It has been months since Zhong Zihao came here. After he traveled through countless formations, he found a cave.

What's strange is that the demonic energy in this cave is amazingly rich, not worse than the tenth floor of the ancient martial arts Liuguang Tower. That's why he decided to retreat here and break through to the peak of the Void Realm in one fell swoop.

Compared with ordinary warriors, he has several more powers to comprehend, and it is becoming increasingly difficult to advance. According to his guess, the energy consumed by this breakthrough is much more than that of ordinary people who break through to the Immortal Realm.

"It's time to explore its secrets."

Zhong Zihao murmured to himself, and then relaxed his suppression of the Black Flame Demon Sword in his body. In an instant, a clear sword sounded, and the Black Flame Demon Sword broke through his body and flew over the void.

For some reason, he could feel the sound of the sword with joy, expectation, and even a strong sense of nostalgia.

In fact, when he first entered this cave, the magic sword was ready to move, as if he had been summoned to appear and see an old friend at first sight. If he hadn't been to retreat and practice, he wouldn't have been forced to suppress it until now.

Suddenly, the silver light in the cave was soaring, as if a bright moon appeared, illuminating every inch of the cave.

Zhong Zihao was slightly shocked, and his eyes followed the source of the light. He saw a transparent ball above the top of the cave, which exuded a magical power that intimidated the world. Even his soul power that reached the peak of the Immortal Realm could not resist it.

It can be seen from the naked eye that there was a black figure in the small ball that kept flipping, like a spiritual snake, like a dragon. As long as this figure twists the body, the Black Flame Demon Sword will vibrate at the same time, and the sound of the sword will become increasingly dense.

Immediately, the small ball shot out a golden light, about the thickness of the light. As soon as it appeared, it enveloped the Black Flame Demon Sword floating in the air.

"Click!"

In Zhong Zihao's unbelievable eyes, the transparent ball suddenly shattered, and a shocking pressure suddenly came to the audience.

"Bang!"

Without any preparation, he was immediately overturned by the pressure, but he knew in his heart that facing this unparalleled magic power, even if he had to resist with all his strength, it would be useless.

However, he was also a little confused. Facing the Chaos Pearl, which was invincible with the magic power, there was no reaction at all at this moment. It seemed that it was not inconsistent with this power?

Fortunately, the target of this magic power is obviously not him, otherwise a generation of demon king might have fallen here in ignorance today.

The black figure broke free from the shackles and turned into a stream of light and wandered in the cave. After flying around the cave for three rounds, it hid into the magic sword like a stream of blue smoke.

"Cang..."

The Black Flame Demon Sword trembled violently, and the sword body began to change slowly. After about a cup of tea, a black light flowed on the sword, and the black on it became deeper and nearly brighter.

In a moment, the magic sword danced on its own, and four swords were slashed against a stone wall on the cave. Four rays of light interlaced out, which happened to be a "well" shape.

"Boom!"

The stone wall kept shaking, and the entire cave was shaking, as if it would collapse at any time.

Then, the stone wall was hit by four sword lights, and four rays of light of different colors burst out, one black and one white, one green and one purple. The four rays became more and more dazzling, condensing into a light gate embedded in the stone wall.

At the same time, a vast and majestic ancient aura spread out from it, making people feel heart-pounding.

The ancient martial arts flowing light tower that had been silent in Zhong Zihao's body for a long time shook again. The vibration was more than a hundred times higher than when he just entered this canyon.

"drink!"

Zhong Zihao's face changed wildly, he shouted loudly, and used all his strength to suppress the vibration.

The situation is not clear at this moment. If the ancient martial arts Liuguang Tower is broken out, it is unknown what will happen, and he dare not take risks.

Fortunately, the vibration of the ancient tower was only for that moment. When the four lights on the stone wall disappeared, peace was restored.

Zhong Zihao was already sweating profusely and stood up tremblingly, and found that the light gate that had just flashed was flowing, like a vast starry sky, with countless light spots inside it emitting a faint light from time to time.

But he didn't dare to look at it too much, because just a moment when he stared at the light gate, an inexplicable force seemed to appear, driving him into it, and that force could affect his will, and with his firmness, he could not resist it for long.

"call out!"

After collecting the black figure and activate the light gate, the Black Flame Demon Sword seemed to have completed some mission, turned into a stream of light and escaped into Zhong Zihao's dantian again.

"ah!"

Zhong Zihao exclaimed, the danger just now was still in front of him. This strange magic sword was too terrifying. After this mutation, it returned to its body. Will it pose a threat to itself?

The majestic soul power surged. After he touched the Black Flame Demon Sword and learned some information from the latter, the expression on his face became extremely exciting.

"The peak artifact! Zhu? One of the four major war generals under the Demon Ancestor, Hei Yan turned out to be his sword!" Zhong Zihao exclaimed, because the news he had learned from the Demon Sword was too horrifying.

It turned out that the black shadow collected by the Black Flame Demon Sword just now was the weapon spirit it had lost for ten thousand years. The weapon spirit returned, and the magic sword also returned to its peak state, reaching the peak artifact level in one fell swoop.

The original owner of the Black Flame Demon Sword was Wu. According to the fragmentary memory of the weapon spirit, Wu was a general under the command of the Demon Ancestor.

Zhong Zihao glanced at the light door on the stone wall, wishing to sacrifice black flames to smash it. Because in order to open the door, the spirit of the weapon exhausted all the power sealed by the original owner in its body, causing the memory to be broken and almost nothing.

In other words, although the Black Flame Demon Sword at this moment returned to its peak state, it also lost its reputation in ancient times, let alone the inheritance memory carried by the spirit of the weapon.

After finally finding a clue, it disappeared in a moment. How could Zhong Zihao not be angry?

Fortunately, the magic sword did not cause a backlash on him. Perhaps because he had fused the blood of the Demon Ancestor, the original owner of Black Flame, was loyal to the Demon Ancestor. Even the broken weapon spirit could feel the aura in Zhong Zihao's body.

But, the problem arises again?

His magic sword was obtained from the Tongheng Battle Realm. Could it be that the huge remains he encountered back then was Wu? No, if Wu took action, he would never have fallen into a separate battlefield.

Perhaps it was Duke who personally sealed the Black Flame in the Stone Pillar of the Sky, and the remains were just guardians?

Relieve one doubt, another question lingers in my heart again.

How could the magic sword's weapon spirit appear in the holy realm of the sky? Is it true that this strange space was created by human power? And that person is Wu, or the legendary demon ancestor?

Zhong Zihao was a little overwhelmed for a moment. Why did the three magical weapons he owned have all been related to the demon race? Whether it is the ancient martial arts Liuguang Tower, the Qianlong Monument, or the Black Flame Demon Sword at this moment, it is all like this!

Even the mysterious Chaos Bead is inseparable from the Demon Ancestor!
Chapter completed!