Seeing Hu Chacha's fur becoming smoother after eating the little red mushroom, Jiaojiao felt a little jealous and asked with her hands on her hips, "Why don't you give it to me?"

Qi Jing looked up in bewilderment, "You're almost a thousand years old, this little spiritual power is useless to you."

Jiaojiao frowned and said, "Maybe if I eat it, I can turn into a dragon immediately."

"No, it's not time for you to transform into a dragon yet. Wait a little longer." Qi Jing lowered his head and continued to stare at the mushrooms on the grill. He was a little anxious. "Isn't it ready yet? It should be edible, right?"

Gu Zhou turned the bamboo stick and said, "It will be cooked soon."

Qi Jing could only continue to wait, as the roasting was a little slow.

In the evening, the Qi family had a mushroom feast, including roasted mushrooms, fried mushrooms and mushroom soup. At the dinner table, they couldn't help but discuss the poisoning incident in the live broadcast room last night. It was really outrageous.

Originally, Qi Jing wanted to continue watching the live broadcast after dinner and just fell asleep after watching it, but Gu Zhou was captured by Qi Mo to be a soldier, and Qi Jing also wanted to join in the fun, so he happily followed him to another small bungalow in the manor.

It used to be a place for miscellaneous items, but now it has been cleared out and is used to store a bunch of messy machines.

Qi Jing followed Gu Zhou around and tried each machine. It felt quite dangerous.

Qi Jing asked curiously, "What are you going to do?"

Qi Mo glanced at him and explained, "Study the magical instruments of Xuanmen. They can't always be swords and knives. They should keep pace with the times."

As he spoke, Qi Mo walked over and pressed a mechanism. The wall opened, revealing rows of guns and a small mortar.

Gu Zhou's mouth twitched, "Isn't your hand a bit too big?"

"I applied for it through formal procedures, so there's no need to worry about breaking the law." Qi Mo answered seriously. The Qi family made great contributions in the war seventy years ago. Even now, there are many companies under the Qi family that cooperate with the government.

The Qi family invests money in research on national-level projects every year, so it is really easy to get something like this.

Gu Zhou cooperated by giving a thumbs up, then pulled a chair and sat down, seriously discussing the principles of the Xuanmen magic weapon with Qi Mo.

"In fact, Xuanmen magic weapons are not that strict. As long as the materials can withstand the released vital energy, there is no problem. But the most important thing for us now is that the vital energy in the two worlds we know of is very thin. Apart from the dragon cave discovered in the Mo family, we haven't found any more spiritual stones, that is, jade stones rich in spiritual energy. Therefore, there is not enough to support the powerful lethal weapons we need."

Qi Mo also sat down. "But even modern high-tech weapons can't harm those monsters. There will be more side effects, which will hinder the future reproduction of mankind."

"That's correct for now, so let's think about it from another angle. Our world's vitality isn't enough to destroy those monsters, but what about that world's yin energy? Can we gather it together and use it to defeat those monsters?"

Qi Mo thought for a moment and then replied, "It's theoretically possible, but it's not easy to gather all that Yin energy."

"I need Yu Duoduo and Gu Mo to conduct an experiment on this matter." Gu Zhou raised his eyes and looked at Qi Mo. "They both have extremely Yin fates. Yu Duoduo has also learned to summon evil spirits, which is essentially the same as summoning Yin."

"How dangerous is it?"

"I can't estimate it yet."

Qi Mo fell silent. He didn't want Gu Mo and Yu Duoduo to take this risk, as they might lose their lives.

Gu Zhou also had this concern, so he did not directly put forward this suggestion. Moreover, even if it was a feasible method, it would take a long time to complete, which was not a wise choice no matter how you looked at it.

Seeing that neither of them spoke and the atmosphere was still a little heavy, Qi Jing said weakly, "Actually, they don't have to go."

They both looked at Qi Jing, and Gu Zhou was also a little confused, "What do you mean?"

"Didn't Mo Qian give you a crystal stone before? There is a lot of resentment hidden in it."

There was indeed such a thing, but Gu Zhou was still puzzled. "But this situation also requires opportunity and time, and it cannot quickly solve the problems of that world."

Qi Jing replied, "I know a formation that can gather that Yin energy and store it in crystals, so I can take it out and use it whenever I want."

Gu Zhou was so angry that he laughed. He pinched his cheek and leaned closer, "Why didn't you tell me such a good idea earlier?"

Qi Jing whimpered twice, and after being released, he said, "You didn't ask me."

Gu Zhou and Qi Mo were both speechless. This guy was powerful, but his mind was not focused and his brain was stupid.

Qi Jing was deeply hurt by this look and said angrily, "You despise me again, I'm going to tell the Second Master."

"Alright! Don't be angry, don't be angry." Gu Zhou held his face and soothed him, "First, tell me what formation it is? We need to find a chance to try it out."

Qi Jing thought about it carefully, took out a pen and paper from the ring and started drawing. It was very complicated, and Qi Mo couldn't understand it at all, but Gu Zhou could understand it a little.

"Is this going to use Yin energy as the basic power?"

Qi Jing nodded, "This is not good, so I didn't teach it to Gu Xuanyi. But he is very powerful. He developed a magic move on his own. It is essentially similar to this, but it is more powerful. As long as the formation is set up well, the Yin energy within a radius of a thousand miles will be attracted in."

"That is, within 500 kilometers."

Qi Jing didn't know how to calculate kilometers either, so he just responded vaguely to Qi Mo and continued to draw the formation carefully.

Gu Zhou had already discussed the production of weapons with Qi Mo. Gu Zhou stood up and walked around the room with Qi Mo again, and chose a targeted mortar.

Based on previous experiences, Gu Zhou suggested, "We can use the scrap materials left over from the battlefield for a second processing. When I was making the space ring, my uncle told me that not all materials can withstand so much Yuan Qi. The reverse is also true. Since we are going to use Yin Qi to drive it, the material of the weapon must be stained with blood."

Qi Mo nodded, "I'll find a way to get the materials. You can dismantle the mortar and give me a blueprint."

Gu Zhou made an OK gesture and started to dismantle it. He had to study the principle and it would be best to add a tracking and positioning function to avoid missing the target. The lethality also needed to be studied carefully.

Qi Jing also quickly drew the formation and showed it to Gu Zhou. The runes were very complicated and Gu Zhou couldn't remember them for a while.

Gu Zhou left it alone at first, and continued until he completely dismantled the mortar and drew out the basic principles before going back to rest with Qi Jing.

The next day, Gu Zhou began his own research and used the remaining copper coins to make a small mortar test.

Qi Mo acted quickly and immediately set up a studio for Gu Zhou, preparing all the machines Gu Zhou needed for him to tinker with.

It took Gu Zhou three days to make it. They were directly teleported to Aiduo's home. Aiduo happened to have returned to her hometown, so they could test it on the mountain by setting up a barrier around it.