"Boom!"

In a single thought, after Lin Feng took out the five kinds of exotic treasures used to refine the flying sword, the palms of his left and right hands were spread out at the same time, and the blazing Northern Pluto Emperor Flame was already burning.

After devouring the Blue Thunder Heavenly Fire, the Red Lotus Karma Fire, the Yuan Shen Gang Fire, the Life Spirit Yan and the Ghost Fire, and the five different fires, the color of the Northern Immortal Emperor Flame has changed to six colors: gold, blue, red, white, green, and blue.

The six-colored Northern Immortal Emperor Flame, just the moment it burned, it burst out with an incomparably terrifying scorching heat. The fireworks are even more monstrous, just like the tumbling magma inside. The moment it burned, it was between heaven and earth, and a monstrous fire curtain was opened that ran through heaven and earth.

"Boom!"

The Northern Immortal Emperor Flame, which had already devoured five kinds of alien fires, had an extremely terrifying increase in the power of the fireworks compared to the beginning.

This monstrous curtain of fire seems to have a terrifying aura that can burn everything, and in a trance, there is an illusion that the beginningless gate in which you are located, and even the entire beginningless domain, will be burned cleanly.

"Thunderbolt!"

"Zizi ......"

The Northern Immortal Emperor Flame, under the terrifying power of the flames, the five materials used to refine the Mixed Yuan Flying Sword first burst out with a continuous sound of fried beans, and then soon began to melt.

Bit by bit of liquid, it continued to be sliced apart, and slowly as time passed, the five kinds of exotic treasures, led by the meteorite stone, had all melted into a puddle of liquid. The five liquids are intertwined and converged into one.

Then it was extracted and purified.

"Boom, Boom......"

These essences, once extracted, began to quickly submerge into the Mixed Yuan Flying Sword at a rapid speed.

With the injection of the Alien Treasure Essence, you can clearly feel the changes in the entire Mixed Yuan Flying Sword.

Not only from the sword body, but the hardness released is soaring. Even the sharp aura gushing out from above is constantly skyrocketing.

In this way, time passed minute by minute, and before I knew it, when I completed the refining of the Mixed Yuan Flying Sword, it was already the next morning.

"Today's Hybrid Yuan Flying Sword has been tempered. ”

"The grade, as expected, has reached the level of a first-order low-grade artifact. ”

"I'm really looking forward to it, after completing the immortal weapon to the artifact, after this big grade leap, how much can the power of the Mixed Yuan Flying Sword be improved?"

Lin Feng whispered to himself, with a deep expectation in his heart that could not be suppressed at all.

The Extreme Perfection Immortal Weapon, and the First-Order Lower-grade Artifact, between the two, it sounds like just a leap of the grade. But this grade spans the great grade from immortal weapons to artifacts.

Therefore, even if it is just a leap in the ranks, the increase in the power of the flying sword has already exceeded, from the improvement of the inferior immortal weapon to the extreme perfection immortal weapon. Feeling the surging power of the flying sword after the level of the flying sword was raised, Lin Feng was even more in a trance, and he had a feeling that if he was to the extreme of the physical strength and cultivation realm, holding the mixed yuan flying sword that had reached the first order of the lower grade artifact at this time, and slashing it out with the strongest sword, even if it was a strong person of the second order of the Mahayana Dacheng, he could hit it hard with one sword, or even kill it directly.

"The Mixed Yuan Flying Sword, from the extreme to the perfection of the immortal weapon, after being promoted to a first-order low-grade artifact, how much power has been increased, just give it a try. ”

With his eyes turning, Lin Feng quickly made up his mind.

Step by step, they rose into the air, and only stopped when they were hundreds of meters in the air.

"Feng'er, Lin Feng, Brother Feng...... What is he going to do?"

Lin Feng's move quickly attracted the ideas of the four parents.

When they were cultivating last night, they noticed that Lin Feng's refining of the Mixed Yuan Flying Sword had just ended until this morning.

"Could it be that the level of the flying sword has been raised, this is to test the power?"

"Yes, it must be so!"

In a whispered voice, the four parents quickly determined the answer.

After all, having completed the advancement from immortal weapon to artifact, the terrifying improvement of the power of the Hybrid Yuan Flying Sword is clear at a glance. Even if their attention fell on the current Mixed Yuan Flying Sword, they could feel that terrifying aura that was obviously stronger than last night.

"Boom!"

Lin Feng, who was hundreds of meters in the air, held his breath, clenched the flying sword with both hands, and slowly raised it above his head little by little.

The monstrous sword qi erupted violently.

In just an instant, the sword qi that rose to the sky had already disappeared into the sky, with no end in sight.

"Slash!"

At this moment, Lin Feng held his sword in both hands and slashed out with force.

"Click!"

A sword fell, and there were no words at all, which could describe the speed of this sword and the horror of the breath.

Even if Lin Feng had already slashed out with a sword in both hands, the sword qi that pointed straight into the sky still maintained a posture of rising into the sky, motionless. Not only that, but the range of Lin Feng's sword finger did not change at all, as if the sword that was slashed with all his strength was just a breeze blowing.

It wasn't until a few breaths later that a huge crack exploded between heaven and earth.

Not only that, but this rift also started from the center of heaven and earth in front of us, and continued to spread forward.

Ten kilometers, one hundred kilometers.

Three hundred km, five hundred km.

Seven hundred kilometers!

It wasn't until it spread out a full 700 kilometers that it stopped.

As far as the eye can see, there are cracks that cannot be seen at a glance.

In the trance, it gives people the illusion that the entire beginningless ruins are under this sword, cut from it and split in half.

And it was only at this time that the monstrous sword qi that originally pointed directly at the sky was fleeting and disappeared.

"The grade of the flying sword, after reaching the artifact, the increase in power is really terrifying!"

Lin Feng was excited.

This is the performance of speed and sharpness, to an extremely terrifying extreme.

"The sword in Feng'er's hand is really powerful!"

After a sword slashed out for nearly five breaths, the sword qi disappeared in a flash, and the heavens and the earth exploded into a huge crack. I couldn't imagine how fast the sword that Lin Feng had slashed out just now was!"

"The power of Brother Feng's sword feels like ...... It's like splitting the heavens and the earth!"

"If this sword is put on the earth, I am afraid it will be enough to cut a completely piercing hole in the huge piece of earth!"

Inside the beginningless gate, the four parents, who had attracted all their attention, suddenly lost their minds.

After a while, the four of them looked at the heaven and earth ravine that almost penetrated the entire beginningless ruins, and they couldn't suppress it one by one, and shouted excitedly.

"The increase in the power of the flying sword is similar to what I expected. ”

"Even, strictly speaking, it's a little stronger than I expected. ”

"It seems that the Mixed Yuan Flying Sword of the past must be a holy weapon. And even among the holy weapons, it is the most outstanding and rare existence!"

Muttering to himself, Lin Feng withdrew the Mixed Yuan Flying Sword.

The strength of the realm has reached his current level, and if he wants to improve, even if he looks at the entire five domains of the Immortal Gate, there are few places that can give him a chance to improve quickly.

The only hope, that is, the entire immortal gate, is from the hinterland of the mysterious, dangerous and opportunity-ridden sea of vain.