If you keep practicing according to the standards of Thousand Layers of Snow, you don’t know when it will take to reach the level of blood martial arts.

Amid his sigh, Cheng Lingyu took out a secret book, which was the alchemy technique that he had never had time to read before.

Cheng Lingyu temporarily stopped practicing and began to concentrate on studying this alchemy technique. It records some key tips of alchemy and explains many concepts and true meanings that ordinary monks do not understand.

This alchemy technique is not a precious secret, but Cheng Lingyu found what he needed.

Alchemy is a complex process, and the preliminary preparation takes a lot of time. The types and distribution ratios of medicinal materials, the fire of alchemy, etc. are extremely important details.

Cheng Lingyu is concerned about the matching ratio of medicinal materials. Many ordinary medicinal materials can be combined together to refine magical pills. This is the penetration and stimulation of mutual medicinal effects.

Cheng Lingyu has many pills on his body, and sometimes he takes one alone. Although it has the effect of enhancing his cultivation, it has not reached the best level.

If multiple elixirs are taken at the same time and a medicinal effect is formed between each other, it can greatly improve efficiency, increase the amplification effect of the medicinal power, and maximize the medicinal power.

Cheng Lingyu spent two hours to understand and remember the alchemy technique, then took out various elixirs, as well as some elixirs for alchemy, and began to prescribe medicine by himself. He wanted to try a brand new way.

It is very dangerous to use yourself as the experimental subject.

But Cheng Lingyu didn't care. His physique was very special, invulnerable to swords and guns, and was invincible to all poisons. Combined with amazing comprehension and calculation ability, combined with the art of origin, he made him bold and confident.

In the next two days, Cheng Lingyu studied various secrets while practicing and understood the art of refining weapons a little.

Various information resources converged in his mind and reacted in his body, allowing him to quickly sublimate. He only spent eighty demon cores, nine low-grade spiritual medicines, two heavenly holy pills, five three-yang dragon transformation pills, four Ruyi pills, twenty-four Xuanyang pills, and some spiritual herbs and other medicinal materials to expand the second True Yuan sea ten times, reaching the level of the first True Yuan sea.

This is an innovation. If it were not for the combination of various elixirs, spiritual medicines, demon core power, and aggregation and evolution, Cheng Lingyu would need to consume at least eight to ten times more resources.

"It has been halfway through the Huihai stage, and it has taken more than ten days. I guess my senior sister is looking for me, so I have to try to leave here next."

Cheng Lingyu got up, counted the remaining cultivation resources, and had more than ten secret books on hand.

The alchemy and weapon refining techniques obtained from Xuanhuo Gate were destroyed after Cheng Lingyu comprehended them.

There are fourteen secret books obtained from this stone chamber, two secret books for alchemy, three secret books for weapon refining, four martial arts and skills, one poison sutra, two spiritual arrays, one spiritual beast score, and one martial soul score.

Cheng Lingyu had already understood the techniques of alchemy and weapon refining before. The two secret books of the spiritual array are far different from the Heavenly Spirit Map, and they were also understood and mastered by Cheng Lingyu.

Originally, Cheng Lingyu wanted to destroy these secrets, but later he gave up the idea and thought that he could take it out for auction or give it to someone.

The spiritual beast score records the habits and characteristics of the lightning marten, as well as the method of capturing the lightning marten and trying to conquer it, which should be said to be of great value.

The Poison Sutra records twelve kinds of poison techniques, all of which are very good. Unfortunately, Cheng Lingyu was not happy, so he read it and then put it into the hidden spirit ring.

What really interested Cheng Lingyu was the martial soul score, which recorded many characteristic attributes of beast souls and grass and flower souls, which would be of great help to advance to the soul martial arts realm in the future and integrate martial souls.

All four skills are excellent, namely Purple Blood Golden Flame, Thousand Thousand Thousand Strikes, Thunder Palm and Heart Burning Needle.

The purple blood golden flame comes from the Tianhuo Sect among the Three Saints and Four Awesomes. The Tianluo Holy Sect appears in the Thunder Palm. Thousand Thousand Thousand Strikes is an extremely powerful leg technique. It comes from the Shenwu Sect and is known as the best leg technique.

The origin of the Heart Burning Needle is unknown, but it is strange and difficult to prevent, and it is killed with one blow.

Judging from the origin of the four secret books of martial arts, there were masters of the Three Saints and Four Awesomenesses in this stone chamber that year.

The secret hidden in this stone chamber must be extraordinary if it can cause the scramble among the masters of major forces.

When Cheng Lingyu thought of this, he became more determined to unlock the spiritual array in the stone chamber and get the deepest hidden secret here.

After collecting the secrets, Cheng Lingyu began to observe the spiritual array and think about how to crack it.

While meditating, Cheng Lingyu raised his left hand and a vortex appeared in his palm. Fang Tianbao Seal floated heavily in the True Yuan Sea, rolled up waves and turned into a dazzling flame, and a villain condensed in Cheng Lingyu's palm.

This is the Heaven Burning Art practiced by Cheng Lingyu. It originated from the Fangtian Treasure Seal and is a world-class magical power. Now it is just a preliminary introduction.

This villain condensed by flames vivid expressions are like Cheng Lingyu's incarnation. He carefully observed the spiritual array in the stone chamber, and then flew out for a moment, and began to quickly shuttle the spiritual array, following a certain rule.

Cheng Lingyu has two true energy seas, both of which have reached the limit, but he chose to break the formation with his left hand, which is a little cleverness.

The magic knife in Cheng Lingyu's right hand has already untied the first seal, which is amazingly powerful, but here is strange. Cheng Lingyu is afraid of being backfired, so he gave up his right hand and changed to his left hand. This is the reason.

Cheng Lingyu, who had initially practiced the Burning Heaven Art, was still very fragile in controlling the Burning Heaven Flame, and could only use the power of Fang Tianbao Seal to try carefully.

Because of the Tianling Map, Cheng Lingyu knew the method of cracking, and the rest was the power of cracking.

The Burning Sky Flame has a special aura, like a fiery elves, which quickly shuttled through the spiritual formation and was subject to great resistance.

The formations in the stone chamber are extremely profound and have the miraculous effects of sealing and suppressing.

Even if you know the method of cracking, you can't do anything without enough strength.

Cheng Lingyu was concentrating on his efforts and gave his all with his mid-stage Huihai stage cultivation. He felt that he was under a heavy pressure, which made him almost breathless.

One hour later, Cheng Lingyu failed to crack the spiritual array for the first time because he was not as good as he could, and he was just a short distance away.

Cheng Lingyu was not discouraged. Failure was the mother of success. He began to adjust his state, and he floated in the void, closed his eyes, and fell asleep in the stone chamber like that.

Nearby, the unstable light of Mingmiao turned into a light cloud, steadily lifting Cheng Lingyu's body, relaxing his whole body, and combing out his tired body after heavy pressure.

This time, Cheng Lingyu slept all night, woke up the next day and was full of energy and began to crack the spiritual formation for the second time.

With the experience of the previous failure, Cheng Lingyu controlled his strength more accurately this time, and his own strength also improved significantly after waking up. Therefore, this time, Cheng Lingyu spent an hour and a half to finally untie the spiritual array in the stone chamber.

The formation was unraveled, and the spiritual light retreated, and the originally shiny stone chamber suddenly became dark.

The stone door slowly opened, and Cheng Lingyu finally escaped, but the secret in the stone chamber had not yet appeared.

Cheng Lingyu stood in the stone room, his eyes were pitch black and bright, and he was patrolling every corner like a whirlpool, and he felt a strange feeling in his heart.

There is something hidden here, invisible and intangible, but there is a vague sense of it.

The magic eye technique was intimate, and Cheng Lingyu was fully focused and calmly responded, and slowly fell into a dreamless state that could not be thought of.

At that moment, a ray of light appeared in the stone chamber, and a silver-white line emerged from the void, changing in many ways, containing mystery.

Cheng Lingyu's condition was very strange. He looked at the silver-white lines, but his thoughts were as quiet as water. He let the lines change continuously, and he was still as motionless as a mountain.

This scene lasted for a long time, and the changing lines slowly formed a complex pattern, like a certain mark, presented to Cheng Lingyu.

As the mark gradually became clearer, Cheng Lingyu's eyes became brighter and brighter. Wumeng Yongji's thoughts showed a slight abnormal movement. The pyramid in the mysterious space emitted a buzzing sound, releasing the light of chaos.

At that moment, the silver-white lines were shaking violently, and the mark automatically decomposed and turned into a silver snake and drilled into Cheng Lingyu's eyebrows. After a moment, the previous pattern appeared on Cheng Lingyu's forehead.

It is a mysterious and complex mark, containing infinite mystery, releasing a certain breath.

Cheng Lingyu woke up from his dreamless state. The grass in his mind was shaking rapidly. The two leaves opened and closed, and spiritual patterns were flowing. A special mark appeared above, releasing an immortal light.

The lights fell on the leaves of the grass and turned into a complex rune, containing the true meaning of the great way, the charm of the heavenly way, and the mysterious.

Cheng Lingyu stood there blankly, feeling something on his forehead was heating up, as if he was adapting to his body. The feeling slowly dissipated, and finally the mark on his forehead disappeared.

"What's the matter?"

The word "Tians" came from Cheng Lingyu's mind. This is the name of the mysterious mark by the grass, which sounds very special.

It was an extremely complex and profound strange divine seal. Although Cheng Lingyu practiced the art of origin, he was unable to understand the mystery.

"Those people came here to fight for the death of heaven?"

Cheng Lingyu felt surprised that this heaven was a mark, so profound and difficult to solve, what secret is hidden?

While meditating, a loud bang rang out in the underground palace, awakening Cheng Lingyu.

"It seems that there is something happening, go and have a look."

After a flash, Cheng Lingyu left the stone chamber and began to walk through the tunnel.

The underground palace was shaking, with loud noises everywhere, but it was difficult to distinguish the direction.

Cheng Lingyu ran around and spent a lot of time but couldn't find out where the sound came from.

The underground palace was huge, like a dense knot of spider webs. Cheng Lingyu thought about it for a moment, took out the Dingyuan Bead, and according to its instructions, he went to the big cave where the Spirit Pool was located.

After a while, Cheng Lingyu came nearby and finally confirmed that the loud noise was coming from here. Many monks gathered together and rushed towards the big hole frantically.

"Junior brother."
Chapter completed!