Lu Xuan's thunder method was not pulled down. In fact, he has now completed all the cultivation of the five inner thunders. However, the five outer thunders are far behind.

With the help of the previous thunder tribulation, Lu Xuan intercepted the power of heavenly thunder and began to try to condense heavenly thunder by himself. However, after trying, Lu Xuan knew that this was not a simple matter. Whether it was the requirement for the quantity and quality of spiritual power, he could not meet the standards at present.

The five thunders in the world, the clouds and water monsters in the outer world, and the mines do not refer to the thunder and lightning on the earth. They refer to the thunder and lightning before and after the Jingzhe. They mainly generate all things, nourish the grains, eliminate insects and locusts, kill the mountain spirits and stone monsters, clear the mountain mist and madness, eliminate dead souls, resist in a restrained manner, and pray for sun and rain. Simply put, they refer to spring thunder. This thunder represents the warm spring flowers and the revival of all things on the earth, so it is called landmines.

Lu Xuan intercepted the thunder energy before and after Jingzhe, and was also included in the list of practice.

Clouds and thunder are like heavenly thunder, and they have the meaning of killing. Generally speaking, folk monks and Taoists practice sacrificial rituals, pray to gods and Buddhas, and ask for thunder from heaven to kill demons and eliminate demons. The lightning that falls is clouds and thunder. People generally believe that it is heavenly thunder. But heavenly thunder cannot be requested by mortals at will.

As for water mines, it is the main force that causes thunder and rain, saves drought, eliminates dragons, poisonous snakes, evil mirages, monsters, and the water palace is the thunder and lightning that protects all things after taking over landmines.

Finally, there is the rarest demon thunder. To be honest, Lu Xuan has never seen the legendary demon thunder so far. The monster itself is afraid of thunder and lightning, and may master the power of thunder and lightning. Lu Xuan can only think of one kind, that is, the dragon.

Unfortunately, he searched for several garrison dragons in the river. He found that most of them were proficient in water-based magical powers. Many of them did not even have the intelligence to open up their minds, but only acted on instincts. Some of them could communicate and said that they had never heard of their colleagues who could control lightning.

Lu Xuan also asked about the existence of the Dragon Palace. After all, these enthroned dragon clans may have the ability to control thunder and lightning? But the other party responded without exception and had never heard of any Dragon Palace. 'If there were really a Dragon Palace, we would have surrendered long ago.' This is the original words of those demon dragons.

Unfortunately, Lu Xuan could only give up the demon thunder temporarily and instead targeted the four types of thunders in heaven, earth, cloud and water. The conditions for heavenly thunder were insufficient, so it was mainly three types of earth, cloud and water.

Relying on the Jingzhe Thunder Energy, Lu Xuan mastered the changes of landmines. However, it is still far from being able to master them as you wish. Cloud thunder and water mines are relatively simple. Lu Xuan observed several times, intercepted some of the thunder energy, and then tried to simulate it in his body. He quickly mastered the corresponding changes. The rest took time to accumulate little by little.

And in this period of cultivation, a crisis that was almost forgotten by Lu Xuan suddenly broke out, the old demon of Black Mountain.

Yan Chixia came to discuss in a hurry.

"I don't know what happened in the underworld. The old demon of Black Mountain suddenly became extremely irritable. For many days, he forced himself to penetrate the world and destroyed three towns." Yan Chixia's tone was full of worry. After all, it was an overlord-level existence in the underworld, and he was really unsure.

"Brother Yan doesn't have to worry so much. Actually, in my opinion, this is a good thing."

"A good thing, tens of thousands of people died! Is this a good thing?" Yan Chixia looked at Lu Xuan with an incredible look.

"I didn't say that it was a good thing for the people to die. It was the action of the old monster in Black Mountain. Don't you think its behavior is wrong?"

After hearing this, Yan Chixia thought for a while, then suddenly realized.

"It's really not right. It is a kind of person who sticks to its own underworld and rarely directly interferes with the human world. Legend has it that he intercepted part of the authority of the underworld and was able to intercept the souls of the human world who went to the underworld and even established his own city of deceased death. I wonder what happened this time, but he actually started to attack the human world."

"The reason is easy to guess. Its city of Death requires a large number of human souls to continuously replenish the ghosts under its command. But over the years, the human path has returned to normal. I guess the underworld is also recovering. The Black Mountain Old Demon may be about to lose control of the underworld."

"It makes sense, it requires a large number of revenge to maintain its status. So this kind of attack will still occur."

"Yes, but not many. It is different from the monsters like the tree demon centipede demon. This guy is a ghost from the underworld, and it takes a price to come to the human world. But even so, we cannot relax. Over the years, the ghost seal on Xiaoqian's body has become very weak. But it has not completely disappeared after all. To be safe, kill it before it takes action next time."

"That's a ghost close to the level of Yama in the underworld. We may be able to deal with it in the human world, but when we get to the underworld, it's probably difficult to deal with it."

"Haha, this is the underworld's business. At most we are just helping. Brother Yan, you can contact the underworld. Tell them that we can enter the underworld and help them encircle and suppress the old demons of Black Mountain. But the underworld has to agree to me with a condition."

Yan Chixia's mouth couldn't help but twitched a few times when she wanted to get the benefits of the underworld. Ordinary monks dared not make such requests casually. After all, even monks would inevitably die. After entering the underworld after death, they would have to let others deal with it.

However, Lu Xuan was not interested in this. Anyway, it is highly likely that after he died, he would travel to the next world. He didn't need to be afraid of the underworld in this world. What's more, he didn't think much of the so-called underworld. After all, it was really embarrassing to be able to be able to seize power by a ghost and throw it to his grandma's house.

"Okay, I can contact the master and ask them to discuss this matter with the underworld."

Lu Xuan never considered that the underworld would refuse their help. As mentioned earlier, this underworld is really a good deal. Even though the order has been restored and the authority of Montenegro is fading, they are still not sure to take down Montenegro. What's more, that guy slaughtered three towns and replenished them. Now it is almost at its peak and it is even more difficult to deal with.

As expected, two days later, Yan Chixia gave a reply.

"The Underworld has replied. They agree with your request." There is no way, Caiji Underworld has no reason to refuse a Jindan master's attack.

Although Lu Xuan said it easily, he was actually very serious. The last time he surrounded the centipede monster, he was so angry that he didn't catch anything in the end. Lu Xuan was upset for a long time. This time he went to the underworld to encircle the old monster in Black Mountain. If Lu Xuan was not prepared for a large-scale plunder, wouldn't it be a waste of his collection habit?
Chapter completed!