That night, five men in black took advantage of the cover of night to quietly come to the largest Santai gambling house in Fengle Fang, but when the five men in black sneaked into the backyard, they found that there was no one, they searched around the room, and they didn't even see a figure, so they could only return in vain.

Early the next morning, Li Yuanchang went to the East Palace to see Li Chengqian, Li Chengqian had already solved the person who was connected with Yu Santai, creating the illusion of drowning, and when Li Yuanchang told Li Chengqian the news of Yu Santai's disappearance, Li Chengqian's heart suddenly cooled, such a key person suddenly disappeared, what does that portend, anyway, this is not a good sign, when he thought of the poisonous chicken wishbone flowing into the Taiji Palace, poisoning a talented person, Li Chengqian was extremely frightened, trembling all over, He seemed to have seen Li Shimin decree to abolish his position as crown prince.

Li Yuanchang saw Li Chengqian like this, as a good friend, he naturally couldn't be happy, and thought of a way for him, after a long time, Li Yuanchang, who was still outside, had a flexible brain, and proposed: "Chengqian, it's better to ask Zhao Guogong for help." ”

When Li Chengqian heard this, he suddenly saw a glimmer of hope, and shouted excitedly: "Yes! Right! Helan Chushi, go and summon Zhao Guogong, and say that he has something to ask for. ”

After most of the hour, Sun Wuji, the eldest prince of Zhao Guo, hurriedly came to the East Palace to meet Li Chengqian, because the eldest grandson Wuji did not treat Li Yuanchang very well, so Li Yuanchang hid in the inner room in advance to avoid.

The eldest grandson Wuji first made a courtesy to Li Chengqian (the prince is also a king), and Li Chengqian returned to a nephew to see his uncle's junior ceremony, and then the eldest grandson Wuji asked: "Your Highness is so urgent to summon the old minister, I don't know why?" ”

Like a child who had done something wrong, Li Chengqian pretended to be annoyed, lowered his head and said, "Uncle, I made a mistake and made a big mistake. ”

The eldest grandson Wuji's heart jumped when he heard this, and he hurriedly asked, "Are you ...... What did you do again? He used another word, and it was obvious that he knew what Li Chengqian had done before.

Li Chengqian squeezed out a few tears, raised his head and cried: "The poison in Li's chicken wishbone shop was ordered by someone I sent. ”

"What!" The eldest grandson Wuji was shocked, and then he stomped his feet in anger, "You...... How can you be so confused! ”

"Uncle, I know it's wrong, please save me, you must save me." Li Chengqian pounced on it, actually knelt down in front of the eldest grandson Wuji, hugged the eldest grandson Wuji's legs, and howled, "If my father knows, he will definitely abolish me, uncle, I know it's wrong, you must save me, now only you can save me......"

"Get up! Get up! What kind of system are you ......" The eldest grandson Wuji tried hard again and again, and finally pulled Li Chengqian to his feet, glared and scolded, "As the prince of a country, you can only kneel to the parents of heaven and earth, how can you kneel indiscriminately!" ”

Li Chengqian raised his sleeves to wipe away the only trace of tears, and said in a mournful voice: "My mother died, uncle, you are my mother's brother, and for Chengqian, you are equivalent to my mother." ”

The eldest grandson Wuji's heart softened when he heard this, yes, his sister is dead, and his uncle, who is his only support, besides, he has always unswervingly supported Li Chengqian, and now that Li Chengqian is in trouble, how can he stand by and watch, so he softened his tone and said slowly: "Is there something wrong, tell me carefully." ”

Even when Li Chengqian told what he had done, when he heard that Yu Santai was missing, he couldn't help frowning, squinting and sighing: "This matter ...... Don't underestimate it, if this Yu Santai escaped by himself, then it's easy to say, but if you are robbed by someone with a heart and want to stir up the storm, even if you can keep the position of the prince, you will not be able to escape the thunderous wrath of your father. ”

"Nope! Don't let your father know! Li Chengqian shook his head again and again, screaming in panic.

"Calm down!" The eldest grandson Wuji snorted at him, pondered for a moment, and said, "Leave this matter to me to deal with, you stay in the East Palace, you are not allowed to go anywhere, no one is allowed to see you, and besides, don't do anything, wait for my news." ”

"Yes, all the Chengqian listen to their uncle, and they all listen to their uncle." Li Chengqian made a continuous sound, how could he have half the demeanor of a prince.

Looking at the Tang Dynasty, except for Li Shimin, there is almost no one who can wrestle with the eldest grandson Wuji, and since the eldest grandson Wuji has taken over this matter, Li Chengqian is suddenly a lot more relieved.

The eldest grandson Wuji returned home and issued an order, and suddenly, all the dark lines of the eldest grandson's family lurking in Chang'an City were active, looking for traces of Yu Santai everywhere, like a net of heaven and earth, and the power of the eldest grandson Wuji could be seen.

Just when Li Chengqian and Li Tai were busy competing for Yu Santai, Cheng Yanjin also sent people to find the registration information of those who bought arsenic in all the pharmacies in Chang'an and Jingzhao, but the result was not satisfactory, there were a total of 68 pharmacies in Jingzhao, and in the past seven days, the most arsenic was sold in five taels, and it was purchased by three different people, and there were no repeated purchasers of arsenic in other pharmacies.

Lu Yun handed over the information obtained to Hu Xiaohai overnight for integration, Hu Xiaohai used the list method to compare, and immediately found the problem, there was a problem with the sales volume of arsenic in the twenty-five pharmacies in the three cities of Chang'an, Lantian and Jingyang, not that they made false accounts, but three days ago, their arsenic sales volume had a very obvious increase, and the amount of arsenic sold in three days was more than the amount in the previous month.

Early this morning, Lu Yun told Cheng Yanjin the news, and Cheng Yanjin immediately sent people to start investigating the dozens of people who bought arsenic, and finally found a common denominator, most of these people who bought arsenic were ruffians who were mixed in Fengle Fang, and many of them were gamblers, and they often haunted Santai Gambling House.

Cheng Chumo used to be a big man in Chang'an, and he knew everything about the underworld in Chang'an, and when he mentioned Fengle Fang and Santai Casino, he immediately thought of a person, Yu Santai, the owner of Santai Casino.

Lu Yun targeted Yu Santai, he went to the Santai gambling house to inquire, and the result was: Yu Santai is missing.

After Cheng Yanjin got the news, he immediately began to send people to search Yu Santai in the city, he could be sure that this poisoning case was definitely related to Yu Santai, and at the same time, he took Lu Yun to the prison of the Criminal Department again and told Li Hao about it, because he had already entered last time, this time the prison guards were not easy to stop, or that sentence, only one person could go in, this time it was still Lu Yun who went in, after all, only he could understand Li Hao's code words.

Lu Yun was led by the jailer to Li Hao's cell, Li Hao was sleeping again, with his lazy character, what else could he do in the prison except sleep.

"Young master, I've come to see you." Lu Yun shouted inside.

Li Hao sat up from the bed, rubbed his eyes, yawned, jumped out of bed and came to the prison door, only one meter away from Lu Yun.

"Tut-tut" Li Hao looked at Lu Yun and smacked his tongue, "Look at your dark circles, where did you go to play last night?" ”

Lu Yun said lightly: "I gambled overnight in the Santai Gambling House." ”

The jailer on the side looked at Lu Yun suspiciously, and secretly wondered in his heart: "Is this guy sick?" His master was imprisoned, and he still had the heart to go to the gambling house to gamble for money, and a gamble was a night, and he gambled if he gambled, and he said it so openly, and he was not afraid that his master would be angry. ”

Li Hao didn't get angry, and even his expression didn't change much, and asked, "Who is in charge of Santai Gambling House?" ”

"Naturally, it's Yu Santai, the owner of the gambling house." Lu Yun said expressionlessly, "It's a pity that after he won a lot of money yesterday, he couldn't find another figure." ”

"Oh......" Li Hao nodded, he had already received Lu Yun's secret message, the poisoner was Yu Santai, and this product is now missing.

Li Hao talked to Lu Yun for a few more words, as if he remembered something, and suddenly said: "Oh, by the way, yesterday King Wei came to visit me, saying that he could save me, let me beg him, you say it's ridiculous." ”

Lu Yun said lightly: "The young master is a hard bone and doesn't ask for help easily. He also received a code message from Li Hao, and Li Tai, the king of Wei, may know the clues.

"No, who am I! I'm Li Shi crazy......" Li Hao pretended to talk for a long time, saying a lot of stinky and shameless words, which made the jailer blush, it was the first time he had seen such a shameless person when he was so big.

After a while, Lu Yun walked out of the prison of the Criminal Department, Cheng Yanjin had been waiting in the carriage outside the door, Lu Yun came to the carriage and saluted the carriage, and said, "Grandpa, the villain has already visited my young master." ”

Cheng Biting Jin's voice came from the carriage: "What did he say?" ”

Lu Yun said: "The young master said that King Wei had personally visited him. ”

"King Wei?" Cheng Yanjin asked suspiciously, "What did he do when he went to visit Li Hao?" ”

Lu Yun said: "King Wei said that he could save the young master, let the young master beg him." ”

"Okay, got it, let's go."

The carriage started slowly, leaving the prison of the Criminal Department, and Lu Yun was guarding the carriage, like a guard from the Lu Guogong Mansion.

And since Lu Yun went back, there was a group of five people from Lantian set off, came to Chang'an City, hidden in the vast sea of people in Chang'an, Li Hao's special combat team dispatched, this time the mission was the Flying Eagle team, the Flying Eagle personally led the team, because this mission is a hidden reconnaissance, so it is not appropriate to bring too many people, the five special combat team members have been carefully disguised, and set up a secret post outside the Wei Wangfu.

The Criminal Department is still busy collecting evidence, and they also thought of starting with the clue of arsenic, but in the end, they found that the arsenic sales in pharmacies in Chang'an and even the surrounding Jingzhao are very normal, this clue is broken, the Criminal Department Shangshu has a headache, of course, a headache, according to Li Shimin's meaning, this case must be tried fairly, and it cannot be tried as an unjust, false and wrongful case, and the most important thing is that Li Hao cannot be tortured, and they can only rely on criminal investigation methods to collect evidence, but now the only clue is also broken, and the case has entered a dead end.

Shangshu of the Criminal Department decided to interrogate Hu Laohan and his wife and other clerks tomorrow, and if necessary, he could use the punishment a little, and on this night, Shangshu of the Criminal Department found a document on his desk, and when he opened it, it was actually a few charts, which were the charts made by Hu Xiaohai, and from the first chart, it can be clearly seen that the sales trend chart of arsenic in each pharmacy.

The second chart recorded the detailed information of the arsenic buyers of each pharmacy, and after reading it, the Shangshu of the Criminal Department narrowed his eyes and said coldly: "I see, it is really a method of breaking the whole into zero, it is simply done seamlessly, no wonder even our Criminal Department has been blinded." ”

That night, a large number of people from the Criminal Department went out to surround the Santai Gambling Houses, and all the people from the three Santai Gambling Houses were arrested and put into prison, and the Shangshu of the Criminal Department, who had been suppressed for a long time, directly ordered the interrogation of the people of the Santai Gambling Houses overnight, and the result was obtained in only half an hour - the owner of the gambling house, Yu Santai, disappeared last night.

Shangshu of the Criminal Department immediately issued an official document on the arrest of the sea, wanted by Yu Santai, and then began to write a note, preparing to report to Li Shimin early tomorrow morning.