On this morning, "Concubine Zhen" suddenly thought that the sword dance had not been practiced for a long time, and it was inevitable that she would be unfamiliar, so she took advantage of her leisure to practice a little, so she danced to King Yan on her birthday, so she summoned the female musicians of the palace to accompani. Sword dance is a combination of martial arts and dance, and is a perfect display of strength and beauty. The sword dance that falls into the inferior is just a good posture and can't kill. If the sword dance is practiced to the superior realm, it can make people only see the shadow of the sword but not the human figure, only pay attention to the beautiful appearance of the sword move and ignore the murderous aura hidden behind the sword move, so as to kill people invisibly, which can be called "beautiful killing sword technique". In the later Tang Dynasty, the court dancer Gongsun Damiang was a famous sword dance master. "Concubine Zhen" is also good at this, every time in the Mid-Autumn Festival, Shangyuan Night (the fifteenth day of the first month) two festivals and other festive days to the king of Yan, in order to Bo Yan King's heart.

"Concubine Zhen" danced the sword in the flower garden, the more she danced, the more interested she became, and she danced for nearly an hour, but she didn't feel tired at all. Xu Qing and Li Mingyue stepped into the flower garden and happened to see the wonderful sword dance of "Concubine Zhen". Xu Qing only felt that she had a beautiful posture and a good demeanor, plus she was as beautiful as a flower, like a fairy dancing in the sky, and her thoughts were spinning and spinning with the rotation of her body...... I was stunned for a while. "Concubine Zhen" found that the stranger brought by her daughter dared to stare at her rudely, and immediately put away her sword and stood, and reprimanded angrily: "Who are you, dare to be rude to this palace? ”

Li Mingyue hurriedly said: "Mother, he is Brother Xu that Yue'er mentioned to you last night." ”

"Concubine Zhen" was stunned and said embarrassedly: "This palace doesn't know that Gongzi Xu is coming, and Shicai's words are offensive, don't be surprised." Her embarrassed expression was even more heartwarming.

Xu Qing collected his heart, secretly scolded himself for losing his soul in front of women, and said self-deprecatingly: "I saw that the princess danced beautifully, so I took a few more looks." ”

"Concubine Zhen" knew that Xu Qing was panicking, and she didn't break it, so she smiled politely and said, "Son, please come in and serve tea." "Concubine Zhen" learned from her daughter that Xu Qing was her life-saving benefactor, he was strong in martial arts, arrogant in temperament, and even King Yan didn't take it seriously, so she was very polite to Xu Qing.

Xu Qing and the mother and daughter of "Concubine Zhen" entered the living room, sat down with the guests, and a pretty maid offered fragrant tea. After a few sips, Xu Qing put down the teacup and said what he meant, "Yesterday, when I was detoxifying the princess, I sucked the toxins in the princess's body into the body of the princess, and then I was poisoned too deeply in the princess to continue to detoxify the princess, so there is still a small amount of residual poison in the princess's body......"

"Residual poison, won't it? Hongu is in good spirits right now. "Concubine Zhen" said suspiciously.

Li Mingyue interjected: "Brother Xu said that there is, if it is just a little residual poison, you will not notice it." ”

"Concubine Zhen" nodded in agreement and said, "That's right." ”

Xu Qing said: "Then let's start now, or half an hour, soon." ”

Xu Qing and "Concubine Zhen" sat cross-legged on the bed, Xu Qing flew with both palms, and quickly patted the one hundred and eight acupoints of "Concubine Zhen" all over her body to keep the meridians unblocked and accelerate the operation of true qi. For the first time, it was very smooth to absorb his own internal force from someone else's body, and the true qi of the spring breeze and rain converged from the various meridians of "Concubine Zhen" to the vest, flowed into Xu Qing's palm, and returned to its original place. The true qi of the spring breeze and rain is like a hundred rivers returning to the sea, and the tea kung fu is all returned to Xu Qing's sea of qi.

Xu Qing struck while the iron was hot, and made a comprehensive test of the body of "Concubine Zhen" with the true qi of spring breeze and rain, not to mention that poison entered the internal organs, even if the poison entered the bone marrow, it could be forced out. There was not much residual poison in the body of "Concubine Zhen", and it did not invade the bone marrow. It only took two moments for Xu Qing to force out all the residual poison in the body of "Concubine Zhen".

Li Mingyue wanted to leave Xu Qing to have lunch at home, Xu Qing was preparing for the development of Chang'an recently, and there were a lot of things, so he didn't have lunch at Yanwangfu. Besides, Concubine Zhen Mei Lanwei is Mei Yong's sister and Mei Kaifang's aunt, Xu Qing is not at ease with anyone in the Mei family, and she doesn't dare to eat at Concubine Zhen's house.

However, Xu Qing was busy, beware of Mei Lanwei and beware of Mei Lanwei, and still didn't want Mei Lanwei to die. Xu Qing and Li Yong have too deep a grudge, and the contradiction cannot be resolved overnight. This determined that Xu Qing could not go to Yanwang's Mansion many times, so Xu Qing decided to take advantage of this rare opportunity to find out who poisoned Concubine Zhen.

Xu Qing asked "Concubine Zhen" carefully about her poisoning, and "Concubine Zhen" told Xu Qing that the symptoms were: abdominal pain, dizziness, and seizures once a day, and each time it became worse and longer. Xu Qing walked the rivers and lakes for a few days, and it was the first time he saw this kind of poison, so he asked Concubine Zhen to pass Zhao Yi (Zhao Tuozhi's pseudonym) to come in for questioning.

Zhao Yi has been wandering the rivers and lakes for 20 years, covering the Tang Dynasty and the Western Regions, searching for memories, and concluding that Concubine Zhen was poisoned by the "Seven Days of Broken Intestines", and the reason why she had a full-fledged attack in less than seven days was because Mei Congyun was improperly detoxified, causing the toxin to counterattack the heart.

The suspected murderer of "Concubine Zhen" may have poisoned himself, but it is more likely that he bought or coerced the palace maids or eunuchs of "Concubine Zhen" to poison him, so Xu Qing's investigation started with the "Concubine Zhen" dormitory, and asked "Concubine Zhen" to summon the two eunuchs of the "Concubine Zhen" dormitory, 12 palace maids and 36 guards on errand all to the living room.

"Concubine Zhen" instructed: "This palace was secretly poisoned, but fortunately it was saved by this Xu Qing Gongzi," pointing to Xu Qing beside him, and continued: "Xu Gongzi suspects that there is a traitor in Shuyu Palace (the name of Concubine Zhen's bedroom), so he summoned you all." You all raise your heads and let Xu Gongzi take a closer look, he will never wronged you. ”

The guards, palace maids, and eunuchs raised their heads one after another. Xu Qing first inspected the palace maids, carefully one by one, to see if they were easy to look over, second, to see if their faces and eyes had a look of weakness and horror, third, to see if their bodies and physiques did not look like people who practiced martial arts, and fourth, to see if they had calluses on their hands, and the hands of a person who often used weapons usually had calluses. To force out the secrets of their hearts, they can also rely on the work of "seducing souls".

Xu Qing carefully tested one by one, until he found the ninth palace maid, he found that the texture on her face was not clear, and he suspected that after a disguise, he reached out to touch it, and the palace maid hurriedly tilted her head back. Xu Qing said: "Don't move." With a commanding tone, the palace maid really didn't dare to move, and stiffened her face. Xu Qing noticed that the complexion on her neck was fair, only "ice muscle and snow skin" could be described, the skin on her neck was so good, the skin on her face could not be so ordinary, Xu Qing could almost conclude that she was the murderer who poisoned "Concubine Zhen". Xu Qing's hand approached the palace maid's cheek inch by inch.

Xu Qing's hand slowly stretched out to the palace maid's cheek, the palace maid's heartbeat suddenly accelerated, Xu Qing heard it, and firmly believed in his judgment, the truth was about to be revealed, Xu Qing took a deep breath, calmed down, and said calmly: "Mingyue, bring water, I want to wash off the disguise powder on her face and see her true face of Lushan." ”

Before Xu Qing finished speaking, the palace maid suddenly became difficult, slapped Xu Qing with a false palm, pushed the palace maid next to Xu Qing, turned around and fled. Xu Qing carelessly underestimated the enemy, and was hit in the chest by her palm, but fortunately, the palace maid made a hasty move, and the internal strength was not deep, so Xu Qing was not injured. Xu Qing secretly scolded himself for being too careless, scolding and scolding, his reaction was never slow, and he jumped out like an arrow, but after all, he was two beats slower. Xu Qing rushed out of the door, and there was no trace of the palace maid.

Xu Qing did not chase the suspect. "Concubine Zhen" asked Li Yong to mobilize the army and arrest the whole city. However, Youzhou City is too big, with tens of thousands of residents, and a lot of floating population, so it is different from looking for a needle in a haystack to find a person in the huge Youzhou City. The investigation failed, and the murderer who poisoned Concubine Zhen became a mystery.