Right now, the most important thing was how to enter the inner part of the altar and find this vicious beast and destroy it.

It was impossible to use brute force, and there were no traces of a formation on the altar. It seemed that a special method was needed to open the entrance.

As everyone was thinking hard, Lei Ao was in a daze, various thoughts flashing through his mind from time to time.

Vicious Beasts, Giant Beasts, Purple Phoenixes, Blood Knives, Tribes, Bloody Altars, "Battle", "Formation"...

At this moment, his mind was in a mess as he felt that all of these matters were closely related to him, and all of these things were caused by the purple phoenix and the blood blade.

He had already experienced the power of these two, but he still didn't know where they came from. Now, they were bringing out the ruins from countless years ago, and the broken designs on the altar were purple phoenixes.

The giant blade on the sculpture was no different from a blood blade. What was going on? Countless years ago, which tribe established this tribe here?

What relationship did the purple phoenix and the blood blade have with this tribe? Who was the statue of that giant warrior with the bloody knife in his hand?!

One by one, these questions bothered Lei Ao. It was as if there was an invisible thread connecting these questions together, but no matter how he thought about it, he could not come up with an answer.

Just as he was lost in thought, a chill suddenly came from his side. He quickly turned his head and found Bluesea glaring at him in anger.

Before he could say anything, the other party had already sent a sound transmission to him. What should we do now? "

"Eh? What decision? " Lei Ao was confused, he didn't understand why she would hide the conversation from others.

"You …" Bluesea said angrily, "Stop playing dumb. Don't think that I do not know. The key to open the altar is with you."

"Hey, hey, this is my first time here like you. Since when did you have a key?"

The more he listened, the more Lei Ao became confused.

"Do you really not know or are you just faking it? I'm sure that the key to opening the altar is your blade. Both of them are exactly the same size as the knife-shaped groove above the altar."

Hearing Lan Hai's words, Lei Ao immediately came to his senses. There were a total of eight patterns on the altar, of which seven were in the shape of beasts. Only one of them was in the human form.

Whether it was a humanoid or beast shaped design, although incomplete, they were both painted with a certain kind of pigment. The only exception was the knife in the hand of the humanoid design.

The knife was not drawn on the altar, but was carved on the altar. It was divided into seven parts, which were exactly the same thickness as the blood knife and about the same length.

Previously, Lei Ao had been plagued by too many problems and hadn't thought that this would be the method to open the altar. Now, with Lan Hai's eyes reminding him, this key was indeed the blood-red blade in his hand.

Enter? Or not to enter?

If he didn't enter, he might be able to escape the Wilderness by returning through the same path. But in this way, everything they did became useless, and the sickly scholar's sacrifice of his life force became worthless.

If one entered, then Lei Ao, who had experienced the deep valleys, would understand that the area under the altar was as terrifying as the one in the deep valleys.

Taking a step back and spreading out like the sea and sky, he would at least have a slim chance of survival!

Compared to life and death, Lei Ao wanted to understand the relationship between the blood knife and the altar more. Thus, he made his decision almost without hesitation.

"Let's go, into the altar."

"Do you have a way to get in?" Everyone who was discussing was stunned. They didn't know that Lei Ao had sent a sound transmission to Lan Hai Tong.

Lei Ao took out the blood saber and said, "Don't ask me where this blood saber came from or how I obtained it. Before entering the Wilderness, I never thought that this saber would be related to the great destruction."

Seeing that the knife in his hand was exactly the same as the knife carved on the altar, everyone was filled with questions.

He placed the blade in the groove on the altar and lightly pressed it. It was like a precise mechanism. The moment the blood blade and the groove came into contact, it began to emit a blood-red glow.

Immediately after, the word "battle" in the center of the altar split open from eight directions, revealing a hole.

The cave entrance was very dark, and the bottom could not be seen. The moment they opened the entrance, everyone felt an extremely vicious aura blowing from below.

Recalling the message left by the Senior Immortal, he was probably hurt by this aura. Everyone quickly left the altar in shock, leaving only Lei Ao on the altar, who had yet to retrieve his blood blade.

The aura of a giant beast!

Lei Ao's expression changed as the question in his mind became clear. This aura was exactly the same as the giant beast in the deep valley, but it was even more savage than the giant beast.

"Quickly leave the altar." Bluesea's eyes shot out and formed an ice wall in front of Lei Ao. However, once it came into contact with that aura, it was easily melted into a puddle of snow.

A violent aura and brutal killing intent formed a huge monster head in front of Lei Ao. It opened its mouth and bit down at him, as if it wanted to swallow him whole.

Damn, there's no time to run. Lei Ao knew that he couldn't be faster than his opponent. After all, that was only an aura.

"Come on, even the Abyss Beast can't kill me, what can a little aura do to me?"

Lei Ao roared out loud. Both of his hands quickly moved in front of his chest, and in the blink of an eye, the profound trajectory of his body formed a pentagram star formation, which flew towards the gigantic beast.

This was a move that he had secretly learned from watching the battle between the white clothed man and the huge beast in the deep valley back then. During the blade faction's three years of hard training, the number of times he had practiced hand seals was not less than practicing blade moves.

Half of Lei Ao's power had been drawn out by the five-colored star, which was emitting waves of golden light. The moment the savage behemoth's Qi came into contact with it, it turned into black smoke that drifted away.

"Just now... How did he do it? " Everyone looked at Lei Ao in a daze.

"Just how many secrets is this kid hiding?" Yi Zhen smiled wryly to himself. No wonder the Heavencraft Pavilion figured out that he was the only hope for this mission. It seemed like they weren't unreasonable.

"Lei Ao, what's an Abyss Beast?" Nangong Mengjun could hear some clues from Lei Ao's words.

"Vicious beasts." Lei Ao's lips twitched. After a long while, he sighed and said, "If this is the opportunity that the Pavilion of Heavenly Secrets deduced, then our mission this time will be useless."

"Why? Do you know something? " — — Zhen Zhen asked.

"I guess so. I never thought that it would have something to do with the Great Destruction."

Lei Ao said: "Before I entered the blade faction, I went to a terrifying place. There was a fierce beast locked in there, and because I didn't cultivate at that time, I couldn't judge its strength."

"What about now?"

"I still can't tell." Lei Ao shook his head, looked at the sickly scholar, and said, "Its power is beyond our imagination. The strongest I've seen is the sickly scholar, but compared to that fierce beast, it's like the difference between a mortal and an immortal."

"Could it be …" There is also a fierce beast under this altar? " Everyone was astonished. After the sickly scholar had burned his Source energy, his strength had already surpassed that of the Immortal Cultivation World. Yet, he was still unable to compete with the vicious beasts.

"There must be. The only creatures that can emit this kind of aura are vicious beasts, and this one is even more savage than the one I've seen before."

Lei Ao's face was solemn as he said, "If the opportunity is a vicious beast, then forget about us, it's impossible to kill it. Even if we can, it's useless because there's more than one vicious beast."

Yi Zhen said, "No matter what, we have to go in and take a look. Although there are more than one berserk beast, but it is possible that only this berserk beast is the opportunity to cause great destruction."

"Then let's go."

Lei Ao knew that he couldn't change everyone's opinion, and he didn't want to talk about his experiences in the deep gorge. After digging out the blood blade from the groove, he jumped off the altar.

Everyone looked at each other, before jumping off after Lei Ao. At this point, there was no turning back.

The altar was at least a hundred thousand feet deep into the ground. There was a different kind of heavenly passage inside. After everyone reached the bottom, they realized that there was a long passage in front of them.

The passageway was about five Zhang wide, and the walls on both sides were inlaid with a huge Night Pearl at intervals, making the passageway as bright as day. But even with the light, the end of the passage was dark.

As he followed Lei Ao, he would occasionally hear the roars of berserk beasts. It sounded like they were very far away, yet they seemed to be right in front of him. The killing intent that penetrated his primordial spirit caused everyone's hearts to turn cold.