Qin Feng took a deep breath. It seemed that there was more than one person following him. This man wanted to say who the mastermind was before being silenced. It seemed that this group of people were organized.

After hiding behind the pillar for a while, Qin Feng slowly poked his head out and carefully observed the roof on the other side. After confirming that the person had left, he walked out from behind the pillar.

Since the arrow had pierced the man's entire head, not much blood came out, but his widened eyes were enough to make people stop in their tracks.

Qin Feng had to use a lot of effort to pull out the two arrows that were inserted into the wooden pillar. The arrowhead had already completely sunk into the wood, and the arrowhead was hooked back, making it difficult to pull it out.

Pulling out an arrow, Qin Feng quickly left the place. If someone found out that she had registered with the officials, then it would be troublesome.

After all, he had already delayed for quite a few hours, and the Fifth Prince's body could not afford to delay any longer. The longer the poison stayed in his body, the longer it was likely that it would leave behind side effects.

After brewing the soup, Qin Feng brought it to Fifth Prince's room. Fourth Prince and Fifth Prince were currently chatting, and when they saw Qin Feng come in with a bowl of soup, they knew that the antidote had already been brewed successfully.

"Why did it take so long for the antidote to be refined?" Fourth Prince had been muttering all this while, afraid that something would happen to Qin Feng.

Qin Feng brought the antidote to Fourth Prince and said: "First, feed this medicine to Fifth Prince and drink it. This medicine needs to be consumed continuously for seven days.

Fourth Prince took the soup. He had wanted to give it to Fifth Prince to drink, but Fifth Prince received him and said, "Fourth Brother, I'm not a child. I can drink by myself."

Fifth Prince did not mind the heat and finished the soup in one gulp. In the end, although he had finished drinking the medicine, Fifth Prince still coughed bitterly, and tears were about to flow from his eyes.

"This medicine is really bitter!" The Fifth Prince sighed.

Qin Feng packed up the medicine bowls, and laughed: "That's for sure, good medicine will taste good. How fragrant is the poison you're infected with, then, this antidote will taste bad. Fortunately, if you were to drink it all in one go, you would definitely not be able to do so. "

"Yufeng thanks Fourth Sister. I am unable to repay the favor of saving my life!" Fifth Prince cupped his fists and said.

Qin Feng waved her sleeves, and smiled indifferently: "How can I return the favor? If I encounter any problems in the future, I'll just do my best to help."

"Of course, as long as Fourth Sister commands, we will not hesitate to sacrifice ourselves!" Fifth Prince acted as if he was swearing an oath.

"Not yet. You have to protect your own body. It's not in vain that I tried to find a way for you to cure yourself." Qin Feng didn't like sacrificing someone in order to save another person. Life was always the same, and when one's life truly ought to be like this, one had to calmly face everything.

After saying a few more words, Qin Feng allowed the Fifth Prince to sleep a little more.

Qin Feng followed Fourth Prince to his room, and Qin Feng took out the crossbow arrow hidden on her body and placed it on the table.

Looking at it, Fourth Prince knew that Qin Feng must have met with trouble the reason why she came back late. However, since Qin Feng was safe and sound, she could rest assured.

"Earlier, when I went to get the medicine, I caught someone following me. Just as I was about to ask who was behind this, he was killed by someone using this crossbow arrow." Qin Feng said casually, as if this kind of thing was extremely normal.

The Fourth Prince also knew that Qin Feng had omitted her dangerous experience. Fortunately she wasn't hurt, and if anything were to happen to her, she would definitely regret it.

Fourth Prince looked at Qin Feng, her heart suddenly throbbing. Even though she was already married to Qin Feng, they were only husband and wife, and not husband and wife.

When he had initially decided to marry Qin Feng, it was completely a moment of impulse. As a prince, all the young girls in the world had rushed to his side, and he had only met her that was neither cold nor hot, and even spoke rudely to him. This made him feel very new.

But now that he knew that Qin Feng's life was almost in danger, he felt a lingering fear. Right now, he had the impulse to embrace Qin Feng in her arms and tell her that with him here, no one could touch her.

Qin Feng didn't know what Fourth Prince was thinking at the moment, but seeing Fourth Prince looking at him with such an "affectionate" look made him want to hit him.

"Fourth Prince, can you not look at me like that?" Qin Feng coughed and reminded her.

Fourth Prince laughed a little awkwardly, then reverted back to his playful smile: "Hey, why did you forget again? When you were at your own residence, you wanted to call me Zhi Ling."

Qin Feng nodded his head helplessly, and shouted "Zhi Ling", causing Fourth Prince to be unable to leave it at that.

"You're saying that there are spies placed around the Prince's Mansion. As long as you travel, there will definitely be people following you?" Fourth Prince said as he carefully examined the crossbow.

Qin Feng nodded, and said: "I think it's about this, but we don't really understand the specifics, so we need to be prepared to deal with the various situations. Furthermore, the most urgent matter at hand is to find the culprit who drugged Fifth Prince. As long as we summon him out and bring him to justice, these spies will naturally leave. "

"But right now, there are no clues, the owner of the shop, Zhou Yixue, has also been killed, the spy following you has also been killed, almost all the clues have been destroyed."

Qin Feng pondered, who exactly was the mastermind behind this, with such a large sum, her identity must be extraordinary. Qin Feng's biggest suspect was the Second Prince. He was two-faced and cunning. Right now, the emperor was still healthy and on the throne, so he couldn't wait to murder his fourth brother. It wouldn't be surprising if he wanted the life of the Fifth Prince.

"You can start from the boss who sells incense. According to what you said, Zhou Yixue committed suicide, but there is no reason for him to commit suicide. Based on what happened now, the possibility of suicide can already be ruled out." Qin Feng said.

Fourth Prince also didn't believe that Zhou Yixue committed suicide, but the injuries on his body was actually very beneficial.

"But, at that time I had examined Zhou Yixue's body, there were only the scars on his neck from top to bottom, and there were no other injuries. The coroner has also confirmed that he is hanged. If someone forced him to hang himself, it means that there were signs of a fight. However, nothing happened. "

"The more there is nothing, the more suspicious it is. Usually, this kind of 'perfection' is not perfect in itself. As long as this seemingly normal veil is removed, then everything can be easily solved." Qin Feng thought about his previous life's work, which was what her master had told him. For all these years, she had never forgotten about it.

Fourth Prince raised his eyebrows. Suddenly, he felt that the temperament of Qin Feng, who was in front of him, had changed. Moreover, this was clearly a very troublesome matter.

"Uh, okay. So what exactly are we going to do? Now, we have no other clues other than this crossbow arrow. "

The Fourth Prince shrugged and said.

"Nowadays, wooden products are basically all manufactured by hand, so basically every product should be different, and the craftsmen basically have their own style. Look at this crossbow, it doesn't look like a normal flat-headed bow. This is a four-edged arrow, and the arrow is covered in a layer of iron, which makes the crossbow even more powerful. There are so many 'features' that I think someone will know where this particular arrow came from. " Qin Feng picked up the crossbow and analyzed it for the Fourth Prince.

Fourth Prince took the crossbows from Qin Feng's hands. He had seen all of these points himself, but it did not seem to be anything strange to him, because many of the arrows were not the same. Furthermore, there were so many weapons manufacturing shops in Xuanyuan City, so it was extremely difficult to find a creator for them.

Qin Feng knew what the Fourth Prince was thinking, so without waiting for him to ask, she replied, "You can pay a visit to Xuanyuan City's few masters with the best skills. I think that the other party is extremely rich and powerful, and they would definitely find the best craftsmen for these weapons."

"Madam is truly extremely intelligent. Your husband is very surprised." How could it not be surprising? In the eyes of the Fourth Prince, Qin Feng was becoming more and more mysterious.

When Qin Feng heard the Fourth Prince's words, she chuckled. "You can only say that you're stupid, but you couldn't even think of such a simple question."

The Fourth Prince did not mind Qin Feng's retort and continued, "Alright, then I will go to the various weapon manufacturing shops tomorrow to take a look and try my best to find the source of this arrow as soon as possible. Then, I will follow the vines and grope the melon, and capture the mastermind!"

"Sure, but I suggest you not to go alone. You'd better bring some guards." Qin Feng said casually.

Fourth Prince laughed out loud and said: "Madam is still worried about me, but don't worry Madam, your martial arts are still quite good."

Qin Feng rolled her eyes at Fourth Prince: "It's hard to fight with two fists, besides, you can protect yourself, but if those people killed all the other spies like you did today, would you have enough time to protect him?"

Hearing this, Fourth Prince felt that it made some sense, so he nodded and promised Qin Feng to bring some people from the yamen over tomorrow.

"Oh, there is one more thing. I believe that with your ability, you will definitely be able to do it. And as soon as possible!" Qin Feng walked over to a table and drank her saliva and said.

Fourth Prince raised his hand and said: "As long as I can do it, I will do my best! So what do you want me to do? "

"I need you to bring me to see Zhou Yixue's corpse. As long as I go and examine it, I will know whether he committed suicide or if his mouth was destroyed by his own people for some reason.

Fourth Prince looked at Qin Feng with her eyes wide opened. Although he knew that Qin Feng was extremely mysterious, she never thought that she was really capable in everything, such a woman, was she really a young miss that had lived in her room for a long time?