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When signing the contract, Hu Kai also put forward some additional conditions, requiring that during his investigation, he hoped that the relevant departments of the Great Rock Country would cooperate vigorously!

It is a matter of the interests of his own country, and the fat king naturally agrees. However, in order to prevent Hu Kai from taking the opportunity to escape, she also took a lot www.biquge.info of precautions, first put Princess Zhu Na and others under house arrest, and then sent a team of strong guards to personally supervise Hu Kai's every move.

After the contract was signed, Hu Kai's hanging heart relaxed a little. If he hadn't come up with such an expedient measure, I'm afraid he would have been recruited into the harem by the lustful Queen of Big Rock Country and trained many times!

If the king is a stunning beauty like Katyusha, then no matter how many times he is trained, Hu Kai can enjoy it! But in the face of such a round ball of meat, Hu Kai didn't feel anything except nausea.

King Fat can be regarded as keeping her promise, and after signing the contract, she no longer has the intention of forcing Hu Kai, and at the same time, she also ordered that no one should disturb Hu Kai. If anyone dared to harass him rashly, the king would be punished as a national crime, so although the soldiers guarding Hu Kai did not leave an inch, no one dared to embarrass him anymore.

In general, although the people of Big Rock are savage, they still keep their promises. That night, Hu Kai was arranged in an elegant place in the palace, and he received the highest standard of courtesy for food and accommodation.

However, Hu Kai knew in his heart that he was only forced to make a deal with the king of the Great Rock Country this time, and he was not completely sure that he would be able to succeed. Although the other party did not make a request for time, the ship did not wait for anyone, Hu Kai did not dare to delay any longer, and immediately arranged an order to launch an investigation overnight.

First of all, Hu Kai found all the heads and brains of Dayanguo who had been studying fertility problems all these years, and asked them about their investigation experience over the years to see if there was anything worth noting.

Secondly, he also ordered someone to find a local official in charge of human geography, and wanted to learn from them about the human landform of the Great Rock Country, and see if there would be any problems in it.

In the end, he even found a lot of women on the spot, and wanted to give them gynecological examinations, wanting to see if there was really anything abnormal in their bodies?

The first two items are okay and can be solved by just using research and discussions, but as for the last one, it seems a bit different.

It turned out that Hu Kaizeng's first girlfriend was a gynecologist. During the two years of communication, Hu Kai was exposed to the working methods of some gynecologists, so that he could know a little about fertility problems.

After a whole day and a night of investigation and consultation, Hu Kai finally found the general direction of solving the problem.

Hu Kai examined women of all ages in the Great Rock Country, and now their gynecological diseases are indeed more serious, and the incidence rate is extremely high, no matter what age, as long as it is a woman, there are different degrees of this aspect of the disease.

From this point of view, the fertility crisis in Big Rock Country is indeed from these women! In other words, Hu Kai's previous speculation is likely to be correct, and these women were either exposed to drugs containing anti-pregnancy ingredients from food and water, or from air or cosmetics, which caused them to be unable to get pregnant.

Through the consultation of those humanities experts, Hu Kai also learned that the food sources of the Great Rock Country come from different places, the main seafood near the sea, and the inner 6 areas are mostly cattle and sheep, as for vegetables and fruits, the planting and production areas across the country are different, that is to say, the possibility of infection from the food channel is not large, and it can be basically ruled out.

As for cosmetics, it is even more impossible, Oiwakuni does not have the ability to produce cosmetics, and they are basically purchased from overseas, and the sources of purchase are also all over different countries, so it is impossible to get infected from this channel.

As things stand, air and water are the only sources most likely to be polluted. And after some investigation, Hu Kai also passed the air column.

Because, if it is airborne, I am afraid that there will be a fertility crisis on the entire Angry Sea Sand! And the neighboring Penghai country is safe, which is enough to show that there should be no problem with the air.

Besides, if it spreads by air, there must be a source, and it can't be blown by a gust of wind for more than 1o years, right?

So, after draining the above three ways, Hu Kai finally shifted the focus of his investigation to the water source.

Nuhai Sand is a vast desert, and water is undoubtedly the most important and indispensable for desert residents.

It is reported that the major cities in the territory of Oiwa Province are basically formed by two rivers. These two rivers originate in the heart of the Nuhai Sands and run from west to east across the entire territory of the Great Rock Country, before finally flowing into the Nuhai Sea.

However, the flow of water from these two rivers is not large, and there is no water in the part of the desert on the way, but flows through the underground river beneath the desert.

In other places where there are no rivers flowing through, most of the inhabitants rely on groundwater for their drinking water.

Hu Kai carefully observed the topographic map of the Great Rock Country, although the water flow of the two rivers is not large, but the flow area is not small, and the two rivers have countless tributaries running in different directions, covering almost the entire territory of the Great Rock Country.

Therefore, he has the feeling that even if some places eat groundwater, eighty percent of the groundwater there comes from these two rivers!

Assuming that there is really a problem with the water of these two rivers, it will be enough to affect the entire settlement of Oiwakuni and affect all the women!

Perhaps, this is the crux of what they are looking for!

In this way, Hu Kai's thinking is clear. If it is true that there is a problem with the water source, then the first priority is to find the source of these two rivers and see what is going on there.

Who knows, after investigating in this direction, Hu Kai soon got a more exciting news. A local official told Hu Kai that there was a record in the ancient books of the Great Rock Kingdom that the two mother rivers that flowed through their land were actually the same river, and they both originated in the same place!

It can also be seen from the map that the further you go upstream of the river, the closer the two rivers meet. If the two rivers really come from the same source, then this source is more likely to be the cause!

There must be something wrong there that will pollute the river and prevent the woman from conceiving a child!

However, when Hu Kai asked them about the specific location of the source of the river, the relevant experts of the Great Rock Country all lowered their heads, and even worse, their faces changed on the spot, and even their bodies trembled! 8