He looked down and saw that Cai Wenshuang's face was as pale as paper, his lips were bloodless, and his breath was weak, as if it would disappear at any time.

"Dad..." Cai Wenshuang stretched out his hand powerlessly, trying to catch Cai's father, but only caught a void.

Cai's father staggered back with his eyes empty, as if he had lost his soul.

He looked at Xi Yu, his lips twitching, as if he wanted to say something, but in the end he didn't say anything.

He slowly raised the knife in his hand and pointed the tip of the knife at his chest...

"No--" Xi Yu roared, trying to stop Cai's father, but found that he could not move.

At this critical moment, the underground palace suddenly shook violently, and the stones above the head fell down one after another, making a deafening sound.

"Quick! Get out of here!" Cai's father used his last bit of strength to push Xi Yu and Cai Wenshuang to the exit of the underground palace.

"Dad!" Cai Wenshuang cried, grabbed Xi Yu's hand tightly, and refused to let go.

Xi Yu hugged Cai Wenshuang tightly, his eyes firm and decisive.

He knew that they had to leave here and live, for Cai's father and for themselves.

"Boom--" The ground of the underground palace suddenly cracked...

The ground of the underground palace suddenly cracked, and a hideous gap was like the bloody mouth of a giant beast, swallowing everything around it.

The gravel collapsed and the dust flew. A figure slowly rose from the cracks amid the deafening roar.

The imperial doctor was wearing a black robe, with a gloomy face, and holding a woman in purple who was as quiet as a sleeping beauty in her hand.

He raised his head, his sinister eyes swept through the chaotic scene, and finally fell on Xi Yu, his voice was low and hoarse: "Master, the imperial vein has been broken, it's time..."

Before he finished speaking, a sudden change occurred.

Xi Yu suddenly pressed the weak Cai Wenshuang in his arms on the core of the Tianji Wheel. The ancient roulette emitted a faint cold light, as if the sleeping giant beast was about to wake up.

"Bit my fingertips!" Xi Yu's voice was quick and hoarse, with unquestionable orders.

Cai Wenshuang was stunned for a moment, and then did not hesitate.

Sharp teeth pierced the skin, and warm blood dripped onto the cold roulette.

The golden blood, like life, spreads along the ancient lines.

The Tianji Wheel emitted a low buzz, and a powerful force gushed out from the center of the wheel, sweeping across the entire underground palace.

Dust is flying, and gravel is dancing, as if the end of the world is coming.

At this moment, a golden figure slowly crawled out of the heart of the wheel.

He was hunched over, his face was withered, but his eyes were shining with a cold light.

Xi Wujiang, the former head of Tianji Pavilion and Xi Yu's biological father, is like an evil ghost returning from hell, with endless resentment and anger.

At the same time, Cai's father's body suddenly burst out with dazzling golden light.

The golden light surged like a tide, wrapping him up and finally condensed into a translucent human form.

The human figure is exactly the same as that of Cai’s father, but it has a bit more majestic and sacred, just like a god descending to earth.

"What you secretly changed back then was not the bloodline, but the real key of the Heavenly Mechanical Wheel!" Cai's father's voice resounded throughout the underground palace like a big bell.

His eyes fell on Xi Wujiang, with endless ridicule and contempt.

Xi Wujiang's remnant soul let out a sharp roar, like a wounded beast.

"Bad! How dare you hide your twin bloodlines?" He stretched out his withered fingers and pointed at Cai's father, his eyes full of murderous intent.

Xi Yu coughed out a mouthful of black blood, but a strange smile appeared on the corner of his mouth.

He wiped the blood from the corner of his mouth and laughed wildly: "You died twenty years ago, I am the real drama Wujiang!" His laughter was full of madness and pride, as if he had already controlled everything.

The Tianji Wheel suddenly shone brightly, and a beam of light was projected into the air, forming a huge picture.

The picture is a wedding letter between Cai’s father and Mother Xi, with beautiful handwriting and sharp pen tips.

The signature is the handwriting of Xi Yu when he was young, but it is young but firm.

"This..." The Imperial Doctor of the Imperial City looked at the wedding book, his pupils suddenly contracted, and he muttered to himself in disbelief.

The woman in purple in his hand had slightly trembling eyelids, as if she would wake up at any time...

In the underground palace, the air is as viscous as solidified blood, filled with the smell of dust and decay.

The heavenly wheel buzzed and shook, and the faint light emitted reflected everyone's twisted face.

The woman in purple had her eyelids trembled, like a trapped beast struggling in a cage.

The hatred in her eyes was so strong that it could not be dissolved. It was a hatred for Xi Yu and fate.

She seized the opportunity, and her slender fingers poked out like a poisonous snake, stabbing her natal Gu into Xi Yu's heart.

Xi Yu groaned and his body trembled violently.

He looked down in disbelief and looked at the scarlet red on his chest, like a blooming mandala, charming and deadly.

However, the next moment, an accident suddenly occurred.

The Imperial Doctor of the Imperial City, this man who had been hiding in the shadows, suddenly rose up.

He grabbed the girl in purple with his back hand, like carrying a broken puppet, pushing her hard into the bottomless abyss.

"The Lord was swallowed by the drama mother!" His voice was sharp and harsh, with hysterical madness.

The woman in purple let out a shrill scream, drew an arc of despair in the air, and disappeared into the darkness.

There were creepy echoes in the underground palace, like the wailing of hell.

At the same time, the golden blood on Cai Wen's fingertips seemed to be summoned by some kind of summoning, and actually condensed into a huge golden sword in the air.

The sword body is filled with brilliance, exuding a sacred and majestic aura.

The hilt of the sword is the pattern of the Xiyu jade pendant, complex and mysterious, like an ancient spell.

Xi Wujiang's remnant soul let out a shrill roar, turning into a thick black mist and sweeping towards the sky above the imperial city.

The black fog covered the sky and the sun, covering the entire imperial city in a gloomy and terrifying atmosphere.

The sound of the wind roars, like the howling of a ghost, which is terrifying.

Suddenly, an ethereal and cold voice came from the depths of the ground, like a whisper from hell: "The Heavenly Memorial Wheel is going to devour the entire imperial vein..." It was the voice of the Mother of the Mother, with endless greed and madness.

Cai’s father’s face changed drastically. He grabbed Cai Wenshuang and pushed her towards Xi Yu.

"Quick! Restart with the twin blood covenant..." His voice was quick and hoarse, with unquestionable orders.

However, before he finished speaking, the change occurred again.

The entire imperial city began to shake violently.

The ground cracks and the house collapses, just like the end of the world.

What is even more shocking is that the entire imperial city began to slowly reverse, the sky turned into the earth, and the earth turned into the sky.

In the chaos, Xi Yu's jade pendant emitted a dazzling light, and the light became more and more prosperous, and finally it reflected the light of the Tianji Wheel and merged into one.

The patterns on the jade pendant completely coincide with the patterns on the Tianji wheel, like a perfect fit, exuding ancient and mysterious power.

"No..." A terrified voice echoed in the underground palace. It was the voice of the imperial doctor in the imperial city, full of despair and fear.

He stretched out his hand and wanted to grab anything, but couldn't catch anything.

His body began to tremble, his eyes were dissipated, as if he had lost his soul's shell.

"Twin blood contract...start..." Cai's father's voice trembled weakly, as if it was the last murmur.

His body began to become transparent, and eventually disappeared into the air, leaving only the last trace of golden light, which merged into the Heavenly Wheel.

"Xi Yu..." Cai Wenshuang stretched out his hand and wanted to catch Xi Yu, but only grabbed the air.

OK, here is the main text, please fasten your seat belt:

"Boom--"

This sound seemed to be not drilling into the ears, but exploded directly into the cracks of everyone's bones!

Xi Yu felt that all his internal organs were about to be turned upside down by this violent vibration, and his throat was sweet and a mouthful of blood almost spurted out.

He gritted his teeth tightly before swallowing the fishy sweetness back.

But even so, he still felt like a huge rock pressing on his chest, which made him breathless.

Not only him, but everyone present was shocked by this sudden change.

Imperial City, this majestic city that has been standing for thousands of years, is now like a toy played with by naughty boys, and it begins to turn wildly!

The ground is no longer a solid land, but becomes an endless abyss, like a huge mouth that chooses people to swallow everything.

The sky is no longer a lofty sky, but has become a hard barrier, which makes people breathless.

The originally familiar palaces, pavilions, streets... everything has become distorted and deformed, like a bizarre nightmare.

In this upside-down chaos, the jade pendant on Xi Yu's waist suddenly burst out with a dazzling light.

The light, like the rising sun, dispelled the darkness around it and illuminated everyone's face.

The light became more and more prosperous and brighter. In the end, it actually shone with the light of the Heavenly Memorial Wheel and merged into one!

The patterns on the jade pendant and the patterns on the Tianji wheel are like lovers who have been separated for many years. They finally meet again and fit together tightly, without any deviation.

An ancient, mysterious, and vast force burst out from this perfect fit, swept across the entire underground palace, and even penetrated the thick layer of soil, soaring into the sky!
To be continued...