The stone 'door' was completely opened, and an old stone staircase that was about to be weathered appeared in front of Cheng Wushuang and the others.

"Wushuang, how did you know the method of opening this stone 'door'?"

Cheng Shuiyue was surprised to see the 'yin' and yang crown drawn by Cheng Wushuang on the stone 'gate', and actually skillfully borrowed spiritual power and 'essence' divine power.

"The unequaled little friend has been here. ”

Lingluo was also a little surprised, and couldn't figure out why Cheng Wushuang immediately knew the method of opening the stone 'gate'.

"Coincidentally, this is a skillful coincidence, when I entered the fourth floor, I unexpectedly saw the ground and the surrounding walls carved with the 'yin' and yang crowns and the star atlas, separated from each other, and suddenly my mind moved, thinking about whether this stone 'gate' combines the star atlas and the 'yin' and yang crowns into one. ”

"With the help of spiritual power and 'essence' divine power, two different powers belong to 'sex', to represent 'yin' and yang, engraved a pair of 'yin' and yang crowns, and as expected, the stone 'door' opened. ”

Cheng Wushuang spoke, and then walked up the stone stairs to the fifth floor.

Lingluo secretly praised in his heart: spiritual power and 'essence' divine power can be used to represent 'yin' and yang, and the peerless little friend is really a genius in the sky.

Cheng Shuiyue followed closely behind Cheng Wushuang, silently staring at Cheng Wushuang's back, it was the first time she had seen the way that 'essence' divine power and spiritual power represented 'yin' yang, and she instantly felt that Cheng Wushuang's thinking was really wonderful and flexible.

After a moment's effort, the three of them came to the fifth floor of the Martial Arts Hall.

The fifth layer is different from the first four layers, empty, "swinging", "swinging", there is nothing, except for the sky "flower" board engraved with the map of the night starry sky.

"I wonder where the Fire Immortal Sword is stored?"

Lingfall looked around, and saw that there were extremely empty spaces everywhere, and he felt surprised, according to the martial arts storage rules of the Martial Arts Hall, this last layer of martial arts should be the place where the Fire Immortal Heavenly Sword Duel was stored?

Cheng Wushuang smiled faintly and pointed to the top of his head at Lingluo and Cheng Shuiyue.

"The Fire Immortal Sect's Zhen Sect Peerless Sect should be on the Heavenly 'Flower' Board!"

"When I entered here, I sensed a strange formation 'wave' movement, which should be a 'gate' sealing formation. ”

Cheng Wushuang stretched out his hand, and a 'essence' divine power and spiritual power were injected into the Heavenly 'Flower' plate, breaking the sealing formation engraved on the Heavenly 'Flower' plate.

Then the vision suddenly turned black, and suddenly the light of the stars dazzled again, and the fifth floor of the entire martial arts hall was like space.

Peerless burning stars, seen from afar, side by side, zigzag, like a font.

"This is the Fire Immortal Heavenly Sword Duel!"

Lingyuan was excited for a while, and he saw that the font formed by the distant stars was only a few crosses, but it was all-encompassing, mysterious and 'refined', and it was the strongest sword duel he had ever seen in his life.

"Elder Ling, Shui Yue, hurry up and make a few strokes of the Fire Immortal Heavenly Sword, I feel that there is something hidden by the shadow in this fifth layer!"

Cheng Wushuang reminded him that when this sealing formation was broken by him, he had already sensed a 'wave' of energy from a fire source, although it was very weak, but it was extremely pure.

When Lingluo and Cheng Shuiyue heard this, they immediately wrote it down silently in their hearts.

"Peerless little friend, is there anything else on this fifth layer?"

Spiritfall asked.

Cheng Wushuang didn't answer, just nodded slightly, waved his hand, and began to frantically inject 'essence' divine power into this space star fantasy in the domain of consciousness.

As the 'spirit' divine power was involved like a sea wave, cracks gradually appeared in this fantasy, increasing one after another.

At this time, Cheng Wushuang suddenly picked up the stone sword and performed a sword technique!

I saw countless monstrous flame 'waves' sweeping over, gathering on the edge of the stone sword, making the pitch-black stone sword instantly turn into scorching blazing iron, emitting countless flame star maps, and finally slashed out with a sword in Cheng Wushuang's hand!

Those flame powers turned into a powerful scorching sword qi, incinerating all of the illusions that had countless cracks!

One, two, three......

Cheng Wushuang, Cheng Shuiyue, and Lingyuan enjoyed the magnificent scene of a beautiful fireworks burning the starry sky.

Half a cup of tea, until the fierce flames burned the last star, the flames disappeared in an instant, and the surroundings turned into silence.

Just listen to a clicking sound, and your eyes will light up!

The surroundings once again returned to the empty 'swinging' appearance when they first came to the fifth floor of the Martial Arts Hall, except for a short cyan 'jade' platform!

This cyan 'jade' platform is only about one meter high, cylindrical in shape, and about two feet in diameter.

On the 'jade' platform, a faint red 'color' beam lit up.

Cheng Wushuang took a closer look, and saw a red 'colored' flame burning, as if it was going to be extinguished at any time, and inside the flame, there was an ancient mark of gold 'color' hidden.

"What is this?"

Cheng Wushuang 'touched' his chin, couldn't help but think deeply, and saw Cheng Shuiyue and Lingluo coming to his side, his eyes were suspiciously 'projected', trying to find an answer.

"This old decay is also the first time I have seen it, this flame has no incendiary substances, and it is burning with an ancient mark formed by spiritual power, it is really too incredible!"

Linglu's eyes stared straight at the ancient mark in the flame, feeling that this mark was extraordinary, a little mysterious, for a while, he who had originally obtained the Zhenzong of the Fire Immortal Sect and was happy, was seduced by this flame in the blink of an eye.

Cheng Shuiyue stared at this flame, thinking of the spectacular scene of the burning planet just now, and suddenly a dusty memory appeared in the depths of his mind.

"It's the flame of the stars!"

Cheng Shuiyue's eyelashes blinked, and a touch of surprise appeared in the depths of Shui'bo's eyes.

"Star Flame?"

Cheng Shuiyue and Lingfall were a little confused, this term was the first time they had heard of it for both of them.

"I don't know very well, I only know that the star flame is said to be the most primitive form of a star's star origin, and the initial appearance of all stars is a flame, and after the star falls, it will also restore the original flame state, and it will rise and extinguish again by random fate!"

Cheng Shuiyue looked at this flame closely, and then said to Cheng Wushuang: "Wushuang, you quickly use your Dan Fire to devour this flame, the power contained in this flame is no less than Xuanhuo!"

"Really?"

When Cheng Wushuang heard this, he opened his mouth slightly, a little surprised.

Without hesitation, he immediately sacrificed the Divine Flame of Creation, and as soon as the black and white 'colored' flame appeared, he found that this flame, like a cat seeing a mouse, was extremely crazy, and as soon as the flame's momentum rose, he swallowed this flame.

Cheng Wushuang withdrew the Creation Divine Flame, and within a moment's effort, he sensed a fire source power coming from the Creation Divine Flame, which poured into his body along with the twelve spiritual springs along with the spiritual power.

The power of the fire source infected every meridian and every bone of him, making his body tempered once and becoming more powerful than before, and this tempering allowed him to increase the power of at least five hundred demon tigers!

The surprise of the improvement of strength made the corners of Cheng Wushuang's mouth 'show' a smile, but the laughter appeared in less than a breath, Cheng Wushuang's pupils suddenly 'revealed' a shocked 'color', and a fragment of the ancient secret method appeared in his mind.

Three Mysterious Divine Flame Law Phase!

Although it was only a fragment, Cheng Wushuang felt that it was extremely profound, and it was the first time in his life that he had encountered this special secret method of martial arts, and he could actually use his own Dan Fire in battle.