Chapter 77: Redeem the Secret of Thunder
Zhou Yang did not act rashly. At this time, most people had just set out to search for Thunder Stones. If he went to exchange them directly, it would be too conspicuous.

It is easy to exchange treasures, but the difficult part is how to take these treasures out.

You must know that now the people from all the major forces of the Black Dragon Mountain Empire have surrounded the entire Canglan Star. Once you attract other people's attention, it will be difficult to escape!
They found a nearby spot where thunder stones were distributed, and they dug while waiting quietly.

It was not until the end of the first day that they began to fly quickly towards the thunder and lightning castle.

"Zhou Yang, how many thunder stones do we have now?"

Thor asked Zhou Yang excitedly.

"How much? Let me see!"

Zhou Yang communicated briefly with Babata in his mind and quickly gave a number.

"We now have .235 Thunder Stones!"

"Sigh~~~"

Everyone gasped.

"so much!"

They had also seen the exchange price of the treasure from afar before.

The cheapest fifth-tier force weapon only costs 10 thunder stones, and these thunder stones are enough to exchange for more than fifth-tier force weapons!

"Yoko, how do you know the use of this Thunder Stone?"

Luo Feng asked curiously.

At first they were still wondering why Zhou Yang spent so much effort collecting those useless thunder stones.

It was not until the Thunder Castle was opened that they realized that these inconspicuous stones were the truly useful treasures in the world within the world!
"Guess."

Zhou Yang smiled mysteriously but did not explain much.

The group quickly rushed towards the core area of ​​the world within the world.

Soon, a huge thunder castle surrounded by terrifying electric light appeared on the distant plain.

However, the castle was surrounded by a large number of adventurers left behind by the five major forces.

Everyone who approaches the castle area must be inspected by the five major forces, and only those affiliated with them can enter this area.

"Damn, these powerful people are too domineering!"

Thor couldn't help but curse.

"I can't help it. I'm just too strong!"

Zhou Yang smiled indifferently, "Let's go, let's go over there."

When the Thunder Castle was opened, Zhou Yang had already contacted Lord Ming Yu of the Virtual Universe Company's Black Dragon Mountain branch through the virtual universe.

The Sanfu Mountain where that man was located was the leader of the four major organizations in Black Dragon Mountain. With his advance arrangements, Zhou Yang and others had a smooth journey and successfully entered the core area.

At this time, figures were coming in and out of the castle entrance from time to time.

However, most of these are probably to confuse others, not to really exchange for treasures.

Zhou Yang waited for a while, and after someone came out of the castle, he gave instructions to Luo Feng and others, then stood up and walked towards the castle.

At this time, he was wearing a silver-gray Force battle suit and a helmet on his head that covered his entire face.

Inside the battle suit and helmet, there is armor made of cosmic-grade Mo Yun vine for close protection.

"Hey, someone else went to exchange it!"

"Whose family is that?"

When Zhou Yang walked out of the main group, he immediately attracted the attention of many people around him.

However, people often go in during the day, and almost all of them wear masks and helmets.

Many of these people were released by major forces as smoke screens, and no one knows who has exchanged treasures and who has not.

"It must be some force that is misleading people again."

Not much attention was paid to Zhou Yang.

"Da da."

Zhou Yang entered the castle smoothly and followed the guidance of the intelligent life. He soon came to a cold old house.

The old house was cold and dark, with only a faint light illuminating the entire house.

The mottled marks on the walls tell of its ancient history, and the walls, made of blue-black bricks and stones, have a faint smell.

"Little guy, are you here to exchange treasures?"

A deep voice echoed in the ancient house, "Show me your Thunder Stone first. Today, many people don't have Thunder Stones, but they come to tease me, Lord Wu!"

"Master Wu?"

Zhou Yang smiled, it seemed to be the intelligent life. He raised his hand and waved it, and suddenly a large number of thunder stones fell on the ground of the ancient house.

"Oh, that's good, finally someone actually came to redeem it!"

A deep voice sounded.

Then there were bursts of footsteps in the dark corridor behind the old house, and soon a fat old man with a white beard walked in.

Zhou Yang understood that this should be the energy body of the intelligent life mist.

"Little guy, tell me, what do you want to exchange?"

The white-bearded old man looked at Zhou Yang and asked coldly.

Zhou Yang didn't care about his attitude and directly stated the purpose of this trip.

"I want to redeem the complete set of Thunder Mystic Technique, which is number 18 on the list."

"Secret Thunder Technique?"

The old man with white beard nodded slightly.

"Okay, a set of lightning secrets will cost 35 thunder stones. Do you need to exchange for anything else?"

"Ahem, Lord Fog"

Zhou Yang coughed lightly, then looked at the white-bearded old man and explained, "Master Wu, what I mean is that I want to exchange for all the Thunder Secrets, all six sets!"

Others may not know, but he knows.

The true inheritance of this world within a world is hidden in these sets of thunder secret techniques.

The space inheritance crystal and the legacy account that ranked first in the exchange list were actually big traps set by the deceased Lord of the Kabu Realm and his intelligent life.

"You want all six sets?"

Hearing Zhou Yang's words, the intelligent life form that looked like a white-bearded old man couldn't help but raise his voice slightly.

He stared at Zhou Yang for several seconds, with a smile on his face.

"No problem, six sets of Thunder Secret Techniques, a total of 210 million Thunder Stones!"

He collected 210 million thunder stones from the pile of thunder stones on the ground, then raised his hand and waved, and six small auxiliary light computers flew quickly towards Zhou Yang.

Zhou Yang put the auxiliary light computer into the storage space and a relaxed smile appeared on his face.

"Please exchange the remaining Thunder Stones for an Ice Soul Blade and a Skyfire Wheel."

Soon, Zhou Yang walked out of the thunder and lightning castle.

After meeting up with Luo Feng and others, he first stayed with the large group of Sanfu Mountain for half a day.

It was not until the early morning of the next day that they pretended to look for the Thunder Stone and flew quickly out of the crowd.

"Huhuhu~~~"

In a dark and desolate mountain range, the figures of Zhou Yang and others rushed past.

They wandered around in the mountains for a long time, and only after making sure that no one was following them did they quickly burrow underground.

"Chi chi chi~~~"

The group stopped after reaching an altitude of more than 9000 meters.

"Zhou Yang, why are we here if we don't hurry up and grab the Thunder Stone?"

Thor asked doubtfully.

"Not urgent."

Zhou Yang smiled and controlled the Mo Yun vine to create a spacious space underground.

Then he took out all the six auxiliary optical computers that he had exchanged before, which stored the secret method of thunder.

"Brother Lei, this is the secret thunder technique inherited from the Lord of the Kabu Realm. Please check it out first."

"Secret Thunder Technique!"

Thor's eyes lit up instantly.

He himself was cultivating the attribute of thunder and lightning, so this secret thunder technique was undoubtedly very suitable for him.

However, he did not expect that Zhou Yang did not choose any treasures for the first exchange, but helped him exchange for a full set of Thunder Secret Techniques. He was immediately deeply moved.

"Forget about Zhou Yang. I won't say any polite words. If you need any help in the future, just let me know!"

Thor didn't act too pretentiously. He simply took the secret techniques and began to examine them.

Just a moment later, an extremely surprised look appeared on his face!

(End of this chapter)