"Is this phosphorus?" Di Renjie pinched up some powder and observed, some of it was wet, it should have been wet with dew.

Picking up some powder, Di Renjie put the phosphorus powder to dry under the sun, and after the phosphorus powder dried, it actually burned, and stood up in a daze when he looked at the dark blue flame.

In the Ganlu Hall of the Imperial Palace, Li Er was discussing with Fang Xuanling and Cen Wenwen how to appease the people, and was discussing that Wang Qin came to report, "Your Majesty, Dali Temple Shaoqing Di Renjie asks to see." ”

"Di Renjie"

Cen Wenwen said, "Your Majesty, Di Renjie is investigating last night's ghost fire case. ”

"Summoning Di Renjie!" Li Er spoke.

Di Renjie, who had been waiting outside the palace gate, finally waited for Li Er's summons, and came all the way to the outside of the Ganlu Palace, "Minister, Di Renjie greets Your Majesty." ”

"Come in." Li Er stared at Di Renjie, "You have found out"

"Back to Your Majesty, I've found out." Di Renjie took out a small black clay pot from his cuff, "Your Majesty, the things in this clay pot are the so-called ghosts and gods!" ”

Li Er's eyes were gloomy, and Fang Xuanling was also strange.

Di Renjie opened the mouth of the clay pot, poured out the white powder from the mouth of the bottle, and came to a candle flame, "Your Majesty, look at it!" ”

Holding the white powder in his hand, Di Renjie sprinkled it on the candle flame, and as the powder burned, a blue flame appeared, followed by wisps of blue flame floating and falling until it fell and went out.

"Ghost Fire!" Cen Wenwen's eyes widened.

Even Li Er stood up and was short of breath.

"Your Majesty, this is the ghost fire from last night." Di Renjie poured out some phosphorus powder from the clay pot and said, "This was found in Qujiang Pond, and it was also the first place where the ghost fire appeared last night. ”

Li Er sat down again, took a deep breath, and figured it out before and after, "Spread the order!" The head of the Lu family, Lu Tianyuan, and the children of the Lu family will be pardoned or not! ”

Wang Qin bowed and retreated.

Di Renjie also understood in his heart that someone wanted to use public opinion and the taboo in Li Er's heart to protect the head of the Lu family, Li Er quickly cut through the chaos, but doing so just pushed the head of the Lu family to the guillotine, thinking that he wanted to find out who did it.

Outside the academy, Xu Jingzong had a cloth to cover his mouth and nose, "Master Hou, what's the matter, you have to boil this urine." ”

The villagers passing by bypassed one after another, and seven or eight cauldrons were boiling human urine, and the wind stinked for ten miles.

Until the evening, Gu Qing came to the academy late this time, and the urine in a few cauldrons had been boiled dry, and now it is autumn, compared to the dry autumn in midsummer, phosphorus is also very easy to burn, and the ignition point of phosphorus is also very low.

"Master Hou, it's all ready." Xu Jingzong said.

At the moment, when the students of the academy were out of school, Gu Qing picked up a stick and hit it on the boiled cauldron, raised some powder, and suddenly a little blue ghost fire floated away.

"Ghost Fire!" Xu Jingzong screamed in fright.

"You try it too," Gu Qing handed the stick to Xu Jingzong.

"This ......," Xu Jingzong took the stick and hesitated.

"I'm afraid," Gu Qing looked at Xu Jingzong with great interest.

"I'm not afraid!" Xu Jingzong said, a stick also hit the cauldron, and suddenly a little ghost fire came out.

Li Tai took Li Zhizheng out of the academy and saw this scene, Li Zhi looked at the blue flame and said, "Brother Huang, is this a ghost fire?"

Smiling indifferently, Li Tai pulled Li Zhi into the carriage, "Let's go, let's go back." ”

After the Ghost Fire Rebellion in Chang'an, the night in front of the academy was also floating with ghost fires, and the villagers watched one after another, understanding that this was Gu Qing's intention that he was not afraid after he tossed it out, and there was a taste of novelty.

The dark blue ghost fire swirls around the academy, and the flames have no temperature and can't burn anything else, which is very interesting, like fireflies in summer.

A bear child in the village poured a soak of urine and looked at it carefully, and there was a ghost fire in the urine

The movement in Pushan Village naturally disturbed Chang'an, and the people of Chang'an discussed this matter, and it turned out that the ghost fire came out of the urine.

Early that morning, at the end of the court meeting, the head of the Lu family was escorted to the guillotine.

"What do you want to say before you die?" Di Renjie looked at him.

"If you lose, you lose, the biggest mistake that the old man has done in his life is to underestimate Gu Qing's ruthlessness." The head of the Lu family whispered, "Boy, you remember!" Gu Qing will not have a good result, Li Shimin is not a good person! After he finished using Gu Qing, it was when Gu Qing was at the end of his rope! ”

Only Di Renjie's sneer responded to the head of the Lu family, and said loudly: "The head of the Lu family intends to rebel, the evidence is conclusive, the time has come, behead!" ”

The executioner's big knife fell, and along with the head of the head of the Lu family, the Lu family fell!

Li Er went down to the court and listened to Wang Qin's report, "Gu Qing made a ghost fire with human urine"

"That's true." Wang Qin said, "And the rumors of Chang'an have gone down a lot now, and I know that this is how the ghost fire came about." ”

"This Gu Qing is worried about me." Li Er opened his mouth and said, "I also want to go to the academy to have a look." ”

In the academy, reading was loud, Gu Qing and Li Tai, and Fang Zhizhi were playing cards.

"What has this kid been doing lately," Gu Qing played a pair of fives.

Li Tai played a pair of sevens, "I went to the restaurant yesterday, and this kid is now thinking about how to marry that tough woman into the house." ”

"But he can't think of anything to do with that elm pimple." Fang Yi said directly, "I guess I'm going to come to you." ”

"What does it have to do with me?" Gu Qing sorted out the cards in his hand.

"Because you have the most ideas." Fang Yu played straight out a pair of tens.

"Brother Huang, Gu Qing, Brother Fang, my father is here!" Li Zhi ran in a panic.

Li Er had already walked to the door, walked all the way to the door and looked at a table of cards, and then looked at the three teenagers, "You all go out, I have something to say to Gu Qing." ”

After everyone left, Li Er looked at Gu Qing, "You helped Di Renjie solve the case of Ghost Fire." ”

Gu Qing nodded.

"What do you think about this?" Li Er sat down and looked at a table of cards with irritated eyes.

"The other party instigated the people, but he actually wanted to protect the head of the Lu family." Gu Qing said as he cleaned up the cards on the table, "Now that the matter of the ghost fire is in the past, some suspicions still can't be erased, if Your Majesty wants to let the affairs of the Lu family pass smoothly, you need fierce medicine right now, so that the people's attention can be completely attracted to the past." ”

"What kind of medicine are you talking about?" Li Er stared at Gu Qing.

"Your Majesty, the imperial examination can be opened." Gu Qing said in a low voice, "Now is the best time to open the imperial examination, as long as the imperial examination can shake all the people of the Tang Dynasty, it can easily cover the affairs of the Lu family, and in the next few months or even years, the affairs of the Lu family are just a little mottled in the years, and the memories of the people are just the family's fall, the imperial examination is open, and the students from the poor family should also stand up." ”