The time came the next day, and before Li Chengfeng started investigating, Qi Yu, Yunzhou Prefecture, found them.
"Eight princes, it's not good. Yesterday, the officers and soldiers of the city defense army were attacked!" Qi Yu said anxiously.
Li Chengfeng was making tea in the room at this time. When he heard Qi Yu's words, he quickly put down the tea cup in his hand.
"Take me to see the place where the crime is!" Li Chengfeng said.
Soon, Li Chengfeng took a lot of people under the leadership of Qi Yu and rushed to the south of the city.
After being introduced by Qi Yu on the road, he learned that the real situation of the attacker.
It turned out that the attacked person was a school captain of the City Defense Force. It was responsible for the defense of the Chengnan Gate of Yunzhou.
There were some cultural officials who had been assassinated before. I did not expect that the Bailian religion started with the defense army.
And this time the assassination was really weird, the captain died in his room.
The other soldiers at the door did not find any suspicious traces.
The killer appeared in the school captain's room out of thin air. After killing people, he disappeared out of thin air.
Qi Yu has already understood that there is no dense room compartment in the room of the entire case. Is it possible that the other party is a fairy?
After listening to the entire matter, Li Chengfeng had some speculation in his heart, and he couldn't help but speed up the pace.
After a quarter of an hour, a group of talents fell to the house of the incident.
Among the mansion in the backyard, there is a dry well and a line of guarding at the door of the room.
The subordinates in the house have long been dispersed to the front yard, and there are no idle people in the backyard.
Li Chengfeng and Qi Yu walked into the room.
There is a burning incense burner on the low table in the room.
There are still residues in the Fanxiang in the room, which shows that the room in the room was in a relatively closed space.
But how did the killer come? Li Chengfeng was confused.
Seeing his eyebrows and thinking tightly, Qi Yu on the side made his opinion.
"Eight princes, I don't know if I can help you here!" Qi Yu said.
First of all, Qi Yu carefully checked the wound of the corpse. From the wound, it should be died with Pu Dao through a knife.
To achieve such a wound, or if the deceased trusted the murderer very much, or the attack was caused to death.
Otherwise, the school captain of the defense army cannot have no resistance.
There is no secret room in the room, so this is likely to be hidden in the room early in the morning.
When the captain came back, he killed it with one hit.
"It's just a villain who can't understand how the killer ran away in the eyes of the public!" Qi Yu said with a sigh.
Many officials have been assassinated these days, and Turks are attacking the Great Wall. He is also anxious.
And Li Chengfeng ignored Qi Yu's words. At this time, he seemed to find that the baby was lying on the ground and looked at some of the broken mud under the low table.
These mud is different from the yellow mud on the road, showing black, and there are only a handful of places near the corpse.
"Eight princes? Are you?" Qi Yu couldn't touch it.
Li Chengfeng said more, standing up to move the body aside, waved his hand to let the seven kills outside the door come in.
"Move the corpse and table and pry open the ground under the table. There must be a problem here!" Li Chengfeng said.
After speaking, he came to Qi Yu, and saw Qi Yu's face full of doubts.
"Eight princes, I have checked all these, all of which are solid, and the assassin cannot come out of the ground at all!" Qi Yu scratched his head and said.
Li Chengfeng took out the fan around the waist slightly, and explained the whole thing.
It turned out that when Qi Yu saw his opinion just now, he accidentally saw the black mud at the corner of the table.
He instantly understood why the killer was silent under the layer of guarding, and he repeatedly assassinated in the city but did not have a little clues.
Just because Bai Lian taught them to control a secret tunnel, the killer came out of the secret road to hide, and after killing people, they evacuated in Youyao.
This kind of black mud appears only in the cold and humid underground, which also proves that Li Chengfeng thinks.
After listening to the explanation of Xu Yu, Xu Yu understood it. If it was authentic, he was completely wrong.
And this kind of tunnel that can tolerate one person is difficult to detect.
"The subordinates are out of duty! Also invite the eight princes to punish it!" Xu Yu said with one knee.
In any case, as the first person to come to the scene of the crime, he did not find that this was a negligence.
Li Chengfeng stretched forward, holding him up, and said, "This incident is not wrong. If I didn't find those mud, I couldn't even think of it."
At this time, a seven -killer who was searching came over.
"Eight princes, we found that there is a problem with the bluestone slab under the wooden board! Do you dig it directly?" The man said.
Li Chengfeng nodded, took Xu Yu out of the room, and the Seven Kills stayed in the room to continue digging.
After a quarter of an hour, the seven -killed people came to report again. Indeed, as Li Chengfeng wanted to find authentic tunnel under the room.
There was a smile on Li Chengfeng's face, and Bai Lianjiao finally caught his tail by him, and then he touched the vine.
He followed the Seven Killer to the room again. At this time, the wooden floor of the room had been dug into a small piece.
A large green slate under the wooden floor was removed, and a dark tunnel was exposed under the bluestone slab.
Several seven killers have entered the dense trail in the bluestone slab in advance, and the fire flashing under the bluestone slab.
Without hesitation, Li Chengfeng jumped into the secret road.
Slowly landing, Li Chengfeng was able to see the full picture of the authentic.
In addition to some deposited sludge at the entrance here, the entire tunnel is wide and simple, like a ground palace.
In his estimation, there are fewer five or six hundred people in this tunnel.
After Li Chengfeng entered the tunnel, Xu Yu also followed him. Seeing that he seemed to think about this tunnel, he bowed his head and groaned.
Seeing him like this, Li Chengfeng also knew what Xu Yu might have discovered.
"Master Xu, what did you find?" He asked sideways.
Xu Yu nodded heavily: "I remembered, this tunnel was used for flood discharge, as well as the use of Tibetan troops."
"I have lived in this Yunzhou City since I was a child, but this tunnel has not been used for too long, and I have forgotten it."
"I only remembered the bluestone slab in this tunnel. When I was a kid, my father and I mentioned the matter! There is no other place in the whole city that will use this specifications of the slate!"
Hearing this sentence, the smile on Li Chengfeng's face became more brilliant.
"In this case, our soldiers are divided into two roads, I will investigate the secret. I will leave the mark waiting for you to come."
"You go back and search for the drawing drawings. I don't believe no one knows!" Li Chengfeng said with a light shook fan.
Chapter completed!