BTTH: Emperor Yan, please exercise restraint, you are really a simple brother.

Hearing Zhang Yuan's question, Yao Lao frowned subconsciously.

Ninth-grade elixirs will encounter thunder disasters when they are formed, and even the worst elixirs will encounter black magic thunder.

The black magic thunder strike is not as numerous as the colored pill thunder of the eighth-grade elixir, but its power is extremely terrifying. Even a strong semi-saint dare not take it casually after one strike.

The complete ninth-grade elixir thunder calamity can be seen as a series of semi-saint attacks that ordinary peak warriors would not dare to take directly.

Thinking of this, Yao Lao said: "Not to mention the entire tomb, I am afraid that even a hundred miles away will be turned into ruins under the thunder."

"That's strange." Zhang Yuan thought: "This tomb is where a certain eighth-grade alchemist borrows elixirs to be reborn. It will eventually be tested by thunder. Regardless of whether it can pass, everything in the tomb will be destroyed. Then why did he bother to plant such a medicinal garden? "

This question made everyone think deeply.

According to Zhang Yuan, this behavior is indeed a bit weird.

"Could it be that he felt that he might fail, so he left the inheritance to future generations, and success would not matter?" Xiao Yan put forward a conjecture.

Zhang Yuan felt that this could not be the case.

Leaving behind some of the elixirs that had been refined, the elixir recipes and techniques can be said to be considered for future generations. Who would bother to build a spiritual array to cultivate seventh-level elixirs?

This is not called leaving a legacy to future generations, but is the behavior of a boy who throws away money. The alchemist is not just profit-seeking, but even a gentleman like Furukawa also pays attention to an exchange of equal value, let alone being so generous.

If you would build such a large array to cultivate elixirs, you must think that you will need it in the future, or prepare for certain people.

But this is just his conjecture. There is no evidence. There is no need to say more: "Maybe it is just like what Xiao Yanzi said. Now all this is easier for me. What is the truth? I will wait until I see the owner of the tomb in the deepest part of the tomb." , naturally you will know.”

Everyone nodded and stopped thinking.

Zhang Yuan looked at the medicine garden in front of him and jumped into the air directly above him.

Then he sat down cross-legged, released the power of his soul, and enveloped the entire medicine garden, sending the lowermost spiritual array and the foundation stone of the array into the Taixu Realm.

"enter!"

A hole opened in the Taixu Realm, the power of space circulated, and the formation base under the entire medicine garden appeared directly above the Qinglian Earth Core Fire, devouring the fire attribute energy that continued to come from below.

Tens of thousands of fire-incense flowers flickered gently, all benefiting Zhang Yuan.

Everyone: "."

"As expected of my cousin." Xiao Yan said with admiration: "The kitchen is not so clean even when a mouse passes by."

boom!

What greeted Xiao Yan was a fist, Zi Yan's fist.

"Have you seen my fists as big as sandbags?" Zi Yan threatened: "Next time you dare to tease my brother, I will beat you to death."

Xiao Yan:?

This is my cousin, my biological cousin!

His hunch was right, Zi Yan was really a "big disaster."

"Continue to go."

Zhang Yuan waved his hand, turning the ground below into a flat ground, and told everyone to continue going deeper.

It was not difficult to choose a corridor that went directly into the tomb. After about half a quarter of an hour, everyone felt that the fire attribute energy in front of them was getting thicker and thicker, reaching a level that was vaguely visible to the naked eye.

Thin fiery red energy filled every corner of the tomb. Zhang Yuan took out his wine glass and used the power of his soul to compress the retracted part of the energy, turning it into fiery red liquid.

He drank it in one gulp, and the pure energy was swallowed up by the Seven Dragons Thunder Gang Fire. This was an excellent tonic.

Zi Yan wrinkled her nose and said, "Brother, what attracts me is in this tomb."

Zi Yan has the energy to sense heavenly materials and earthly treasures, but she needs to take the initiative to "smell" them, or the heavenly materials and earthly treasures have some benefit to her bloodline before she can sense them.

There is a barrier outside this tomb that even Dou Zun cannot break through at once, but Zi Yan can sense it through the tomb, which shows that this thing is extremely beneficial to her.

"Just look at it and you'll find out."

Everyone entered the tomb together.

This time it was an empty palace again, but there was a pool in the center of the hall, which was rolling like boiling water, and the color was black and gold.

A lot of the fire energy in this temple will enter this pool, as if adding fuel to the fire.

"It seems that the best thing in this tomb is this pool."

When everyone came to the pool, they found that it was hundreds of feet long and wide, but they didn't know how deep it was and what was in it.

"Senior, do you know what this is?" Zhang Yuan knelt down and took a bowl of water. He saw that the color was dark, and if he used the power of his soul to peer into it, he would be burned and swallowed up. It was a bit mysterious.

"I have never seen this thing before." Yao Lao tried to hold some pool water with his hands, but felt a burning sensation, and his eyes darkened slightly: "Its color is black gold, it swallows fire attribute abilities, and its soul cannot be spied on."

"If I guess correctly, this may be the blood of Qingyou Huangquan."

Qingyou Huangquan blood?

Zhang Yuan searched his memory and made sure he had never heard of this name.

Xun'er noticed the expression on Zhang Yuan's face and thoughtfully introduced: "I have seen in some anecdotes in the clan that in the beast realm above Jiuzhou, there is a Jiuyou Huangquan, which is now formed by Jiuyou Diming. The python clan controls."

"Nine Netherworld Pythons are descendants of the ancient Heavenly Serpents, but because of their large numbers, their bloodlines are getting thinner and thinner with each passing generation, and there are many miscellaneous bloods."

"Thousands of years ago, a talented and beautiful person appeared in the Nether Python clan of Jiuyou Earth. After getting the body of Taixu Minglong, he embarked on the path of transforming into a dragon. Finally, he transformed from a python to a dragon, and finally transformed into a dragon. Success, becoming the first Qingyou Huangquan Dragon on the mainland.”

"Taixu Minglong is the descendant of Taixu Ancient Dragon and Jiuyou Ming Python. Jiuyou Ming Python is also the descendant of the ancient heavenly snake. Its bloodline is purer than that of Jiuyou Earthly Nether Python."

"After the Qingyou Huangquan Dragon broke through to the eighth level peak, in order to go one step further, he wanted to find the Jiuyou Ming Python. After being unsuccessful, he took action against the Taixu Ancient Dragon, the strongest among the dragon clan."

"After some calculations, he successfully swallowed a Taixu ancient dragon, but when he broke through to the ninth level, he was approached by a ninth-level Taixu ancient dragon and slapped to death with one claw."

"Since the death of the Qingyou Huangquan Dragon, it has appeared several times on the mainland, but every time it broke through to the eighth level, it was found and beaten to death by the strong men of the Taixu Ancient Dragon Clan."

Everyone: "."

Taixu Ancient Dragon is really domineering.

If the previous time was for revenge, the latter time was a clear message to all the Jiuyou Underworld Pythons: "Don't follow the path of the Qingyou Huangquan Dragon."

If you want to break through the ninth level, you have to swallow a Taixu ancient dragon. This is a natural opposition!

"So this Qingyou Huangquan blood is the dragon blood of Qingyou Huangquan dragon?" Zhang Yuan confirmed.

"Yes." Xun'er nodded.

"Then, does Xun'er know what effect this Qingyou Huangquan blood has after taking it?" Zhang Yuan asked.

"I'm not sure about this." Xun'er shook his head.

"I know." A clear and sweet voice sounded next to him.

Zi Yan took a sip of Qingyou Huangquan's blood, burped and said, "You can give it to me as a tonic to improve my strength as soon as possible."

Everyone: "."

"When humans take it, it should be able to improve their energy and spirit and extend their lifespan by three years. However, it cannot be taken if it is below the strength of a spirit warrior. It will be poisoned by dragon blood." Zi Yan added.

Increase longevity?

After hearing this effect, everyone realized that this tomb was unusual.

First there was the recipe for the Life-Eating Pill, then there was the main elixir for refining the Life-Eating Pill, and now there was a dragon's blood pool that could increase a person's lifespan.

Adding all these things together, doesn't it mean that we need to mass-produce powerful warriors who can live for six years?

If it were a top force, it would be enough to train Dou Wang into Dou Huang within six years.

"Boy Yuan, it seems that your feeling is correct. This tomb is not simple." Yao Lao said to Zhang Yuan.

"It doesn't matter." Zhang Yuan grinned: "No matter what is buried under this tomb, I will accept all these good things without mercy."

"This Qingyou Huangquan dragon's blood can be considered highly poisonous. The little medical fairy can break through the poison of Douzong and Douzun."

"Dragon blood is also a great tonic for Zi Yan, and swallowing it can also increase her strength as quickly as possible."

"We can also use this dragon blood to cultivate fighting kings and win over people who don't have much life left."

"."

No matter who created this pool of dragon blood for whatever purpose, Zhang Yuan said he accepted it.

Without hesitation, he repeated his old trick and moved the entire pool to the Taixu Realm and placed it on the top of Gravity Peak.

Using the Seven Dragons Thunder Gang Fire to refine this dragon blood, it can also be transformed into dragon energy, turned into clouds in the void, and the poison in it can also be extracted.

This time, I made a lot of money.

"Brother, there is something good in this pool." Zi Yan licked her pink lips.

"What?" Zhang Yuan asked.

"A corpse." Zi Yan said: "It is the corpse of Qingyou Huangquan Dragon. Its strength reached the eighth level during its lifetime. The dragon soul has dispersed, but the eighth level magic core is still there. I don't know why the corpse is still alive, so it can continue to flow. Generate blood and fill the entire pool.”

So scary!

Why does it sound like this green underworld dragon is being used as a blood cow?

You can't live peacefully after death, but you are constantly producing blood. Do you think it is milking a cow?

This is really

"It's all an advantage to me. I'll study the principle later and I'll have endless blood in the future," Zhang Yuan said with an unkind smile on his face.

Everyone also smiled.

It's a good thing if they are cheaper.

"continue."

There is no danger, and there are more and more benefits in three tombs in a row. How can you not be happy?

The fourth tomb must be better, right?

"Hiss, what is this!?"

After flying through another corridor for a quarter of an hour, the scene that appeared in front of everyone made their hearts tremble.

This is a tomb with black and gold walls on all sides. The space is smaller than the previous three tombs, with a length, width and height of a hundred feet.

And in this hundred-foot space, there are many pure white beads floating, which at first glance look like fireflies flying all over the sky in the dark night.

But when Zhang Yuan and others looked carefully at these beads, they could see a person sleeping, with his eyes closed, unconscious, and very pure.

"These beads are all the soul essence condensed from human souls." Yao Lao's face darkened and he clenched his hands.

"What's the use of soul origin?" Xiao Yan asked subconsciously.

"After swallowing, the soul realm will be improved." Zhang Yuan replied.

Hearing this, everyone's expressions changed.

Turn the human soul into the soul source, and then use it to enhance your own soul realm.

It's such a hatred to kill people with no more than a nod and not let go of their souls.

"This is a crooked way." Xiao Yan felt a chill running down his spine.

Zhang Yuan's eyes darkened slightly: "The force that is best at using this method on this continent is the Soul Palace."

"This Soul Palace is really full of ghosts!"