After receiving the guidance of the crystal skull, Lin Jiufeng immediately thought of using the chaos to obtain its body.

"I've long felt that it's strange. Since we've already discovered the news of the Well of Heaven Ascension and the main force has been mobilized, why is there no movement from the crystal skeletons at all?"

"The five-colored skeleton wants to enter and return to the mortal realm. The crystal skeletons definitely want to return to the mortal realm even more."

"But now, there are only five-colored skeletons here and not a single crystal skeleton."

"This is abnormal."

"Just now, when I saw the actions of the level nine skeletons from the four ancient cities seeking death, I immediately guessed it."

"The crystal skeletons behind the four ancient cities must have come along too. That's why the five-colored skeletons have the confidence to explore this ancient city and to provoke the sleeping crystal skeletons inside."

The crystal skull continued. It analyzed the matter and came to a conclusion that was simply too correct.

"Therefore, when the battle begins, we will take advantage of the chaos and enter the ancient city to obtain your body," Lin Jiufeng said solemnly.

"If it's too dangerous, just forget about it. After all, it's useless to others. They can't absorb the energy in my body," the crystal skull said.

"Let's see how the situation is. If it's really dangerous, I'll seek another opportunity. But we still have to obtain your body and then find the Well of Heaven Ascension regardless of the situation," Lin Jiufeng said.

His motive for entering the Death Realm was very clear. He wanted to revive and enter the mortal realm again.

What was he going to do after entering the mortal realm?

To resist the Seven Races of the Ancient Age.

The Seven Races of the Ancient Age were very powerful. Lin Jiufeng needed to rope in all the forces that he could rope in.

Among them, the crystal skull was a powerful force.

Find its body and help it recover. Give it some time and it would be able to return to its peak.

The crystal skeleton was a powerhouse that far exceeded the ninth heaven of the Immortal King Realm.

This would be a great help when dealing with the Seven Races of the Ancient Age. At its peak, it was definitely stronger than the current Lin Jiufeng.

Hence, Lin Jiufeng was determined to help the crystal skull obtain its body.

On this side, Lin Jiufeng was hiding behind, waiting for an opportunity to make a move.

But the four level nine skeletons in front pushed open the door of the ancient city together.

Rumble!

The door that hadn't been opened for 20,000 years was pushed open at this moment. It was huge and filled with dust and rust, emitting an ancient and simple aura.

In the empty ancient city, it was silent. The four skeletons walked in. The division of labor was clear, each of them was in charge of guarding one direction.

Although they were confident and bragging before entering, it seemed that they were still vigilant.

After all, their opponents were crystal skeletons. And they were even crystal skeletons from 20,000 years ago.

Although they were quite badly injured back then, from the looks of it now, no one could tell what their exact situation was.

It was better to be on guard.

But at this moment, there was a movement in the ancient city.

Right at this moment, the thousand-plus five-colored skeletons outside the ancient city all sensed a shocking might. They all trembled in fear.

Boom!

In the ancient city, an ancient mirror rose and bloomed with auspicious lights. This light protected the entire ancient city as if it had melted into the void.

Under the auspicious lights, the ancient city looked dreamlike, as if it didn't belong to this world.

The four skeletons that entered the ancient city were shocked. They hurriedly gathered together, not caring about the grudges from before. The important thing now was to save themselves.

"Damn it, have the crystal skeletons recovered?" The white tiger skeleton asked worriedly.

"I don't know, but something must have changed. We have to wait and see. All other matters can wait for now." The five-colored skeleton from the Giant City calmed down and observed carefully. It didn't see much danger. Then, it spoke.

But at the same time, outside the ancient city, a dragon's roar came from the distance. It was very huge, and the dragon's roar shook the heavens.

Dong dong dong!

The ground was trembling. The scene was very terrifying.

The mountains were surging like there was a magnificent army charging here.

The wind swept the clouds as a huge creature arrived.

Everyone looked over together and saw a bone dragon roaring on a distant mountain range. Then, it stepped on the ground and ran over, making loud bangs as its feet stepped on the ground. Then, it swam into the air and rushed over.

The bone dragon had an extremely terrifying aura. At this moment, dragon patterns drooped down from the bone skeleton. They flickered with a dazzling light as if a real True Dragon had been resurrected.

"Dragon?"

"Is it really a dragon or a bone dragon?"

"There's actually a dragon in the Death Realm, and it seems to be very powerful. It's at level nine of the Five-Colored Skeleton Realm, right?"

"No, it's more powerful than that. Its aura is terrifying, far exceeding the level nine skeletons that I know of."

"Then, is it a crystal skeleton?"

"We can't rule out that it is."

"Are you lying? If it's a crystal skeleton, why didn't it change at all? Its soul flame is still five-colored."

"Look carefully. In the depths of its soul flame, there's a crystal color reflecting. It's very terrifying, which means that it has already stepped into the threshold of the Crystal Skeleton Realm."

More than a thousand five-colored skeletons of the four ancient cities were discussing. They observed in detail, analyzing the bone dragon very clearly.

Although the bone dragon wasn't fully at the Crystal Skeleton Realm yet, it was still far superior to the level nine five-colored skeletons.

According to this division, it should be at the half-step Crystal Skeleton Realm.

Roar!

At this moment, the bone dragon came close. In the air, a loud roar sounded.

In an instant, the mountains and rivers trembled. The sun and moon lost their luster. A violent wave swept through the entire land. This was a kind of roar of the Great Dao!

It directly sent the five-colored skeletons outside the ancient city flying. It directly rushed into the ancient city and flicked its tail, shattering the ancient mirror and the thousand auspicious lights covering the ancient city.

This change caught many people off guard.

It was the same for Lin Jiufeng. He retreated a distance and avoided being affected by the bone dragon. He said in a low voice, "This bone dragon is too powerful. Previously, I personally witnessed it charging into the depths of the Death Realm from the Yin River."

"It's interfering at such a moment, there's going to be a good show," the crystal skull said with anticipation.

"This situation is quite good. Only by muddling the waters will we have a chance to fish in troubled waters." Lin Jiufeng stared at the ancient city in front of him, waiting for the situation to change.

At this moment, in the distant mountains, a crystal skeleton executed an Aspect Body ancient technique. It directly expanded, and a terrifying aura spread out without hiding.

At this moment, its body pressed against the nine heavens and stepped on the nine netherworlds. Its entire body erupted with boundless divine light!

A real crystal skeleton appeared.

It wasn't incomplete like the crystal skull, nor was it a half-step crystal skeleton like the bone dragon.

It was a true crystal skeleton.

That terrifying aura erupted and instantly shrouded the world. Everything began to wither.

The aura was dark like a lead cloud that shrouded this area.

This crystal skeleton towered into the clouds at this moment, revealing its true body. The aura exuded from its body wasn't the kind of aura of the recent era but was similar to that of the ancient era.

The people of every era had the characteristics of that specific era, these characteristics couldn't be hidden. When the crystal skeleton appeared, such characteristics were extremely conspicuous.

And at this moment, this crystal skeleton displayed its terrifying aura that hadn't weakened in the past. An aura of looking down on the world, it was majestic and terrifying.

It let out a thunderous voice. "Bone Dragon, you have crossed the line. You shouldn't have come here!"

The bone dragon that had entered the ancient city let out a roar that shook the sky. Its dragon aura exploded, directly shattering the lead-like dark clouds and letting the sunlight refract down.

"The owner of this ancient city is someone that I must kill. Even if they become skeletons, they still deserve to die!" The bone dragon said coldly.

It floated in the ancient city. Underneath it were four level nine five-colored skeletons.

The five-colored skeletons were originally very powerful, especially when they were at the ninth level, which was equivalent to the ninth heaven of the Immortal King Realm.

But now, under the pressure of the bone dragon, they were trembling and resisting with difficulty. They wanted to escape, but they were unable to break free.

The bone dragon pressed down with one claw and crushed them until their bones cracked.

The gap between a level nine five-colored skeleton and this bone dragon was really too big.

"If you have a grudge with the owner of the ancient city, that's your problem. It has nothing to do with us. We only want their soul flames. There's no conflict between us, don't stir up trouble." The huge crystal skeleton was also aggressive and didn't retreat.

But who knew that the bone dragon wouldn't listen at all? It suddenly reached out and grabbed the four level nine five-colored skeletons with its dragon claws. It said coldly, "Didn't you guys want to kill the crystal skeletons in this city? I'll fulfill your wish. Come out now."

The bone dragon suddenly smashed the four level nine skeletons towards a certain part of the ancient city.

Boom!

In an instant, the earth shook and the mountains shook. The ground of the ancient city directly split open, and a large area of houses collapsed. Terrifying energy rushed out from the underground, conflicting with the huge energy of the bone dragon. These two energies fought against each other, squeezing the four skeletons until they screamed endlessly.

"How dare you!"

"Insolent! You actually dare to use our people to seduce the crystal skeletons of this city out!"

"You're seeking death!"

At this moment, the crystal skeletons of the four ancient cities all shouted angrily. They no longer hid. They rushed into the ancient city together, wanting to save the four level nine five-colored skeletons.