A hint of curiosity flashed in Gu Qiyue's eyes, but he didn't ask.

"Thunder Emperor Secret Realm!"

Li Yi muttered to himself in his heart, feeling extremely shocked.

Before, he didn't understand why he would enter this strange world after opening the Heavenly Detention Mirror, and it wasn't until he came to this thunder pool that he suddenly realized.

It turns out that this world is actually the legendary Thunder Emperor's secret realm!

He once heard his master Ling Songzi say that in the secret realm of the Thunder Emperor, there is a Thunder Pool, which is a test set by the Thunder Emperor, and only by passing this test can he have the opportunity to obtain the Thunder Emperor's inheritance treasure.

And the Heavenly Mirror is precisely the key to unlocking the Thunder Emperor's secret realm.

Li Yi hesitated for a long time, not knowing whether to step into the thunder pool. You must know that even a supreme powerhouse like Dao Qing has fallen in the Thunder Emperor's secret realm, Li Yi asked himself that his strength is still far from Dao Qing, if he rashly steps into the Thunder Pool, I am afraid that it will be difficult to escape the doom.

However, if he didn't, he wouldn't be able to leave the Thunder Emperor's Secret Realm.

If you want to reopen the secret realm of the Thunder Emperor, you can only get the inheritance of the Thunder Emperor, otherwise you can only live here, which Li Yi cannot accept.

Thinking of this, Li Yi finally made up his mind, took a deep breath, jumped into the thunder pool.

Since he entered the secret realm of the Thunder Emperor by mistake, there is no reason to return empty-handed, as long as he can get the inheritance of the Thunder Emperor, then his strength will be greatly improved.

Among the inheritance of the Thunder Emperor, there is a Thunder Emperor Relic and an Immortal Rank Exercise.

The temptation of these two things is huge, even Dao Qing can't resist it, and finally died here, although Li Yi has the experience of Dao Qing's past, but he is not exempt from vulgarity.

He jumped into the thunder pool, and in the blink of an eye, he was swallowed by the thunder and disappeared without a trace.

Gu Qiyue was first taken aback when he saw Li Yi behaving like this, and then secretly sneered: "No matter how strong you are, how can you compete with this thunder pool?" At the same time, he also felt strange: "This kid is so good, why do you want to do such a life-fighting act?"

Let's say that Li Yi sank into the thunder pool, and suddenly ten thousand thunders bombarded, and hurriedly urged King Kong not to break the supernatural powers, and sacrificed his natal law to protect his body, but Rao is so, it is still difficult to resist the bombardment of ten thousand thunders.

Every thunderbolt was extremely violent, like an ancient evil dragon, roaring and wanting to tear Li Yi to pieces, but after a while, cracks began to appear in his natal appearance.

Li Yi hurriedly swam to the depths of the Thunder Pond to find the Thunder Emperor's inheritance treasure.

Before he could find out, the natal law suddenly boomed, and was completely shattered by countless thunders, and one after another thunderbolts fell on his body.

"Ahh

He cultivated the Shenxiao Thunder Dao Sutra, and there was already a trace of thunder power in his true qi, but it blended with the surrounding thunder, which helped him delay for some time, but as time went by, the thunder still broke through the true qi of the body protection and drilled into it from the thousands of pores around his body.

A trace of tiny thunder entered Li Yi's body, destroying his internal organs, his skin gradually turned purple, his eyes flashed with thunder, and thunder and lightning erupted from his nostrils, like a thunder god.

But the pain of thunder erosion is unimaginable to ordinary people.

Li Yi has suffered countless pains, but compared to the pain at this time, it is all a small thing. Thousands of thunderbolts burrowed into the body at the same time, what kind of taste is this?

He only felt that his whole body was numb, as if his soul had been out of his body and he could not feel the existence of the physical body.

"The test set by the Thunder Emperor is really extraordinary, I am really careless!" Li Yi faintly regretted that he should not impulsively jump into the thunder pool. He originally thought that his true qi was strong, his body was strong, and he could not be afraid of thunder, but he didn't expect that the power of the thunder in this thunder pool was much stronger than the naturally formed thunder.

But the matter has come to this point, and it is useless to regret it, Li Yi opened his mouth and spit out, and sacrificed the Lei Zun sword.

Previously, in Shenxiao Sect, Lei Zun Sword was injured by Gu Qi Yue's Hundred Eyes Divine Sword, and he entered Li Yidantian to cultivate for a period of time, and now he has basically recovered his strength.

The Lei Zun Sword circled and flew around Li Yi, slashing towards the surrounding thunder, and every time he cut down a thunderbolt, he devoured it, like a dragon entering the sea, indescribably free.

This time it was a big surprise to Li Yi.

He didn't expect that the original Lei Zun Sword still had the ability to devour thunder, and after devouring hundreds of thunders, the Lei Zun Sword faintly underwent a slight transformation, the edge was sharper, the strength was more fierce, and the speed of flight was getting faster and faster, almost not even visible to the naked eye, only a wisp of afterimage.

Gradually, the Lei Zun sword flew faster and faster, as if it had become a sword cocoon, wrapping Li Yi in it, and the thunder around him was all resisted by this sword cocoon, and Li Yi could not be hurt in the slightest.

Li Yi was overjoyed, calmed down, urged the Shenxiao Thunder Dao Sutra, and made every effort to refine the power of thunder in his body.

The Shenxiao Thunder Dao Sutra can also refine the thunder and improve the cultivation, Li Yi has tried many times in the outside world, although there is a lot of danger every time, but in the end, all the dangers are turned into dangers, and the power of the thunder is integrated into the body, on the one hand, the body is strengthened, and on the other hand, the true qi is transformed.

However, in the face of the thunder in the thunder pool, Li Yi was struggling.

The thunder in this place is extraordinary, even if there is only a wisp, it is extremely tenacious and violent, every time Li Yi wants to refine, he will encounter great resistance, not only does he not make any progress, but he is eaten by the thunder, which aggravates the injuries in his body.

Li Yi tried dozens of times, but all in vain, he had no choice but to give up, and suddenly swallowed the Lei Zun Sword in one bite, and with the help of the power of the Lei Zun Sword, he devoured the thunder in his body.

Under the sweep of the Lei Zun Sword, the thunder in Li Yi's body was immediately devoured and his freedom was restored, but without the Lei Zun Sword to protect his body, his body was blown open by the thunder, and he was miserable.

"I must find the Thunder Emperor Inheritance as soon as possible, otherwise my body will be blasted to pieces sooner or later!" Li Yi felt a strong crisis, urging the wind supernatural power, and the wind around him was fierce, searching deeper into the Thunder Pool.

This thunder pool, I don't know how many tens of thousands of zhang deep, Li Yi flew deep for a long time, and still did not see the bottom, as if there was a bottomless abyss below, all the way to hell.

And during this period of time, Li Yi was already covered in bruises, and the Lei Zun Sword protected his body, but he couldn't protect the surface of his body, and the scorched black scars were all over his body, and there was even a faint smell of roasting. The tiny thunder at the wound kept flickering, like a poisonous snake, constantly eating away at Li Yi's body.

Li Yizheng was feeling anxious, and suddenly a dark shadow appeared in the depths.

"It's finally over!" Li Yi was overjoyed, thinking that it was the land under the thunder pool, so he hurriedly increased his speed and fell sharply, but when he got closer, when he saw the true face of the black shadow, Li Yi was shocked.

Where is the land, it turned out to be a black thunder.

Compared with the violent and ferocious purple thunder above, this black thunder seems to be very quiet, only flickering slightly, and the thunder emitted is not as terrifying as the purple thunder, just like raindrops, squirming.

But the more this is the case, the more it exudes a strange aura, which makes people dare not approach.

Li Yi's body stopped suddenly, and he was puzzled in his heart: "Why are there two kinds of thunder in this thunder pool? Is it for the Thunder Emperor to set such a test to hone future generations, or to kill people?"

He just glanced at it from a distance, and he could feel that in the black thunder, there was a faint dormant terrifying power, a hundred times more powerful than the purple thunder, if he rushed deeper, he was afraid that there would be no bones left in an instant.

Li Yi really couldn't think of any way to pass such a test, and if he continued to stay, it would only be a dead end, but he finally passed through the purple thunder area tens of thousands of feet deep and endured a lot of suffering, and if he wanted to leave, he would be too unwilling.

"Just try once, if it really doesn't work, turn around and go back!" Li Yi thought secretly, gritted his teeth, and stepped into the black thunder.

The next moment, Li Yi regretted it.

The black thunder was like a sleeping dragon, awakened by Li Yi's kick, and suddenly roared and boomed, becoming extremely violent, entangled Li Yi's feet and wanted to pull him down completely.

Li Yi hurriedly retracted his feet, but where could he get them back? In the blink of an eye, the whole person was engulfed by black thunder. Black thunder is a hundred times more powerful than purple thunder, and its methods are even more bizarre, constantly changing in various shapes, sometimes swords, guns, swords, halberds, slashing at Li Yi's body, sometimes it is a spirit beast, tearing his limbs and head.

Li Yi desperately urged the Lei Zun Sword to resist the erosion of the black thunder, but with the power of the Lei Zun Sword, it was also defeated in front of the black thunder, it could devour the purple thunder, but it could not swallow the black thunder, but was beaten by the black thunder to dim the light, fled in the wilderness, and hid in Li Yi's dantian again.

No matter how Li Yi summoned it, Lei Zunjian didn't respond.

"Greedy for life and afraid of death!" Li Yi was shocked and angry, he didn't expect that even a Dao weapon like Lei Zunjian, who had experienced countless calamities, would be so frightened by the black thunder that he didn't dare to fight.

Without the help of Lei Zun's sword, Li Yi's situation was even more precarious, and his physical body gradually showed signs of collapse.

"Do I really want to die in this place?" Li Yi was really unwilling, roared angrily in his heart, and struggled desperately, but no matter how he struggled, it was in vain.

His body had already been bitten by the black thunder, and he couldn't move anymore.

A black thunderbolt turned into a skull, opened its big mouth, and bit Li Yi's neck fiercely.

Li Yi was discouraged.

But at this moment, the skull suddenly exploded and disappeared without a trace. Then the surrounding black thunder exploded one after another, and the spirit birds and beasts that bit Li Yi all fell apart.

Li Yi was in a desperate situation, he couldn't help but be surprised and happy, and when he looked intently, he saw a white-haired old man walking slowly from a distance.

After seeing the old man's appearance clearly, Li Yi's eyes suddenly widened in disbelief.