There are no roads to walk on in the Ten Thousand Caves Mountain, except for the rocky cliffs, and then there are caves of different sizes. If you want to enter these caves, you can only rely on flying, jumping, or climbing, and if you want to find a shortcut, easily enter those caves, it is simply delusional, if the caves are so easy to enter, and the treasures are so easy to find, how can they play the role of assessment and training?

According to some of the information he had learned on the Blue Star Network, as well as some experience and common sense summarized in his life and study, Yu Tianxiao felt that the treasures must be hidden in those caves that were tall, large and deep, and the structure was relatively complex, which was the norm. With this judgment, Yu Tianxiao discussed with Lan Xing'er and the four of them, and finally immediately selected a big cave with a height of 800 meters and a width of 600 meters to explore.

Among the 5 people, Yu Tianxiao's strength is the strongest, and he is the captain, so Lan Xing'er and the four of them all listen to Yu Tianxiao, Yu Tianxiao will follow wherever he goes, and they will never have any disagreement with this, but in order to respect everyone, Yu Tianxiao still asked the opinions of the 4 people.

Along the way, they sometimes flew, sometimes jumped, and sometimes simply climbed with their bare hands, and after about half an hour of arduous trekking, they finally reached the large cave they had chosen.

As soon as they entered this large cave with a height of 800 meters and a width of 600 meters, Yu Tianxiao and the others were shocked and surprised! I saw that this big cave was so deep that there was no end in sight, and I am afraid that it would be more than 1,000 kilometers. The entire cave is made up of that red rock.

At the edge of the cave wall, there is also a stream of water flowing down from time to time, and the water is also red, red like human blood, if the earthlings see this scene, the timid will probably faint immediately.

Not only that, but from time to time, there was a dark red mist emitting from the water, so that the entire cave couldn't help but be completely shrouded in the dark red mist.

Yu Tianxiao and the others stood at the entrance of the cave and observed for a moment, and then immediately walked towards the inside of the cave. Along the red rocky ground, several people watched around cautiously digging deeper. At this moment, in this huge cave, quiet, eerie, eerie, and even terrifying are all portrayals.

Although they were walking on foot, Yu Tianxiao was an elite student of the martial arts hall after all, and their abilities in all aspects were much better than ordinary people, so their marching speed was still very fast, and in a short time, they had already penetrated more than 30 kilometers.

Along the way, they made a quick forward march and probed carefully, not sparing even a small corner. However, after exploring and searching along the way, they did not find any special anomalies, and they couldn't help but be a little disappointed, saying that there were a lot of hidden treasures here, but they had explored so many places along the way, not to mention treasures, and they didn't even find a special place, so how could they not be disappointed.

Although they were a little disappointed, Yu Tianxiao and the others were not discouraged, because compared to the entire Ten Thousand Cave Mountain, the places they explored and searched were still too few, so it was normal to not be able to find treasures. Thinking of this, they did not think much about it, but continued to slowly probe deeper into the cave, perhaps only by really going to the deepest depths could they find the hidden treasure inside.

In the next exploration and search, Yu Tianxiao and a few people obviously began to speed up their travel, they not only moved forward on foot, sometimes they also occasionally flew a distance, among the 5 people, only Yu Tianxiao was able to fly for a long time and without restrictions, while the other 4 people could only fly a distance before stopping, and then rest for a while before continuing to fly.

The 4 people of Lan Xing'er not only had to rest during the flight, but also the flight distance was also very short, probably only a distance of more than ten meters to dozens of meters, so in order to take care of Lan Xing'er and them, Yu Tianxiao also had to fly a distance, and then rest with everyone for a while, and then continue to fly with everyone.

If it was just Yu Tianxiao alone, then he could fly all the time, and conduct exploration and search while flying, which is the gap caused by different life structures and different talents.

Just after Yu Tianxiao and the others had traveled a distance of about a hundred kilometers, they couldn't help but suddenly find that another cave had appeared on the right side of the cave. I saw that this cave was much smaller than the main cave, more than 400 meters high and more than 200 meters wide, and there was a dark red mist coming out of it from time to time.

After seeing this branch cave that suddenly appeared, several people couldn't help but stop immediately, and then Yu Tianxiao whispered to the others: "Now that a new cave has appeared, tell me, do we continue to advance to the depths of the main cave, or enter this branch cave?" ”

"I think it's better to continue moving towards the main cave," Lan Xing'er couldn't help but say.

"I think Sister Xing'er is right, it's better to continue to advance towards the main cave." At this time, Bing Lanruo couldn't help but say this on the side.

"I listen to the captain, and I will go how the captain says." At this time, Lin Dufeng couldn't help but laugh.

"Yes, I also listen to the captain, and I will go wherever the captain says." Qu Tianxing also said.

Listening to the words of a few people, Yu Tianxiao couldn't help but start thinking about it, and after a while, he immediately said to everyone: "Continue to explore the depths of the main cave, I believe that there will definitely be a better choice waiting for us there." ”

"Hmm!" After hearing this, the other people did not disagree, but all nodded heavily.

"Alright, let's continue our journey to the main cave." As Yu Tianxiao's words just fell, swish! Everyone quickly took off into the air and flew directly deeper into the main cave.

Along the way, they traveled very fast, and when they advanced more than 300 kilometers to the depths of the main cave, they were surprised to find that there were nearly 100 branch caves of all sizes here.

The largest of these branch caves is nearly 500 meters high and 400 meters wide, and the smallest is more than 100 meters high and 60 meters wide. The entire group of caves looks like a labyrinth, scattered around the main cave, and each cave has a different degree of dark red mist emerging from it.

Looking at these strange caves of all sizes in front of him, Yu Tianxiao couldn't help but immediately point to the largest branch cave with a height of 500 meters and a width of 400 meters and said to everyone: "Let's go, let's enter this largest cave first." ”

"Hmm." Several others nodded in response.

Then Yu Tianxiao led everyone to quickly fly into the big cave with a height of 500 meters and a width of 400 meters.

The structure of the caves in Wanguo Mountain is very peculiar and complex, and from the outside, they are one after the other, distributed throughout the mountain group. And when you enter the cave, you will be surprised to find that many caves are connected, the big caves will separate many small caves in a certain section, and many small caves will also separate more and smaller caves in a certain section, so that they are connected to each other and circulate with each other, as if they are connected to each other, which is extremely strange and special.

From the outside, there are more than 30,000 large and small caves in the entire Wandong Mountain group, but if you calculate it from the inside, the caves in the entire Wandong Mountain add up, I am afraid that there are more than hundreds of thousands, which can definitely be described as countless.

In so many caves, there is no detailed map reference, to know which place has treasures and which places does not have treasures, it is really too difficult and difficult, it can be said that it is definitely looking for a needle in a haystack, and looking for treasures in such a place is definitely a test of the luck and patience of the treasure hunter, as well as the courage.

Just when Yu Tianxiao and the others were in that branch cave, and they advanced to a depth of about 200 kilometers, suddenly, they couldn't help but feel a swallowing force in front of them attacking them.

When he felt this not too big swallowing power, Yu Tianxiao couldn't help but immediately said to the others around him: "There is a vision ahead, this is the first time we have discovered the existence of a vision since we entered this cave, this swallowing force is not too big, let's continue to move forward, maybe there will be a major discovery in a while." ”

"Okay." Lan Xing'er and the others also responded excitedly.

So Yu Tianxiao and the others continued to march towards the interior of the cave with the not too strong swallowing force.

As they traveled deeper and deeper, the force of swallowing became stronger and stronger, and finally when they felt that almost two-thirds of their march came from the force of swallowing, they couldn't help but find that there was a huge whirlpool nearly a hundred meters in front of them.

I saw that the huge whirlpool was constantly spinning all the time, and there was no need to feel it, as if it could swallow the entire universe with that rotating momentum alone, and a lot of dark red mist was sucked into it by its strength, and then disappeared into its depths.

When Yu Tianxiao and the others saw this huge fiery red whirlpool, they couldn't help but be shocked in their hearts: such a big whirlpool, I really don't know what kind of scene the other end of the whirlpool will be? Is it a treasure? Or is it an endless danger lurking?

Just when Yu Tianxiao and the others were making their own conjectures, suddenly, the swallowing power of the whirlpool couldn't help but increase suddenly, from the previous slow inhalation to wild sucking, and instantly reached the limit that Yu Tianxiao and the others could bear.

"Run! Dangerous! ”

With Yu Tianxiao's order, whoosh! Everyone else immediately jumped up, and they all used their strongest flying ability at this time to rush away the same way.