This twenty or thirty zhang deep spiritual vein was already the maximum concentration he could absorb now.

If he went any further, not only would he not be able to easily refine the aura of heaven and earth, but he might even face the danger of blockage of his meridians.

Looking at the place, it seemed that the place he had reached now was just the beginning.

This spiritual vein was dim in front of him, and the end could not be seen at all where he was standing.

It's just that Feng Xiao vaguely sensed the layers of fluctuations coming from the depths.

It seems that in the depths, something exists.

Of course, with his current cultivation, he can't reach that depth.

Retracting his gaze and looking at the position where he was standing, the rock walls around this spiritual vein were also a little special, stalagmites and stalactites crisscrossed this wide spiritual vein path, and the entire spiritual vein was also rugged, and there were some small branches scattered around.

Now that he calmed down and observed, Feng Xiao also noticed that the scale of this spiritual vein was not small.

"Don't waste time, let's find some Wu Jing first. ”

Feng Xiao also had such a thought in her heart.

Although the surrounding heaven and earth aura is rich, it is still not as effective as Wu Jing, after all, what Wu Jing contains is not heaven and earth aura, but Wu Yuan that can be absorbed without refining.

And around here, looking at the Wu Jing that was almost everywhere, there were as many as thirty or forty of them that he saw now.

The Xiaoqiong royal family would come here to collect Wu Jing once every ten years, and the last time the Xiaoqiong royal family came to collect Wu Jing was seven years ago.

In just seven years, there is such a number of martial crystals, which is really worthy of being called a spiritual vein.

Without hesitation, Feng Xiao immediately took a step and came to the side of a martial crystal, immediately picked it up, sat down on the spot without hesitation, and began to refine this piece of martial crystal.

And just as he began to refine, a sudden thought filled his consciousness.

If it is said that the black bead can absorb and purify the Martial Yuan, then can it be used for cultivation to purify the Martial Yuan within the Martial Crystal?

After all, whether it was the Heavenly Thunder Fruit or the medicinal properties before, it seemed that it was because of this black bead that it had been purified.

With such thoughts, Feng Xiao also couldn't wait to try it.

Naturally, this time he didn't need to run that black bead to absorb it, after all, it would completely drain all the power in his body, and for such a non-lethal Wu Yuan, there was no need for him to use it in such a way.

After changing his thinking, Feng Xiao controlled these martial arts drawn from the martial crystals and merged them directly into the black beads.

This time, he was only trying to infuse a wisp of Wu Yuan.

After waiting for a moment, the black bead suddenly reacted, and the same wisp of Wu Yuan flowed out of it.

And in Feng Xiao's perception, the purity of this wisp of Wu Yuan was directly doubled.

At this moment, he felt a burst of joy in his heart.

If the purity of this martial element is doubled, then its utility will also be doubled. According to this calculation, refining one martial crystal is equivalent to refining two.

This kind of effect is definitely much higher than ordinary cultivation.

Subsequently, Feng Xiao no longer hesitated, and immediately began to continue to absorb the Wu Yuan within this Martial Crystal, merging into the black bead.

In about a quarter of an hour, according to the normal absorption speed, Feng Xiao was almost about to absorb this martial crystal.

And at this time, another thought popped up in Feng Xiao's heart.

He only realized now that the Evil Dragon Divine Bead, which had no energy in it, had been left to the side by himself for more than four months.

Since the Evil Dragon Divine Bead was able to contain such a strong energy before, could it be possible to store Wu Yuan?

This possibility is extremely high.

After thinking of this possibility, Feng Xiao also controlled the refined Wu Yuan and channeled it in the direction of the Evil Dragon Divine Bead.

Suddenly, the moment Wu Yuan touched the Evil Dragon Divine Bead, there was no hindrance at all, and he directly entered the Evil Dragon Divine Bead.

In an instant, after Wu Yuan entered the Evil Dragon Divine Bead, it caused Feng Xiao to tremble.

Then, his martial yuan deepened little by little, and the fluctuations began to spread, shooting into the Evil Dragon Divine Bead, and the entire aura also expanded rapidly.

And the entire storage space of the Evil Dragon Divine Bead has also been displayed in Feng Xiao's perception without any unknown.

This feeling also taught him that this method is practical!

For Feng Xiao, this is definitely the second surprise of Feng Xiao after the effect of the black beads just now.

The Evil Dragon Divine Bead can store Wu Yuan, so Feng Xiao doesn't need to care about Wu Yuan's absorption speed because of the level of the dantian.

Moreover, it can also be said that this is Feng Xiao's second dantian, except that he can't run Wu Yuan as he wants, but he can provide him with Wu Yuan as much as he needs when necessary.

With the current condition, he will definitely be able to carry out a sweep in this spiritual vein.

Thinking like this, he no longer hesitated, and immediately accelerated the absorption speed of Wu Yuan in his hand.

However, after a while, the Wu Jing in his hand had been completely absorbed by Feng Xiao.

Then, he stood up, and after looking around, he immediately held a piece of Wu Yuan in each of his left and right hands, sat down cross-legged again, and began to absorb it.

This time the absorption speed is definitely faster than the last time.

The degree of his meridians, because he has taken the Heavenly Thunder Fruit, so his meridians are also very flexible.

For the maximum absorption speed he was able to achieve at this time, the meridians could easily withstand it.

The two Wu Crystals were also thoroughly washed by Feng Xiao after about half an hour.

And after the last wisp of Wu Yuan entered the body, Feng Xiao also began to pay attention to the state of the Evil Dragon Divine Bead.

After having his Wu Yuan inside, he was also able to sense the state inside the Evil Dragon Divine Bead very easily.

There are only two more martial arts, but the Evil Dragon Divine Bead has hardly taken up much space.

It is enough to see how huge this evil dragon bead is.

I'm afraid that he has completely refined all the martial crystals he can get, and he can't fill this big hole at all.

At this time, a question began to appear in Feng Xiao's heart, where did the Evil Dragon Divine Bead come from.

Its existence is too special, and in the previous life, Feng Xiao traveled all over the world and only knew some myths and legends about it, and no one knew where it came from.

However, this is also the case with many things, so Feng Xiao does not intend to continue to delve into this issue.

The most important thing now is to absorb as many martial arts as possible from all over the world.

There was only one thought left in his heart, and Feng Xiao stood up again.

This time, he swept this spiritual vein on the main vein around him, and all the martial crystals were swept over, and he also took a total of more than forty martial yuan.

With such an amount, coupled with the purification of the black beads, it was enough to match the cultivation of the outside world for several months.

At this time, the guards outside the spirit vein were also a little stunned when they looked at his behavior.

However, because of Qiong Haolong's words, he did not choose to step forward to stop it.

After all, such a large amount of Wu Jing, if you want to take it without any waste, ordinary people can't do it without ten days and half a month. In addition, this is only on the main vein, and among the countless small branches around, this is only a small amount.

And Qiong Haolong only had to repay Fengxiao in his heart, but he missed a little.

Maybe ordinary people can't empty this spiritual vein, but Feng Xiao can't be considered a normal person at all.

In the following day and night, to the guard's amazement, Feng Xiao easily absorbed all the martial crystals, leaving only empty shells everywhere.

According to this momentum, I am afraid that one month is enough time to loot.

But after all, it was still due to Qiong Haolong's orders, and the man didn't dare to enter easily.

And Feng Xiao didn't know it.

When he frantically absorbed this martial crystal all over the world, he didn't know that these martial crystals had been precipitated for seven years. Moreover, it is even more predictable what will happen when the royal family comes to collect Wu Jing three years later.

Looking around at the clean Wu Jing that had been absorbed everywhere, Feng Xiao naturally didn't care too much.

After a brief rest, and after relieving his breath, his gaze locked on one of the wider branches.

As he took a step, he also walked in the direction of the branch.

Trample!

And at the moment when he walked to the entrance of the branch vein, his footsteps suddenly stopped.

At the same time, there was also surprise in his eyes.

"Lei Jing?!"