"I know what you're worried about, aren't you just worried that the current top-level flying talisman won't be able to run away!" Fu Tianming said confidently.

"Yes, we've discussed this issue before, the top-level flying rune is already the fastest escape rune, is it possible that you still want to develop a flying rune treasure?" Li Changsheng quipped.

"Flying rune treasure is naturally impossible, that is what the monk of the Yudan period who uses the flying magic weapon as the natal magic weapon did before he sat down, it is basically unavoidable, and we have fallen into a dead end of thinking before. Fu Tianming chuckled.

"What do you say?" Li Changsheng thought thoughtfully, as if he had caught something, but it was still very vague, so he didn't bother to think about it anymore, and just asked directly.

"Since the flying rune treasure is not realizable, I want to change the method, or change the direction of research. "Fu Tianming is a bit of a sellout.

"You're talking about inventing a catapult device to catapult the Super Immortal Exterminator Bead over a long distance, so that you can evacuate calmly. The vague idea that Li Changsheng had grasped finally became clear.

"Haha! smart, that's what it means. Fu Tianming stroked his palms and laughed.

"Seeing that you are full of confidence, and you are not worried about the research and development of the Super Immortal Exterminating Bead at all, have you already developed it?" Li Changsheng chuckled lightly as the corners of his mouth rose.

"I really can't hide anything from you, I originally wanted to develop the catapult device and then take it out together. Fu Tianming carefully took out a dark red bead.

"This is the Super Immortal Exterminating Pearl?" Li Changsheng felt the coercion of destroying the world.

"That's right, after a few days of careful thinking, I can develop the ejection device. Fu Tianming said very confidently.

"There's no need to wait a few days, now I'll give you an idea, and it is estimated that the catapult device will be developed soon. Li Changsheng immediately took out the paper and pen, and directly drew a simple schematic diagram of a human firearm, and marked each part with detailed text, which is not to say that Li Changsheng is a firearms expert, but when he was in the human world, he had the intention of converting the pistol into a spirit stone pistol, but later he lacked practical ability and did not continue to do it, and now with this Fu Tianming, I believe that he only needs to draw the drawings to him, and he can make something that satisfies him.

"What is this? The trigger, the breech, the spring, the firing pin, the power unit, the firing device, it's very creative, I originally wanted to use the principle of the bow and arrow to pull and shoot, but now that I have this super idea, I naturally disdain to use the principle of the bow and arrow anymore. Well, the chamber of the gun is a key, it can be operated in the way of refining magic weapons in the Dan period, and the power unit can use the explosion of the primary-level Immortal Exterminating Bead as a power, which is perfect. "Fu Tianming's brain is really super powerful, after such drawings run rapidly in his brain several times, he came to a conclusion that shocked Li Changsheng, and completely refreshed Li Changsheng's cognition.

The chamber of the gun was also the biggest obstacle when Li Changsheng planned to make the spirit stone pistol in the past, but his cultivation was very low at that time, and he didn't expect that he could actually use the method of refining the magic weapon in the Dan period to refine the chamber. Later, Li Changsheng married Dan Yuanying and even turned into a god, so he didn't need such a spirit stone pistol.

Now his cultivation just needs a spirit stone pistol, because this spirit stone pistol is no longer the simple and low-level backward spirit stone pistol that was conceived before, and the current spirit stone pistol not only needs spirit stones as power, but also can use magic stones, and even use low-level immortal exterminating beads as power, which completely surpasses the idea of the earth.

Although it still continues the name of the spirit stone pistol, its power has exceeded expectations, but this gun chamber needs to be refined by refining the magic weapon in the Dan period, so it will limit the production of the spirit stone pistol, but it doesn't matter, there is no need to make too many of this kind of big killing weapon, only a few are enough.

After all, this kind of great killing weapon that can kill the Transformation Stage lies in a sudden attack, otherwise the Transformation Stage Monk has prepared in advance, and there will be no chance to launch it at all.

Also, this kind of big killing weapon that can cross the two levels to kill the predecessors can continue to be developed, and at the same time, you have to pay attention to secrecy, but anyone who has seen this kind of big killing weapon must be killed, otherwise once the news spreads, it is unlikely that there will be a chance to use it again.

According to the drawings provided by Li Changsheng, the genius Fu Tianming began to make detailed drawings, and began to prepare materials for the parts that needed to be refined, he directly prepared four materials, and then began to refine two materials with Li Changsheng each.

"What's the matter? The time it takes to refine two materials at the same time is also doubled, so the Fenghua Xueyue sisters will come to the door at any time?" Li Changsheng obviously didn't agree with directly refining two materials.

"It's not to refine two materials at the same time, but to refine one material, in case some of the materials are misrefined, or broken, you can use another material to make up for it, this refining work takes a long time, it takes about a year of retreat, we both retreat separately, you retreat for a year first, and then I will make the rest of the spirit stone pistol in this year's time, so that at least two spirit stone pistols can be made in about two or three years." Fu Tianming explained in detail.

"I see, let me arrange the affairs of the East Factory in two days, and no one knows that I have advanced to the Dan Stage yet, right?" Li Changsheng said lightly.

"Of course not, I won't let anyone outside know everything that happens in this secret room. Fu Tianming smiled slyly.

"That's good, the four materials are handed over to me, it will take about two years or so, I will refine them together, and the news to the outside world is that I am impacting the bottleneck of the Dan period, as long as I show my cultivation in the Dan period after two years, then no one will doubt it anymore. Li Changsheng said with confidence.

"What Mr. said is very reasonable, then it will be hard sir, this refining work is the most mana and mind, I hope Mr. can prepare some pills to increase mana in advance. And I feel that it is really refreshing to follow Mr., don't worry, Mr. only needs to refine these two parts of the materials, and leave the rest to me. Fu Tianming said excitedly.

"It's nothing, this is all necessary preparations for our early revenge, as long as I can destroy the two demon girls, I can make any sacrifices. Fu Tianming said with hatred, after all, he has a good relationship with his grandfather, and all his skills are taught by his grandfather.