Every time he comprehended a little mystery of the law, a kind of joy would appear in Ling Feng's heart. This kind of joy is indescribable, prompting him to continue to immerse himself in it, and to understand the mystery of the law little by little.

It's just that the avenue is endless, and Ling Feng's mind gradually merged into heaven and earth unconsciously, and there are faint signs of turning into a Dao.

A moment later, the True Dragon Sword suddenly let out a sword roar, like a heaven-shaking dragon roar, resounding through the sky.

Ling Feng suddenly woke up, his mind returned, and he realized the thrill just now, if the True Dragon Sword warned one day later, he was afraid that he would have to turn into a Dao and merge into this netherworld law.

He had previously comprehended the mysteries of the law with the help of Yuan Shen fragments or in the practice room, and he was systematically responsible, so naturally there would be no signs of transforming into a Dao. This was actually the first time he had comprehended the laws of the Great Dao by himself, so he was immersed in it all of a sudden, and it was difficult to extricate himself.

However, being able to enter the level of transformation also means that Ling Feng has indeed comprehended a lot of the Netherworld Law this time.

At this time, Ling Feng not only comprehended the law of death to a more profound level, but also comprehended the mystery of decay and coldness.

Among them, the mystery of yin and cold has a slight similarity with the mystery of ice, and the mystery of decay can be regarded as a branch of the mystery of death.

At this point, Ling Feng could already try to combine the mysteries and then sublimate them into the power of a perfect law. The Netherworld Law contains a lot of mysteries, and any combination of any few mysteries can derive a new branch law.

The combination of several mysteries at the beginning is only the basic framework of the power of a certain law, and only when the mysteries in it are comprehended to a certain depth can they be sublimated to the level of the law of the Great Dao. It's like just starting a business, although all departments have it, but this is only a framework, and only by developing it and then going public can it be considered to be sublimated.

Ling Feng needed to comprehend the laws of the seven systems of yin and yang in order to combine the laws of chaos. Therefore, he cannot be distracted too much. Therefore, for the Netherworld Law, he does not need to comprehend too many mysteries. His idea is to use death as the core meaning, and decay and cold mystery as the auxiliary, to form a law of the river Styx, but there is still a lack of a weak water mystery.

Immediately, Ling Feng retracted his thoughts and prepared to go to the Ghost King Palace to have a look.

At this time, Concubine You came up to her and said with a smile: "You can be considered awake, otherwise we will have to suffocate here." ”

Ling Feng estimated that this retreat had been a long time since he was hungry. Immediately, he smiled and said, "What about the treasure of the Mighty Ghost King?"

Concubine You hesitated for a moment before handing a Qiankun ring to Ling Feng, looking very reluctant.

Ling Feng's soul thought probed, only to find that this Qiankun ring had a unique forbidden method imposed on it, if he didn't know how to crack it, the forbidden method would explode and blow up this Qiankun ring. No wonder Concubine Youfei gave herself so honestly, it turned out that there was no way to crack it.

The forbidden method of the Yuan Shen level is naturally not easy to crack, but Ling Feng has a system in his body, but it is different, consume 50,000 chivalrous points, refine it, and the forbidden law will be automatically lifted, and the attributes will also be displayed.

This Qiankun ring is called the Netherworld Ring, the grade is as high as the sixth-order middle grade, the space inside is as wide as thirty miles, and it is very stable, much better than this Qiankun ring in Ling Feng's hand. In addition to the storage ability, it also comes with a sixth-order spell that, when activated, fires a black death ray and comes with the Genshin Locking ability. In case of danger, the Nether Ring will also automatically release a defensive air shield to protect the body from destruction.

Only a plane merchant like the Mighty Ghost King would use this kind of high-grade Qiankun Ring, and Ling Feng made a fortune this time!

Immediately, his soul probed in, and found that there were really a lot of good things inside, more than 10,000 blue crystal coins with spiritual power quality close to the fifth-order pill, more than 100 higher-grade amethyst coins, hundreds of fourth-order Xuanyin Pills, more than a dozen bottles of fifth-order Yin Pill, and so on. One of the aquametic coins is worth one million taels, and one amethyst coin is worth ten million taels, which together are worth more than 10 billion silver tickets. In addition, the fifth-order Yin Yin Pill and the fourth-order Xuanyin Pill are also extremely valuable.

However, the most are all kinds of classics such as cultivation exercises, refining tools, alchemy, talisman making experience, etc., as many as tens of thousands of volumes, and the lowest level of each is also a third-level level, most of which are fourth- and fifth-order exercise classics. The origin of these exercise books is also very simple, but after the hand trading of the Mighty Ghost King, all the exercise books were naturally rubbed and printed by him in a sub-volume, and over time, there was this terrifying number of classics.

Ling Feng smiled and immediately said, "Let's go!"

At this moment, three black sword lights came rapidly from the Ghost King Palace, and immediately fell, but they were three stunning beauties holding flying swords.

The third girl saluted and said softly: "The concubine has seen the master!"

"No need to be polite!"

Ling Feng said, and only then did he remember that there seemed to be three concubines in the West Palace of the Mighty Ghost King. He gazed at the three girls carefully, and found that they were all stunning, tall, plump, sexy, and very seductive, and each of them was not much different from the concubine. However, what made Ling Feng happiest the most was that they were not simple vases, and the lowest cultivation was also the peak cultivation of the middle stage of the Martial Sect.

Immediately, after some chatting, Ling Feng learned that the names of the three daughters were Mu Qingfang, Mu Wanrou, and Mu Yunying. Among them, Mu Qingfang is the eldest sister, and her talent is also the highest, she is already the peak cultivation of the Martial Sect, and what she has condensed is the top-grade true yuan. The second sister Mu Wanrou and the third sister Mu Yunying condensed the mid-grade true yuan, which were the peak cultivation of the late stage of the Wuzong and the middle stage of the Wuzong.

According to the three daughters, they were originally the young ladies of the Mu family of the imperial capital, but later the Mu family declined, and they were coveted by the rival family to peep at their beauty, were framed and imprisoned, and finally sold to the strong ghost king.

"Do you know who sold you to the Mighty Ghost King?"

Ling Feng asked, the one who sold them to the Mighty Ghost King must be the subordinates of the mysterious Martial Venerable powerhouse. If he can use this to find out the identity of this mysterious martial artist, he will have a clearer control of the current situation.

Mu Qingfang shook her head and said, "They are all masked people in black, I don't know who they are." However, if you can take our three sisters away from death row in the imperial court, they must be from the imperial court!"

"Imperial Court!"

Ling Feng's face suddenly became gloomy, if that mysterious martial venerable powerhouse was a person in the imperial court, then maybe it was the Great Chu Taizu, then it was the real trouble!

There is also a big difference between a strong martial artist and a strong martial artist, if it is the kind of Great Chu Taizu who has advanced to the realm of martial arts, even if it is the early stage of martial arts, the combat power may not be worse than that of the powerful ghost king!

However, this was just a guess in the end, and then Ling Feng gathered his thoughts and said, "Let's get out of here!"

At this time, Mu Yunying said: "Master, there are more than a dozen sisters in Beiyuan, it is better to bring them together." They also have at least a martial artist cultivation, and they can also help. ”

Ling Feng nodded, even if it was a vase, it would have the usefulness of a vase.