After nine thunderous roars in succession, the thunderclouds in the sky did not dissipate, but became more and more condensed, and the black and oppressive sky only made people feel extremely depressed, as if something terrifying was brewing in the clouds.

On the ground, Gao Yin, who had been subjected to the "bombardment" of nine thunder tribulations one after another, still had a trace of small electric arcs flashing on his body from time to time.

But whether it was clothes or hair, there was not a little bit of damage, obviously these nine thunder tribulations were not able to hurt him, but instead helped him complete the final feathering steps.

At this time, Gao Yin's body was as transparent as a mirror, and every drop of flesh and blood in his body was extremely pure and contained extremely terrifying energy, and he couldn't see the appearance of the previous mortals at all.

At this time, on the attribute panel, the column of exercises has not changed, it is still the fifth layer of the Luo Tian Dao True Sutra, but it is completely different in the realm column.

[Name: Gao Yin.]

Identity: Pure Mind Contemplation Lord

Realm: Early stage of the Feather Realm

Exercises: Luo Tian Avenue True Sutra (5th Floor)

Spells: Death Mantra - Mastery, Demon Killing Spell - Mastery, Five Thunder Mantra - Mastery, Dutian Great Thunder Fire Mantra - Mastery, Earth Evil Spirit, Total Summoning Thunder Mantra - Beginner,

Fu Seal: Basic Fu Seal - proficient, Taishang Laojun mixed yuan three-part rune

Physiognomy: Mai Divine Physiognomy - Mastery

Good & Evil: 4200]

In the realm column, it has completely changed to the Feather Realm at this time, and the original seventy-two Earth Demons have completely disappeared from the panel and turned into a spell called Earth Evil Spirit, which is the product of the fusion of all Earth Evil Techniques.

But Gao Yin always felt that something was missing, and his eyes looked back at the dark clouds in the sky that had condensed into almost pitch black.

"Yuqing order, rob the gods!"

Rumble!!

The dark clouds suddenly rioted, and the electric snake, which was originally a small one, all turned into electric pythons with a thickness of more than one meter with the casting of Gao Yin, and even a dragon body was faintly emerging among them.

At this time, the Necronomicon no longer knew how far it had escaped, staring blankly at the pitch black in the sky, and then at the high seal that was casting a spell.

"You kid is really a madman, that's a thunder tribulation, everyone else is trying their best to avoid it, not only did you take the initiative to meet the nine thunder tribulations, but you also took the initiative to continue to improve the power of the thunder tribulation!"

The Book of Necronomicon feels like the longer it has been with Gao Yin, the more its cognition has been improving, and it is impossible to see where the end is.

Under the thunderclouds at this time, Gao Yin looked at the thunderclouds in the sky with a smile, and this time it was almost there!

Rumble!!

The dim and dull sky suddenly lit up, and a thunder dragon of hundreds of feet emerged from the thunderclouds.

Roar!!!

With the roar of the thunder dragon, countless thunderbolts fell from the sky, one, ten, twenty, each thunder was not weaker than the nine thunder tribulations that it had endured before.

But Gao Yin did not retreat but advanced, and rushed towards the thunder in the air!

Suddenly, the white light illuminated a radius of thousands of miles, and countless demons saw the scene here, but they didn't dare to approach at all, after all, the power of every thunderbolt was not something that the demons of the Domination Realm could deal with, and even a little closer, the aftermath would shock them to pieces, not to mention the thunder dragon and the group of pythons that appeared behind, even if it was an ordinary Demon God Realm here, I am afraid it would not be of any benefit.

After a long time, the white light dissipated, the thunderclouds in the sky disappeared, and the heavens and the earth returned to peace, but from this moment on, this area completely became one of the forbidden places of hell, and no demon wanted to come to this place, because they did not know if there would be thunder again.

As for the initiator of this matter, Gao Yin has already disappeared here with the Book of Necromancy, after all, if he doesn't leave, I don't know if other demon gods will come here.

Gao Yin seemed to have disappeared directly, and never appeared in any corner of hell again, until a month later, outside the city of Snake City, a man wearing a Taoist robe appeared at the gate of the city.

"Is this it? Where does Andumari live? ”

Gao Yin looked at the tall city tower in front of him, just this appearance, it was already much bigger than all the cities he had been to before, and the aura of the powerful demons around him was countless, just on this city wall, he had already found the aura of several commanders.

"Well, one of the top forces in hell, the scale of this city is okay, it's not at the same level as those cities you've seen before."

"The strongest commanders in those cities can only be ordinary demons here, and they can't be the commanders at all."

Gao Yin thought for a moment, the demon he had encountered before, the commander under Andumari, was indeed stronger than the other commanders he had recently come into contact with.

"It doesn't matter, after today, this place will no longer exist!"

One person and one book walked on the streets of the city, but the sound of their conversation did not attract the attention of the other demons next to them at all, and even Gao Yin frankly said that he wanted to destroy the city, and the surrounding demons did not react at all.

The Necronomicon looked around, "What power did you use, and they can't see us now?" Or is it simply unaware of our existence? ”

Since Gao Yin was promoted to the Feather Realm, the Book of Necromancy has been completely unable to see any of his conditions, you must know that he could see his whole body clearly before, but now he can't even see the skin.

"It's nothing, it's just that I have more understanding of spells, whether it's the effect of casting, or the speed of casting, there has been some improvement."

Gao Yin is an understatement, but it doesn't sound like this at all in the Book of Necronomicon, you must know that it is not a combat type per se, but a recorder of spells, so it knows itself about spells or something.

All the way to here from the outside, it didn't find any traces of the use of spells at all, but it had such an outstanding effect, you must know that just now after passing by a top leader, but still not being able to find their traces, this is enough to prove the magic effect of the spell that now shrouds the two.

Although it is said that there are spells with similar effects recorded on the pages of the book, it will never achieve such a magical effect after using it, even if it is performed by a demon god.

So there must have been some other changes in Gao Yin's body, but he didn't know much about the Taoist cultivation method, which made his heart itch very much, and he wanted to find out what the situation was.

Because it's very clear, if you can figure it out, it's a very important thing for it, and it should be able to raise its level as well.

"Is this it?"

One person and one book came to a huge palace, which was heavily defended, not to mention walking in, even a bug would be instantly crushed by these defensive demons when he came here.