Li Xiuran's face was also a little solemn, and she frowned and said, "The material of the array base seems to be not an ordinary product. Is there anything special about it?"

“Of course there is.”

Chi Qingwan nodded and said, "The formation base must carry the formation, not everything is fine. It has high requirements for materials, and different materials will also affect the power of the formation.

Moreover, to engrave the base of the array, in addition to the cornerstone, it also needs to be matched with other materials, and there are requirements for the material.

If I read it correctly, the foundation stone used in the array base just now should be the white star stone, and the array pattern engraved on it, the materials I can see are purple gold sand, mutton fat jade and mica, which are not ordinary minerals.”

Lin Fengkai's eyes lit up: "These things are forbidden items and cannot be bought in general places. Only shops that get mines can be sold. Perhaps we can start from this aspect and dig out the murderer."

Li Xiuran nodded. This was indeed a clue. These minerals were forbidden items. The murderer could only buy them from shops licensed by the imperial court. These shops were registered, so it was not difficult to check them.

Moreover, the hinterland of Kyoto is very strict, and there are so many formations, so there are quite a few materials that need to be used. If you are buying it from other places, it is not easy to transport it in through checkpoints along the way. Therefore, the murderer is likely to buy materials near the capital, and the scope of the shop can also be reduced to the capital area accordingly...

Um?

Mining?!

Just as he was thinking, Li Xiuran's heart suddenly thundered, as if a thunder thunder had passed through his mind, and instantly remembered Zhao Kang and Zhao, the official who had been destroyed by Xiu'e in Gaoling County.

Didn’t he have mines?

Could the murderer have purchased the ore from him?

If so, then there might be something else behind his death!

He had always thought that he had killed Xiu'e's family because he harmed Xiu'e's family. However, if the murderer was probably the minerals purchased from him, his death could not be ruled out that the murderer deliberately destroyed the family!

That Xiu'e... A guess suddenly flashed through Li Xiuran's heart.

Xiang Kun nodded and said, "Young Master Lin is right. The white star stone, purple gold sand and other minerals can only be bought in shops with mines. If you want to find the murderer, you only need to go to these shops to check..."

"No need to check, just go to the Demon Suppression Department." Li Xiuran suddenly interrupted him, and then without waiting for a few people to speak, he turned over and galloped away.

Um?

Yang Wenxin, Lin Fengkai and others were stunned at the same time.

"Did you think of something again?" Chi Qingwan shouted urgently from behind, then rode on a horse and hurriedly chased after him.

Yang Wenxin and Lin Fengkai also hurriedly followed.

Xiang Kun stood there with a look of embarrassment. He was interrupted before he could finish his words. He did not care about the face of his boss, his boss. This kid really treated him as a fight!

...

Demon Suppression.

Li Xiuran drove his horse and rushed back to Sili, heading straight to the prison.

"After ordering the case, open the prison door." Before coming to the prison, Li Xiuran showed the gold medal directly to the guard.

The guard did not dare to neglect and hurriedly opened the prison door.

"A few days ago, a female prisoner named Shen Xiu'e was imprisoned. Where is she now?" Li Xiuran put away the gold medal and asked at the same time.

The guard thought about it briefly and said, "In the prison area of...C, I'll take you there."

Li Xiuran nodded, followed the guard into the prison, found the prison area of ​​No. C, and stopped in front of a cell.

"It's here." The guard turned around and said, then stepped forward and opened the prison door.

The demon-suppressing prison are all demons with cultivation. Each cell is made of specially made metal. The heavy iron gate makes a muffled sound, revealing the cell behind it.

A beautiful figure was sitting cross-legged with his knees, closing his eyes to practice, and was awakened by the sound. When he opened his eyes and saw Li Xiuran outside the door, a hint of joy flashed across his face, and he quickly stood up and said, "Sir, why are you here?"

Li Xiuran walked into the prison door and looked at her and said, "Something I want to ask you, I hope you can answer seriously and don't hide it."

Xiu'e said: "Sir, you ask, as long as I know, I will reply truthfully."

Li Xiuran looked at her tightly and said seriously: "Where did you get your cultivation method? But someone has taught you?"

Xiu'e was stunned, and then a hint of embarrassment flashed in her eyes. After struggling for a moment, her eyes changed to firmness, and she half admitted and half curious, "How did you know?"

Sure enough, someone taught me!

Li Xiuran's heart suddenly jumped, and all the doubts in his heart suddenly became clear after the guesses just now.

He has always overlooked one thing before. Although there are spiritual cultivation, ghost cultivation, demon cultivation, demon cultivation, demon cultivation and other ways of practice in this world, whether it is spiritual cultivation, ghost cultivation, demon cultivation or demon cultivation, they all follow one rule, that is, all cultivation must be obtained through one's own efforts and cannot be obtained out of thin air.

Otherwise, as long as you die, you will become stronger, then who will work hard to practice and just die.

Xiu'e was originally just an ordinary woman, but after her death, she suddenly became the peak of the Dan Realm and almost broke through to the Shenzang Realm. It was obviously unreasonable.

If you want to do this, there must be someone behind the scenes!

And the person who taught her was probably the murderer!

At least it has nothing to do with him.

First, he purchased the mineral materials for making the formation from Zhao Kang. Then, in order to avoid leaking news, he directly used Xiu'e to silence him. Finally, he used the Demon Suppressing Department's hand to remove Xiu'e and completely smooth the traces.

I have to say that the plan is perfect!

Even the experience of Xiu'e's family may be caused by the murderer.

It’s just a pity that he was the one who sent the Demon Suppression Department to carry out the mission. Not only did he not get rid of Xiu'e, he also found out the hidden truth behind her destroying Zhao Kang's family, and finally directly exposed the case to the imperial court.

This is also the real reason why Xiu'e was attacked in the jail of the Demon Suppression Department last time!

At that time, he thought it was Sun Pei, or Peng Ce, the people from Guan Chenghe, who came to kill Xiu'e to silence him.

Now it seems that the person who really wants to kill her should be the murderer!

What I was afraid of was that Xiu'e leaked his existence during the interrogation process, which then aroused the suspicion of the emperor or the three officials. Finally, she continued to investigate and dig out the truth behind it, thus disrupting their plans!

Chi Qingwan and Yang Wenxin, Lin Fengkai also rushed over. Before he could take a breath, he heard Li Xiuran’s question and Xiu’e’s reply. Then the three of them were stunned by lightning, and at the same time, they were stunned on the spot, obviously also figured out the key.

Chi Qingwan first reacted, stepped forward, grabbed Xiu'e, and said excitedly: "What did you say? Is your method of practice taught by someone? Why didn't you say it before?"

Xiu'e said innocently: "You didn't ask, and the person who taught me also told me not to tell anyone about his existence.
Chapter completed!