Soon, both inside and outside the world were bustling with activity.

After announcing the list of all treasures and the required exchange conditions, the Mist Lord floating in the air immediately disappeared.

Outside the castle, just a moment later, someone with a grim look approached the castle again, which was no longer ravaged by lightning power and had its four doors wide open.

It seemed that they had received orders from the forces behind them to go into the castle first and take a look.

This was obviously not an easy task. Dozens of people from various forces approached the fortress in a sneaky manner, and no one wanted to be the first to go in.

"His Highness the Ninth Prince has ordered that no one is allowed to approach the castle!"

At this moment, someone from the Ninth Prince's faction shouted loudly.

Upon hearing this, dozens of star-level figures from various forces all showed joy on their faces and stopped again.

However, more than a dozen of them came out with grim expressions just a moment later.

"The Lord of the Wind Demon Realm has ordered us to enter the ancient castle first!" One of them said in a low voice to the forces of the Ninth Prince.

"The Lord of the Ice Sea Divine Kingdom ordered us to enter the castle and see the real situation." After this person spoke, another star-level person also came forward and spoke.

"..."

The man under the command of the Ninth Prince fell silent.

The grandfather of the ninth prince Brolin, "Hargrave", is a top-three realm master in the Black Dragon Mountain Holy Land.

Top three, but not first.

This "Lord of the Wind Demon Realm" is the most powerful being among the Realm Lords in the Black Dragon Mountain Holy Land.

As for the "Lord of the Ice Sea Kingdom", there is no need to mention it.

That is the Black Dragon Mountain Empire, one of the two immortal gods in public.

Although the Black Dragon Mountain Holy Land and the Ice Sea Divine Kingdom have always been on good terms and share the same aspirations, when the Lord of the Ice Sea Divine Kingdom really spoke, the Ninth Prince Brolin and Hargrave were nothing.

Besides, the Lord of the Ice Sea Kingdom only allowed his star-level officials to enter the castle to take a look, and he did not use his power to directly forbid others from touching the treasure.

Gritting their teeth, several star-level warriors from the holy land of Black Dragon Mountain and the Ice Sea Kingdom walked towards the ancient castle.

The others looked at each other and stared at those people.

To everyone's surprise, more than half an hour after entering the castle, the men came out safe and sound.

After coming out, those people were obviously very excited. They looked like they had survived a disaster and were obviously excited.

After leaving the castle, those men immediately called their men and flew in different directions.

Apparently, they were going to look for the Thunder Stone.

"fine!"

"Hurry in and check the situation so we can report back to the higher-ups!"

The others also took action immediately and walked towards the castle.

Meng Xingchen did not stop and followed the team of hundreds of people into the castle.

At this time, he had used the technique of shrinking bones and changing shape to transform into the appearance of a middle-aged man.

As for the middle-aged man himself, he was killed by someone who ambushed him on the way to Fenglei Gorge.

……

As soon as they entered the castle, an intelligent elf flew out and led everyone through the house and courtyard, and finally arrived near a cold old house.

"Line up and come one by one!"

From the old house, the voice of the white-bearded old man, Lord Wu, was heard.

Meng Xingchen had already remained calm and ranked third.

Now no one had the Thunder Stone in their hands, and they were just ordered to enter the castle first to take a look, so no one competed with him for a position.

After the first person went in for a while, he quickly came out with an excited look on his face.

"Little guys! It won't do if you just come here to ask questions and look at the treasures without exchanging them for Thunder Stones..." At the same time, the angry voice of Lord Wu came out from inside.

The second-ranked star was stunned for a moment, but finally walked in with gritted teeth.

After about a few minutes, he also walked out quickly and happily.

Don't be fooled by what this old man says, in reality he is still following the normal trajectory. Even if there is no Thunder Stone, he just comes over to confirm whether there is a stellar-level treasure, and he will chat for a while to relieve the loneliness of no one talking for millions of years.

Meng Xingchen took a breath and entered the ancient house.

The interior of the old house was dark, and there was an ancient and cold atmosphere everywhere.

"Little guy, you are here to exchange treasures too? Do you have a Thunder Stone?"

Old Man Wu was standing inside the old house, staring at Meng Xingchen with his old eyes, looking a little angry.

"Have."

Meng Xingchen directly took out a space ring and handed it to the white-bearded old man.

Apparently, there were also instruments for isolating and detecting inside this ancient house. When the first and second people came in, no sound could be heard from the outside world.

But this was definitely at the beginning. Later on, this old man Wu would not be like this. He would try his best to expose to the outside world every person who came in to exchange treasures.

"...More than 300 million?" After sensing the situation inside the space ring, Old Man Wu was obviously very surprised. "I just announced it. How did you get so many Thunder Stones?"

Meng Xingchen smiled faintly, "Like Lord Wu, I also happen to like this kind of stone. I originally planned to collect it and use it to comprehend the law of the origin of lightning, but I didn't expect that I would use it now."

"..." Old Man Wu stared at Meng Xingchen for a while, then asked, "What treasure do you want to exchange?"

"Xingchen, exchange it for the 'Fruit of Life!' and these energy and telekinetic weapons. This is the best deal!" Babata quickly transmitted a message to Meng Xingchen.

"I want to exchange for the 'Thunderbolt Secret Inheritance', all six sets."

Meng Xingchen ignored Babata and spoke directly to Old Man Wu.

"You're crazy!" Babata hurriedly shouted to stop him, "Xingchen, even if you want to practice the secret method of thunder and lightning, buying one set is enough. Why did you buy six sets?"

Not only Babata was surprised, but Old Man Wu was even more surprised after he stopped Meng Xingchen's exchange target.

"Are you sure?" Old Man Wu stared.

"Sure!" Meng Xingchen nodded.

“……” Old Man Wu was silent.

After more than ten seconds, he chuckled, "Not bad, not bad, you have some ideas! I like young people with ideas! Here, these are your six sets of 'Thunder Secret Inheritance'!"

As he spoke, Old Man Wu floated six blue crystal core-like objects in the air and sent them to Meng Xingchen.

Meng Xingchen reached out to take it and put it into his space ring.

"You must be stupid! Alas..." Babata sighed, "Next, use the remaining Thunder Stones to exchange for a Life Fruit and these three treasures."

One set of Thunder and One Secret Law inheritance can be exchanged for 30 Thunder Stones, and six sets can be exchanged for 180 million Thunder Stones.

There were less than 140 million Thunder Stones left, which could be exchanged for a Life Fruit and several other treasures. For the next exchange, Meng Xingchen followed Babata's advice.

After putting several treasures into the space ring, he left the ancient house.

Outside the ancient house, none of the other stars who were peeking around noticed that he was different from the previous two.

……

Leaving the old house alone, Meng Xingchen walked out of the castle.

Walking to a deserted place, he took out a crystal core storing the secret inheritance of "The Path of Thunder" and started to learn it.

"Secret inheritance" is different from general secret texts. The inheritance can be learned directly through the mind, and the content of the inheritance has been analyzed and refined. To a certain extent, it is equivalent to the "secret creator", who can pass on his profound understanding of this secret method to you directly through the mind.

But even so, it does not mean that you can learn it all at once. After all, there is a layer of "inheritance", and the true secrets of the techniques are lost a lot.

After accepting the inheritance of the secret method, Meng Xingchen connected his mind to the Killing God Pearl and practiced it again.

"In the first year, you began to learn the secret technique of 'Thunderbolt'... You successfully practiced the secret technique of 'Thunderbolt' and reached the 'state of perfection'."

It took one year of his life to successfully practice a secret technique passed down by Lei Ting.

"Wow..."

Thunder Spirit Battle Armor and Thunder Devouring Gloves are automatically equipped to the whole body.

"boom!"

The wind and thunder field was opened instantly.

It was only opened for a moment and then retracted in an instant.

"Zizzizi..."

A hint of lightning had already appeared on the Lei Ling battle armor.

"Shh..."

Meng Xingchen immediately swung his palm knife and slashed at the sky above the castle.

"Boom..."

A purple bolt of lightning as thick as a bowl rushed straight into the sky like a ferocious dragon.

"Om..."

Thousands of meters above the ancient castle, a hazy light shield rose up, blocking the purple lightning that looked like a ferocious dragon.

"Xingchen, you are crazy..." Babata was startled and couldn't help but scream in Meng Xingchen's mind.

This is the territory of the white-bearded old man named Wu. Although Babata doesn't think that the old man can be stronger than him, the defense and attack methods of the entire castle are under the control of the other party.

However, after Babata screamed for a while, he seemed to have discovered something and stopped suddenly.

"Master, there was movement inside one of the crystal cores of the Thunderbolt inheritance!" Luo Shen's voice also rang out quickly, "It was that Lord Wu! He, he was hiding inside one of the crystal cores of the inheritance!"

"Don't be impatient."

Meng Xingchen gave instructions to Luo Shen and Babata at the same time.

Under normal circumstances, even Babata and Luo Shen would not be able to discover the intelligent life hidden in a crystal core that has not recognized its master.

But just now, Meng Xingchen learned the secret method of "Thunder" in an instant and performed it in an instant, which obviously surprised Old Man Wu. He accidentally made some "noise", so he was instantly discovered by Babata and Luo Shen.

As for Meng Xingchen himself, he had known it for a long time.

Within the six "Thunder Heritage" crystal cores, there is an old man with intelligent life fog who is the Lord of the Kabu Realm. As a time traveler, he is of course very clear about this.

In the normal world, Luo Feng, Hong and Lei Shen came to the world within the world. According to the rules, they dug up thunder stones and entered the ancient castle to exchange them.

By the time of the last exchange, most of the treasures had already been exchanged by others.

There was no other way. With the mentality that the Thunder Stones would be wasted if not wasted, Luo Feng casually exchanged them for some remaining not-so-good treasures, as well as the remaining five sets of Thunder Secret Technique Inheritance Crystal Cores.

Because among the three, only Thor has the talent for lightning, special abilities, and domain are all of lightning attributes, so these five sets of inherited secret techniques were all given to Thor.

After leaving Canglan Star, Lei Shen checked several inheritance crystal cores, and as a result, Old Man Wu jumped out from one of the crystal cores.

The habitat of most intelligent life forms is a crystal core, and the same is true for Babata and Luoshen now.

……

Therefore, Meng Xingchen’s goal this time is to take away the six inheritance crystal cores immediately after reaching the core castle of the world within the world.

Now, the plan is going better than he expected.

Because, before anyone could exchange any treasure, the real Old Man Wu had already been brought out by him.

The reason why he wanted to learn an inheritance crystal core and perform a secret method of thunder was, of course, to show off his "talent for the method."

Every intelligent life is proud. In order to prevent Lord Fog from escaping by some means inside the castle, it is better to show one's strength.

After activating this secret thunder technique, Meng Xingchen continued to sort out the mysteries of the inherited connotation and origin of thunder in his mind while walking out of the ancient castle.

Leave the castle and fly quickly in the direction you came from.

It seemed that he was no different from the previous people who walked out of the castle. As soon as they left the castle, they immediately ran out to look for the "Thunder Stone."

In this way, Meng Xingchen did not encounter any trouble and flew all the way to a place thousands of kilometers away from the ancient castle before he stopped.

During this period, Babata and Luo Shen had been monitoring the crystal core.

Near a collapsed mountain, he quickly turned on the instrument that was shielding the surrounding detection, and then took out the crystal core that contained the old man in the fog.

"Old Wu, is it time to come out?"

Meng Xingchen said towards the crystal core.

Faintly, the crystal core seemed to flicker slightly, but no response came out.

Meng Xingchen smiled, "Old Wu, don't hide, I know you are in this crystal core!"

"call!"

The crystal core flashed, and the old man in a white robe jumped out from it.

Staring, Old Man Wu quickly flew around Meng Xingchen, and finally returned to the front, and asked in surprise, "Little guy, how did you find me?"

"Hahahaha..." Babata in a black robe appeared on Meng Xingchen's shoulder while laughing. He laughed at Old Man Wu and said, "With your limited hiding ability, do you think you can escape the eyes of Lord Babata?"

"Huh!" Luo Shen also appeared on the other shoulder, staring at the old man Wu with curiosity.

"scare……"

Old Man Wu was shocked and took a few steps back. He looked at Babata and then at Luoshen in astonishment.

As an intelligent life, he has followed the Lord of the Kabu Realm for millions of years and has never seen the existence of other intelligent life.

But now, I saw two of them at once!
The three intelligent beings stared at each other and remained silent for a while.

After a long while, Old Man Wu turned to Meng Xingchen with his eyes wide open and said viciously, "Little guy, are you an intelligent life dealer? Let me tell you, Lord Wu is different from these two little brats. Don't even think about selling me out!" (End of this chapter)