The two of them walked for about half an hour. The closer they got to noon, the heavier the Yin Qi in the valley became. The clouds in the sky shrouded the sky, and there was no sun. The ground was full of crimson yellow spring flowers that looked like blood. It looked extremely strange.

“What heavy Yin Qi …”

Xiao Chen’s eyebrows furrowed slightly. Even he felt a little uncomfortable this time. The Yin Qi here was much heavier than Taiyin Palace’s. No wonder the birds in the valley could not fly all year round, and the beasts could only hide. Only the Yellow Springs Flower, which filled the valley, liked this Yin Qi.

Fairy Red Butterfly said, “The Yin Qi here is considered light. Once inside, the Yin Qi will become heavier. If it weren’t for the arrival of the ‘Tidal Day’, no one would normally come here …”

After saying that, she stopped and observed the surroundings. After confirming that there was no one around, she continued walking and whispered, “The last tidal day was more than 300 years ago. That time, Baimei Shangren, the Longevity Sect Master, and a few others were here. We were here before, but our cultivation was still too low and we were not able to enter in the end …”

“And then? You’ve never been here again.” Xiao Chen looked into the distance and asked.

“No …”

Fairy Red Butterfly shook her head. He looked at the valley in front of him and said, “Later on, when everyone’s cultivation broke through, We did it again, However, before the tidal day arrived, the aura of the Underworld shrouded us. In the end, we barely managed to pass through the first layer. The restrictions on the second layer were too heavy. When we resisted the aura of the Underworld, we had already consumed too much energy and were unable to pass through the second layer. Therefore, we could only retreat from the second layer. Otherwise, we would all die inside … ”

At this point, He stopped at the side of the road, He turned to look at Xiao Chen and said, ‘”Acheron Valley’s Underworld aura dissipates every few hundred years. That day, we call it the’ Tidal Day ‘. After the Underworld aura dissipates, it will last for about a month. It is called the’ Tidal Moon ‘. No matter what happens, we must evacuate before the end of the Tidal Moon. Otherwise, everyone will die inside, without exception.”

“Tide …”

Xiao Chen focused and looked at the distant valley covered in layers of Yin Qi. He asked, “When is the Tidal Day this time?”

Fairy Red Butterfly said, “Ten days from now, that is, on the fifteenth day of this month, on the full moon night, when the Yin Qi is the heaviest, once the aura of the Underworld dissipates, everyone who comes to Acheron Valley will definitely enter. We have to enter before the tidal day arrives, that is, before they arrive …”

“That’s why you went to look for the Yin Ghost King, wanting him to barely block this Underworld aura for you” Xiao Chen said indifferently.

“That’s right.”

Fairy Red Butterfly nodded and looked at him, “But I still can’t trust the Yin Ghost King. Last month, this person killed more than a hundred people in our sect …”

“Oh?”

Xiao Chen looked at her and said, “Then why does Fairy trust I am?”

Fairy Red Butterfly smiled faintly. “I think Childe, At the very least, it was more reliable than the Yin Ghost King, But let me remind you, Although the tidal day is approaching and Acheron Valley’s Underworld aura has begun to fade away, Childe must not be careless. Especially when the Tidal Moon ends, we must retreat. Once the tidal wave ends, the Underworld aura will once again penetrate into the human world. Even the place we are currently in will be enveloped by an extremely heavy Underworld aura … ”

“I know …”

Xiao Chen’s voice was faint. He walked towards the valley in front of him. The two of them walked for about half an hour before arriving at a mountain stream. A waterfall rushed down from the mountain. Flying beads splashed jade, forming a deep pond below the mountain. Fairy Red Butterfly said, “Wait for them here.”

Along the way, the two of them saw quite a few other people. They must have come for Acheron Valley’s secrets as well. Once every few hundred years on Tidal Day, there would probably be a lot of people coming to Acheron Valley this time. This was especially true in a place like Hill of Illusory Ruins that was already in chaos. When the time came, everyone would have to fight over some treasures and they would definitely be stained with blood.

However, when the two of them arrived, they were cautious and did not let anyone notice. After waiting for a while under the mountain stream, a sword light descended and turned into a man with heavy Yin Qi. This person was the Longevity Sect Master.

Seeing him come, Fairy Red Butterfly smiled gently, “Why is there only the Longevity Sect Master? Where are Senior White-browed and the Ghost King?”

“I’m not with them …”

The Longevity Sect Master’s voice was slightly gloomy. As he spoke, his gaze landed on Xiao Chen. Fairy Red Butterfly smiled and said, “This Childe Xiao, the Longevity Sect Master must have seen him with the Dark Ghost King that day.”

“Yes, I have. However, I still have to remind you that the place you are going to next is not something an ordinary person can go to. If you regret it now, there is still time …”

The Longevity Sect Leader looked at Xiao Chen with a gloomy expression. Obviously, he would rather believe in the Yin Ghost King than an unknown kid.

“Thank you for reminding me, Sect Master. I will be careful …”

Xiao Chen looked at him and said indifferently. He didn’t say anything, but he thought to himself, I’ve even been to places like the Forbidden Area of Tomb of Gods and Demons. Do you still need to remind me of the dangers here?

Fairy Red Butterfly smiled and looked up the mountain stream. “The Ghost King and Baimei Shangren are here,” he smiled.

As soon as she finished speaking, a streak of azure sword light and a strand of black mist instantly landed in the valley, transforming into an Immortal Qi Daoist Qingyi and a terrifying person with an extremely heavy baleful aura.

These two were Baimei Shangren and the Dark Ghost King.

The Yin Ghost King’s bloody appearance was like a monster, and it was the most frightening. As for the Longevity Sect Master, his Yin Qi was heavy, and he did not seem to be a cultivator of the Immortal Dao.

As for Fairy Red Butterfly, she did not look like Fairy. Instead, she looked more like a peerless demonic woman who had confused all living beings. With just a single glance, she was capable of capturing the soul, causing people to be fascinated. Thus, of these people, only Baimei Shangren appeared to be the most normal.

“Little friend Xiao, you’re here …”

At this moment, Baimei Shangren walked up to Xiao Chen with a whisk in his hand and greeted him.

And Xiao Chen also felt that of these four people, only Baimei Shangren appeared to be the most reliable. He was just like Tomb of Gods and Demons, who he had met in Daoist Gui back then. However, he didn’t know if Daoist Gui and the others were still trapped in Tomb of Gods and Demons, and how powerful their current cultivation was …

“There’s no time to delay. Let’s go.”

The Longevity Sect Master’s Yin Qi was heavy. He took a few steps forward and looked ahead, saying, “That place is very far away. Even if it is a sword, it will take a day and night.”

In fact, Acheron Valley was very large, not just a valley. Especially the restriction inside. Once it entered, it would be like a secret realm, boundless and boundless.

Everyone rode their takeoff swords and immediately flew towards the other side of the mountain stream. Before they left, Xiao Chen glanced in the direction they were heading in. That night, Bai Luan also sent him news that Tai Yinsi’s master, Patriarch Guiyin, had caught up. No wonder he sensed someone behind him when he first entered Hill of Illusory Ruins.

“Childe Xiao, what’s wrong?”

Fairy Red Butterfly asked when she saw him looking back.

“No.” Xiao Chen turned around and didn’t look behind him. Presumably, Night Shade and the others were already in Acheron Valley.

The few of them sped along, and the people below could only feel a few powerful auras flashing past their heads. Before they could even raise their heads, no one could be seen.

“Just now … someone was riding a sword over?”

“What a strong aura …”

The tide was approaching, so there were many people coming to Acheron Valley this time. People from various sects or sects might not have loose people, but these people were mostly at the Harmonious Stage, as well as many cultivators who had yet to reach the Fourth Stage of Sainthood. There were even cultivators who had just transformed into spirits or even condensed their Nascent Soul. They all came to Acheron Valley this time.

In their eyes, people like Baimei Shangren, the Longevity Sect Master, the Dark Ghost King, and Fairy Red Butterfly were like immortals.

Of course, there were also some peerless experts among the people who came to Acheron Valley this time. Otherwise, Baimei Shangren and the others wouldn’t have to choose to venture in ten days before the tide arrived, in order to rush in before those people arrived.

At this moment, the further he flew, the more Xiao Chen could see traces of an ancient battle between Immortals and Devils. There were mountain peaks that had been flattened by a single sword strike, mountain ranges that had been cut apart, craters hundreds of feet deep that had been smashed into them, and some giant boulder formations that had been shattered … One could imagine the tragic battles that had taken place here in the past.

Everyone flew for a day and night. The next morning, they finally entered the depths of Acheron Valley. The aura of the Underworld had begun to permeate this place. It would take ten days for the Tidal Sun to completely dissipate the aura of the Underworld in Acheron Valley.

“This is what you call a quiet place?”

Xiao Chen looked at the Yellow Springs Flower that filled the valley. Compared to the outside, the Yellow Springs Flower here was filled with the aura of death. The black flower stamens seemed to warn everyone not to go any further. Anyone who approached them would be devoured by their souls.

“What? Are you afraid?”

The Longevity Sect Master looked at him and smiled gloomily, “If you regret it now, it’s still too late. Once the first layer of restrictions is broken, there will be no way out. Let me tell you clearly first, the restrictions inside will become more and more powerful. At that time, really, no one will be able to take care of anyone …”

“Since the Longevity Sect Master has already said so, then if Xiao doesn’t go in and take a look, wouldn’t it be in vain …”

Xiao Chen’s eyes were calm as he walked forward with his hands behind his back. As he approached the Yellow Springs Flowers, Fairy Red Butterfly stretched out his hand and said with a slightly nervous expression, “Childe, be careful … don’t approach the Yellow Springs Flowers. Their death aura will corrode you!”

“Death Qi …”

Xiao Chen’s eyes were still faint. Under the gazes of the few people behind him, he bent down and broke off a yellow spring flower. After the flower stalk was broken, a blood-like red juice actually flowed out from it. It looked very strange, but not long after, the flower withered in his hand.

“This …”

The rest of them were slightly surprised. How was this possible?

The Yellow Springs Flower here is tainted with an extremely heavy aura of the Underworld. Strangers are not allowed to get close to it, but after reaching his hand, why does it look like he has taken his life instead? Isn’t this too strange …