"Hehe, I believe that with Brother Yin Han's talent, you will definitely be able to meet my requirements. As for leaving with the item …" Bi Yan chuckled. Red light flashed in his hand, and a fist-sized blood-red crystal had appeared out of nowhere.
The crystal was crystal clear, slightly glowing with a strange red light. There seemed to be countless worm-like blood filaments slowly moving in it. It looked a little mysterious.
"This is the Blood Curse Nether Crystal. Brother Bi Yan, you mean …" Liu Ming glanced at the crystal, and he didn't seem to be surprised.
On the way to this Bi You City, Liu Ming also more or less learned a lot about the Fiend Clan. He knew that the Blood Curse Nether Crystal was a rather ancient thing of the Fiend Clan like a blood oath contract.
"It's even better that Brother Yin Han knows this thing! This ancient book is extremely precious. Just in case, you and I might as well swear the Blood Curse Nether Oath to show our sincerity. "Bi Yan said with a smile.
Liu Ming's eyes flashed, and he nodded without thinking too much, indicating that he had no objection.
Seeing this, Bi Yan immediately threw the crimson crystal in front of him, and he raised his hand to launch a symbol.
The crimson crystal immediately hovered between the 2, spinning in the air.
After Bi Yan glanced at Liu Ming, he stretched out a finger, forced a drop of blood from it, and flicked it on the crimson crystal.
As soon as the drop of blood touched the crimson crystal, it turned into strands of hair-like blood filaments and directly went into the crystal.
Immediately afterward, the worm-like blood filaments in the crystal seemed to suddenly come alive, and they began to swim quickly in the crystal.
Seeing this, Liu Ming also did the same. He raised his hand and dripped a drop of blood on the crystal.
As the blood went into the crystal, the blood filaments in the crystal moved a little faster as if they were going to break out of the crystal in the next moment.
The two of them looked at each other and raised their palms to the sky at the same time. After swearing an oath to abide by the agreement, the crimson crystal hovering between the two of them suddenly shone brightly with a "pa" sound and directly shattered.
Densely packed insect-shaped blood threads spurted out from the cracks, and with a roll, they turned into two rays of blood light. One flew into Bi Yan's forehead, and the other flew into Liu Ming's forehead, disappearing without a trace.
Liu Ming only felt a bone-chilling cold air penetrate straight into his body from the center of his eyebrows. After running a circle in his entire body, it flashed into the sea of consciousness, turning into a blood-colored insect like crystal object, curling up on the black and white Jin Dan.
He activated the mental power in his Sea of Consciousness and touched the blood-red bug.
In the end, the blood-colored bug did not move at all. It was as if it was dead. However, Liu Ming was still able to sense the ferocious aura contained within the blood-colored bug.
"Since the oath has been sworn, I will take my leave. I will see you in two months." Liu Ming cupped his hands and put away the blue ancient book in his hand. Intentionally or unintentionally, he glanced at one of the walls of the secret room, turned around, and walked out of the secret room.
After Bi Yan saw Liu Ming out of the room, he slowly sat back on the stone chair, poured a cup of spirit tea, and gently took a sip.
At this moment, a cracking sound rang out in the secret room. A hole appeared in one of the walls, and a white-haired old man slowly walked out.
Bi Yan's face did not reveal the slightest bit of surprise, and he continued to drink his tea. It was obvious that he had already known that this person was here.
The white-haired old man looked at Bi Yan and said with a frown, "You gave the Nether Prison Manual to this unknown Fiend so easily?"
"Hehe, ancient books are the most suitable things to trade with others because they can be made thousands of copies. As long as you make an oath, you will always be able to make a profit. That Nether Prison Manual is not essential to me. If I can exchange it for a powerful helper, wouldn't it be greatly beneficial to us? "Bi Yan laughed and said without the slightest bit of concern.
"Even so, this Yin Han is only at the Initial Jin Dan Realm. According to what you said, thirty or forty years ago, he was only at the False Dan Stage. Perhaps he has only condensed the Jin Dan in recent years, and his realm is not stable yet! This kind of exchange, you will still suffer a great loss. "The white-haired old man's expression faltered, and he said with a cold snort.
"This Yin Han is not as simple as an ordinary Jin Dan. You know that my intuition has always been very accurate. In addition, I have seen him in action before. The Tiger Dragon Hell Prison he used is indeed powerful, and he can already activate the Nether Prison Divine Ability. This is already enough. "Bi Yan's eyes flashed as he said.
"There is such a thing!" The white-haired old man's face changed, and he said in surprise.
"To be able to practice the Tiger Dragon Hell Prison to the great success stage without any auxiliary method, I am afraid there are only a few people in the entire Netherworld who can do it. Moreover, his Divine Sense is also extremely powerful. Although he didn't expose you just now, I guess he has already found out that you are hiding inside." Bi Yan said with a slight smile.
"Impossible! Even those Celestial State City Lords may not be able to discover my Concealment Secret Technique. This boy has just entered the Initial Jin Dan Realm, it is impossible for him to have such a powerful mental strength … "The white-haired old man was a little surprised when he heard this.
"Hehe, it's fine if you don't believe me, but the stronger this Yin Han is, the better. It seems that you and I really have a hope to catch Xu Ling this time …" As Bi Yan said this, a cold light flashed in his eyes, and his hand holding the spiritual tea tightened.
With a "kacha" sound, the cup in his hand was directly crushed into fine powder and fell down with a rustle.
The white-haired old man Zell's expression was uncertain. He seemed to be thinking about the meaning of Bi Yan's words just now.
…
After Liu Ming left the VIP building, he was no longer in the mood to participate in the following auction. He directly left Rui You Pavilion and went straight back to the inn where he lived.
After entering the secret room of the inn, he waved his hands again and again. Rays of light wrapped in formation flags shot out from his hands and disappeared into the surroundings of the room. After laying down several layers of restrictions, he walked to the center of the room and sat down cross-legged.
Immediately afterward, he flipped his hand and took out the blue ancient book given by Bi Yan. On the cover, there were four big words written in ancient characters, "Hell Prison Handbook".
With a light sigh, he opened the ancient book. The lines of small words and clearly arranged patterns on the page immediately attracted all his attention.
Time passed little by little.
An hour later, Liu Ming closed the ancient book, raised his head, and showed a thoughtful look on his face.
There wasn't much content in this ancient book, and after he had cultivated the sixth level of the Tiger Dragon Hell Prison, he didn't seem to encounter any bottlenecks, so he quickly read through the content.
According to his judgment, what was recorded in this ancient book was indeed the experience of practicing the Tiger Dragon Hell Prison. Some of the understanding of the technique made him feel enlightened. Many details that he didn't know were mentioned one by one, which was a great inspiration to him.
Apart from that, there were also some tips on how to use the cultivation technique. Many of the insights were refreshing to him.
However, the auxiliary method of the Tiger Dragon Hell Prison recorded in it made him a little puzzled.
According to the ancient book, when the cultivation of the Tiger Dragon Hell Prison reached a high level, at each stage, some external objects were needed to be integrated into the Tiger Dragon Hell Prison Technique to break through the bottleneck and greatly increase the power.
"Integrate with external objects, so that's how it is. I understand." Because the ancient book of the Tiger Dragon Hell Prison that he obtained back then had already mentioned about relying on external objects, Liu Ming was not very surprised to hear this from the ancient book.
According to the auxiliary method, when the Ghost King of the Nether Prison cultivated the Tiger Dragon Hell Prison, he actually integrated a large number of extremely precious treasures into the cultivation method, which greatly increased the power of this cultivation method.
Among these treasures of the Netherworld, Liu Ming only knew one treasure called "Cold Flame Essence Jade", which was extremely precious. It was said to be a yin attribute spiritual material that could strengthen the physique. It had not appeared in the Nine Serenities for hundreds of years. As for the other treasures, he had never heard of them, but judging from their names, they should all be yin attribute.
"Since the Tiger Dragon Hell Prison can be integrated with these yin attribute treasures, it should also be able to be integrated with other external objects." Liu Ming muttered after pondering for a long time.
Thinking of this, he immediately took out several precious yin attribute treasures among the tributes of the Cold Water City. Since it was difficult to sell, he might as well try it himself.
Liu Ming first picked up a spiritual herb that was as black as ink, which was one of the tributes of the Cold Water City, the Nether Ghost Grass.
This thing contained an extremely heavy yin aura, which might be useful.
After looking at it in front of him, he rubbed his hands, and black gas gushed out from his body, wrapping the Nether Ghost Grass in it.
"Chi la", the Nether Ghost Grass was crushed in an instant.
Liu Ming looked serious, and hurriedly tried to integrate the yin spiritual energy in the Nether Ghost Grass into the rolling black gas of the Tiger Dragon Hell Prison according to the method recorded in the ancient book.
Two hours later, the black gas on his body slowly dissipated. Part of the yin spiritual energy of the Nether Ghost Grass was integrated into the Tiger Dragon Hell Prison, but it was almost of no help to improve the power of the technique.
"It seems that this Nether Ghost Grass and the Tiger Dragon Hell Prison are not very compatible …" Liu Ming muttered to himself, then he picked up a black jade box on the ground, which contained a black jade-like crystal.
A black gas emerged from his hand, wrapping the black jade-like crystal in it …
In the next three days, Liu Ming tried seven or eight kinds of precious materials among the tributes, but the effect was not very ideal. Only one kind of Dark Blood Crystal had a good effect.
However, if he wanted to greatly improve the power of the Tiger Dragon Hell Prison, he needed a lot of Dark Blood Crystal. Liu Ming only had such a small piece in his hand, and it was one of the tributes of the Cold Water City to the Dark King. Obviously, it was valuable.
It was impossible to rely on this Dark Blood Crystal to improve the power of the Tiger Dragon Hell Prison.
"Did I spend so much to get this Nether Prison Handbook, and it still can't be of much use …" Liu Ming could only shake his head and smile bitterly.
Maybe he could find some other treasures to try slowly in the future, but the time limit given by Bi Yan was only two months.
"Right!"
Liu Ming's eyes flashed, and he suddenly thought of something.
With a wave of his hand, a black gourd with the size of a foot appeared in his hand, which contained nearly a thousand drops of Styx River Heavy Water that he had spent twenty years to condense.
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