Lei Yu sat on the shore, concentrating, in front of him, a yellow hill flickered, and puffs of black smoke rose from the hill, clearing the impurities on these auxiliary materials.

Although the "Nine Shadows Yellow Spring Thunder" is not as good as the Yellow Spring Water, it is also an extremely powerful Qi Thunder, and it is certainly not a problem to remove the impurities of these auxiliary materials.

Time is slowly passing, and the yellow hill in front of Lei Yu is also gradually shrinking, which is the result of the removal of impurities, although the volume of the hill is not as good as before, but the light emitted is more brilliant, like gold, not like the previous with a sickly color.

When the size of the hill shrank to half, Lei Yu finally opened his eyes. There was a look of satisfaction in his eyes, and his divine thoughts were attached to these auxiliary materials, and he was naturally clear about the removal of impurities from these materials.

The "Nine Shadows Yellow Spring Thunder" is indeed the main cultivator of the Hell Demon Sect, Qi Lei, and it also has a great effect on removing impurities, and all these impurities are cleaned up in a short period of time.

"Open!"

Lei Yu got up and said lightly.

As his voice fell, the golden light of the mountain-like auxiliary materials became even brighter, but then the light disappeared, and a pile of materials of various colors appeared in front of Lei Yu.

This pile of materials is significantly smaller than before, and some of the materials have even shrunk severely, only the previous ones are average or even less. However, Lei Yu understands that these are the essence parts, and using these materials to refine the Abyss Spear will also increase the success rate to a certain extent.

With a wave of his hand, this pile of materials was directly put into the space bag by Lei Yu. There was a hint of deep groaning in his gaze, and he looked at the Nine Shadows Sea in front of him.

The black sea calmed down, and the Sea of Nine Shadows was like an oversized stone inkstone, filled with ink, dyeing everything inky black without the slightest brilliance.

However, this stone inkstone is not ordinary. The Sea of Nine Shadows in the "Nine Nether Thunder Bells" is only 9,900 miles long, which is like a small point compared to the Sea of Nine Shadows in the Hell Underworld, but no one dares to ignore the Sea of Nine Shadows here.

This is the Nine Shadows Sea personally arranged by the Nine Shadows Emperor, which is full of dangers, and there are countless ghost beasts coiled in the sea, even if the strong people of the Thunder Infant Stage enter it, they may not be able to get out.

"Boy, what are you going to do next?"

Yin Ming asked, although Lei Yu said that he would refine the Abyss Spear with the method of water refining, he didn't know how Lei Yu refined the Abyss Spear, so he asked this question.

"The method of water refining, of course, is to be refined with water, isn't this Nine Shadows Sea the best place to cultivate? Senior, you are guarding me by my side, I want to enter the bottom of the Nine Shadows Sea to refine the Abyss Spear. ”

Lei Yu's eyes burned, and a golden light emerged, full of confidence. He had already thought that there were only a handful of spiritual water in the world that could be used to refine the Abyss Spear, and the seawater in the Nine Shadows Sea was one of them.

And among the seawater of the Nine Shadows Sea, the best quality is of course the water at the bottom of the Nine Shadows Sea, so Lei Yu has to enter the Nine Shadows Sea for refining.

This was an adventure, and no one knew what was at the bottom of the Nine Shadows Sea, and Lei Yu was sure that he would encounter many difficulties. However, if the Abyss Spear could be refined at the bottom of the Nine Shadows Sea, the power of the Abyss Spear would naturally be unimaginable.

"Boy, wait a minute......

Yin Ming showed a look of anxiety on his face, and he wanted to say something, but he couldn't say anything more halfway through his words, because Lei Yu had already turned into a yellow light and entered the Nine Shadows Sea.

"Bang!"

A soft sound came from the Sea of Nine Shades, and the originally calm Sea of Nine Shadows rippled, spreading in circles and going straight to the surroundings.

"Hey, this kid is really nonsense, don't you know how dangerous the bottom of the Nine Secluded Seas is? Forget it, this time it seems that this kid wants to refine the Abyss Spear, so I'll help him. If there is any danger, I can rush to it as soon as possible. ”

Yin Ying was angry for a while, but there was nothing he could do, Lei Yu was cutting first and then playing, and he couldn't stop it with his speed, and now Yin Yin also entered the Nine Shadows Sea.

"Is this the bottom of the Nine Shadows Sea?"

A darkness shrouded him, and at the bottom of the Nine Shadows Sea deep in the depths of Thunder Feather, there were bursts of cold aura surging towards him all around, wave after wave, endlessly, as if they were going to freeze him into an iceman.

The bottom of the Nine Shadows Sea is not much different from the surface of the sea, it is the same black, but it is a little thicker. If the Sea of Nine Shadows above the surface of the sea is light ink, then the bottom of the Sea of Nine Shadows is thick ink, and there is hardly anything to see, and there is only a thick black in the eyes.

And, from time to time, streams of filth poured around him, threatening to invade his body. Although it was said that with Lei Yu's current strength, he was not afraid of these filthy things at all, but he still felt a little upset, and he had to put a layer of yellow barrier around his body, not only to prevent the infection of these filthy things, but also to keep warm.

Lei Yu entered the Sea of Nine Secluded Shadows, and gradually sank towards the Lu, five zhang, ten zhang, fifty zhang, one hundred zhang...... Lei Yu sank deeper and deeper, and the darkness on all sides became heavier and heavier, and when he reached the closest, even if his divine thoughts could only reach a distance of three zhang in a radius, let alone his eyes, he could only be regarded as blind.

"It's so cold!"

After sneezing to a depth of hundreds of zhang, Lei Yu finally stopped. He hesitated a little, because the sea here was too cold, and even if he used thunder to protect himself, he still felt a bone-chilling cold.

This cold was pervasive, not only his body, but even his thunder power began to stagnate, some of them did not move, and the efficiency was only half of what it was before.

Not only that, but when he reached this place hundreds of zhang deep, the pressure on Lei Yu also increased exponentially, he felt like he was being half pressed by a huge mountain, his chest was a little stuffy, he couldn't breathe, and the consumption of thunder power increased even more.

Although he was conceited that his natal thunder power was extremely strong, in this place hundreds of zhang deep, Lei Yu also felt a little uneasy. Without him, the consumption rate of thunder power is too amazing, even he, who doesn't pay much attention to thunder power, is a little unbearable.

"This is it, any further down, my body can't bear it. ”

Lei Yu's brows furrowed slightly, his eyes looked at his feet, a dark abyss shrouded in it, as if some undersea beast was lurking in it, and a sense of fear inexplicably rose in his heart.

Seven hundred zhang is already the deepest he can dive, and if he goes any further, I'm afraid he will be in danger, after all, this is not on land, but in the depths of the seabed, and if you are not careful, you may never be able to go up again.

"Boy, you really don't want to die, if you can't cultivate, you want to break into the bottom of the Nine Shadows Sea, do you want to die?"

An angry voice came into Lei Yu's mind, the tone was eager, but it made him feel a burst of warmth, because this person was none other than Yin Ming.

Waves of Lang rushed towards Lei Yu, and soon, an old man with black hair but a wrinkled face appeared less than ten zhang away from Lei Yu, not someone else.

I saw that Yin Ming's face was full of anger at this time, as if he was going to do it at any time, and a wave of evil qi emanated from Yin Ming's body, which made Lei Yu also feel frightened.

Yin Ming was really angry this time, Lei Yu's practice of cutting first and then playing later undoubtedly annoyed him, even if he spoiled Lei Yu again, he had to take this opportunity to teach Lei Yu a good lesson.

"Senpai!"

Lei Yu said with a grimace, he also knew that Dao Yin was angry, and he didn't dare to say anything. This time he was indeed too reckless, and it was normal for Yin Ming to punish him.

"Boy, do you feel that your wings are stiff, and you even dare to break into the bottom of the Nine Shadows Sea, don't you know how dangerous the bottom of the Nine Shadows Sea is? With your current strength, entering the bottom of the Nine Shadows Sea can only be sent to death. ”

With a calm face, as the instrument spirit of the "Nine Nether Thunder Bells", he certainly knew the danger of the Nine Nether Sea. It's already dangerous above the surface of the sea, let alone at the bottom of the Nine Shades Sea!

It can be said that it was Lei Yu's luck that he was able to dive to a depth of seven hundred zhang without encountering danger. If other cultivators entered the Sea of Nine Shadows, they might have already died, after all, not everyone cultivated the "Nine Shadows Yellow Spring Thunder" like Lei Yu.

"Senior, I just want a better refining abyss spear!"

Lei Yu said quite aggrievedly, it was for the sake of the Abyss Spear that he was willing to venture into the bottom of the Nine Shadows Sea and wanted to use the best Nine Shadows Water to refine the Abyss Spear.

"Humph!"

Yin Ming snorted coldly and ignored Lei Yu, but then his face changed slightly, and he suddenly shouted at Lei Yu: "Run!"

The sound of Yin Ying was urgent and fast, which made Lei Yu a little confused, but then he felt a sense of danger coming from behind him, and a cold air enveloped him, and his body was a little immobile.

"Buzz!"

Bursts of buzzing sounds like bees came from behind Lei Yu, endless, piercing, mixing the surrounding water.

Waves of fluctuations came towards Lei Yu, making his body can't help but shake for a while, even the most stupid person feels abnormal, let alone Lei Yu.

He didn't turn his head, his thoughts drifting behind him. In an instant, a shadow formed in his thoughts, which was very terrifying.

This is a group of fish that Lei Yu has never seen before, I saw that their whole body is silvery-white, the fish head seems to be swollen, huge, at least one third of the whole body, it is a veritable big-headed fish.

And considering that these fish are a foot long, you can imagine how big the head is.

This school of fish was dense, and Lei Yu roughly estimated that there were at least thousands of fish, all of which opened their silver teeth wide and rushed towards Lei Yu, as if they were going to dismantle him and tear him to pieces.