The first thing that comes to mind is the best way.

However, the species they chose was not earthworms, which were not the fastest, and often burrowed into the soil, which was not very useful in terms of its character.

But what kind of insects or animals they want to use, they can't just think about it, they have to find animals nearby, and bring them to everyone for consideration, of course, they can also do experiments without referring to everyone's opinions, and they can know the results.

Of course, most insects have one or two shortcomings, or they are not used at all, like earthworms, she simply burrows directly into the soil, and is completely unwilling to be thrown around in the hollow, but it is useless for them to catch bees, because bees will always fly around in space, and they are not willing to store directly underground, and even some people do not look for animals, but for stones.

The problem is that the cave below does not go straight to the bottom at first glance, but twists and turns, and the stone that Qian Rujun dropped before it has been twisted several times, and he can no longer hear the sound, but the reason why he can't hear the sound may be that he is down to the bottom, or it may be that he no longer has the motivation to continue moving.

So what are you going to throw down?

"We've tried earthworms, stones, and bees, but we can't seem to get to the bottom?"

"We have to find something that will keep going down, and this thing can't run into the soil yet, but living in nature is inherently friendly to the soil, and even if it doesn't get into the soil, it will get into the hole in the soil, and it seems that it is not feasible to use the things of nature. ”

"But we've been looking around for all sorts of things, and we still haven't found a way. ”

Although they didn't find all the life within a hundred miles for experiments, at least they did find it within a radius of one mile.

"When it's time for the princess to eat, do you want to come over and see what you want to eat, and we will distribute the rest." ”

Who said that we also know that food must be distributed equally, and they are very annoyed when they know that tomatoes cannot be eaten, because afterwards tomatoes are considered a relatively large range of food in this place, and the proportion is very high.

Qian Rujun put the tomatoes into the space, not to destroy them, but to find out if there is a way to remove the toxicity of these tomatoes, so that these things can be eaten after being matched from something that cannot be eaten, after all, the toxicity contained in it is not very strong.

Everything in this world is sometimes really not absolute, because between toxicity and toxicity, sometimes it can be synthesized into something that can be eaten by human beings, poisonous, not that it cannot be eaten, sometimes it is a matter of quantity, and even a slight toxicity can make food more delicious.

Of course, people with this kind of courage are more or less a little perverted.

"You sent some people over and got some food, and we sent them into the space, and we ate in this place. ”

The students of Xuetang Island knew what Qian Rujun meant when he said this, so they sent four people over to choose the food they wanted to eat, and as for the food they had chosen, they would send it to the space, and then they would find a way to get it back for them, and they would eat the food in the space themselves.

When a few people who moved things came back, Qian Rujun would have eaten it a long time ago, and the more difficult the environment, the more they needed to give the people below something to eat, so that they could get over this difficult environment.

Qian Rujun knew that the student ID card of Xuetang Island was concentrating on the hole, maybe this was also because they had nothing to do, after all, they didn't find out what harm this hole did to them, even if they didn't solve this problem, it didn't matter, but there were too few new things on this island, so they had to find things to do, if they had a lot of belongings in the space, and they could study a lot of things, their attention might not be there, but when they were active outside the tent, they couldn't enter the space, because they had to give the sailors a concept, they were with the sailors, so they can't think of going into the space, not to mention that they must enter the space, that is, when they enter the house, they must have Qian Rujun's consent and permission, as well as an agent, otherwise they will not be able to enter.

Similarly, if it is outside the space, it will be much more difficult for them to get food, but Qian Rujun does not limit their difficulty in obtaining food in the space, for them, there will be a lot of meat in the village, which is relatively rare compared to vegetables, and they need Qian Rujun, and then give it to them, but now they find that they can enter the vegetable area, this is what the princess told them, otherwise they would not have the courage to try to cross the border, because they found that every time they approached the cross-border place, they had a sense of crisis, and they also believed in their sense of crisis。

Maybe they have gradually formed the so-called sixth sense, which can avoid some dangers, so they can spend it safely, but Qian Rujun's space is actually not so dangerous, when they want to cross the border to contact those vegetables, the space naturally has a mechanism that will allow them to be blocked back, otherwise there are so many animals in the space, they may not be able to have this sixth sense, knowing that the other party can't go there, but there has never been any animal in the space that has been destroyed because of cross-border, so in the space, in fact, this sense of crisis is not necessary, but their sense of crisis outside the space is relatively weak。

On the contrary, it will cause them to be unable to solve the danger when they encounter it many times.

"Let me think about it, and it occurred to me that even if we were going to find out what was on this place, why should we use the creatures of this place?

Although the princess didn't allow us to go outside the village, but the creatures in there still came to the village a lot of the time, I noticed that all kinds of creatures actually exist, in fact, I don't believe it, you didn't go to observe that place, almost everything, of course, some things seem to be the princess who we usually eat will regularly clear things, so sometimes the things we see will change, anyway, I think the creatures there should listen to the princess more? It's a pity that they can't speak, and even if they can talk to parrots, they can only learn the tongue, and they don't know the truth inside, so it's best to be able to communicate with someone who can go down and see it. ”

"Actually, we don't need to explain, then it's not fun, we just need to find things from below, different heights, find different things, and then we can do the analysis, isn't it more interesting?"

"Yes, yes, I think this method is good, let's ask the princess to see if the princess agrees?"

In fact, Qian Rujun could hear their conversation and talk on the side, and he did not exit the opinions they mentioned, and he did not speak out in favor or in favor of them, and he only reacted when they reached a consensus of opinion.

"It's the most suitable for mice, but I don't like rats, so there are no rats in the space, and even if they existed, they would have been driven out by me a long time ago. In fact, as long as there is an obedient animal, we tie a rope to him, it is estimated that we can reach the bottom, but now the problem is that we don't know how deep it is, if the system is too long, the careful animal probably can't drag it, if the rope is too short, maybe they only go halfway and come back, can't really reach the bottom of the cave and move, if it's water then the animals walking on land can't move forward, but if we put the animals swimming in the water, they don't have a way to pass through this long cave。 ”

"Princess, we don't have to think about it for so long now, what happened before, we can let a kitten go down first, see if it's land or water below, anyway, they can reach the bottom where they can go, as for the bottom, if it's water, let's find another way, after all, we don't know what the situation is down there, we just find a way to solve it first, anyway, we still have a lot of time now, just the same way to experiment." ”

Seeing that the others did not object to the opinions of the students on this school island, Qian Rujun smiled and grabbed a cat from the space, and controlled the cat, making him start to drill into the hole, in fact, he was also very curious, what was down there.

Qian Rujun is now a human body detection machine, it can detect moving things within a range of 100 meters under the water, but under the land, he can detect at most ten meters, and he doesn't know if it's deeper, the depth of this cave is obviously more than ten meters, so if you want to know what's inside, then you have to rely on other methods.

The kitten returned not long after entering, and he meowed a few words with Qian Rujun, and Rujun knew the situation below.

"What's going on down to the princess?"

The kitten said that he couldn't go down because after she went down for a distance, it was a more vertical situation, and he couldn't find a foothold, so he had to come back. ”

"Do you have to find someone who can fly?"

Most of the birds that can fly like bright skies, but he knows that some birds only fly at night, so Qian Rujun found owls from the space and asked them to try to fly.

The owl took more time to burrow into the ground, and when he came up again, he could tell from his feathers what was going on with him.

"It looks like there's a pool down there. It's so anxious, if there is a child here who can go down, or a thumbelina, but unfortunately such a thing only exists in the story told by the princess, and does not exist in people, and no one looks as small as a thumb. ”

Qian Rujun sighed, she really couldn't say that her body was so small. However, his soul can, and his soul can come out of the body, but Qian Rujun doesn't like this feeling, when the soul comes out of the body, he has no way to control his own body, the control is very sensitive, when he encounters a situation, he may not have time to rescue, and if the body is destroyed, his soul will also lose the root cause, causing damage.

In fact, he knew that this was the best way to go.

But he didn't want to use it much.

Anyway, the methods that the students of Xuetang Island said were actually smart methods, and it was not a big deal to try them one by one, not to mention that they didn't know what was below, if a thing of no value was asked to use such a dangerous method to test, then it would be irresponsible for his own life.

"They didn't seem to have picked up anything useful, and there was a pool of water on it, which was supposed to be fresh water, which was very unusual. ”

"Princess, how do you know this water is fresh water?"

"When this owl flies up, in fact, some of the water has already dried up, and after it is dried, as long as it is water, it will leave water stains, and you can't think of anything special when you see these water stains?"

Qian Rujun said to the Xuetang Island students next to her, in fact, she didn't believe that all the Xuetang Island students didn't think that some people were more familiar with the hydrological environment, because everyone's focus is different, there are always some people who are particularly focused on water, of course, there are also people who are particularly focused on water are not in this team now, after all, some teams are now sweating around, teaching them about the principles of motors.

The students of Xuetang Island around him were all brought back from the people who farmed the fields, but when he was about to return from Malaysia, he gathered all the students of Xuetang Island, so the students of Xuetang Island who were active in Dahan are now teaching and heading south into the territory of South Vietnam.

Now the Han Dynasty will generally not use force against South Vietnam, but after the pacification of the north, in fact, for the emperor of the south, it is probably becoming more and more impatient, and it is estimated that the time to use force should be very close, but when the emperor's army is using force, I believe that the students of Xuetang Island have the ability to avoid dangerous places.

Although Qian Rujun is far away, he still receives news from Dahan every once in a while, and the news he gets from Dahan also includes Bo Qing's news, after all, Bo Qing is already the person who has the most relationship with him in Dahan now.

According to intelligence, it seems that Bo Khanh is paying close attention to the movements of South Vietnam, and Bo Khanh himself has a military force.

With the military strength in his hands, it is actually enough to draw South Vietnam, Lan Yue is very strong, in fact, his strength lies in his environment, it is not easy to defeat him from the outside, but if you can send troops out of South Vietnam, it is equivalent to meat buns and dogs.