The location of the three caves was on the edge of Wanling Peak, and the big people knew that it was Lin Xuanyu's territory, and such a small explosion was not enough to alarm others.

Lin Xuanyu, the deputy head, paid special attention to the situation of Lin Xiaoxian and Xu Xiaoyan, and at the moment of the explosion, his spiritual sense swept over this area, and then he observed these people in the sky.

Qian Youyuan got up from the ground, his chubby body was still a little trembling, he wiped a handful of mud and sand from the corner of his mouth, and looked at Han Yun with a resentful look in his eyes.

"I always think you're trying to kill me......"

"How is it possible, didn't you activate the magic weapon body protector? You ran out now, I can't be sure of the power of the explosion, I don't know if I can seriously injure Zhao Feilong. ”

"Do you think that ordinary magic weapons can withstand the full range of attacks of the Yuan Infant Cultivator?"

Qian Youyuan looked like he had palpitations, and his eyes suddenly lit up after a while, if he used this method to pit Qin Tianyue and Qin Tianyi, he would definitely succeed. He ran up to Han Yun and asked, "How much is such a magic circle?" ”

"It's just a preliminary test, it's not as simple as you think. ”

Han Yun shook his head slightly, he took the three array flags again and painted them into the formation patterns and runes, and after placing them, he thought about how the rune paper could store oxygen and hydrogen.

If the storage of oxygen and hydrogen cannot be solved, blank cards are required.

He only had 6 eternity points left, and it was a bit of a waste to store oxygen and hydrogen with blank cards. In the final analysis, there are too few ways to obtain eternal values, otherwise blank cards are not a problem at all.

After thinking about it for a while, Han Yun felt that he still had to start with the container, that is, he still needed the knowledge of refining weapons.

Han Yun took out three high-grade spirit stones from the space ring given by Qian Youyuan, exchanged them for 240 spirit points, and learned both the "Beginner's Manual for Refining Weapons" and the "Beginner's Manual for Puppets".

There is a lot of knowledge about refining tools and puppets, and it took a while to receive them.

The remaining 40 spirit points can't buy anything, Han Yun looked at the lottery options in the treasure vault, and made a decisive move.

"Reward Randomly Generated ......"

"Congratulations on getting a card of 30% of Ye Hongyi's combat power. ”

[Ye Hongyi's combat power card: After use, you can have 30% of Ye Hongyi's combat power for 30 seconds. 】

Han Yun looked at the cards displayed on the screen and was slightly stunned, he didn't expect that the first lottery would be such a result, so he simply drew the remaining 30 spirit points.

The result is very scientific, except for a three-percent combat power card of Ye Hongyi, the other three times are thank you for participating.

All lotteries with thank you for participating are pitfalls, Han Yun restrained the urge to exchange spiritual points and continue to draw, and shifted his attention to how oxygen and hydrogen were stored.

Through the refiner, the problem of oxygen and hydrogen storage can indeed be solved, and any bottle and jar can be refined, which can absorb, store and compress oxygen, but this takes a long time.

Han Yun suddenly patted his head, why did he refine it himself, isn't Qian Youyuan, the big rich man next to him, just ask him to borrow it.

Qian Youyuan ran back into the formation at this time, holding a blue fireball in his palm, his expression full of excitement and excitement.

Han Yun hurriedly asked, "What do you want to do?"

Qian Youyuan turned around and replied: "You're right, you have to be in it to understand the power of the explosion, and I decided to experience it for myself." ”

"Don't ...... you"

Without waiting for Han Yun to finish speaking, Qian Youyuan threw the fireball out.

Looking at the arc of the fireball floating in the air, another ball of flames appeared in Han Yun's sight, and the powerful impact carried the lake water in all directions.

Qian Youyuan's body was swept away by the impact again, and he fell to the ground for a while without moving.

Lin Xuanyu, who had been paying attention to the situation below, was silent.

To be honest, he, a thousand-year-old monster, didn't even see the subtlety of the formation, why a simple isolation formation would produce so much power when it was hit by the fireball technique.

Lin Xuanyu didn't pay much attention to Han Yun originally, but now he felt that Han Yun had to pay attention to it.

"It's fine, just fainted. ”

Han Yun went over to check the situation of Qian Youyuan, and he couldn't understand what was in this fat man's head, and he knew that it was very dangerous, so he had to experience it himself.

He didn't know that it was precisely because it was dangerous, so Qian Youfang wanted to experience it for himself. He just wanted to trap Qin Tianyue and Qin Tianyi, but he didn't want to kill people, if the power was too great, he would have to use this method later.

Han Yun shook his head helplessly, he took out all the array flags, and found a shady place under the tree to quietly draw the formation patterns and runes.

For a moment, Han Yun felt that someone was peeping. He thought about it for a moment, and thought it was strange that no one had come to investigate, after all, there had been two big explosions.

Xu Xiaoyan knew a little about formations and runes, and she saw that Han Yun had set up another set of formation flags. After waiting for a few minutes, he stood in and performed a fireball spell.

Han Yun noticed the fluctuation of spiritual power, and when he opened his eyes, he saw the blue fireball in Xu Xiaoyan's palm, and hurriedly stopped: "Xiaoyan, if you have something to say, we may have been noticed, don't make any more big noise." ”

Xu Xiaoyan pointed to the area around her and asked, "Is it possible to increase the power of fire-based spells here?"

Han Yun nodded and replied, "Yes, that area is full of combustible gases, and the other area is mixed with combustible gases. ”

Xu Xiaoyan asked again, "Does the fireball charm work here?"

Han Yun took out a fireball talisman, then handed it to Lin Xiaoxian beside him, and said, "Silly cute, you go and try it, but be careful not to exceed the range." ”

"Okay. ”

Lin Xiaoxian happily took the fireball talisman and stood in the area with extremely high oxygen concentration, and felt that his mind was much clearer in an instant.

She carefully activated the fireball talisman, only to see that the spirit talisman was instantly engulfed by blue flames, and then a blue fireball that was far beyond the scale appeared.

This is a fireball with a diameter of almost one meter, which can already be described as a large fireball.

Fortunately, Lin Xiaoxian's control ability is very strong, and she smoothly controls the movement of the fireball until the spiritual power provided by the fireball talisman is exhausted.

When Xu Xiaoyan saw the change in the fireball talisman, he had the idea of using the fireball talisman to smash Zhao Feilong to death. However, every time she saw Han Yun arrange the formation flag in the water, she asked, "Can the cloud platform arrange such a formation?"

"No, but it can do the same. ”

Han Yun didn't explain the principle to Xu Xiaoyan, he only used this set of formations to produce oxygen and hydrogen. On the cloud platform, he will prepare a strengthened version of the isolation formation for Xu Xiaoyan, and then inject enough oxygen and hydrogen gas, and it is estimated that the battle can be ended with a detonation.

Xu Xiaoyan said bluntly: "I want to use the fireball charm to smash him to death." ”

It's a good idea, but it's very oxygen-intensive. Considering the uncertainty of detonating hydrogen, Han Yun decisively exchanged for a blank card and stood in the high-concentration oxygen area to start making cards.