As waves of people entered the whirlpool, the whirlpool continued to shrink, until it finally disappeared at the mouth of the cave.

After Lu Xiao entered the ruins, he looked around and found that he was in a forest, with towering trees reaching into the sky, dense branches and leaves interconnected, and almost no sunlight could be seen.

But what made Lu Xiao quite puzzled was that Mu Yan was missing, and Lu Xiao looked around for a while, but still didn't find Mu Yan.

However, when Lu Xiao was looking for Mu Yan, he suddenly felt that there seemed to be a different fluctuation in the air than just now.

Lu Xiao turned his head to look behind him, and found that the vines of those towering trees had stretched out sharply, and they were stabbing towards him at a rapid pace!

Lu Xiao saw those vines stabbing towards him quickly, but he didn't dare to stop, and hurriedly flashed to the side, just past the vines that were stabbing rapidly.

After dodging those vines, Lu Xiao didn't dare to slack off, and then looked around vigilantly.

It wasn't long before the vines launched a new attack, and this time the vines landed from all directions!

Lu Xiao couldn't help but be shocked when he saw this kind of scene! But soon Lu Xiao calmed down the shock in his heart, identified a direction and ran towards those who were coming quickly, saw the gap in it, and instantly ran out of the gap towards the encirclement of these trees and vines.

But as soon as Lu Xiao arrived outside the encirclement of the tree vine, he saw a tree vine drawn towards him, as if he wanted to pull himself back into the encirclement.

Lu Xiao didn't have any slackness, and before the vine reached him, he quickly left this place of right and wrong, chose a random direction, and left quickly!

In the process of running forward quickly, Lu Xiao found that he seemed to be trapped in a formation, and this formation was a wooden formation, although the attack power of the wooden formation was not strong, but he had been trapped in such a formation, and no matter how powerful he was, he would eventually lose his strength because of the endless entanglement of these tree vines.

After all, no matter who is in this ruin, the cultivation will be suppressed at the peak realm of the Yuan, which means that the cultivator here cannot use the power of the elements of heaven and earth, and can only rely on his own physical strength to fight against this formation.

So Lu Xiao wisely chose to leave, instead of staying there and entangled with those vines.

The reason why Lu Xiao was able to know that he was now trapped in a formation was entirely because of the book "Strange Conversations on the Mainland" left to him by the old Taoist priest when he left, and among some of the things recorded on it that were called sideways in the cultivation world, the most powerful was this formation.

This formation can not only kill people, but also confuse and trap others, in addition, there are also some special formations that can also help cultivators gather the elemental power between heaven and earth, and then help cultivators to cultivate.

When Lu Xiao saw this formation, he was quite curious, so he also studied the formation with the help of Mu Yan, and also had some experience.

Now Lu Xiao observed the environment in the forest, and those trees before would attack him inexplicably, so he deduced that he should be in a formation now.

However, since it is in a formation, there is naturally a way to break the formation!

Mu Yan once told him that all formations have formation eyes, and as long as they can break the formation eye, this formation will naturally be self-defeating.

The so-called array eye is the core of a formation, which controls the operation of the entire formation and plays a decisive role in the entire formation.

Generally, the eyes of the formation are in the very center of a formation, so Lu Xiao is now running fast to avoid the attacks of those trees and vines, and on the other hand, the direction has gradually changed to the center, so as to find the eye of this formation.

After running at a rapid pace for nearly an hour, Lu Xiao finally arrived at the center of this formation.

Lu Xiao stopped his rapid pace and looked towards the center of the formation, and found that in the center of this formation, there was a turquoise long sword.

The blade of this sword is slightly slender, and the hilt shimmers with an emerald green light.

After Lu Xiao saw the broken sword, he thought in his heart: "This sword should be the eye of this formation." ”

Immediately, Lu Xiao walked towards the sword, but when Lu Xiao was about to approach the sword, the earth suddenly trembled violently.

Lu Xiao felt the trembling of the earth, and couldn't help but stop, waiting to see why the earth suddenly trembled.

As the earth trembled, just in front of the sword, a green figure slowly emerged from the ground.

The trembling of the earth slowly stopped, and Lu Xiao fixed his eyes and saw that a tree had grown in front of the sword.

But what shocked Lu Xiao was that the tree was slowly walking towards him, and as the tree moved, the roots of the tree also supported the movement of the big tree like feet in the air.

Lu Xiao was still in shock, but the big tree that could move had already come not far from Lu Xiao, and the dense branches were constantly getting thicker and longer to attack Lu Xiao.

With a 'bang', Lu Xiao, who was not ready, was suddenly hit by the branch, flew up in an instant, and then fell to the ground.

This also woke Lu Xiao up from shock.

Lu Xiao quickly stood up from the ground, and then looked at the big tree with all his attention, only to see that the big tree branch waved again, and pulled towards Lu Xiao again, Lu Xiao turned over in a volley, and avoided the rapid branch.

Lu Xiao thought to himself, this big tree should be the hand left by the owner of the ruins in order not to be destroyed by others.

Therefore, after Lu Xiao avoided this branch, he did not entangle with this tree vine too much, but avoided the attack of the big tree, bypassed the big tree, and rushed towards the sword.

Because Lu Xiao knew that as long as he pulled out that sword, this formation would not be self-defeating, and the attacks caused by these vines and branches would disappear at that time.

When the big tree saw Lu Xiao walking towards the sword, it immediately turned around the body of the tree, and a large number of branches shot towards Lu Xiao quickly, as if it wanted to entangle Lu Xiao so that he could not get close to the sword.

Lu Xiao felt the sound of breaking the sky behind him, and suddenly took out the long flute left by the old Taoist priest from the storage bag, and waved it behind him without looking back, just forming a protective shield behind him, blocking those branches that came quickly.

And after those branches hit the pipe, they quickly retracted as if they were in pain.

And because of the time that the long flute helped Lu Xiao buy, Lu Xiao also came to that one, the long sword came to him, Lu Xiao stretched out his hand and held it on the hilt of the emerald green sword, and then with a force, the long sword rose up with Lu Xiao's hand,

And just after Lu Xiao pulled out the long sword, the scene in front of him was constantly changing, the moving tree was slowly disappearing, and the entire forest gradually became blurred in Lu Xiao's sight, and finally disappeared completely.

After those forests disappeared, Lu Xiao looked around again and found that he was in a vast ocean, and what surprised Lu Xiao was that he was standing on top of this endless sea now, but he didn't feel like he was about to sink.

Lu Xiao thought to himself: "This should be the water system formation!"

Immediately, Lu Xiao tried to take a few steps above the sea, and found that he was like being on flat ground, without a trace of discomfort because he was out of land.

Lu Xiao tried to squat on the surface of the water again, stretched out his hand to the water, and in an instant, Lu Xiao's hand sank into the water, and there was a trace of ripples on the water.

Seeing this phenomenon, Lu Xiao couldn't help but become bolder, and used the turtle breath method he learned in the secular world to adjust his breathing to internal breath, and then the whole person rushed towards the water.

only heard a "plop" sound, and Lu Xiao's whole body was submerged in the water.

After entering the water, Lu Xiao stabilized his body, looked around, and found that this sea area was no different from the real sea, a large number of swimming fish shuttled around in this water without any worries.

When Lu Xiao saw this, he couldn't help but sigh at the wonder of the formation!

However, Lu Xiao was not as careless as he was in the wood formation, but was always vigilant and began to look for the eye of the water formation in this sea water.

In Lu Xiao's opinion, the layout of this water system formation should be roughly the same as the layout of the wood system formation just now.

So Lu Xiao began to swim towards the center of this formation.

But when Lu Xiao was swimming towards the center of the formation, suddenly on the left side of Lu Xiao's body, there was a slight fluctuation on the water surface, and the random sea water began to shake, and Lu Xiao's body also shook with the shaking of the sea water.

Lu Xiao quickly stopped, stabilized his figure, and looked in the direction of the source of the shaking of the seawater.

It didn't take long for a huge strange fish to appear in Lu Xiao's sight.

I saw that the strange fish was attacking Lu Xiao quickly at a speed that was extremely inconsistent with his huge body.

Lu Xiao saw the strange fish attacking towards him, and he was ready to attack the strange fish, and instantly Lu Xiao's fist and the strange fish's fish head collided tightly, and then Lu Xiao turned his fist into a palm, pressed the head of the strange fish with one hand, and then took advantage of the momentum to swim up, and instantly reached the top of the strange fish's head.

The strange fish saw that Lu Xiao had reached the top of his head, and the random fish tail swinged, which instantly caused a huge fluctuation, and those swimming fish that were swimming leisurely around him, without any preparation, were instantly turned upside down by this huge fluctuation, causing a large number of deaths.

Lu Xiao was also swayed left and right by this huge fluctuation, and he couldn't stabilize his body.

In the end, Lu Xiao struggled a lot to stabilize his figure.

And at this moment, the attack of the strange fish came in front of Lu Xiao again.

Before Lu Xiao could react, the tail of the strange fish had already attacked in front of Lu Xiao!

"Smack", Lu Xiao was photographed far away in an instant, and the huge concussive force made Lu Xiao's blood churn up and down in an instant.

Lu Xiao, who had just stabilized his figure, made a "poof", and a mouthful of bright red blood spurted out of his mouth. But the blood quickly dissipated in the vast sea.

Lu Xiao didn't care about the blood that spurted out, but with his right hand, a slender turquoise long sword was taken out of the storage bag.

Lu Xiao stabilized his figure, stood with his sword in his hand, and floated there vigilantly looking at the strange fish!

Sure enough, the strange fish saw that he didn't kill Lu Xiao with one blow, so he immediately rushed towards Lu Xiao!

Lu Xiao saw the strange fish rushing over, and also rushed towards the strange fish with a long sword in his hand, and with a wave of the long sword in his hand, a water blade was instantly formed, slashing towards the strange fish.

With a "snort", the water blade attacked the fast-moving strange fish, instantly leaving a deep wound on the strange fish.

But to Lu Xiao's surprise, there was no blood flowing out of the wound of this strange fish, but a large amount of water elements were gathered.

However, Lu Xiao immediately figured it out, in this formation, everything is illusory, just like this strange fish, it is not a physical object at all, it is just a large amount of water elemental power gathered in this formation.

But even if Lu Xiao was faced with such an illusory thing now, he had to use all his strength to deal with it.

Because at this time, the strange fish didn't seem to care about the damage caused by that sword, and still rushed straight towards the landing!

Lu Xiao held the sword in front of his chest, just blocking the attack of the strange fish, and with the help of the powerful impact of the strange fish, he retreated.

When he got close to the strange fish, Lu Xiao swung his long sword again and slashed at the head of the strange fish, and with a "click", the head of the strange fish was cut off.

Then, the whole strange fish suddenly stopped moving, and then, with a "bang", the whole strange fish turned into a string of water droplets, and finally disappeared in the vast sea area, merging with the sea!

After eliminating this strange fish, Lu Xiao was about to continue to look for the eye of this water formation, but he instantly felt that the sea water was slowly boiling.

It didn't take long for Lu Xiao to feel the unbearable heat.

So Lu Xiao didn't think about it, and instantly rushed out of the sea water and returned to the air.

As soon as Lu Xiao returned to the air, he found that the sea water in the vast sea was decreasing at a speed visible to the naked eye, until it finally disappeared, and at the same time, the temperature in the air was also rising, and finally it almost reached the limit of Lu Xiao's bearing, and then slowly stopped!

Lu Xiao watched this scene the whole time and understood that this was a process of transformation towards the fire formation.

However, what puzzled Lu Xiao was that he didn't find the eye of the water system formation, how could this formation break by itself?

Lu Xiao understood that it was definitely not the reason why he killed the strange fish, because with Lu Xiao's understanding of the formation, he knew that the formation eye of a formation was generally an immovable thing, and the strange fish obviously did not meet the conditions of the formation eye, so that strange fish was not the formation eye!

But what the reason, Lu Xiao never thought of.

However, Lu Xiao is not the kind of person who drills the horns of the bull, so he doesn't think about it anymore if he can't figure it out. In Lu Xiao's opinion, all mysteries will eventually be solved one day!

After the water system formation was broken, Lu Xiao looked around again, and found that the vast sea area just now had turned into an endless sea of fire.

In the endless void, between the sea of fire, the iron chain bridges connected by iron cables were suspended in the void.

And Lu Xiao is now on an iron cable, surrounded by an endless sea of fire!

The situation can be said to be quite dangerous!