The old man said that these poisonous insects came from the dense forests of the southeast Y, and their domestication process was very cruel.

First, there will be a peculiarly large female worm that lays countless tiny eggs. The person who made the poisonous insect would deliberately order different girls to drink these eggs, that is, put them into the bodies of different girls. Because each girl's body functions are different, that is, the "host" of each poisonous insect is different, only those girls who can hatch the insect can survive temporarily.

After the insect hatches, it will treat the girl's body as its mother's body and survive by devouring the internal organs. At this time, the person who made the poisonous insects would give the girl all kinds of medicines to inhibit pain and the growth of poisonous insects, and those poisonous insects that could be killed by the medicine they drank were constantly eliminated in the process.

In the end, the surviving poisonous insect will become the strongest one, and it will slowly eat the girl, and then leave the body out of the cocoon. At this time, it is the moment when the poisonous insect turns into a butterfly, and it will change from an ugly insect to a very beautiful poisonous butterfly. Because the process of making this poisonous butterfly is bloody, cruel, and terrifying, it can be called the darkest method in the "Gu" world, so it has been explicitly forbidden by people with conscience in Southeast Y and other places.

However, because the people who make poisonous insects can also continue to benefit from this process, there are always some people who are malicious and have refused to give up this method. The reason is that if the person refining the poisonous butterfly finds the most powerful poisonous insect, the person will extract a small amount of blood from the mother's body without interruption for his daily consumption.

In this way, over time, the smell of blood in the body of the person will become similar to the blood in the mother's body, that is, the girl. That is, it has reached the realm of Gu body unity, and then, the poisonous butterfly that hatches will regard the person as its mother at the first time, and will be very obedient to the person's instructions, and consciously and voluntarily become the person's Gu worm.

In addition to being able to complete the link more smoothly, the blood on the mother's body also has a great benefit for the person who makes the poisonous insect. That is the peculiar effect of this blood, because this poisonous insect will continue to secrete excrement as it grows. It secretes excrement and contains a special substance that is very effective in increasing the body's metabolism.

At the same time, because the mother girls will be forced to drink a large amount of poison, these poisons have special ingredients, when they touch the excrement of poisonous insects, plus the human blood to dilute and fuse, the three will produce a very peculiar substance. This substance is called human gold, which can greatly change the body's functions, so that the appearance and body shape of the eater can reach an extreme state, just like that poisonous butterfly, people will become more and more beautiful.

According to the analysis report provided by Ning Yide, which was also An Zhi's previous speculation, the police looked up many of Qu Wanwan's growth photos and found that her beauty suddenly appeared in the past two years. This is also the reason why no one in the University of Ontario has noticed Qu Wanwan, she used to be not good-looking, and her skin and body shape were not very good.

Of course, the reason for this poisonous butterfly is just the old man's speculation based on the poisonous insects, after all, Qu Wanwan can also say that she has undergone plastic surgery. Unless the police can take her blood for further testing and find that it is unusual. Moreover, it is obviously difficult to compare this ingredient with the blood of poisonous insects.

The poisonous butterfly is extremely poisonous, and if people who don't know how to make insects accidentally touch it, they will not only be in danger of life, but also die extremely miserable. This is also the reason why the men in the villa are silent about Qu Wanwan. Therefore, even if the police were very suspicious of Qu Wanwan, they had no way to directly search for her, until Ning Yi had to find the old man, who was also proficient in insect control.

At the same time, the people sent by the police to the village finally came to the news. They said that the people in the village had basically moved out of the mountains and moved to various towns more than 100 kilometers away because of the rural poverty alleviation and transformation project. It is still very difficult to find the original villagers one by one.

Fortunately, in the original old village, there are still some people who stay behind and refuse to leave, most of them are some old people who are about to enter the earth. These old people all believe in returning to their roots, and they all insist that they will die in their homeland, and it is precisely because of this belief that they still stay in their original villages.

When the police investigator took some different old photos of Qu Wanwan and asked the old people one by one, he really found an insider. The old man was a blacksmith in the village, and he often repaired pots and pans for the villagers in the neighborhood on weekdays, and he knew the situation of every household in the village well.

He said that in the early years, in this village, there was a powerful grass aunt, that is, a person who could make poisonous insects. But this grass girl is very good, not a bad person who can harm people, the insects she trained are used to treat people, and she is very famous in this area, which is equivalent to a witch doctor in the local population.