Yun Yi flew all the way, circling back and forth, naturally attracting the attention of all kinds of wild ghosts on the road.

These big ghosts are all relatively powerful existences in the underworld, and seeing that this ghost bird of unknown origin can't stop provoking on their own territory, they suddenly couldn't bear it anymore, and began to chase and intercept Yun Yilai.

Yun Yi didn't entangle with them too much, and when the big ghost was about to surround him, an immortal technique broke through the air, and instantly broke through the encirclement of all the ghosts, and disappeared in a blink of an eye, leaving only all the ghosts screaming together.

Yun Yi's travel speed was very fast, and in just over ten days, he came to the Southern Wilderness of the Underworld, which was already very close to the Wild Ten Thousand Ghost Caves.

The flying boat of the four daughters of the Blood Spirit Princess was also moving forward at a very fast speed along the way, perhaps because they had the deterrence of the sign of the Underworld, and there were no wild ghosts to harass them.

But along the way, they saw the riots of the big ghosts along the way, which made them all frightened, and they really didn't understand what these wild ghosts were crazy about, and they were so irritable.

Ji Qing regretted it a little, Yun Yi let them stay in the immortal mansion and be taken away by him, but she still thought that this trip was a sightseeing trip, and resolutely disagreed, wanting to see the scenery outside the underworld, but it turned out that just these hideous ghosts scared her from time to time, and she felt a nightmare.

Yun Yi had actually been using his divine sense to investigate them, and he didn't let this flying boat leave his divine sense, but the four of them didn't know it.

It's so dangerous, they finally arrived in the Southern Wilderness.

When he saw Yun Yi again, even if she was as strong as the Blood Spirit Princess, she couldn't help but breathe a sigh of relief in her heart, and she could be regarded as having completed this exciting journey to the underworld.

Yun Yi and the others collected the flying boat, and then the four of them rolled up and flew towards the depths of the wilderness together.

"Seventh brother, it turns out that you can become a big bird here, then you still let me wait to be frightened by those big ghosts, you are really bad. ”

Ji Qing, Princess Blood Spirit, and Princess Blood Moon sat on the back of the Dapeng Bird that Yun Yi had turned into, and said with some resentment.

At this time, Yun Ji has returned to her body, which is her unique special treatment, and she can stay by Yun Yi's side at all times.

"Hehe, this is to let you know the dangers of this world, if you don't work hard to cultivate, it will be difficult to move anywhere!"

Yun Yi suddenly came to a sudden halt and stopped at the top of a high mountain in the wilderness.

It is surrounded by high mountains, with a valley in the middle, forming a trend surrounded by mountains.

"Seventh brother, what are you going to do?"

Yun Yi recovered his body, and Ji Qing hurriedly came to his side and asked.

"Hehe, naturally we want to exterminate all the wild ghosts here.

This is a natural transcendence field, which can make these wild and wild ghosts disappear, Seventh Brother, my merits are immeasurable!"

Yun Yi pointed to the valley at the bottom of the mountain and said.

The Blood Spirit Princess and the Blood Moon Princess hurriedly looked down, it was just a very ordinary valley, and they couldn't see any difference.

"Ahh

Seventh brother, did you deceive me again and want to use thunder to slash me?

I can tell you, if you strike me with thunder again, I'll jump from here!"

Ji Qing immediately understood what Yun Yi meant, hurriedly took a step back, stood with the Blood Spirit Princess, and then shouted angrily.

"Huh!

Qing'er, Seventh Brother, how could I do such a thing, but you're right!

Seventh brother, I have learned another spell, which will definitely be useful to you in the future, but it will not be used on you now. ”

Yun Yi hurriedly explained to Ji Qing that he felt that Ji Qing was very afraid of his Thunder Refining Technique.

"Huh, are you serious?"

Ji Qing was relieved, but she still asked.

"Naturally, it's true, Brother Seven, I'm going to be struck by lightning this time, how can I still hack you!"

Yun Yi took out the Supreme Euphorbia and began to prepare.

"Gege, that's great, but you have to split a few more times, and it's better to split your black charcoal head into charcoal!"

Ji Qing shouted happily and moved away from Yun Yi a little further.

"Huh!

Qing'er, it's not here to split, what are you afraid of, you all come here, if there is an accident, we can leave quickly. ”

Yun Yi beckoned to the three women, signaling them to come closer.

"Huh?

What do you mean?"

Ji Qing hurriedly pulled the blood spirit, and the second daughter of the blood moon approached Yun Yi and asked extremely worriedly.

"It's the first time I've used this thunderbolt brother, I don't know if there's anything special about it, so it's better to be careful. ”

Yun Yi responded, casually throwing the Supreme Euphorbia towards the valley bottom below.

"Immortal Magic: Thunder!"

Yun Yi roared, and a magic trick was used, following the halberd.

A black light lit up, and then eight black lights followed, and quickly hit the halberd's body, but the thunder light was too small, and soon disappeared again.

The Supreme Euphorbia was fast, getting bigger and bigger in flight, thrusting fiercely upside down in the valley, and then growing bigger and taller, and soon became a pillar of optimus, far exceeding the height of the mountain where Yun Yi was located.

Yun Yi kept his hands and kept casting the Thunder Immortal Technique, and soon the halberd was wrapped in a layer of black thunder light, and it began to make some changes.

"Brother Qi, what kind of thunder is this, how is it black light?"

Although Ji Qing guessed that it was Yin Thunder, he couldn't be sure, after all, the existence of Yin Thunder was too mysterious, and he had only heard of it before, but he hadn't seen it with his own eyes.

"It's Yin Thunder, which can often be seen in the underworld. ”

The Blood Spirit Princess also looked strange, and answered Ji Qing's inquiry for Yun Yi.

"Strange, this thunder is obviously rootless, if you want to form a thunder waterfall, you must attract the thunder of the underworld, but where is the root of this underworld?"

After Yun Yi had performed the Thunder Technique countless times in succession, he couldn't help but wonder when he saw that he still couldn't attract the Void Thunder Waterfall.

"Well, Ling'er, you said that this thunder is common in the underworld, do you know how the thunder is generated?"

Yun Yi stopped releasing the thunder and turned to ask the Blood Spirit Princess.

"Childe, I don't know about this, but I've heard His Majesty say it before: Lei is born from the heart. ”

The Blood Spirit Princess thought for a moment and gave Yun Yi a vague answer.

"Thunder is born from the heart?"

Yun Yi muttered, a little confused.

"Ahh

Seventh brother, there are ghosts there!"

Ji Qing suddenly jumped up, pointed to a pile of stones in the valley and shouted.

Yun Yi and the second daughter looked towards the place where Ji Qing was pointing, and there were indeed some big ghosts hidden in the pile of stones, watching the movement of the halberd.

It seems that there are also big ghosts in this valley, and the halberd fell from the sky, causing these big ghosts to watch and intend to seize this precious weapon.

Yun Yi raised his hand and pointed at it, and the Supreme Euphorbia emitted a black light, enveloping the pile of stones, and under the explosion of yin thunder, all the big ghosts turned into flying ashes.

When all the great ghosts disappeared, the thunder light reversed and returned to the Supreme Euphorbia.

The Blood Spirit Princess and the Blood Moon Princess were dazzled, they didn't expect this halberd to be so powerful, and they would kill these hideous giant ghosts into ashes in an instant.

"Seventh brother, your black thunder seems to be more powerful than white thunder, you went out a little bit, and came back with a large piece!"

Ji Qing seemed to have discovered something new, and pointed to the halberd and said.

Yun Yi was stunned for a moment, carefully recalled the scene of the halberd killing the ghosts just now, and a little spiritual light suddenly flashed in his heart.

"Ahh

I see!"

Yun Yi exclaimed, and stretched out his hand to point at the supreme halberd, which flew up quickly, and returned to its original size in the blink of an eye, returning to Yun Yi's hand.

"Qing'er, you really have unparalleled luck!

Brother Seven, I understand, I need to change places!

Ling'er, where is this Ten Thousand Ghost Cave, is there a lot of evil ghosts there?"

Yun Yi praised Ji Qing, and then asked the Blood Spirit Princess.

"Childe, it should be the center of the wilderness, you can just fly all the way forward.

When you get there, you will naturally be able to identify, it is said that there are countless ghost kings there, and it is the most terrifying place in the underworld. ”

The Blood Spirit Princess hesitated for a moment, but her concern was still obvious.

"Hehe, don't worry, there is no danger here!"

With a wave of his hand, Yun Yi put the three girls into the Zihua Immortal Mansion, and placed the Zihua Immortal Mansion in Yun Ji's body, hiding it on the jade on his forehead.

After all this was ready, Yun Yi flew up, transformed into a black Dapeng bird, and began to hover and fly in the wilderness.

This time, he had the intention of provoking the ghosts, flying at a low altitude, screaming and screaming, and from time to time releasing some low-level spells, harassing the evil ghosts he saw back and forth.

Under such disorderly harassment, soon a large number of evil ghosts gathered behind the black Dapeng bird, and they headed towards the Ten Thousand Ghost Caves in the center of the wilderness.

After three days like this, Yun Yi finally led the evil ghosts along the way to the Ten Thousand Ghost Cave.

Naturally, there are countless evil ghosts entrenched in the Ten Thousand Ghost Caves, and there are also many giant ghosts at the level of the Ghost King.

As soon as they saw so many ghosts appearing, they thought that there were ghosts coming to grab the territory of the Ten Thousand Ghost Caves, and they immediately began to gather, preparing to fight these foreign ghosts.

As soon as Yun Yi saw such a good opportunity, he suddenly came to his senses, and several immortal techniques were launched in the air, and he came to the core area of the Ten Thousand Ghost Caves.

There is a huge mountain cave here, and it must be the place where the Ten Thousand Ghost Caves are referring to.

Surrounded by mountains, I don't know how many ghosts are hidden in these caves.

Yun Yi took out the supreme halberd, threw it violently, and slammed it upside down in the mountains where the demons were most dense.

The Supreme Euphorbia grew rapidly, and Yun Yi's Thunder Technique also continued to hit the Euphorbia, triggering the Yin Thunder that the Euphorbia had already stored in some and began to release it in all directions.

As the black light of the dark thunder continued to appear, the dull sound of the thunder explosion sounded repeatedly, and the howling and roaring sounds of various ghosts and monsters were also mixed, making this mountain a purgatory-like scene.

At this time, no ghosts paid attention to the movements of the black ghost birds transformed by Yun Yi, and they all began to run around, trying to avoid the increasing black thunder.

Yun Yi came to a mountain peak very leisurely and watched his masterpiece.

The root of the thunder of the underworld is indeed the soul power of these ghosts.

After the thunder was triggered, these black lights were nourished by these lonely souls and wild ghosts, and became more and more numerous, and finally formed a thunder waterfall.

And as time slowly passed, it became uncontrollable, and eventually swept through the entire Ten Thousand Ghost Caves, turning the Ten Thousand Ghost Caves into a sea of thunder.