PS: (Roar, the protagonist's weapon has finally appeared!Guess what it's called!!)

In the small valley, the rushing water rushes down the waterfall and smashes into the deep pool, making a loud roar.

In the sky, black clouds covered the sky, making this piece of heaven and earth like night, a darkness, from time to time, a wild dance of silver snakes cut through the sky, flashed, with a deafening roar like the roar of heaven and earth.

The oppressive atmosphere completely enveloped this vast mountain range.

Feeling this majestic and amazing aura that belonged to Tianwei, those four-star demonic beasts in the mountain range, which were incomparably powerful in the eyes of ordinary people and comparable to sword spirit powerhouses, either hid in their nests or lay on the ground, and they had long lost their previous might.

There was silence in the mountains, even the birds and insects were completely gone, except for the never-ending loud sound of the waterfall smashing into the deep pool, and the whole world was dead silent.

On the boulder in the open space next to the waterfall, Guiguzi sat cross-legged, his eyes were slightly jawed, and the samadhi true fire in front of him was like a blood cocoon, wrapping the ink-colored sword embryo, and the terrifying temperature was completely constricted under Guiguzi's control, without leaking a trace at all.

At this time, it is the last step of refining, quenching!

Although Han Chen's cultivation speed was extremely fast, it was only equivalent to the strength of a five-star sword guard, and the majestic aura of heavenly power in the sky, which was enough to make even four-star demonic beasts tremble, also made him feel extremely depressed, his chest was dull, and his breathing was a little difficult.

Sitting on a boulder with his knees crossed, the eighth layer of the Nine Styles of Naling runs rapidly in his body. Absorb the aura between heaven and earth, run quickly in the body, and resist the pressure of that majestic and majestic breath.

Despite this, Han Chen's face was still pale, and he felt extremely heavy all over his body.

He opened his eyes, slowly raised his head and looked at the sky, swallowing his saliva, such a vision, he had seen it for the first time in his life, facing such a powerful majesty of heaven and earth. Han Chen still had some doubts.

Eccentricity. Then he looked at the samadhi true fire that was like a blood cocoon and did not change in the slightest, and exhaled softly.

At this time, no matter how stupid he is. It has also been understood. This unusual black cloud that covers the sky is definitely related to the ink-colored sword embryo refined by Guiguzi.

It hasn't been fully refined yet. It has already caused a vision of heaven and earth, if this is refined, then it will be necessary?

"I'm afraid the grade of this sword is not low!" Han Chen's heart was hot. The gaze in his eyes was both expectant and excited.

When he was in the imperial capital, Han Chen had talked with Yan Lao for a while, Yan Lao was a four-grade caster, but he had never heard him say that when he cast a four-grade spiritual weapon, there would be such a terrifying vision of heaven and earth!

Time passed slowly, and in the blink of an eye, half an hour passed!

Suddenly, Guiguzi, who was sitting cross-legged, suddenly opened his slightly jawed eyes, and his hands quickly formed a series of knots.

Sensing Guiguzi's movements, Han Chen opened his eyes for the first time and cast his gaze.

The speed between Guiguzi's hands was extremely fast, his fingers changed, bringing up layers of afterimages, and eighteen seal knots were formed in an instant, and when the last seal knot was completed, it was instantaneous.

In front of Guiguzi, the samadhi true fire like a blood cocoon seemed to be sensed, and it quickly trembled, and the next moment, 'poof' was like the sound of bubble bursting, the blood cocoon shattered, the flames rose, and the ink-colored sword embryo inside also reappeared in Han Chen's eyes again.

However, at this time, the sword embryo has completely faded its rough appearance, and it can no longer be called a sword embryo, but a sword that has been refined.

"Boom!!"

As the ink-colored long sword was revealed, the black clouds covering the sky were like pitch-black sea water, quickly tumbling up, one after another silver snakes dancing wildly in the sky, bursts of roaring sounds, deafening, and the sound of the waterfall on the side was completely covered.

Scattering the seal, Guiguzi stretched out his right hand and leaned forward, as the palm moved forward, the true fire of Samadhi began to gradually dissipate, and the dark long sword in it became more and more obvious.

After a while, the Samadhi True Fire was finally completely extinguished, and it turned into a little bit of light and drilled into the center of Guiguzi's eyebrows.

Looking at the dark long sword that was fully revealed as the Samadhi True Fire dissipated, Han Chen's eyes suddenly lit up.

The long sword is about four feet three inches long and three inches wide, and the whole is as black as ink, even the blade and hilt of the sword are also pitch black, and there are some faint lines printed on the spine of the sword, and the simple style is not ostentatious at all.

The quaint and atmospheric feeling of the black long sword made Han Chen like it more and more when he looked at it!

"Groan!!"

The next moment, Guiguzi's hand grasped the hilt of the sword, and suddenly a crisp and distant sword groan rang out, soaring into the sky!

"Boom!!" And at this time, the black clouds in the sky were churning more and more violently, and the sky was full of silver snakes dancing wildly.

Looking up at the sky like a silver snake in the black clouds of huge waves, Guiguzi let out a long laugh: "It's okay, I will borrow your most domineering strength in the world to refine this sword for the last time!"

When the words fell, Guiguzi's right hand shook, and the dark long sword in his hand suddenly turned into a black light and flew towards the tumbling black clouds in the sky.

The black clouds in the "boom" sky seemed to be provoked, quickly rolling and surging, and the thunder in the black clouds became more dense and intense.

"Boom!!" Finally, a thick thunderbolt rushed out of the black clouds, bringing a burst of dazzling light, like the roar of heaven and earth, with a deafening roar, and blasted down on the long sword that was rushing into the sky.

"Choke!!"

The thunder bombarded the long sword, and the dark long sword shook violently, sending out a sound of extremely penetrating gold and iron clashing, and the forward momentum was blocked by the thunder, and the long sword swirled and fell to the ground.

Seeing that the long sword fell, Guiguzi Ha Luha smiled, and with a wave of his right hand, a burst of energy shot out, hitting the sword body of the long sword.

"Come again!"

Hit by Guiguzi's strength, the long sword rushed straight towards the black clouds that covered the sky again.

"Teacher, is this a catastrophe?" Han Chen on the side was already stunned, and he was stunned for a long time, until the thunder rushed out of the black clouds and bombarded the long sword, he came back to his senses and asked in shock at Guiguzi.

"It's indeed a heavenly calamity, but it's an instrument calamity!"

"When the weapon reaches a certain grade, it will be intolerable to heaven and earth, so as to descend the weapon and destroy it!"

Looking at the long sword that crossed the sky and rushed towards the black cloud again, Guiguzi put his hands behind his back and said slowly with a smile.

"Huh, what if it is destroyed by the weapon?" Hearing this, Han Chen was stunned, and then hurriedly asked.

He didn't want to go to great lengths to collect so many refining materials and refine the weapons that he had refined to be destroyed like this!

Feeling the eagerness in Han Chen's tone, Guiguzi smiled slightly, and said calmly and confidently in his voice: "Although the Heaven and Earth Artifact Tribulation is to destroy the weapon, this is also an opportunity, as long as it can survive, the impurities in the weapon will be refined and cleaned under the most domineering force in this Heaven and Earth, and the grade will be raised again!"

"When a weapon reaches the sixth-grade upper-level spiritual weapon, it will cause a weapon tribulation, and every time a grade is raised, heaven and earth will descend the weapon tribulation, and the power of the weapon tribulation will also increase several times with the improvement of the quality of the weapon. Correspondingly, the higher the grade, the fewer people can survive the weapon tribulation, which is also the reason why absolute weapons and life weapons have been rare in the Purple Gold Continent for tens of thousands of years!"

After a pause, Guiguzi looked up at the surging black clouds in the sky, smiled, and said in a calm voice: "Besides, this instrument tribulation is just a three-nine instrument tribulation, and the teacher is not in his eyes!"

Although the tone was calm, the pride was overflowing.

At this time, Han Chen's eyes were already full of shock, he looked up at the sky, and looked at the black long sword that rushed up, his heart was blazing.

Unexpectedly, this sword turned out to be a sixth-grade upper-grade spiritual weapon, which was a treasure that even the Sword Emperor powerhouse might not be able to have.

Yes, it's a treasure!

Black clouds surge, thunder rolls in!

"Boom!!" There was a loud roar in the sky again, and a thunderbolt twice as thick as the previous one suddenly rushed out of the black clouds and blasted towards the black long sword that rushed up again.

"Choke!!"

When the thunder came, the black long sword was hit by the heavenly thunder again, and suddenly a louder sound broke out than before.

At this time, without waiting for the black long sword to fall, Guiguzi stretched out his hand again, and a wave of energy rushed straight into the sky, hitting the sword body

The thick heavenly thunder bombarded down continuously, bombarding the long sword. Although the thunder was terrifying, the long sword was not damaged in the slightest, and every time it was shot down, it would be hit by a strong aura of Guiguzi, and it would rush towards the clouds again defiantly.

The third, seventh, thirteenth, and nineteenth paths

As time passed, half an hour passed.

"Boom" A heavenly thunder the thickness of a water tank slammed into the black long sword with a roaring roar.

The sword body trembled sharply, but when the thunder dissipated, the long sword was still unharmed, and it swirled and fell towards the sword.

Guiguzi waved his hand, and a strong qi slammed the long sword towards the clouds again. At the same time, he smiled and said: "Yes, it is already the twenty-sixth way, and there is one more to complete!"

There are a total of twenty-seven heavenly thunders in the Thirty-Nine Instrument Tribulation, and twenty-six have been passed in half an hour.

At this time, the last thunder bombardment is about to begin!!(To be continued......