Leave the Library's underground realm.

Lin Fei directly entered the Secret Realm of Thunder.

Now, Lin Fei has been specially approved and obtained a token to enter the secret space at any time.

As long as Lin Fei needs it, he can enter it at any time.

However, the teacher guarding the entrance of the secret realm still has to register in advance.

After registering his name, Lin Fei obtained permission to enter the Secret Realm of Thunder.

I saw Lin Fei take out the secret realm key and devote himself to it with his soul thoughts.

In an instant, a swallowing force formed from within the secret realm key, opening a door to time and space in the void.

Lin Fei immediately rushed in.

In the next moment, time and space changed, and it appeared in the secret realm of thunder.

The second time he entered the secret realm of thunder, Lin Fei was already familiar with the road.

After stepping into the legend, Lin Fei's whole vision became different.

The secret realm of thunder that I saw again in my eyes had become a world where countless thunder runes had evolved.

"Huh? This secret realm of thunder is strange! The entire secret realm space is actually constructed of thunder runes! ”

Thunder Fu culture for space!

Thunder Fu culture for the mountains and rivers of the land!

Thunder Rune Culture is an Endless Thunder Beast!

The entire space, everything and everything, is made up of thunder runes!

"After stepping into the legendary level, I awakened the True Eye, although it is only one word different from the previous True Eye, it is a thousand miles wrong!"

Now Lin Fei's eyes can clearly see the traces of the laws of the universe and intuitively see the rune structure without the help of the system!

It's just one step away from seeing the real universe!

"The last time I entered the Secret Realm of Thunder, I almost climbed the Thunder Mountain, this time I must successfully reach the top!"

Lin Fei aimed at the Thunder Mountain at the end of the front and quickly escaped with his technique!

I saw that the thunder and lightning around Lin Fei kept bombarding his body, but even the shield around Lin Fei couldn't be broken!

A stick of incense time, thousands of miles away, is close at hand!

"Whew! This is the first time I have used the Thunder Escape Secret Technique, and sure enough, I have performed it in this Thunder Secret Territory, and the speed has increased several times! It's amazing! ”

"I have now cultivated the Thunder Realm, and the ordinary thunder power of this Thunder Secret Realm has lost its effect on me!"

"The last time I climbed Thunder Mountain, I discovered a secret! That is, the more you absorb the power of thunder here, the heavier your body will feel when you climb Thunder Mountain! ”

"If I use the Thunder Realm to block these thunder powers, then climbing the Thunder Mountain will be much easier!"

The Thunder Mountain in front of you looks like it's just a not very tall mountain!

But when you actually climb to the top of this mountain, you will enter the second floor!

There will be a second Thunder Mountain there, and when Pan goes up to the second Thunder Mountain, he will enter the third layer of space......

And so on and so forth!

It is not until you climb the ninth thunder mountain that you reach the real top!

That is the true apex of this secret realm of thunder!

With his previous experience, Lin Fei is familiar with the road!

Soon climb the first thunder mountain, and then step into the second dimension!

In this second-layer space, the power of thunder is obviously more intense than that of the first-layer!

Fortunately, Lin Fei has a thunder realm, and he can shield these thunder powers, so he is fearless!

Stepping into the second layer of space for the first time, Lin Fei was not in a hurry to climb the second Thunder Mountain!

Instead, perceive the entire 2nd layer of space with a soul!

"This second-layer space seems to be a little smaller than the first-layer space, and the thunder runes have become a little more complicated!"

"If you talk about the first layer of space, the Thunder Rune is a one-star rune! Then in the second layer of space now, the thunder rune is a two-star rune! ”

Some time ago, the bored Lin Fei learned the basics of runes in the remaining space!

Learned the hierarchy of runes!

Now there's a deeper understanding of runes!

Therefore, at a glance, I can see the peculiarity of the thunder rune here!

"In the basic introduction to runes, I have only learned about the highest three-star runes, but according to the reasoning, nine-star runes can appear here!"

"Back then, Mr. Zhuge Kongming once said that above the nine stars of runes, it is the realm of gods!"

"Rao is Mr. Zhuge Kongming, and he stopped here back then, it seems that there are still many secrets in this secret realm of thunder!"

Lin Fei's soul probed the entire second layer of space, and found that not only the thunder runes here had become two-star runes, but even the ubiquitous thunder energy was much higher!

However, the number of thunder beasts has decreased sharply, but the individual strength of each thunder beast is more than double that of the first layer of space!

Even, a trace of wisdom was born, and he was able to take the initiative to attack!

After Lin Fei stepped into the second layer of space, in less than ten minutes, he was targeted by the three-headed thunder beast!

Soon, more thunder beasts kept surrounding!

In a short time, the entire plain was surrounded by thousands of thunder beasts!

"Big trouble!"

"Looks like a big war is inevitable!"

"Let's move our muscles first......"

Lin Fei summoned the Thunder Realm, stretched out his hand to the void, and immediately condensed a thunder knife transformed by the power of thunder out of thin air!

"Lighter!"

"However, this thunder knife should be extraordinary!"

Lin Fei condensed the Thunder Knife for the first time!

It's a wonderful feeling!

"Empty Knife! Forty heavy sword strength! ”

The thunder knife was swung out, and suddenly the shadow of the knife in the void was hoarse, layer upon layer!

Forty heavy sword strength, actually fused with the power of thunder, forming a thunder storm.

In an instant, a spatial crack was torn open and swept through the kilometers!

The two thunder beasts in front of him were like pieces of paper, easily torn in half.

"Ugh!"

"I didn't expect to use the Thunder Knife to use the Void Breaking Knife, and the power has actually increased so much, and it also has a special effect of tearing the space!"

Lin Fei was overjoyed as if he had discovered a rare treasure.

Immediately, each hand held a thunder knife to open the bow left and right.

The surrounding thunder beasts were suddenly like devastating and decaying, and they were easily cut by Lin Fei!

In an instant, the thunder and the light of the sword were like shadows, cutting out a great avenue!

Randomly, Lin Fei used the Thunder Realm to perform the Escape Technique.

The whole person directly turned into a thunderbolt, as fast as electricity.

In the blink of an eye, thousands of miles away are close at hand.

"So fast! With the Thunder Realm Fusion Cloud Chasing Technique, I was actually able to use the power of Thunder to perform Thunder Escape. ”

Regarding Lei Dun, Lin Fei has the soul memory of Long Batian, and he can directly cast it without cultivating.

However, this requires an extremely high level for the comprehension of the power of thunder.

At the same time, it is necessary to comprehend the law of thunder and lightning.

Lin Fei naturally can't meet such a requirement now.

However, he didn't expect to use the Thunder Realm as an auxiliary, and then integrate into it with Cloud Chasing Steps, plus some of his own Thunder Energy to instill his whole body, but instead he accidentally hit and let Lin Fei touch the skin of the Thunder Escape Secret Technique.

Although, the speed of the thunder escape that Lin Fei is now using is still far from the real thunder escape.

But it's also really amazing!

At least, in the Pan-Universe Alliance, there has never been a person who has not comprehended the law of thunder and lightning, and has taken the lead in casting thunder escape and breaking through the cosmic space barrier.

After all, the cosmic barrier is incomparably strong and cannot be crossed by mortals.