Liu Zhixin's mother and Zhao Guangyi's mother are brother and sister. Liu Zhixin and Zhao Guangyi are also cousins, but although Liu Zhixin's family background is very good, his life is not good, when he was three years old, his father died, and since then he has lived with his mother.

Zhao Kuangyin took care of this cousin very much, only in his twenties, he successively served as a martial arts envoy in the palace, and in less than a year, he was named the Jinzhou Thorn History, the West Palace Envoy. But in fact, it is still the position of the envoy of Wude, and the others are just promoted officials and get more money.

After Zhao Guangyi succeeded to the throne, he changed the Wude Division to the Imperial City Division. In charge of the entrance and exit of the palace, the guards of Zhou Lu, and the opening and closing of the palace gate. Each door to two bronze charms and an iron card, the left symbol to leave the door, the right symbol to ask the key, the iron card is to ask the key person to follow, on time to check.

All ministers and bureaucrats meet the emperor, and there is a fixed place for getting on and off the horse, from the prime minister and the prince down, and there is a fixed number of people to bring. The inner chamberlain sent his servants to observe the movements of his subjects and report to the emperor.

Therefore, it can be seen that this cousin, the Zhao family still trusts him very much, and makes him their housekeeper. Because of this, Liu Zhixin is very trusted by the officials. And this Imperial City Division is not only responsible for the guards of the palace, but also the eyes and ears of the emperor, responsible for spying on the intelligence of the capital.

Therefore, the first thing that Zhao Guangyi thought of was this cousin.

Liu Zhixin received the will and began to investigate, and the first thing that came to mind was the eunuch on duty. The eunuch who served at that time was Liu Lun, and Liu Lun said that the person who visited the charcoal basin at that time was a small eunuch named Gao Qi and Wang Si.

Liu Zhixin hurriedly detained the two little eunuchs and immediately interrogated them.

The two little eunuchs were taken to the yamen of the Imperial City Division, the yamen of the Imperial City Division, outside the palace gate, although the Imperial City Division is not a special interrogation agency, but in the face of these intimidations, the two little eunuchs have already been scared stupid.

Gao Qi just said: "Lord Liu, it's really not a trivial matter, what should be said, the villain has all finished speaking!" ”

Liu Zhixin's eyes were cold, very majestic, and he shouted: "According to what you say, is there anything you shouldn't say?" ”

When Wang Si heard this, why did Gao Qi not speak so much, he quickly took over the conversation and said, "My lord, there is nothing that should not be said, Gao Qi is speechless for a while!" ”

Liu Zhixin shouted: "I didn't ask you, don't interject!" Gao Qi, you tell me the situation again in detail, if there is the slightest discrepancy from what you just said, watch your head! ”

Gao Qi hurriedly said: "Today, it is said that the villain and Wang Si are on duty, responsible for the emperor's daily life." At that time, the emperor received foreign ministers in the main hall. And the one who serves in the palace is Gao Gonggong. The villain and the fourth king served outside the palace. But I heard Gonggong Gao come out and call the villain to call Shi Tan, saying that the emperor felt too cold! ”

Liu Zhixin didn't speak, only stared at Gao Qi with his eyes, Liu Zhixin believed that this Gao Qi's words must have hidden secrets, and he wanted to find loopholes in his words.

But I heard Gao Qi continue: "At that time, the villain and Wang Si went to fetch the charcoal basin, and the charcoal was no different, so the villain made the charcoal basin angry as usual, and then sent it in!" ”

Liu Zhixin asked: "Nonsense, angry fire, the flame of the charcoal basin should be red when it burns, how can it appear and be extinguished not long after, and the smoke is getting thicker and thicker?" ”

Gao Qi hurriedly said: "The villain really doesn't know! ”

Liu Zhi thought about it in confidence, since the emperor was poisoned by stone charcoal gas, it might be a problem with stone carbon, but after thinking about it, he also carefully checked it, and there was no problem.

The words of Gao Qi, over and over, are exactly the same, and then interrogate Wang Si, the same as theirs. However, Liu Zhixin also knows that problems may arise elsewhere, and there are other places that have not been investigated.

At this time, a deputy envoy of the imperial city named Li Xin next to him walked in, saw Liu Zhixin, and said: "My lord, you said that the weather is strange, okay, it snowed heavily in the morning, and in less than half a day, the snowflakes stopped, and now the sun is actually out!" ”

Where did Liu Zhixin be in the mood to pay attention to him, but this Li Xin's words seemed to remind Gao Qi at that time, Gao Qi hurriedly said: "Adult, the villain knows where the problem is, it should be because the charcoal is wet!" ”

Liu Zhixin was stunned for a moment, his face changed instantly, and he shouted: "Nonsense, this charcoal is obviously stored in the warehouse, how can it be wet by the heavy snow?" Isn't it where you received your charcoal? ”

Gao Qi hurriedly said: "Yes, Father-in-law Gu, who is in charge of the charcoal house, can prove that the villain received it in the charcoal house at that time!" ”

Liu Zhixin seemed to have made a major discovery, and hurriedly said: "Quick, take this official to check!" ”

said that at this time, Zhao Yuanzuo and Zhao Yuankan entered the palace together, but saw that Zhao Guangyi was already lying on the **, still conscious, and Queen Li was accompanying him. There are also Sun Guifei, Fang Guifei and several other concubines to accompany them.

Zhao Yuanzuo finished saluting in turn, and said: "Father, which bold thief dares to murder his father, let his sons go and capture him!" Shattered the corpse of ten thousand pieces, and let out this evil breath for his father! ”

Zhao Guangyi was very happy to see his favorite son, and said: "The emperor's heart, my father has received it." Only, how did you find out about my poisoning? ”

Zhao Yuanzuo was stunned in his heart, it seemed that his father was still a little suspicious, and hurriedly said: "It was the message of Lord Feng Manlou who entered the palace to face the saint, and the sons hurriedly entered the palace to visit their father!" ”

Hearing this, Zhao Guangyi smiled in his heart and said, "Okay, this wind is full of buildings, I have also seen it." Although he is not very smart, he has a pair of discerning eyes, can see everything, and is stable, and the emperor can be close to him. After all, the emperor is my eldest son, and with such a person by his side, I can rest assured! ”

Zhao Yuanzuo didn't know the meaning of Zhao Guangyi's words, but he knew that it was for his own good, and hurriedly said: "Thank you, father!" According to Erchen, this time, my father was killed by people on a regular basis, so I wanted to ask my father for an order to catch the murderer! ”

In fact, Zhao Guangyi's statement is to let Zhao Yuanzuo cultivate his own power, after all, as the eldest prince and Zhao Guangyi's most trusted person, of course he does not want to become a loner after inheriting the throne in the future.

Although Zhao Yuanzuo hadn't fully understood, Sun Guifei next to him had secretly changed her face. This is obviously a hint that Zhao Yuanzuo will be the prince in the future.

From this point, it can also be seen that this time the dispute between the reserve and the prince, the official family also has an idea in their hearts. Sun Guifei didn't know whether she was happy or worried,

Zhao Guangyi just smiled and said, "This matter, don't bother the emperor, I have already sent Liu Zhixin, the envoy of the imperial city, to do it." ”

Zhao Yuanzuo didn't say anything, but the father and son chatted for a while. Zhao Guangyi was still sick after all, and he soon felt tired, so the two brothers Zhao Yuanzuo hurriedly asked him out.

Zhao Yuankan said: "Father, ensure the dragon body." I heard that you are suffering from carbon monoxide poisoning, and you will be fine after three or five days of cultivation. ”

Hearing this, everyone was stunned, and Zhao Guangyi suddenly came to his senses and asked, "Emperor, what did you say?" What is carbon monoxide? ”

Zhao Yuankan turned around and said, "Enlighten the emperor." This carbon oxide is a kind of gas. The qi we breathe is not one, but many kinds. Among them, it is called nitrogen, which accounts for more than 70% and nearly 80%, and there is a gas, called oxygen, which accounts for a little more than 20%. The rest is carbon dioxide, and dozens of other gases. These gases are not poisonous! ”

After speaking, Zhao Yuankan's heart was full of showing off, but the expression on his face was calm, and he continued: "And there is a gas called carbon monoxide, which is poisonous. Wood, cloth, and charcoal, oil and other things, when burning, will consume the oxygen in the air, if the house is not ventilated, the burning charcoal, will consume the oxygen, so that down, the oxygen is not sufficient, the charcoal will not be burned into dioxide, can only be burned into carbon monoxide, which is toxic gas. ”

Zhao Guangyi was stunned for a moment, it turned out that there were so many explanations, and asked: "Then why was everyone else okay at that time, and only I was fine?" ”

Zhao Yuankan said: "Because my father's body is relatively weak, there is only one kind of breath we breathe, and that is oxygen that we need." But when oxygen was not sufficient, it was replaced by the toxic gas of carbon monoxide. When my father was weak, his breathing intensified, so he inhaled more poisonous gas! That's why my father was the first to be poisoned! ”

So that's it! When Zhao Guangyi heard this, he said, "How did the emperor know? In the past, we only knew that the gas of the charcoal was poisonous, but we didn't know that it was like this! ”

Zhao Yuankan said truthfully: "This is what Feng Manlou, the courtier who Yu Hang just entered the capital, said!" ”

Zhao Guangyi was stunned for a moment and said, "Sure enough, it's him, I guessed it!" It turns out that our Great Song Dynasty still has such talents! ”

Zhao Yuankan took the opportunity to say: "Father, in fact, Lord Nafeng also said that since it is the murderer who wants to poison the emperor, he must know that this poisonous gas must be in the closed hall before it will be emitted." Although the murderer did not understand the principle of carbon monoxide, he must have known about this condition. Therefore, the murderer must be someone who is often close to charcoal, or who has often used charcoal, and there is a murder, before he knows. ”

When Zhao Guangyi heard this, he had already thought that there was no such case in the palace, so it must be someone from outside the palace, and it must be a minister.

Those ministers almost all use charcoal for heating at home, so they have the conditions. But thinking that there are so many ministers outside the palace, there is no way to verify it. So I thought about it and gave up.

However, Zhao Guangyi is still a little unwilling, and he must investigate this matter thoroughly. However, at this point, I don't know how to find out, so Liu Zhixin will definitely not be able to find clues. It seems that you still have to give it a try!

However, Zhao Guangyi thought about it and asked, "These, are they all said by Feng Manlou?" ”

Zhao Yuankan replied: "Exactly! ”

Zhao Guangyi thought for a while and said, "You guys go down first!" Think about it! ”

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