Leiyan Valley, is a special area of the Leiyan Mountains, in the depths of this mountain range, the peaks are staggered, the terrain is complex, and it is said that a long time ago, there was thunder and lightning, and the peaks were connected and split, which gradually formed today's Leiyan Valley.

And perhaps because of the arrival of thunder and lightning, it is also the thunder rock valley, full of thunder, in that valley, there are many demon beasts, these demon beasts seem to be mutated because of this place, not only come and go like the wind, but also can breathe thunder and lightning, compared to the demon beasts outside, more difficult.

The area in the Thunder Rock Valley is quite huge, so even if such a large number of people and horses suddenly pour in, it is still extremely empty, but the thick fog that fills the valley makes people's vision greatly obstructed.

The originally quiet Thunder Rock Valley, but also because of this large group of uninvited guests and became riotous, around the valley, there was a faint low roar of demon beasts, in their opinion, this was their territory, these people, all of them are outsiders, and for outsiders, the demon beasts have never been soft-mouthed, and in this Thunder Rock Valley, even if it is the periphery, there are a lot of various elixirs, as soon as these people come in, they are naturally not soft at all, what they see, this kind of action, do not provoke the "natives" here I'm afraid it's a strange thing to fight back.

Therefore, when everyone entered the Thunder Rock Valley not for long, there was a commotion and chaos around them, thinking that someone was attacked by the demon beast, and for a while, all kinds of noise and screams rang out, which made people upset.

"Brother Lin Dong, the real baby, in the depths of the Thunder Rock Valley, but along the way, there are many demon beasts, and the poisonous mist is permeated, even the strong people of half-step nirvana must be cautious, we are also counted in a boat, rush over first, how?" Liu Yuan looked at the periphery of this black miasma, and then looked at Lin Dong with a smile, asking for his opinion.

"It's fine. ”

Lin Dong didn't have any resistance to this, this Thunder Rock Valley is indeed full of dangers, if you can temporarily connect with the son, you can also be more safe, and looking at the previous Xuanbing Dynasty and the Great Wu Dynasty, I think they should go directly to the depths, if they go late, they may not even be able to get soup.

"Go, wait for me. Lin Dong turned his head and greeted Mo Ling and Mo Tie and the others, now in this circle, Lin Dong can be regarded as the leader, and for his words, even Mo Tie is obedient, bringing them along, once there is something, it is also a big help.

Lin Dong reached a temporary cooperation with Ling Zhi and Liu Yuan, and there was no delay, he immediately set off, speeding up and advancing towards the depths of Leiyan Valley, and as for the other Yangcheng people, some clever ones also quickly followed.

In the Leiyan Valley, there are many staggered stone roads, like a labyrinth, but fortunately, Liu Yuan and the others have a lot of information here, and they are at the moment, and Lin Dong is also happy to be leisurely, and some demon beasts that rush around from time to time have not yet arrived here, but they have been killed into slag by everyone.

And when Lin Dong and his party sped up and rushed towards the depths of Lei Yan Valley, on the ground in front of them, Lin Dong could also see some footprints and beast corpses, which should have been left by the two high-level dynasties.

After about ten minutes of rushing at full speed like this, something different finally appeared on the winding stone path, which was a dense barrier of thunder and lightning, in which the lightning arc continued to flicker and fall to the ground, bursting into a crackling sound.

In that thunder and lightning barrier, Lin Dong noticed a rather sharp fluctuation, and his eyes were also slightly condensed at the moment, this kind of thunder net, even if a half-step Nirvana powerhouse wanted to rush over, he was afraid that he would have to suffer a little.

"Brother Lin Dong, this is the barrier formed by the thunder stone of the Thunder Rock Valley absorbing the thunder, it is extremely powerful, in normal times, the sky above this Thunder Rock Valley is always thundercloud weather, in that kind of weather, the power of the thunder and lightning barrier here has increased countless times, and even the strong people of the Nirvana Realm are difficult to enter. ”

"But fortunately, there are always a few days a month when the thunderclouds will disperse, and this is the time that must be grasped when entering the depths of the Thunder Rock Valley, so many people are making up for this time......" Looking at Lin Dong's surprised gaze staring at the thunder and lightning barrier, Liu Yuan explained with a smile.

"Oh. Lin Dong was a little stunned at this time, he was still wondering, why those high-level dynasties didn't come sooner or later, but they all came to this time, it turned out that it was because of the so-called thunder and lightning barrier in this Thunder Rock Valley.

"Brother Lin Dong, I'm afraid that only those who have reached half-step nirvana can pass through this thunder and lightning barrier, and if others are to do so, they may only be able to stay outside. Mo Tie's gaze also turned to Lin Dong, and then looked at Mo Ling and the three of them behind Lin Dong, and said.

"It's fine. Hearing this, Lin Dong shook his head with a smile, and whispered to Mo Ling and the others, "You just follow behind me." ”

The three of Mo Ling have been following him and have helped him a lot, and now that they have finally found a treasure, Lin Dong naturally doesn't want to leave them outside.

Hearing Lin Dong's words, Mo Ling and the three of them were also a little moved, and immediately nodded

"Let's go. ”

Ling Zhi and Liu Yuan on the side had already made arrangements, taking away all the half-step nirvana powerhouses under them, and then hugging their fists at Lin Dong, they stretched their bodies and rushed into the lightning barrier that flashed with thunder arcs.

Snort.

As they broke in, the lightning barrier suddenly erupted into a crackling sound, which made people feel a little creepy.

"Let's go. Lin Dong didn't delay, with a wave of his palm, he stepped into the thunder and lightning barrier, and then his mind moved, and a devouring force quietly spread out, enveloping the three Mo Ling who were a little nervous and followed.

The devouring power seemed to form an invisible barrier around them, and those violent thunder arcs quietly disappeared as soon as they touched the shield formed by the devouring power.

These thunder and lightning powers, after being devoured and refined by the devouring power, with a faint numbness, wandered in Lin Dong's body, and finally were forcibly absorbed by Lin Dong's **.

In the past, when he cultivated the Great Sun Thunder Body, Lin Dong had absorbed the power of thunder, so if he absorbed it now, he was also familiar with the road, and it did not bring him the slightest discomfort.

And with the help of the miraculous effect of devouring power, this so-called thunder and lightning barrier that is enough to make a half-step Nirvana powerhouse suffer, in Lin Dong's opinion, is not the slightest challenge, so when he saw the trembling appearance of Mo Tie and the others not far away, he couldn't help but smile in his heart.

It didn't take too long to pass through the thunder and lightning barrier, in just a few minutes, Lin Dong passed smoothly with the three Mo Ling and Xiao Yan who were safe and sound, and then looked at Mo Tie and the others who were so thundered that their hair stood upside down, he couldn't help but feel a little embarrassed.

"Finally in......"

Ling Zhi and the others, when they passed through the lightning barrier, also let out a long breath, and then looked at the thunder barrier with fiery eyes.

What appeared in front of Lin Dong and the others was a huge inner valley, and in the middle of the city, there was an extremely large stone hall, standing quietly here.

The stone hall has been somewhat destroyed, full of traces of time, and the time of existence will not be short, obviously, this should be the destination of Lin Dong's trip, and the so-called ancient secret key should be in this huge stone hall.

"Haha, it's finally here!Everyone, what will happen next, it depends on their respective opportunities!" Staring at the stone hall with fiery eyes, Liu Yuan couldn't help laughing, and then took people into the stone hall with a horse.

The door of the stone hall has been opened, it should be the work of the two high-ranking dynasties in front, and there are some hurried footprints around.

Inside the stone hall, it is extremely huge, and the corridors are crisscrossed and crisscrossed, and then spread to unknown places in the depths, as soon as Ling Zhi and the others entered, they scattered away, looking for all kinds of treasures, and they were very busy for a while.

"Let's go this way......"

Lin Dong didn't stop here, his gaze looked at the staggered corridor, there was a kind of light surging in his eyes, and then he waved his hand, and he was the first to sweep out.

Behind him, Mo Ling and the three of them must have followed without hesitation, and the three of Mo Tie, Tang Xuan, and Liu Xuan hesitated slightly, but also followed, in their opinion, it would be safer to follow Lin Dong's side.

Lin Dong and his party swept through the corridor, but his gaze was getting brighter and brighter, faintly, and even with a kind of excitement, as soon as he entered the stone hall before, he felt that his spiritual power faintly had a boiling sign.

This situation is rarely encountered by Lin Dong, but he knows that only when the spiritual power senses the heaven and earth spiritual objects that are closely related to it, will there be such a movement, and it is obvious that in this Thunder Rock Valley, there is only one thing that has the temptation for Lin Dong's spiritual power, and that is the Heavenly Rune Spirit Tree that he dreams of!

"Whew!"

The rushing figure, after a few minutes, finally stopped, a spacious stone room, appeared in the sight of Lin Dong and others, this stone room, full of amazing energy fluctuations, the rich medicinal fragrance continued to emanate, obviously, this is a warehouse used to store all kinds of elixirs.

And Lin Dong's gaze swept over this spacious warehouse, and finally, it was finally solidified in the middle of the central position, where there was a small withered yellow tree, from a distance, that kind of branch, as if it was a natural mysterious rune, faintly, with the magic of communicating the power of heaven and earth.

"Heavenly Rune Spirit Tree!"

Looking at this rune-like ancient tree, Lin Dong's eyes were also extremely bright at this moment.