Blood exchange and return to ancient times is a method that goes against the sky left over from ancient times. At the same time, this method is also called Nirvana and Rebirth.

However, because this method is extremely cruel and has great disadvantages, it can only make the cultivator who has changed his blood and returned to the ancient world be reborn and resurrected for less than a year, so few people used it in the past.

Later, as time went by, this method gradually disappeared in the long river of history and became a masterpiece of eternal vocals. Very few people knew about it.

This method was not created by Pangu, but was obtained by chance. He thought it was very wonderful, so he included it on the last page of Pangu's Heavenly Book and marked it at the end. This method has great disadvantages. Those who obtain it must use it with caution. Never use this method to help the evildoer. Otherwise, God will punish him!

The reason why Pangu included it was because he was curious, and the second was that he wanted to improve this method and overcome the limit of one year to benefit the people. However, until now, no improvement method has been studied!

In addition, this method has extremely high requirements for cultivation, and it is impossible to use it without the peak level of the mid-stage Void Saint.

If it were the past, even if Lu Tianyu knew this method, he would have to sigh and be helpless. However, as his cultivation level soared and his power of Taoist thoughts increased rapidly, this was no longer a problem for Lu Tianyu!

After recalling the whole process in my mind, Lu Tianyu immediately took a deep breath, raised his hands, pinched his hands wildly, and pressed hard towards the five-colored cauldron in front of him!

In an instant, endless spiritual energy and the power of rules of heaven and earth flocked to it, like a tide that merged into the cauldron and disappeared.

The next moment, the colorful divine lights in the sky rose from the inside of the cauldron, carrying the scorching high temperature, like a mutated flame, facing the Qingwu Saint Ancestor and countless treasures inside, they were crazily refined.

The higher the grade of the heavenly treasure, the greater the chance of success of blood exchange and return to ancient times. Fortunately, Lu Tianyu had obtained a lot of high-level heavenly treasures from the treasure pavilion of the Evil Demon Sect. Otherwise, this plan might not be able to be smoothly carried out!

As the colorful flames ignited, all the treasures of heaven and earth ran around, and wisps of mottled and impure aura whizzed out. The Qingwu Saint Ancestor also trembled violently, and wisps of black smoke emerged from his body!

The method of blood exchange and return to the ancient times is similar to the refining of weapons. However, one is to use various natural and earth treasures as the main materials to refine a magical artifact against the heavens. The method of blood exchange and earth treasures is the main materials of humans, and those natural and earth treasures are just auxiliary!

Time passes, and an hour passes in a blink of an eye.

The method of blood exchange and return to ancient times has been extremely smooth. Under the burning of Lu Tianyu's colorful flames, all the treasures of heaven and earth turned into wisps of smoke of different colors, merged into the body of the Qingwu Saint Ancestor and disappeared.

At this moment, one of the three drops of the blood of the sky eagle in the body of the Qingwu Saint Ancestor began to turn into thousands of threads and melt all over his body, without any incongruence. This scene made Lu Tianyu's eyes lit up, and the hanging heart was instantly realized!

Because it was the first time he used this method. To be honest, he was not 100% sure whether this method could be successful!

But just as Lu Tianyu breathed a sigh of relief, a sudden change occurred!

The entire five-colored cauldron shook all over, and countless cracks of varying degrees suddenly appeared on the surface of the body. At the same time, the colorful flames inside quickly rioted, and instantly burned half of the Qingwu Saint Ancestor into coke. Straws of bright red gas were quickly forced out of the body by the Qingwu Saint Ancestor, and suddenly disappeared!

"Roar!" At this moment, the closed eyes of the Qingwu Saint Ancestor suddenly opened, and a shocking roar came from his head, and a deep pain in his voice turned into rolling thunder, sweeping across the four fields and spreading all directions!

"Damn it, what's going on?" Lu Tianyu frowned suddenly. Seeing that the Qingwu Saint Ancestor was about to be burned into coke, he waved his right hand without hesitation and quickly pressed it on the cauldron. A huge vortex suddenly appeared in the palm of his hand. Thinking about the inside of the cauldron, he started to suck and pull it wildly.

Soon, the entire cauldron, so all the colorful flames were sucked in by Lu Tianyu's palm, leaving no drops left!

As the colorful flames dissipated, the Qingwu Saint Ancestor finally escaped from danger and collapsed to the ground with a listless look, looking at the sky with his eyes, with a deep pain in his dullness!

Lu Tianyu withdrew his right hand, took a few steps back, and after a while of breathing, his eyes immediately looked like lightning, staring at the Qingwu Saint Ancestor inside, his brows getting tighter and tighter!

"It's really strange. I have been following the process of blood exchange and returning to ancient times. I asked myself that there was no mistake in the middle, so why did I fail for no reason?" Lu Tianyu murmured to himself, recalling the previous refining process over and over again in my mind, but no matter what, I couldn't find the clues of the problem!

"What do you want to do to me?" Just as Lu Tianyu was at a loss, a familiar voice immediately came from his ears.

Although this voice was very weak, it fell into Lu Tianyu's ears, but it was like a shocking thunder. While making his body tremble violently, he opened his mouth incredibly and couldn't close it for a long time!

"Qingwu Saint Ancestor, you... have you actually recovered your mind?" Lu Tianyu stared at the Qingwu Saint Ancestor in the cauldron in disbelief, with a strong shocking light in his eyes.

What he never expected was that the puppet Qingwu Saint Ancestor quietly recovered his mind without his knowledge. Otherwise, how could he talk to him like this?

"Yes, after successfully advancing to the realm of Xuji in the past, I successfully recovered a little bit of my mind, but you didn't know it!" Hearing Lu Tianyu's words, the Qingwu Saint Ancestor lying in the cauldron immediately struggled to get up from the ground. His expression was listless and his eyes were extremely complicated. In addition to the pain, there was also a strong sense of unconcealable fear.

"Since you have already recovered your mind, why didn't you rebel?" Lu Tianyu took a deep breath, suppressed his shock in his heart, and murmured.

"I want to rebel too, but I can't do it!" When the Saint Ancestor Qingwu immediately smiled bitterly and shook his head.

What he said is true. In fact, when the moment he successfully advanced, the Qingwu Saint Ancestor thought of rebelling and getting rid of Lu Tianyu's shackles. However, just as the idea of ​​rebellion arose, the mind that had finally recovered was immediately suppressed by the control imprint in his body and almost disappeared in an instant.

Only then did the Qingwu Saint Ancestor realize that Lu Tianyu and the control seal on him were too strong and too big, and he was definitely not something he could compete with now.

After the words came, Lu Tianyu immediately stared at the Qingwu Saint Ancestor with deep eyes, quietly waiting for his reply!

Time passed quietly, and half a stick of incense passed in a blink of an eye!

At this moment, the Qingwu Saint Ancestor gritted his teeth, looked at Lu Tianyu, and nodded heavily: "I am willing to give it a try!"

Words to readers:
Chapter completed!