As soon as Su Zhen's words came out, everyone suddenly fell silent, and they all turned their heads to look at the river that was slowly flowing from the foot of the mountain to the top of the mountain, with a thoughtful look in their eyes.

It is common knowledge in nature for water to flow to a low place, but in the cultivation realm, it can only be cultivated enough, and it is possible to turn over the river and the sea, and the sky and the earth will collapse.

The backflow of this river may be quite shocking to the low-level monks, but for them who are well-informed and have great powers, there is really nothing surprising about it.

Therefore, these Yuan Infant Monks only took a few more glances at the empty river when they first came here, and they did not think about why the river flowed backwards, nor did they have any interest in knowing.

But now, after Su Zhen's question, everyone thought about it together, not because they were interested in the counterflow of the empty river, but because Su Zhen's words were worthy of everyone's attention.

After all, Su Zhen's name is not only widely spread in the Yuehe Sect, most of the monks of the four major sects of the Chushui Kingdom are like thunder, and even many sects in the Nantai Continent have been known for a long time.

The so-called no-void scholar under the fame, even if there are many Yuan Infant monks who have not seen Su Zhen himself, as long as they hear his name, they will look solemn.

A moment later, a woman in a purple dress stood in the northern area, her beautiful eyes flowing, and a crisp and pleasant sound like a lark came out.

"Dare to ask Su Daoyou, why does this empty river flow backwards?"

Su Zhen saw that everyone's eyes were condensed, and he didn't sell it, with a breezy smile on his face, and said lightly.

"The river flows backwards, contrary to common sense, but if it is interfered with by spiritual power or formation power, there is nothing surprising about this matter, but this empty river is not a small stream or a small river, but a large river that runs through the Grass Spirit Valley, stretching for thousands of miles, and ordinary formations can't make this river completely reverse the current. ”

"What does Su Daoyou mean is that this river is disturbed by the space array, and there is a situation of countercurrent?"

The woman in the purple dress who had just spoken, her beautiful eyes flashed with a hint of brilliance, her lips opened slightly, and the melodious words came out again.

"What Fairy Ziling said is right, this Grass Spirit Valley is a space that has been opened up by people with great magical powers, and if this kind of space wants to be stable for a long time, it is necessary to arrange a large space array. ”

Su Zhen smiled at the woman in the purple dress and nodded, and then said slowly.

"The Space Array has absolute control over everything in the space, such as mountains, rivers and rivers, so only the Space Array can make the Empty River flow backwards. ”

This matter is not known to ordinary monks, only monks who are proficient in the way of formation and have a certain understanding of spatial formation.

Duan Tiangu smiled and nodded, with his research on the formation method, he thought of this place at the first glance when he saw the reverse current of the Empty River.

However, not all the monks here have studied the formation, and most of the monks only understood the reason for the reverse flow of the empty river after listening to Su Zhen's words.

"Su Daoyou, although the old man doesn't understand the formation, he also knows that the formation is a dead thing, and no one controls the formation, how can the empty river go against the current?"

The blonde old man, who had just quarreled with Duan Tian, asked bluntly with a hint of suspicion on his face.

When Su Zhen heard these words, a hint of an intriguing smile appeared on his face, he shook his head, and did not speak.

But Duan Tiangu laughed and said sarcastically.

"Yang Chengzi, you are really ignorant, although the formation is a dead thing, it does not necessarily need to be controlled by someone, as long as there is a divine thought left in the formation and certain conditions are met, the formation can operate on its own. ”

"You ......"

When the blonde old man heard these words, his eyes burst with anger, and he suddenly felt that his face was hot, as if he had been slapped invisibly.

"What Master Zun said is right, as long as a certain condition is reached, the space array will be urged, causing the empty river to flow backwards, and that condition is the Zhenling Pillar. ”

Su Zhen took Duan Tiangu's words and said loudly.

After speaking, everyone turned their heads to look at the sky-supporting crystal pillar in the distance, with a thoughtful look in their eyes.

The spirit pillar is left by Shui Shenqiu, but no one knows where Shui Shenqiu got the spirit pillar, only knows that this town spirit pillar has the effect of stabilizing the space, and now that I think about it, the town spirit pillar is not stable in space, but the space array here.

"Su Daoyou, dare to ask what does this empty river reverse flow have to do with the Cave Mansion of the Lord of the Grass Spirit Valley?"

Standing in the western region, a woman in fiery red soft armor asked softly with a soft smile on her face.

Su Zhen looked at the woman and smiled slightly, and said lightly.

"Soft Fire Fairy, where do you see where the water of this empty river has gone?"

The woman in the fiery red soft armor was the soft fire fairy, she saw Su Zhen's smile like a spring breeze, her face immediately turned red, and she said softly.

"Naturally, through that whirlpool, it flows to the lake below. ”

"My Yuehe Sect Shui Deep Autumn Ancestor is a far-sighted person, she didn't leave the Zhenling Pillar back then just to stabilize the space, according to Su's guess, the Zhenling Pillar should be the key to open the cave. ”

Su Zhen looked confident, turned his head and glanced at all the monks here, and said Lang Lang.

"The counter-current of the empty river is only the process of opening, and when all the water of the river has passed through the vortex and flows into the lake below, the cave will manifest itself. ”

Everyone couldn't help but fall silent when they heard these words, and then looked at Su Zhen's radiant spirit, his eyes shimmering, and he looked like he was full of bamboo, as if what he said just now was not speculation, but a true fact.

After a while, the blonde old man broke the silence and said in a salty and nonchalant voice.

"Su Daoyou, speaking of which, this matter is just your speculation, if all the river water flows into the vortex by then, and the cave has not yet appeared, what will happen?"

Duan Tiangu saw that the blonde old man deliberately sang the opposite, and raised his hand to point at the blonde old man and scold, but this time Su Zhen stopped him.

"The map left by my Yuehe Sect Shui Shenqiu Ancestor will never go wrong, there is no need to doubt that the cave is here, and the abnormality of this place lies in the reverse flow of the empty river, as well as the lake under the lake, and the bamboo island. ”

The confidence on Su Zhen's face was not shaken in the slightest by the blonde old man's questioning, but the indifference he revealed when he spoke made people feel as if he was stating a fact, not just a guess.

"You must know that all the unusual things that happen in the world do not happen for no reason, Su Mou heard those juniors say before, the reverse flow of the empty river happened three days ago, so it is very consistent with the time when the Zhenling Pillar appeared. ”

Su Zhen withdrew his gaze from the distance, landed on the bamboo island under the lake, and continued.

"Since the cave is here, and the end of the air river is here, combined with the scene of the lake water pouring into the lake below, plus there is only one bamboo island here, Su can conclude that the cave is on that bamboo island. ”

After the words fell, all the monks here looked shocked, and their eyes were full of fire when they looked at the bamboo island below.

"The old man didn't see anything strange about Bamboo Island. ”

Although the blonde old man also glanced at the bamboo island a few times, but after a while, he said lukewarmly.

"Yang Chengzi Daoyou, Su said before that the Zhenling Pillar is the key to opening the cave, and the countercurrent of the empty river is the process of opening the cave. ”

Su Zhen did not show the slightest displeasure because of the blonde old man's deliberate trouble, on the contrary, he explained to the blonde old man quite graciously.

After listening to Su Zhen's remarks, the other monks also had their own judgments in their hearts, after all, they were all Yuan Infant Stage monks, and this matter only needed to be carefully pondered to distinguish the true from the false.

After thinking about it, many monks couldn't help but cast all kinds of eyes on Su Zhen, some admired, some admired, some jealous, and even more jealous.

"Su Daoyou, but the speed of this empty river countercurrent is a little too slow, if it is at this rate, it will take at least a few years for all the water of the empty river to flow into the lake below. ”

The beautiful eyes of the woman in the purple dress were shining, and she looked at Su Zhen and said softly.

As soon as these words came out, the other monks also chimed in, and they could not wait a few years.

"Fellow Daoists, as long as everyone works together, why is it difficult to make this empty river flow faster. ”

Su Zhen smiled slightly, glanced at everyone, and said loudly.

"Oh, it turns out that we can interfere with the counterflow of this river, then this matter is indeed not difficult, there is a magic weapon under it, although it cannot be loaded with this river, but it can hold a hundred miles of river water. ”

A middle-aged scribe from the same camp as the woman in the purple dress hurriedly spoke.

"The old man also has a magic weapon, although it is not as powerful as Zeng Daoyou's magic weapon, which can hold the river water, but it can also speed up the flow of the river a lot. ”

An old man in a green robe in the western region spoke after him.

As these two people spoke, many monks immediately said that they had magic weapons or magical powers, which could speed up the speed of the Empty River against the current.

"Senior Brother Su, now the speed of the countercurrent of the Empty River has accelerated, but the hole at the bottom of this lake is only so big, I'm afraid it ......."

This time, Qu Feng said softly on the side.

"Senior Brother Qu don't worry, leave this matter to Senior Brother. ”

As he spoke, he turned into a silver light and headed straight for the whirlpool.

The rest of the monks looked sideways, and they knew that the suction force of the vortex was very strong, and even above the vortex they were a little unsteady.

But they saw Su Zhen walking on the ground in the whirlpool, almost unaffected, his expression was indifferent, and his steps were relaxed, as if he was walking in his own back garden.

Everywhere he passed, the lake seemed to have eyes, and they all retreated, and it was difficult to stain Su Zhen's clothes.

It didn't take long for him to reach the edge of the hole at the bottom of the lake, where he sat down cross-legged, his hands pinching out the seal at a speed that was difficult for ordinary people to see, and striking around, looking like he was actually cracking the formation.

Everyone here knows that there is an invisible barrier at the bottom of the lake, and that barrier is the formation that blocks the lake.

If the diaphragm is broken, or the hole is enlarged, then the speed of the cave will definitely be much faster.

It's easy to say, but only a handful of people can do it.

There are many monks in each sect who are good at formations, but they don't have the confidence to expand that hole, after all, that formation is not the formation of the current cultivation realm, but a kind of ancient formation.

Duan Tiangu saw that his disciple was so outstanding, he naturally smiled, his expression was extremely proud, and even the many monks of the Moon River Sect felt that their faces were quite bright.

"Fellow Daoists, now that Daoyou Su is breaking the formation, let's show our magic powers and bring the water of the empty river over. ”

The old man in the green robe, who had spoken before, stepped forward, hugged his fists towards everyone, and said loudly.

After speaking, three people from each of the four major sects flew out and flew towards the lower reaches of the empty river with the old man in the green robe.

Not long after, a burst of magic light rose to the sky in the lower reaches of the Empty River, and everyone on the lake immediately saw that the speed of the Empty River was significantly faster than ten times, and it seemed that it would not be long before this mountaintop lake would be filled.

For a moment, everyone's eyes focused on the figure under the whirlpool.