If the Great Wilderness Ancestor's Cave Mansion is really an independent small world connected to the outside world but self-contained, then not to mention the various things left by the Great Wilderness Ancestor in the Cave Mansion will attract everyone's competition, and the cave itself alone will definitely become the object of everyone's desperate contention. Thinking of this, Xia Fan suddenly felt the pressure suddenly increase, and he couldn't help but be high-spirited.

It's just that although Xia Fan has set a goal in his heart in an instant, and he is determined to achieve this cave, he also knows very well that this matter is not easy. If everyone wants to rob it, it means that if you want to succeed, you have to kill at least twenty or thirty powerhouses of the Divine Spirit Realm, or more precisely, there are as many as twenty-seven people.

Although the strength of these people is different, absolutely none of them are soft persimmons. Especially these people like Hehuan Shendao, Poison Crow, and Shui Qing are even more extraordinary, if they fight alone, with Xia Fan's super combat power, if they want to kill them one by one, although it is not particularly easy, but it is not too difficult, but if these people are getting together, even if Xia Fan is strong, it is impossible to kill a group by himself.

It seems that we have to find a way to find some refining materials, and first refine a magic weapon that is handy. Xia Fan thought in his heart, and immediately followed the flow of the river and walked upstream.

Because the surrounding environment was unfamiliar, it was difficult to judge whether there was danger hidden in the seemingly safe environment, so Xia Fan didn't plan to walk around even if he was too strong to be strong, and after some careful consideration, he decided to find the entrance when he entered this space first. In his mind, if this cave is really an independent small world, then although it is connected with the main world, there will definitely not be many entrances and exits.

This principle is very simple, just like a container, if it is to be used to hold something, there will definitely be a mouth, but it will never be too much, especially like a bottle or kettle used to hold water, more than half of it is a mouth, at most two, otherwise, it is not a container, it is called a fence or a sieve.

The small world is actually the same, although it is self-contained, but it is unlikely to be separated from the main world until it completely becomes a real world, so it will open an opening to communicate with the main world at intervals. It's like the connection between some lakes and rivers. It is precisely because the river pours water into the lake from time to time that the water in the lake does not dry up completely or become stinky.

In this case, Xia Fan wanted to find that entrance and exit, because he believed that this was the only place to enter and exit. As long as you can find and occupy this place, then you are invincible.

It's a pity that although the idea is good, Xia Fan found that he still thought things simple after walking along the river for a short time, because there were many rivers in front of him, and they were intertwined with each other, and the water flow was sometimes merging and sometimes separating, and it was not easy to go upstream and find the entrance he was looking for.

Of course, if Xia Fan has enough patience to look for it along the rivers and the net, he may not be able to find it, but that is too much of a waste of time, and after Xia Fan walked along the river for a while, he was surprised to find that these rivers were not as simple as he imagined, because in addition to continuously sending the river water from where he didn't know where to go and nourishing the earth, they also formed a huge formation.

At first, when Xia Fan noticed this, he really thought that he was wrong, but after carefully observing it for a while, and even flying into the air to overlook the direction of the river below, he was sure that what he saw and thought was really not wrong. These rivers are indeed connected to each other, forming a large formation.

Because they are now a large formation, it is quite difficult to find their source. Xia Fan realized this when he flew into the air to look down, because with his current strength, the limit of his eyesight can reach three or four hundred miles, to say the least, and the divine mind probe is even farther, but he was just above the sky, and at the same time, he released his divine mind to scan the surroundings, and found that he could only see and feel the scene within a hundred miles around him, and if he was far away, not only would the scene he see be vague, as if it was covered by clouds and mist, but even the divine mind perception became very dull, as if it was blocked by something.

This feeling made Xia Fan immediately think of his previous experience when he was outside and used his divine thoughts to explore the formation at the bottom of the lake, and it was not difficult to judge that the formation here must be from the same person as the formation outside, and the same arrangement was made to prevent people from snooping too much with their eyes and divine thoughts.

Although he couldn't find the entrance as he wished, Xia Fan was not too disappointed, because from this he was also sure that the direction he was looking for was not wrong, presumably the entrance was in the upper reaches of the river, otherwise there would be no need to arrange such a huge formation to protect it. Now that he can't get by, Xia Fan simply won't try, but he hasn't forgotten to remember the location here, and is ready to wait until he has explored all parts of the cave mansion, and then come back and try to break the formation.

Before, Xia Fan was still a little worried about how to find the cave mansion in the true sense of the Great Wilderness Ancestor in this vast small world, because if he wanted to find a place in such a big place that might not be particularly large, he would really feel like looking for a needle in a haystack, but after seeing the formation composed of these rivers, even if he only saw a part, it was enough for Xia Fan, who had a high attainment in the formation, to roughly deduce what the layout of the entire formation was.

And with this huge formation that might cover the entire small world as a guidepost, it would be much easier for Xia Fan to find the cave mansion where the Great Wilderness Ancestor was located in this small world.

This principle is very simple, just like a house, no matter how weird its shape is, but as long as it is built by a normal person, it will definitely follow some rules for building a house and conform to people's habits, under this premise, even if an outsider comes to a strange house, even if it is not familiar, it will definitely not appear that you want to find a toilet but walk into the bedroom.

In fact, the formation is the same, no matter how ingenious the person who arranges the formation is, and no matter whether the formation is big or small, whether it is a board or a glance or weird, the big rules it follows will definitely not deviate from the foundation of the formation, and the left and right are inseparable from the five elements of yin and yang, so as long as Xia Fan pushes back from this, it may not be easy to break the formation, but it is really not difficult to use it as a road sign.

After carefully looking at the surrounding terrain and formation trend a few more times, and making sure that he had firmly memorized it, Xia Fan turned around and left.

When Xia Fan came, he went upstream, but when he left, he didn't go down the river again, but directly changed his direction.

After judging the direction of the huge formation in the small world in his heart, Xia Fan suddenly felt like he had gotten a map in this originally unfamiliar place that seemed to have a black eye, and naturally became full of confidence, so he was ready to find the real cave mansion of the Great Wilderness Ancestor in front of everyone, presumably there would definitely be a lot of good things waiting for him.

Thinking that there might be a hub to control all the formations in this small world, Xia Fan's heart couldn't help but be excited.

Although he was in a hurry to leave, Xia Fan did not fly with his head down, but would stop from time to time to collect some precious and rare alchemy materials.

Xia Fan didn't know how long this small world had been closed, but if it was calculated from the time when the Great Wilderness Ancestor disappeared, it would have been three or four hundred years to say the least. In such a short period of time, and this small world is still in an almost closed state, and at the same time, it is also full of spiritual energy, one can imagine how rich and diverse the materials used in the various alchemy cultivated here will be, and how excellent the quality will be.

At least Xia Fan came all the way and found and collected a lot of materials that are now very rare or even extinct outside. This made him happy, but also strengthened his determination to grab this small world in his hands no matter what.

Although it is very gratifying to have a harvest, it will inevitably affect the speed of the journey by stopping and stopping in this way. In this regard, Xia Fan also felt quite helpless, of course he wanted to find the cave of the Great Wilderness Ancestor as soon as possible, but he was unwilling to let go of the precious alchemy materials, so he could only continue to stop and go while struggling.

In addition to the alchemy materials, Xia Fan also found some refining materials of good quality, but after all, this is a small world, of course, it cannot be compared with the rich main world, so the quality of the refining materials is slightly worse, but in the future, when refining the tools, it can be refined many times to remove impurities and improve the quality of the materials to make up for it.

"Boom ......" I don't know how far I walked out, Xia Fan, who was digging a herb growing on the cliff wall, heard a roar coming from a distance. He was so familiar with this kind of voice, and with his eyes closed, he knew that it was the explosion of spells or magic weapons when the monks were fighting with each other.

I don't know who is so anxious, this hasn't happened yet, it's already started. But that's fine, if you kill one less person, if everyone else dies together, it will save me trouble. Xia Fan pursed his lips secretly, he didn't bother to pay attention to it at all, and still focused all his attention on the herb in front of him.

This herb has a very strange appearance, the leaves and flowers are similar to lotus flowers, but it does not grow in water, but on the cliffs.

Although the stone of the cliff was hard, it could not stop its roots from penetrating at all, so that the stone where the herb took root had cracked one after another, and from this point of view, there must have been many cracks inside.