After Lu Chengfeng ruled out the suspicion of the Seven Peerless Hall in his heart, he felt that this case was full of suspicions:

First of all, where did this strychnine come from?

Secondly, the strange poison is in hand, how did the murderer poison it?

Again, how does the murderer make sure that the whole house can't run away?

Then, why did he disguise himself as the Seven Peerless Hall and hang all thirty-two corpses? It took so much effort to hang so regularly?

Finally, it is the most perplexing question for everyone, how did the murderer escape?

Lu Chengfeng hurriedly found the study, found pen, ink, paper and inkstone, and wanted to record the five doubts in his heart in black and white, so as not to mess up. In this way, all that remains is, one problem at a time, each one is broken.

Before he could put pen to paper, he found that his hands were already frozen! Sure enough, it's a cold day! He looked up at the sky outside the window.

It was getting late, and the night was getting late. In the Jiangfu compound, it has long been covered in silver, which has become the best camouflage for this tragedy.

"You stay, everyone else goes to the courtyard to clear the snow!" Lu Chengfeng commanded.

If you don't sweep away this heavy white garment, how can you see the sin and filth hidden underneath?

With that, Lu Chengfeng rubbed his hands and roasted his frozen palm on the oil lamp.

I don't know if it was because the weather was too cold, his limbs were numb from freezing, and he accidentally knocked over the oil lamp. The lamp oil splashed all the white paper on the case, and the flames quickly burned along the spilled lamp oil! In an instant, the thick stack of white paper on the case was burned to the ground!

said that it was too late, it was too fast, and Lu Chengfeng smashed a pot of flowers on the side shelf into the flames. After a while, a wisp of green smoke rose from under the rubble of the broken flower pot. The swift flames were extinguished by the earth.

It's just that just now, between the flames, Lu Chengfeng seemed to see some strange pattern, which stood out on the ignited white paper, but before he could see it clearly, the paper was burned clean by the fierce fire.

"Did you just see that? That paper! Lu Chengfeng asked the soldiers beside him.

It's a pity that it happened too suddenly, and the soldiers of Nafu obviously haven't come back to their senses yet.

Lu Chengfeng had no choice but to remove the broken flower pots covering it, and then carefully removed the broken flowers, gravel and soil one by one, and carefully observed whether there were any unburned pieces of shredded paper in them. Only some black powder was found, which should be the ashes of the stack of paper after it was burned.

"Look at the bookshelf, in the cupboard, in the box, and in the white paper?" He lifted his spirits and became alert.

"Report to His Royal Highness the Emperor Sun, there is still a stack here!" Sure enough, the soldiers of the government turned out a number of white papers of the same size, texture, and thickness from the cabinet.

Lu Chengfeng took out a sheet casually and put the white paper on the oil lamp to bake. After a few seconds, a blue wavy symbol appeared on the white paper. The two waves overlap but do not meet, like a handful of small blue crosses on the four corners of the paper. In this small fork, there is also a small blue dot, which looks like a small fish that can't close its mouth!

"Your Highness, this seems to be the code of the Cao Gang!" Fu Bing took the paper, looked at it carefully, and said with a twisted eyebrow.

"Cao Gang! So, the Jiang clan is a member of the Cao Gang? The Cao Gang is all over the world, but the foundation is in Jinghua, so what does it have to do with Nanli? Lu Chengfeng felt that the case had become even more confusing, "Come on!" Together, let's search this study again! ”

After rummaging through the cabinets, Lu Chengfeng already knew Jiang's background identity. This old man of the Jiang family, on the surface, trades with the Western Regions, Nanli and other places, and does the business of tea, horses, and salt merchants, but in fact, secretly, what he does is the lack of virtue of digging people's ancestral graves and collecting treasures and ancient artifacts.

No wonder this Jiang family, as a little-known small tea horse salt merchant, can afford to live in such a deep mansion! He also built the wall of that courtyard so high, it must be to hide people's eyes and ears, so that he could do some unsightly things in the house!

And those antique treasures stolen from the grave were traded through the Cao Gang! Presumably, this fish-grained plain paper is the code code for his transaction with the Cao Gang!

Lu Chengfeng carefully checked the account books of Jiangfu, and in the thick account books, the transaction amount recorded reached hundreds of thousands of gold! It's just that the clue will be broken when it arrives at the Cao Gang!

"I've just returned to the Imperial City, and I'm not familiar with everything in this Jinghua City. You tell me, in addition to escorting food, the Cao Gang is also in charge of other affairs? Lu Chengfeng was already frowning at the moment.

"Returning to His Royal Highness the Emperor Sun, in addition to transporting grain, the Cao Gang is also responsible for escorting official salt. I think it's because of this, I got on the line with the Jiang family! The soldier replied seriously.

"Possibly! Let me ask you again, are there any other industries involved? For example, the black market! Lu Chengfeng's sharp eyes looked at the Nafu soldier road steadily.

"Back to His Royal Highness the Emperor Sun, that Cao gang has always been like this, not to mention the black market! In this Jinghua City, as long as it is profitable, they have to stick a lever horizontally! Over the years, they have reaped a lot of benefits by relying on the big tree behind them! Our Jingzhao Yin Mansion can only turn a blind eye, as long as we don't go too far, and don't make trouble in front of the Son of Heaven! ”

The soldiers of Nafu actually fell to their knees, not even daring to raise their heads, and solemnly continued to explain.

"It's not the villain's intention to hide it! The villain is a small soldier, and he really doesn't dare to take the initiative to mention it! It's not a pot that can't be opened! ”

"What do you say? Who is the big tree behind the Cao Gang? Can you let me know? Lu Chengfeng asked eagerly.

"This, the villain doesn't dare to say......" The soldiers not only buried their heads lower in the ground, but also stood up.

"At this time, there are only two people in the house, God knows that you know and I know! You can feel free to talk to me about it. Lu Chengfeng squatted down, lowered his voice, and whispered mysteriously in the ear of the soldier.

"The villain only knows that Ma Rulong, the leader of the Cao Gang, has a close relationship with Tang Boen, the son of the prime minister......" The Nafu soldier said softly and nervously, his eyes kept rolling around, for fear of being overheard.

"You mean, the backers of the Cao Gang are the prime minister and the prince!" Lu Chengfeng was shocked and shouted.

"I, I didn't say it! I didn't say anything! The soldier covered his mouth and ran out of the study in a panic.

Forget it, if you ask again, I guess he won't dare to say anything!

With such a nervous and panicked attitude, Lu Chengfeng was even more sure of the judgment in his heart. Combined with the previous incident of Tian Xianglou, he and Tang Byrne have already fought each other. It seems that the prince and the prime minister manipulated the Cao Gang to make a lot of money and let them do evil, they must be eight or nine!