, he returned to the back window, lifted the stove out, returned to the room, used the water in the iron kettle to extinguish the coals in the stove, and then put the iron kettle on the table, carried the stove back to the room where the charcoal was placed, poured the extinguished charcoal on the ground in the inner room, and put the stove back in the outer room. Just now I found more than half of the charcoal that had been extinguished by water, and the handful I pulled out was the trace of soot that had been extinguished by water in the furnace! ”

Bang Bang Bang! Yang Qiuchi applauded and smiled: "Wonderful! The case repeats itself, and it's very exciting! This evidence is found, and it is connected with the previous evidence of cinder and the evidence of iron kettle burning, and a complete chain of evidence is formed, and this reasoning can be established! ”

Song Yun'er also smiled, thought for a while, and asked, "Who is the murderer?" ”

"Judging from the investigation, it is obvious that the person who killed Concubine Xian Niangniang must be someone close to her, this range is very small, and it is not difficult to find out the real culprit. If you think about it, you should be able to find out who is the real culprit. ”

Song Yun'er frowned and thought for a while, and said, "The people around Niangniang! The murderer wants to start the charcoal fire, this time will not be short, and the charcoal fire will be extinguished later, and the smoke produced is also easy to attract the attention of others, and it must be in a hidden place, so it is most likely in his own room, there are not so many houses in this post station, and the person who can live in a room alone should not be a palace maid or an ordinary eunuch, is it ......?"

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(To be continued)