"Wei Du picks up Yan Zhao, and the beauty praises Hibiscus. Qi water flows jasper, and the boats and cars rush every day. The green building sandwiches both sides of the strait, and the ten thousand rooms are noisy and singing. The world is called noble, and every time you meet. "The poem fairy Li Bai wrote a poem "Wei County's Beisu Ming Mansion because of the North Tour", which exhausts the scenery of Wei County.

Wei County, Jizhou, from Han Gaozu County, has jurisdiction over 18 counties. To Emperor Guangwu, more than fifteen counties, the county governs Yecheng, which is still in use. Yecheng is wide from north to south and narrow from east to west, with an area of seven or eight square kilometers. It is divided into four gates, southeast, northwest and northwest, and the city wall is piled up with wall bricks, which is simple and majestic. The streets are paved with bluestone and vary from about five to six meters wide.

There are many shops on both sides of the street, and buildings such as wine shops, teahouses, shops, workshops, and green buildings extend along the street into the distance, with green tiles and red bricks. Selling rice, medicinal herbs, fat powder, calligraphy and painting, antiques, slaughtering dogs and sheep, selling wine and making tea, and so on. The streets are full of pedestrians, chariots and horses, vendors in short shirts and shorts, soldiers in deep clothes and high crowns, and pedestrians and customers in various costumes. There are also the drunken moon building, the green house woman who looks left and right and looks forward to leaning on the carved railing: spring peach, summer lotus, watching the qin, listening to the thrush and looking at the eyebrows, and scratching her head.

A prosperous city with smoke in half of the city, the smoke of the cooking is wrapped in the willow color of the poolside, accompanied by all kinds of shouting, quarrelling, bargaining, and horse neighing intertwined in the ancient city of Wei County.

In the middle of October of the sixth year of the Eastern Han Dynasty, the sun gradually slanted westward, and the warm sunlight shone on the mottled city wall through the distant mountains and forests, and the ancient city of Wei County was bathed in a solemn atmosphere. The east gate of Yecheng was still not closed at this time, and there was still an endless stream of gate lords, merchants, and farmers and hunters entering and leaving the city gate.

The little colonel of the gate reclined on a small stone pier by the city gate, scratching and itching, while looking at the official road outside the city gate. The official road winds for dozens of miles from north to east, and is the hub road that maintains the traffic between Jizhou and Wei County. The official road is still quiet and quiet, and in another hour, you can close the door and hand over the shift, and then make an appointment with Zhang San, Li Si and other three or five brothers to burn a pot of wine upstairs in the drunken moon, and by the way, go to taste the rouge of spring peach and summer lotus.

The soldiers guarding the gate naturally went up and down, except for two or three recruits who were still in good spirits, and a group of veterans gathered around to tell a meat joke, or teasing the peasant women who entered and left the city, and the crowd erupted into laughter from time to time.

"Gotcha, gotcha, gotcha!"

A thunderous sound of horses' hooves behind him broke the colonel's assumptions, and the colonel turned his head angrily to see several tall horses in the city gate galloping towards the official road outside the city, throwing the flying dust far behind the horses.

Although there were only seven or eight horsemen, the momentum was better than that of a hundred and ten horsemen. Except for the leader, everyone wore iron helmets, pale red shirts, black armor tied to their chests and backs, a pair of dark black boots on their legs, and dark red cloaks fluttering behind their backs.

The leader was a young man, seventeen or eighteen years old, not wearing an official uniform, but a white curly coat, a black ribbon around his waist, a beautiful face, a towering nose, eyes like stars, long hair scattered like ink on the white clothes, only a little with a white belt tied at the back, white clothes and black hair, skirt fluttering.

"The city gate is heavy, how can you wait for the rampage, quickly stop and be inspected! …… Whew! A recruit looked nervous, brandished a large knife in his hand and shouted, and before he could finish speaking, he was kicked to the ground by the colonel.

The veteran next to him pulled up the recruit and scolded in a low voice: "Shut up! Impermanence in white! That's the thief Cao Peng Wang of this county joining the army! ”

"Wang joins the army? Even if it's to join the army, what's the big deal? ”

"What's the big deal? Is it great to be like you? The veteran glanced at the recruit with contempt, "Wang joined the army is a native of Liaodong, lost his father at a young age, moved to Yecheng with his widowed mother, and was eager for justice and righteousness, and his mother was filial piety, and the city praised him." In the spring of last year, the thieves robbed the people's girls on the street, and Wang joined the army and stepped forward, pointing at the bandits and swordsmanship, so he was recruited as a thief Cao Peng by Lord Taishou. Less than a year after Wang joined the army, the surrounding Xiaoxiao was cleared. ”

Looking at the majestic and majestic cavalry not far away, a trace of envy flashed in the veteran's eyes, and then said: "It is said that the king has a very good set of training in the army, and it is said that it is forbidden to do so. Look at the statue of a few of you who sit without sitting or standing, and then look at the others, a few horses can't catch up with this damn gap! ”

Several young soldiers showed respectful looks on their faces, straightened their clothes and armor, held the hilts of their swords, stopped and pushed the passers-by, and quickly sorted out the passage of the city gate, allowing more than a dozen knights to gallop out.

……

More than ten miles east along the official road, there is a manor on the left side of the road. The manor covers an area of 100 acres, the forest in the park is forested, the rockery is towering, the small bridge flows water, the pavilion is meandering, two stone lions are erected in front of the gate, a plaque is hung horizontally in the lintel, the plaque is simple and heavy, and the book is two big characters "Jia Yuan".

The owner of Jia Yuan is Jia An, who joined the army of Jin Cao Peng of this county, Jia Mansion is a local surname, and there are many ordinary guests. It's just that in the afternoon today, the gate of the manor is completely closed, and there are more than a dozen officials scattered around the mansion.

Eight horsemen from Pegasus to the gate of Jia Yuan, Wang Senjun nodded slightly, and a knight took out a bronze medal from his arms, and the bronze medal was written: 'Han Ji Prefecture - Wei County Thief Cao'.

The official guarding the door was the Yecheng thief Cao Peng, and when he saw that the person who came was Cao Peng, a well-known thief in the county, he hurriedly respectfully let him out: "The king joins the army, please come inside!" ”

Wang joined the army is the thief Cao Peng, the name Li (1) word Deyu, a person from Liaodong, his father disappeared soon after he was born, and the mother and son depended on each other, because they were embarrassed by the invasion of foreign races in Liaodong every year, and a few years ago they joined relatives with their mother and moved to Wei County.

"Take us to the scene of the murder!" Wang Li nodded, waved his hand at everyone, jumped off the horse first, and walked towards the door.

The road in the garden winds and turns, crosses the long corridor and small bridges, and soon comes to a delicate small courtyard, and the catcher whispers: "Wang Senjun, this is Jia Senjun's study, Jia Senjun's body is inside, after we received the report, we blocked the scene, and everything in the room remained the same." ”

The study is not big, but it looks small. Wang Li pushed the door in, and saw Jia Anwei sitting on a small table, leaning on the desk, pressing a few pages of 'Caihou paper' in one hand, and holding a white wolf hao brush in the other, his face was purple, his eyes were closed, his lips were slightly swollen, there was a faint wisp of saliva on his lips, and a puddle of water stains under his feet.

There were only a few lines of handwriting on the paper, but unfortunately, there were clumps of black ink on the handwriting, and the spots were not clear, it seemed that Jia Anying was writing something, but unfortunately he was poisoned and died before he could finish it. There is a porcelain cup on the desk, and the clear soup in the porcelain cup is like jade, and a few slices of angelica and chicken nuggets float in the soup.

Behind him is a row of bookshelves, on which are placed some wooden tablets and books, messy but not a little dusty, it seems that the owner is extremely cherished, must have been cleaning often. There are several calligraphy and paintings hanging on the walls on both sides, both the handwriting of the famous people of the dynasty and Jia An's own pen and ink.

There is a copper lamp on the right side of the desk, but the copper lamp has long since been extinguished. The study room is only more than ten square meters, and there are no other sundries, if it weren't for Jia An's death here, everything would seem to be in order.

Although Jia An and Wang Liping have not had much contact, they have also eaten and drunk together a few times, after all, one is in charge of the thief Cao Shi, the other is in charge of the Jin Cao Shi, and they are both Wei Jun guards, so how can they not have a relationship. Wang Li sighed and waved his hand, and everyone under his command immediately scattered, looking for relevant clues and personnel in the study and courtyard.

"My lord, we took some chicken soup and checked it before, and found that the chicken soup was poisoned with seven machines." The captor bowed down and prayed.

Seven-card machine?

Seven machines, spring silkworms spit out all their lives, and Mojiao is easy to cut Roy. Cut for no reason, the fairy luan and the colorful phoenix are divided into two clothes.

Seven machines, of course, are not the seven machines in the "Nine Machines" written by Anonymous in the Song Dynasty, which was more than 800 years earlier than the Song Dynasty.

Qizhangji is a poison that is refined from seven kinds of plants, including Manju Sahua, Manjushri, Mai Xian Weng, Acacia Bean and Delphinium. The effect is similar to that of "Nine Machines", the spring silkworm spits silk and dies, and the cloth is cut and destroyed.

"There are seven machines in the body, and my life is in danger."

Wang Li nodded and chuckled, but he was noncommittal, his eyes stared at the bronze lamp tightly and said: "In the blue lips of the face, the whole body is paralyzed and died, and the death of Jia Senjun is consistent." ”

Although the copper lamp has been extinguished, the room is still filled with the fragrance of grease.

"Report! My lord, Jia Senjun has a poison in his throat. According to the humble speculation, Jia Senjun did drink the highly poisonous soup. However, it is still unknown whether it was the soup that caused the death, and the humble position still needs to be carefully examined to the stomach of Jia to join the army. The guard who was crouching beside Jia An straightened up, holding a silver needle in his hand, black and shiny.

"Report! My lord, all the books of the lowly general Jia Senjun have been sorted out, and according to the placement and thickness of the bookshelves and the serial number marks of the books on the shelves, it is inferred that one book may be missing on the shelf. The guard next to the bookshelf rearranged the bookshelf and replied.

"Report! My lord, I have gathered all the cadres of Jiafu in the lobby to wait for the adults to ask! In addition, Zhao Wu and the others found a package of medicine paper in the garden grass outside the study, and the medicine left on the paper was Qizhangji! A guard hurried in at the door.

Wang Li bowed his head and asked the guards who were still busy beside Jia An, "Qian Yi, do you have anything to add?" ”

"I really found out about my humble duties, my lord, please look!" Qian Yi lifted Jia An's placket, Jia An's neck and back had gradually turned blue, and there was a purple dot near the Lingtai acupoint, the size of a needle's eye, "My lord, the Lingtai acupoint is a human weight acupoint, the main governor is the qi of blood and yang heat, and the poisonous needle breaks through the Lingtai, maybe this is the real cause of Jia Jianjun's death." ”

"Inside the spiritual platform and outside the medicine, why do you need to do more? Make matters worse by attempting a coverup! Stretched out his hand and picked it on the oil lamp, but the oil lamp did not move, it turned out that the oil lamp was directly connected to the desk, Wang Li pondered for a long time, waved his hand and shook his head and said: "Jia An is in charge of Wei County Jin Cao has no quarrel with the world, and he is a man with many intelligence, but he is broad and does not know how to be flexible, and it is not for nothing that he died by accident today." His death is not in the altar, not in the poison, but here! ”

After speaking, Wang Li held the oil lamp and flicked it out, the oil lamp trembled slightly, and then turned the oil lamp left and right for half a circle, only to hear the sound of "Zheng Zheng", and a half-foot square box popped up on the wall on the side of the desk.

When the box was opened, everyone hurriedly looked over, and there was only one note left inside, with four big characters written on it: Nine chapters of arithmetic!

Exegesis:

(1) Li, "Warring States Policy • Qin Ce III": The minister heard that Zhou had a bad luck, Song had a knotted green, Liang had a hanging Li, and Chu had a Hepu, these four treasures were lost by the work, and they were famous in the world. and "The Book of Rites": A gentleman is like a jade. Therefore, Wang Li is a deyu.