"The opportunity must not be lost, the opportunity cannot be missed, we must seize the opportunity and seize the time to explore......" Wu Feng made a decision and quickly dived into the lake, just because the time waited for no one.

It was not a spur of the moment for him to ignore the danger and explore the Blackwater Lake again, not only to satisfy his curiosity for knowledge, but also to find out what made the bone dragon sapient at the bottom of the lake, and whether he could find something related to it.

The last time I explored the lake, I was worried about the whirlpool at the bottom of the lake, so I didn't dare to swim to the center of the lake, and I haven't seen a bone dragon yet. In fact, in the previous time, I didn't have a strong sense of danger and didn't go deep into the bottom of the lake to explore, except for worrying about the whirlpool, the key was the situation, and I didn't have the idea of exploring the lake at all.

Until the appearance of the bone dragon, it was known that there was a big murderous thing hidden in the Black Water Lake, Wu Feng did not dare to enter the lake to explore, and even thought that it was difficult to explore the Black Water Lake after missing the opportunity.

And this time the bone dragon is leaving, it is a good opportunity. Wu Feng couldn't be sure that those three Dangang Realms could kill the bone dragon. If the bone dragon comes back, the Blackwater Lake is still a forbidden area for him to dare not go deeper.

Regardless of whether there is a bone dragon or not, the strongly corroded Blackwater Lake is a forbidden area for the rest of the people.

But Wu Feng, who holds the water beads, if there is no bone dragon in the lake, it is his safe refuge area. However, in the Blackwater Lake, there is a bone dragon that he can't compete with, just like his forbidden area of life and death.

Wu Feng was different from the rest of the people, he was not afraid of the corrosion of the black water, he was only worried about the vicious bone dragon.

And the rest of the people, who are weaker in cultivation, have to worry about not only the bone dragon, but also the black water. And those who are strong in cultivation and can defeat the bone dragon are also powerless to resist the corrosion of the black water and dare not enter the black water lake.

The bone dragon may not be strong, but the Mixed Yuan Realm can resist and escape from the pursuit of the bone dragon.

However, the bone dragon defense was strong, ignoring the attacks of the Dangang Realm, and the three attacks of the Dangang Realm were released. It didn't cause any actual damage, it just lured the bone dragon away, provoking the bone dragon's wrath.

Maybe even in the black water, the bone dragon is the immortal and immortal being.

Fortunately, at the current time, the bone dragon rolled into the Black Wolf Canal and faced three Dangang Realm interceptions. Even if he can save his life, it will be impossible to return to the Blackwater Lake in a short time.

After all, the Black Wolf Canal has a relatively large drop, and the power of the water flow is not small, and when the bone dragon fights with all its strength, it can only go to the Wild Wolf Valley.

In the Black Wolf Canal, the three Dangang Realms cooperated, and they had the opportunity to kill the bone dragon. If the bone dragon enters the Wolf Valley. At present, the black water flows into the valley, and the water level rises to the mountainside, although it is not as deep as the black water lake, but it is not a shallow water beach, and the chances of the three old monsters will become very slim.

The three old monsters of the Dangang Realm, the situation of intercepting and killing the bone dragon, Wu Feng obviously had no way of knowing.

When he entered the blackwater lake. There was no direct in-depth and stopped five miles offshore. Pay attention to the condition of the lake. After waiting for a while, no one came, and after confirming that no one saw him enter the black water, he quickly swam to the center of the lake.

"My worries are a bit unnecessary. At this time, it is estimated that everyone. They all go to the Black Wolf Canal, and they will not hide in place to investigate, but they are cautious and there is no fault in exploring the lake now......" Wu Feng thought to himself, he hid in the lake and waited. It is to make sure that there is no one hiding in the shadows.

Although when he was on the shore, he sent out his soul thoughts to investigate, but it was difficult to ensure that no one hid and avoided his soul thoughts.

The release of water from Heishui Lake is not a trivial matter, and the people who came during this time will not reach the Dangang realm and do not want to get involved in grievances, so they will only hide in the shadows.

Wu Feng didn't want to be exposed, he was not afraid of the corrosion of the black water, and if there were treasures to resist the black water, he had to be extremely careful and not be careless.

Because of the water beads, Wu Feng can't actually touch the black water in the water shelter space with a diameter of ten zhang. If you can't touch the black water, you can't swim in the water, and Wu Feng has a tight time, so he can only walk along the bottom of the lake and step on the hard black soil at the bottom of the lake.

The power of the water bead has been experienced before, Wu Feng did not have the slightest doubt, the water bead in his hand, and ran at the bottom of the lake.

Although five feet away in front of you, there is intensely corroded black water. But Wu Feng ran forward, the water beads moved forward, and the water space moved forward, and between Wu Feng and Heishui, five zhang was an eternal distance.

This is the power of the law of avoiding water beads, water space, and water. I have to admit that a treasure like a water-repellent bead cannot be measured by common sense.

It is the Black Water Lake, which has not been explored for tens of thousands of years, which means that in this part of the Central Continent, there have been no water droplets for tens of thousands of years.

The water-repellent beads came from the East China Sea, but they appeared in the Central Continent, after all, the rumors of the black dragon treasure mentioned that the water-repellent beads could be in the black water lake to ensure that the treasure would not corrode.

It may be the Middle-earth Spiritual Domain, the water-repellent beads that appeared, but now they have long been damaged, or lost somewhere. It may be that the pearl is covered with dust, and someone is holding a water-proof bead, but the purpose is not clear at all.

But in any case, Wu Feng was the first person to enter the Blackwater Lake in tens of thousands of years.

The previous time, he didn't care about the treasure rumors, and he didn't have the idea of treasure hunting. And seeing the bone dragon derived from the spirit of wisdom, the water level of the Blackwater Lake is constant, and the idea of exploration is very strong, this time I will not miss the opportunity, and when there is no danger, I will quickly go to the center of the bottom of the lake.

Two hours passed in the blink of an eye, Wu Feng ran out of two thousand miles, in the water shelter space, he could only run on his feet, if it wasn't for Wu Feng, the body refining body was strong, it was difficult to run two thousand miles.

But I have to say that two thousand miles in two hours and one thousand miles in one hour are definitely the fastest speed that a body refiner in the Dirty Realm can run.

"The average diameter of the Blackwater Lake is roughly 6,000 li, but this is a conservative measurement, not counting the bays and ditches, basically most of the lake shores, and the diameter of a point can reach 6,000 li......

"The shore where the water entered before was roughly standard, not where the lake bay is, and it should be about three thousand miles to find the center of the lake. Now when you run two thousand miles, you must pay attention to finding the lake and bay, and you can't find the wrong route. Wu Feng secretly thought to himself that it was easy to get lost when running in the black water.

Fortunately, due to the release of water from the Black Wolf Canal, the black water has a slow flow, and Wu Feng entered the water from near the gap in the water release to explore the Black Water Lake, and he had to move against the water, and the general path was correct.

But after two thousand miles, not far from the center of the lake, it is necessary to look carefully.

What's more, in Wu Feng's eyes, there is a secret in the center of the lake, and it must be treated with caution. The first time Wu Feng explored the lake, he never went deep into the center of the lake, but he thought of Heishui Lake, the water level has not changed for tens of thousands of years, and there must be other undercurrents, which complement each other with the lake.

Even now, Wu Feng still hasn't dispelled this idea.

There is an undercurrent at the bottom of the lake, and if there is an undercurrent, there is a whirlpool, which must be treated with care, and if you are involved in the whirlpool, it is difficult to guarantee that you will not die.

What's more, to keep the water level stable, it is not enough to rely on the undercurrent, it is necessary to establish a formation, when the water is redundant, the black water in the lake is introduced into the undercurrent, and when the water is scarce, the water in the undercurrent is released to keep the water level stable.

If it is one, there is a formation of the whirlpool at the bottom of the lake, it will inevitably be even more dangerous.

"The black water is indeed flowing, and there should be nothing wrong with what I have always thought. Wu Feng thought to himself, slowing down his progress and observing the changes in the flow of black water outside the water-sheltered space from time to time.

In fact, before going deep into the bottom of the lake, Wu Feng was not sure that the mystery of Heishui Lake was hidden in the center of the bottom of the lake. But the flow of black water at the bottom of the lake undoubtedly confirms this.

If the mystery is not in the center, the black water flowing to the gap, the direction of the water on the surface of the lake, will be somewhat distorted. The mystery is not at the bottom of the lake, and the black water at the bottom of the lake will not flow, but will only flow on the surface.

Not to mention the density of black water, it is fifty percent higher than ordinary fresh water. It is that the bottom of the lake is thousands of zhang deep, and the bottom pressure is very strong, but the ditch is 800 zhang deep and 500 zhang wide, and the flow of water will not touch the bottom of the lake at all.

Based on what he saw, Wu Feng thought to himself: "The situation I speculated gradually proved to be correct, the secret of the Blackwater Lake, the most critical mystery, should be in the center of the bottom of the lake." ”

"It is likely that as I guessed, there is an undercurrent in the center of the bottom of the lake, and the undercurrent is controlled by a formation, which complements the water level of the Heishui Lake and maintains a stable water level...... But such a situation also means danger. Wu Feng was more cautious in his heart, without the slightest relaxation.

Always pay attention to the changes in the lake water, quickly approach the center of the lake bottom, and at the same time pay attention to the lake behind you, close to the black wolf canal, if there is any coercion.

After all, two hours have passed, and the battle between the bone dragon and the three Dangang realms should have a result, and if the bone dragon escapes back, Wu Feng will be very dangerous.

And at this time, in the Black Wolf Canal, due to the interference of the water flow and the interception of the Black and White Magic Spear, the bone dragon could not return to the Black Water Lake. And the Qingyun Sword was the main attack, and the bone dragon had been at a disadvantage until it entered the Great Rift Valley, which was relatively low, on par with the Wild Wolf Valley, and the water level was deeper than the Wild Wolf Canal.

The Bone Dragon entered the Great Rift Valley, relying on deeper water levels to gradually regain its disadvantage in battle. But if the bone dragon wants to retreat to the Blackwater Lake, it is obviously not an easy task, and it can only stalemate in the Great Rift Valley and the Wild Wolf Valley.

"Qingyun Sword, you can't let the bone dragon escape back, you have to hurry up and kill, and when the water level in the Wild Wolf Valley rises, you will lose the opportunity to kill. The Black Devil Spear spoke, knowing very well the current shape, no longer retaining its strength, and cooperating with the Qingyun Sword to attack.

Compared with the ditch dug out, which is only eight hundred zhang deep, the water level in the Wild Wolf Valley is deeper, and the bone dragon does not emerge at the bottom of the valley.

After slowing down, another two hours passed, and Wu Feng advanced about a thousand miles, and it is estimated that the bottom of the lake where he is located is near the center.

"Well, the water flow has changed a little, and the mystery at the bottom of the lake is roughly around here, right?" Suddenly, Wu Feng noticed that the black water was not completely flowing south, and quickly adjusted the exploration route.

"No whirlpools?" Wu Feng searched for the water to move forward, but he didn't notice the whirlpool, which puzzled him.

According to his estimates, the water level remains stable, and the amount of water flowing in and out of the lake should not be too different, and the gap in the ditch is relatively large, so the undercurrent at the bottom of the lake is not small, and it cannot be the flow of black water, even if there is no whirlpool, it will not be without movement.

"Huh?" When he explored again, Wu Feng still didn't find it, and he guessed the undercurrent at the bottom of the lake, but in the center of the current, he saw a black bead.

What's even more surprising is that when he avoided the water bead space and enveloped the black beads, the black water flowing outside suddenly became stable...... (To be continued......)