"You don't have to be modest, there are not many geniuses in this sect, if you want to get a glimpse of the skin of the 'Biyun Trail', you will have nothing to gain in your life. If you can cultivate successfully, it means that your talent is much stronger than others. ”

Elder Wu was also impressed by Qin Fengming's performance, and he did not hesitate to praise him in his words.

"The old man is here because of a happy event to tell you, the little things you asked the old man to build have all been completed, and this time I specially sent them to you. ”

"Ah, really, thanks to Elder Wu" Hearing this, Qin Fengming immediately bowed happily.

Taking the cloth bag handed over by Elder Wu, Qin Fengming looked very excited. After Elder Wu left, he returned to the room and immediately poured the contents of the cloth bag on the bed and examined them carefully.

According to the drawings in the "Detailed Explanation of the Machine", the small parts were sorted out one by one, compared with the paper they had drawn, and compared them one by one, and found that the parts made were no different from the requirements on the drawings regardless of size and size, and immediately put their minds at ease.

The "Detailed Explanation of the Machine" has been sent back to Mochizuki Peak, and with the help of memory, all the parts have begun to be slowly assembled.

More than half an hour later, a small dark box appeared in front of Qin Fengming, only to see that the whole box was only the size of a young man's palm.

There are five small holes the size of soybean grains on the front cover of the small box, and two small ear holes on the left and right sides, which are used for rope fixation. There is a small hole on the left side of the small box, which is used to trigger the bracket in the box, and the bracket is connected with a thin wire to lead out of the box through the small hole.

If you pull the thin wire a little harder, the shogun attached to the silk thread will be triggered, and you can hit the haode nails installed in the box, injuring the enemy.

He carefully tied the haode thread he had prepared to the bracket, then took out the heart pin, carefully placed it in the groove in the box, and carefully closed the lid.

Then, carefully pick up the small box, aim the small hole on the opposite bamboo wall, pull the thin line with the right hand, only to hear a crisp sound of "quack", the five cold flashes in front of you, and the opposite bamboo and wood wall makes a "beep" sound, and suddenly, there are five small holes on it that are crossed.

Seeing this, Qin Fengming immediately stepped forward and stroked the five small holes with his hand, his heart full of joy.

The power of this 'cold star' is so huge, it is as hard as a bamboo and wood wall, it can be penetrated with one blow, if it hits a person, it will definitely enter the body, even if it is a martial arts master who has practiced alchemy, it is inevitable to suffer some flesh wounds.

Finding a few thin ropes, Qin Fengming fixed the "Cold Star" on his chest according to the introduction in "Detailed Explanation of the Machine Bracket", and tied the thin wire connecting the machine bracket to his left arm.

After repeated experiments, the length of the thin thread and its position on the left arm were constantly adjusted, and after more than half an hour of practice, the position of the silk thread was finally adjusted.

After fixing the 'Cold Star', he used several days and hundreds of experiments to finally control the 'Cold Star' as he wanted.

But Qin Fengming knew very well that although the power of the cold star was not small, the size of the hidden weapon was too small to kill the opponent with one blow, and only by applying poison to it could it have its due effect.

So, I found Elder Wu again. He was amazed. Curiously asked, "I don't know if there is anything else I need to do when I am looking for the old man this time?"

Qin Fengming smiled and said respectfully: "The disciple is looking for Elder Wu to find a poison that can poison the middle person immediately and lose the ability to resist, but it will not kill him immediately. I wonder if there is such a drug?"

As soon as Elder Wu heard this, he immediately understood that he wanted to apply poison to the hidden weapon. Thinking about it, Qin Fengming's approach is also very correct, the hidden weapon that he helped to make is so small in size, even if it hits the opponent accurately, it will not hurt much, and the hidden weapon can be fed with poison in order to kill with one hit.

Elder Wu thought for a moment and said to Qin Fengming: "There are a lot of highly poisonous poisons in this sect, but if you want to make people lose their ability to resist, there are still not many such poisons. ”

"However, there is a drug called Ma Shen San, which can make the person immediately soft and lose his ability to move as long as it enters the human body and sticks with the blood. But this kind of drug has a very short time of effect, and the middle one does not need an antidote, if it is a martial arts master, it only takes a moment to return to normal, and if you encounter a person with advanced skills, it only takes one or two breaths to dissolve, so it is rarely used. ”

Listening to Elder Wu's narration, Ma Shensan is a drug, although it can be cracked quickly when it encounters a martial arts master. But with the swiftness of Biyun Trace, he can rush to the poisoned person in the blink of an eye, restraining or killing the other party.

So he immediately said: "It's this kind of medicine that poisons people, but doesn't kill people, I don't know if Elder Wu can help get it?"

"Ma Shensan is a medicine, and the master of this sect can prepare it, and the old man will go to him, it shouldn't be a big problem. After two days, you will be able to hand over the configuration haode Ma Shen San. ”

Two days later, at noon, Qin Fengming received Elder Wu's preparation of haode Ma Shen San. Elder Wu told him how to use it and turned to leave.

Qin Fengming found some water, took out a certain amount of Ma Shen San and mixed it into the clear water, stirred it well with a wooden stick, and then soaked all the heart nails in the clear water mixed with Ma Shen San.

After soaking for an hour, Qin Fengming used chopsticks to take out the heart nails one by one, dry them, and then put them into the skin. He carefully put the five heart nails into the "cold star" and walked impatiently into the depths of the mountain forest.

The body quickly shuttled in the mountains and forests, and soon found a mountain hare, aimed the "cold star" at the mountain hare, shook the wrist slightly, pulled the machine bracket with the left arm, and accurately hit the mountain hare with a heart nail.

The mountain rabbit immediately rolled over and fell to the ground, only to see that the mountain rabbit was soft and soft, as if it had no bones, and its eyes flashed with fear.

Qin Fengming stood quietly aside, carefully observing the changes of the mountain rabbit, and after a full meal time, the mountain rabbit turned over and stumbled into the stone pile next to it.