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"Definitely. Ye Shenyu also sighed lightly.

"Perhaps, we can try to burn out the methane in this cave first," Yang Di thought for a while, and said with the fire: "After the methane is burned, there will be carbon dioxide and water left, carbon dioxide will dissolve in water, and even if it can't be dissolved, the high density will make it sink to the surface, and if we make oxygen, it will float above, and we can breathe standing up." ”

"You have a lot of ideas, but if you want to burn out all the methane here, you also need a lot of oxygen to help burn, are you sure that your Dao skills are enough to electrolyze so much water?" Ye Shenyu's cold and pretty face showed a speechless look, this guy's current performance is really impressive, but on the contrary, he has a taste of relying on him to live.

"Well, it's going to be a lot of work, but I can pass that sect on to you, and we'll do it together. Yang Di said.

"Okay!" Ye Shenyu agreed, and naturally made an unreserved effort.

"Wait, maybe there's a better way. Yang Di thought about it and decided not to use Xiao Wuji Thunder Hand.

That's an entry-level Dao technique, it's too powerful, maybe it can be used better.

As he spoke, Yang Di flipped his wrist and took out the Zichen Talisman, and his spiritual sense probed into it, and he began to read the secret book of Yaochi left by Xianyin, with a focused expression.

Now that his cultivation has improved a lot, Yang Di almost forgot that he could try to practice a few of the more powerful Dao techniques.

In the past, when Xianyin was taught in person, someone's strength was low, and his qualifications were dull, so he was stunned like listening to a book from heaven.

Now Yang Di has the cultivation of breaking through the Xuan Realm, and his qualifications have been reborn for the second time, so he naturally has greater confidence to give it a try.

After reading for a long time, Yang Di was not greedy for merit, he weighed it again and again, and finally selected a Taoist method called "Nine Heavenly Thunder" among many Taoist techniques.

In fact, this Dao method is also very profound, but it is better than other powerful treasure arts, it is not obscure, you can cultivate a little bit of the path first, wait for time later, and then slowly improve.

"What a profound Thunder Dao Dao Technique!" After getting the imprint of that Dao Method, even Ye Shenyu was quite surprised.

This Nine Heavens Thunder, the decision is already at the level of treasure arts, if it is in the period when ancient cultivation was prevalent, it must be the method of a great sect, and this guy can actually obtain it, it is really amazing.

"Let's hurry up and cultivate, don't try to practice to a high level all at once, just get a first glimpse of the way. Yang Di sat cross-legged, and then began to seriously evolve those Dao imprints in his consciousness.

Ye Shenyu nodded, and quickly entered the state of enlightenment.

This process lasted for nearly two hours, and it was naturally difficult to learn the advanced Dao technique two or three times, and it was necessary to continuously evolve the Dao Law imprint until the heart felt it, and then it could be regarded as the first glimpse of the doorway.

In the future, powerful Dao techniques usually have multiple fields of early stage, small success, great completion, consummation, and transformation realm, and their power is not the same.

Ye Shenyu was the first to open his eyes, and after seeing that Yang Di was not ready, he continued to move forward.

She is a white jade fox, and now she has extremely high qualifications, and she has been cultivating the Tao for hundreds of years, during this period, she mainly cultivates the Dao heart, and for a long time, she has been improving her state of mind.

This is very important for the creatures of the demon race, unlike the human race, although the demon race also has a talent, but it is more about the acquired efforts.

Some powerful demons will even go through three calamities and nine tribulations, transform step by step, and become demon immortals.

The path Ye Shenyu took was a little different from that, in the long years, she was not in a hurry to improve her cultivation, but was gathering the foundation of the Dao Heart.

This decision is the embodiment of great perseverance, don't look at those big demons and evil demons one by one to cultivate to be powerful, in fact, the cultivation of those demons has basically come to an end, exhausted all the potential, unless you eat any elixir, it is difficult to make great achievements.

Ye Shenyu is different, in the realm, she has just set sail, and in the future, even raising the god realm is not the limit, and there is still the potential to impact a higher realm in the future.

This is the characteristic of demon cultivation, unable to endure the loneliness in the early stage, and the achievements in the later stage will be fixed at a very low level, and there is no turning back.

Not long after, Yang Di also woke up, and the two fell into the water at the same time, trying to perform thunder magic underwater.

Of course, there is a danger of injuring oneself, but there is a way to solve it, before performing the thunder technique, Yang Di and the others took a breath of true qi and sprayed it out through the skin, forming a layer of air cushion on the surface of the body to isolate the water.

This way, you don't have to worry about getting hurt by the thunder you sacrificed!

"Open!"

"Open!"

After the two of them were ready, they sealed almost at the same time and played a Dao technique in the water.

In an instant, two dragon-like purple electric lights scurried wildly in the water, and they already had a bit of the power of natural thunder and lightning.

The Nine Heavens Thunder is a profound thunder path treasure technique, and its power is naturally far from being comparable to that of the Xiaoben Thunder Hand, even if it is the first glimpse of the doorway, the arc released is also the lightning and thunder in the entire underwater tunnel.

Around, dense bubbles evaporate upwards and eventually break open on the water skin, decomposing oxygen and hydrogen.

Boom! Boom!

Because of the electric sparks, the moment the oxygen disperses in the cave, there is a violent explosion of methane and hydrogen.

The entire cave was shaking, and Yang Di and Ye Shenyu felt the violent movement above their heads, but across the water layer, they were not attacked by the tongue of fire.

"Although I am a demon, but over the years, I have also learned a little knowledge of the human race, it seems that you have missed one thing again. After the first wave of explosions stopped, under the water, Ye Shenyu Chuanyin laughed playfully.

"Yes, it's all because I used to sleep in chemistry class, and I almost forgot that hydrogen after water decomposition is also a combustible gas, and we seem to be going around in circles when we do this. Yang Di smiled helplessly, naturally realizing the problem.

Water is electrolyzed into hydrogen and oxygen, and at the same time, this is also a reversible cycle, hydrogen and oxygen are burned, and then turned into water and sweat!

Although the wave just now must have burned out a lot of methane, but in the future, the effect will get worse and worse, because most of the oxygen will be burned and consumed by the decomposed hydrogen.

"Do you have anything that can hold hydrogen?" Ye Shenyu asked.

"By the way, don't say it, there really is!" Yang Di was stunned for a moment, and then took out the eight treasure bottle excitedly.

This Dao Gate artifact has not yet been returned, but it can be used as a treasure to store hydrogen at the moment.

Don't look at the small size of the Eight Treasure Bottle, but in fact, this thing has a Qiankun order inside, and like the Qiankun Talisman, it can hold a lot of things.

Subsequently, Yang Di began to think about how to distinguish the cathode and anode electrodes from the current released by the thunder technique.

If Yang Di remembers correctly, it seems that the cathode electrolyzes hydrogen gas, and the anode electrolyzes oxygen.

"It seems that you are really stupid, what's so difficult about this, the treasure art of Nine Heavens and Heavenly Thunder, a little later, there are two kinds of Dao rules, Yin Thunder and Yang Thunder, which can not only combine the power of open-air thunder, but also separately exert the power of thunder in a certain direction. Ye Shenyu chuckled, she had evolved a little more backwards just now, so she had already touched some slightly powerful levels.