Wan Peng's spiritual consciousness had already touched the bottom of the lake at this time. Wherever the spiritual consciousness went, it was flat, without any signs of rocks or ditches. He could feel a soft layer of floating sand and mud on the surface, and then it didn't penetrate much downward, it was a hard substance that could isolate spiritual consciousness.

Wan Peng went downstream again, reached the bottom layer, drove the spiritual power, centered on him, and exhaled a piece of floating sand and mud, revealing the rocks below. Shielded from the light of the wall of fire, the rocks were pale blue, about a foot square, each one the size of the rock, densely embedded in the bottom of the lake. In particular, there are some strange patterns on the surface of each rock, and any two adjacent pieces between the perfect lines must be artificially deliberately built.

This lake is really weird!

Since this formation covers almost the entire bottom of the lake, it is impossible to peek at the whole picture from Wan Peng's current angle, so it is not easy to analyze its specific role. Wan Peng tried to input spiritual power, and his spiritual power actually spread along these formation lines, but he didn't get any feedback. If a formation is in operation, it will form its own system, and it is difficult for external spiritual power to penetrate in this way. Is this formation broken?

If according to the previous speculation, this lake and this formation are to prevent the aura from being exposed, it is really possible. Part of the aura emanating from the island can be used to drive this formation, and after the formation is running, it will maintain the aura on the island within a controllable range, forming a natural balance. And if you want to let the aura leak out, you only need to destroy this formation. And with such a large formation, it will indeed take a lot of effort to destroy it, and it is even possible that in the process of destruction, there will be a situation where the lake water will churn for several days.

Wan Peng didn't stay here for long, and swam directly towards the island in the center. Now that he is a Jindan cultivator, he is relatively comfortable in the water, and with the nourishment of spiritual power, he does not need to go outside for ventilation. Therefore, Yi Qian and the others saw that Wan Peng never came up again, and the water surface in the middle did not turn slightly from the bottom to the top, and a trace of worry involuntarily grew in their hearts.

Approaching the island in the middle of the lake, the aura felt in the water has indeed become rich. And from the underwater point of view, an island in the lake is also from the top down, like a single pillar erected, although the part that emerges from the water is no different from the land, but the underwater part, after ten zhang, but also becomes a bluestone structure, dense textures. Some long-standing aquatic plants and molluscs have inhabited the area, but they have not changed their natural form.

Wan Peng tried to input spiritual power into the formation pattern of this stone pillar, and with a soft sound, his spiritual power was bounced back. The formation on this island continued to operate, and his own spiritual power could not penetrate it.

Along the pillar, Wan Peng continued to swim down, until he was almost at the end, but he felt some subtle changes in the water flow around him. He allowed himself to be still in the water so as not to cause water fluctuations, and then carefully judged the direction of the current. After a while, he turned slightly and swam towards the part where the stone joint met the bottom of the lake.

A clump of aquatic weeds was pulled, and a hole of about three feet appeared at the base of the stone pillar. It is from here that the water flows. Wan Peng hesitated for a moment, first used his spiritual sense to make a simple detection, and then followed the current and swam directly into it.

At first, the cave was very narrow, and it could only accommodate about one person, and after swimming more than ten zhang, a faint light appeared in front of it. Wan Peng sped up, and in a few breaths, he came out of the water with a bang.

Where he was a square pool, about the size of the bluestone at the bottom of the lake. In the field of vision, there is a stone room, there are no furnishings in it, only an incense case, which seems to be carved directly from a whole piece of bluestone, and there is an emerald green stone on the incense table, which is shining with a faint light.

Around his square pool, there was a rather complex formation, which was still in motion. This formation makes the top of the square pool have a layer of colorful film, and even half of the water below cannot penetrate it, keeping the room from being flooded.

Wan Peng came out of the water, and the film actually had no effect on people. While admiring the exquisite design, he still walked in front of the incense case and carefully observed the situation of the incense case.

As he thought, the incense case was densely covered with formation patterns, directly connecting with the floor of the room. Because it is carved in stone, the yin and yang carving method has formed a three-dimensional formation effect, and if you want to see what is going on from the surface alone, with Wanpeng's current ability, you can't reach it at all. And around this incense case, the aura is extremely strong, and it is even said that if Wan Peng does not practice the aura exhalation, there will be aura that will drill into his body.

"If you cultivate in this place, it will really get twice the result with half the effort. Liyang seemed to have woken up, and muttered in Wan Peng's inner world, "Could it be that this is a place for people to cultivate?"

Wan Peng shook his head, "If it's really Qing Xiu, there will always be some facilities for daily use." I think it's more like a purpose-built hideaway. You think, we are coincidental to find this entrance, if it is an ordinary person, not to mention that this lake is so deep, it is easy to be dangerous, just the size of this entrance, without a target, to find it is like looking for a needle in a haystack. ”

"However, this place, has the Space Administration Bureau and the Purple Mansion never been discovered, or has the research here been abandoned for some reason?" Liyang asked the question that Wan Peng was also thinking about. If this is really the only place for the Purple Mansion to pass outward, there is no reason why they should not conduct basic research, at least, they will find anomalies at the bottom of the lake.

"Maybe they know, at least they know that there is a formation at the bottom of the lake. However, in the Purple Mansion, unlike in the cultivator realm, the understanding of the formation is much shallow. At the same time, this was originally the confidential place of the Purple Mansion, and these secrets must naturally be kept and not spread outside. Wait until you go up and ask Yi Qian, you may know. I think this stone is more interesting now. ”

Wan Peng's eyes looked at the emerald green stone, and when his hand reached forward, the aura he could feel was even more intense. "Maybe that's where the aura comes from. If we take it away......"

Before Wan Peng finished speaking, Liyang immediately reminded, "You have to be careful." I always feel that this thing is just here, and there should always be security protection. ”

Wan Peng took a deep breath, "Try it." With that, he stretched out his arm, and after his hand swiped it, the emerald green stone was directly accepted by him. The whole room seemed to be calm as usual, and nothing changed. He didn't dare to move, and after making sure that there was no danger again, he walked quickly to the square pool and jumped straight in.

A few times when he rushed in and out of the entrance, and was about to return to the water, Wan Peng suddenly exclaimed, not good.

All the floating sand and mud at the bottom of the lake floated up at once, and the cyan stone slabs were actually broken into fist-sized stones, floating in the water and rotating around the central stone pillar, forming a whirlpool in the blink of an eye. At the bottom of the lake, a red light also suddenly appeared, and under the cyan stone slab, a huge red formation pattern began to appear.

The oppressive aura exuded by this formation made only two words jump out of Wan Peng's mind, run!

Before he used his spiritual power, Wan Peng felt that his whole body was stagnant. In his field of vision, everything he saw froze. The chill felt all around him was even stronger, and the wall of fire that was already almost to the limit exploded to smithereens.

Almost at the same time, the entire lake froze into ice, and Wan Peng was trapped in it, as if surrounded by a huge amber.

Above the water, almost instantly, the lake that used to be rippling blue waves has now become an ice field. There was a slight chill on the ice, and Yi Qian, who witnessed this change, couldn't help but shiver.

This...... This is......

In his impression, although it was said that this place was extremely mysterious, he had never heard of it or seen such a record in historical materials. He walked quickly to the edge of the lake and touched the ice with his hand, which was bitterly cold, and seemed to be colder than ordinary ice. With enough strength, he smashed down with a punch, and the ice surface did not move at all, but the power that fed back made his own arm sore.

It's not like ordinary ice, and it's much thicker than you think!

Could it be another natural disaster? Or is there some special method that Wan Peng used to fight something? But the problem is that Wan Peng himself has not come up since he went down, and it is very likely that he is still in it.

The body is frozen in ice, and if it is short, it can survive, but if it is in such a large lake, outsiders can't even find it, and I am afraid that it is dangerous.

Yi Qian slowly stood up, his face was solemn, and he stretched out his hand to call a subordinate. "Send someone to search the ice and see if there is any place where you can find the entrance to break the ice. ”

...............................................................................................................

Purple Mansion Palace.

The King of the Purple Mansion looked displeased, as if he was talking to himself, "Defeat, defeat, all defeat, how did our battle become like this!"

The leader of the demon army said, "Great King. We have been in hiding for many years, we can't train on a large scale, and our tactics have lost sperm, and now the aura tower system has not been completed, and the aura is still limited, and the play is insufficient. You know that. ”

The King of the Purple Mansion said, "Yes, of course I do. I just wonder why there are so many battlefields, and none of them have won!"

As soon as he finished speaking, a person stumbled in outside, "Report...... King, the war situation is urgent. ”

The King of the Purple Mansion said angrily, "Report it, report it, say, where is the defeat?"

The man swallowed vigorously and opened his chapped lips, "King, it's not that we lost the battle, we won the battle, we won the battle!"

"Victory?" As soon as these words came out, the eyes of the King of the Purple Mansion and the leader of the demon army lit up, "Tell me quickly, where is the victory?"