Nian Chen felt a little regretful in his heart.

I want to refine the same level of elixir, although the current Dan Dao attainments are enough, but it is already difficult to find top-level elixirs and materials in this world......

But now that the crisis is imminent, even the most precious elixir can no longer be kept!

The mana in the body was urged, and according to a mysterious trajectory, it began to circulate in the body, and the more than a thousand rune formations that had already been imprinted in the body began to shine one after another!

Nian Chen immediately shook violently, and half of the essence and blood in his body were forced out and merged into the heaven and earth oven......

The phantom of the oven soaked in essence and blood instantly turned red like blood, and it spun like a burning furnace!

Nian Chen immediately threw the thumb-sized mountain and sea pearl in his hand directly into the air.

The blood-red Heaven and Earth Oven Illusion produced a suction force, ingesting the mountains and seas into it......

At this time, because the essence and blood had been consumed twice in a short period of time, his face became pale, and a feeling of weakness arose spontaneously from the bottom of his heart.

However, this time is the most critical moment for refining the mountains and seas, and there is no room for the slightest mistake.

Nian Chen forcibly lifted his spirit, and the majestic mana drove the virtual shadow of the heaven and earth oven to rotate rapidly, constantly refining the mountains and seas......

Time passes slowly.

Half an hour passed.

The Heaven and Earth Oven Phantom has changed from blood-red at the beginning to its original translucent.

This is a sign that the essence blood has been completely absorbed by the mountain and sea pearls.

Nian Chen reluctantly found that he was still one step away from refining the mountains and seas.

The most important thing is that it is necessary to continue to consume essence blood for refining.

And in this day's time, two huge consumptions, the body's essence and blood have been consumed by most of it.

Essence blood is the foundation of life, and if ordinary people lose more than half of their essence blood, they will definitely die.

Even if you are a monk, if you consume more than half of your essence blood, it is a very dangerous thing, and it will be a great drop in cultivation, and you will lose your life at worst......

Although Nianchen's body is ridiculously strong, the essence and blood in his body are also exuberant to an incredible extent.

However, after all, the Mountain and Sea Pearl is the treasure of the Cave Heaven, and if you want to refine this kind of treasure, the essence blood required is naturally very large.

If this time the refining of the Mountains and Seas Pearls was replaced by an ordinary monk, even if it was an old monster in the Yuan Infant Stage, it would be impossible to consume so much essence blood like Nianchen!

Because the essence and blood in Nianchen's body are at least a hundred times more vigorous than ordinary monks, even Yuanying monks can't compare to them.

This is also something that Zhong Mubai had expected a long time ago, so he let Nianchen use this method to refine.

But......

This kind of consumption also makes Nian Chen feel unbearable!

But at this point, it's impossible to give up!

Nian Chen gritted his teeth violently, and was shocked again......

The little essence and blood left in the body was directly consumed and half of it was melted into the illusion of the Heaven and Earth Oven.

The oven is red again, just not as bright red as the first time!

Moreover, Nian Chen also found that half an hour of continuous driving of the Heaven and Earth Oven Phantom, and most of the mana in his body had been consumed!

Therefore, just now, half of the essence blood, Nian Chen only integrated two-thirds into the illusion of the Heaven and Earth Oven, and the other third turned into mana......

This is already the limit of essence blood and mana.

If you still can't refine the mountain and sea pearls this time, you can only give up.

Nian Chen secretly prayed in his heart - he must succeed, he must succeed!

The situation he is facing can no longer tolerate this kind of loss of losing his wife and soldiers.

If you can't refine the Mountains and Seas, then there is no way to talk about the cultivation that you have added, and it will consume more than half of the essence and blood in your body, and your strength will be greatly damaged......

In this case, if you encounter the Zhao family brothers and sisters to kill, you will only have to wait for death!

Fortunately, the ensuing refining went smoothly.

Ten minutes later.

When the Celestial Oven Shadow Turns into Primary Color Again......

In Nianchen's heart, an extremely clear mental connection suddenly emerged.

This connection comes from the mountains and seas in the oven of heaven and earth, and it is difficult to part with blood relatives.

"It's done!"

Nian Chen cheered in surprise, and then directly stopped the operation of the Heaven and Earth Oven Phantom.

The mana was depleted again, and the mental power also became weak with the consumption of essence and blood, and it was also almost consumed.

If it still can't be refined for another minute, then this action of sacrificing the Mountains and Seas Pearls can only end in failure......

Sigh!

Nian Chen let out a sigh of relief, and then he was extremely weak.

I'm so tired!

But deep down, I was very excited.

After a short rest, Nian Chen immediately grabbed the mountains and seas in the air, and a smile appeared on the corner of his mouth.

"Baby, it's up to you whether your strength can skyrocket this time!"

The idea locks on the mountains and seas......

The next moment, the figure of the year was lost in the same place, and only a bead the size of a thumb remained, which fell to the ground and rolled into the middle of a dead leaf to hide......

"Damn, this ...... This is the world of mountains and seas?"

"How do I feel like I'm back in the Cave Heaven Valley, where Master often retreats and cultivates!"

Nian Chen's eyes widened as he looked at the world in front of him.

He was still standing in the valley, and in the mountain col in the distance, that golden and brilliant "palace" was not the cross-domain teleportation array that Master had spent thousands of years building?

There are also colorful butterflies flying in the valley, as well as a dazzling array of fruity flowers and trees......

This familiar scene is exactly the same as the cave world where I used to retreat!

Even the grass under his feet is no different from that year, and the small open space without grass not far away is where the master often meditates......

Stunned, he stared at it silently for a while.

Nian Chen finally reacted.

It seems that before the master destroyed the Cave Heaven World, he actually moved the entire valley where the cross-domain teleportation array was built to the Shanhaizhu World!

Of course, in addition to this valley, there are also endless spiritual energy, which has also been transported to the world of mountains and seas.

Looking at the billowing fog and spiritual tide of the aura around him, Nian Chen even wondered if the master had transported the aura in the entire Dongtian World to the Shanhaizhu World!

But on second thought, that's impossible.

The cave world is a real world, and it is the unexplored kind.

After all, Shanhaizhu is just a super-large space, with its own limits, and it can't be compared to the real Dongtian World at all!

Nian Chen couldn't help but drive the flying boat and shoot towards the air outside the valley......

Come to the top of the valley.

I saw that in all directions outside the valley, there was a rolling aura, and there was no end in sight, and there was no other scenery in sight.

The valley and the surrounding peaks that Master had brought in had become the only place in this world where there was no other life.

Not even the beast roar that often sounded outside the valley of the Cave Heaven World, the whole world was silent......

Suspended silently in the air, a look of remembrance appeared on his face.

In Nianchen's mind, the sloppy and greasy figure of the master came to mind, so kind, so clear, but ...... So far away.