"Well...RPG...AK..." Zheng Yichen pinched his chin and looked at the two weapons in front of him. He passed by Baidu before traveling through the principles of the gun. In addition to the alchemy and engineering knowledge of this world, the difficulty of finding it was not high. As for memory, as his mental power increased, he found that even though he could not recall everything he had seen in detail, he could probably think of it.

This kind of hot weapon was made of materials by Zheng Yichen. As for the magic weapon, the magic weapon made of it is limited to cold weapons. If you are a little more complicated, you don’t need to think about it, let alone a weapon with a precise internal structure such as a gun, Zheng Yichen can only make out physical objects.

While Zheng Yichen was considering whether to add the hot weapon to the summoning book of the Demon Soldiers, a ghost maid came over and curiously grabbed the RPG that Zheng Yichen placed aside...

"Well! Let's test the performance first. It's true that this thing cannot be summoned and projected..." Zheng Yichen muttered to himself in a little entangled manner. The magic weapon can be easily loaded into the magic weapon summoning book purely because of its structure entirely composed of magic. This kind of physical weapon is not that convenient.

The magic power consumed when a magic weapon is summoned and used is one-time. If it is a gun, it can be completely modified to the bullet that is fired to pay extra magic power! This is a good way to summon magic power to the magic weapon in the book circle! Unfortunately, it cannot be used like a magic weapon.

Zheng Yichen, who was considering how to make a breakthrough in this aspect, accidentally turned the corner of his eyes to the side and tried the RPG version of the ghost maid on his shoulders. He suddenly became frightened, "Wait! Don't pull the trigger!!"

The little ghost maid turned her head and looked at Zheng Yichen with some confusion. The reason why she was able to make such a move was purely because she saw Zheng Yichen controlling the alchemy puppet. She did not understand the usage of PRG, nor did she know the danger of this thing, so when she turned her head, she silly pulled the trigger...

boom--

The ghost maids who were cleaning the castle heard a loud noise and couldn't help but look at the place where the explosion sounded. One wall of the castle was charred and there were a few cracks. The ghost maid who knew that they were in trouble threw the RPG she carried at Zheng Yichen's feet with a loud noise and ran to nowhere.

"...This wall is really strong." Looking at the almost lossless wall in a daze, Zheng Yichen said dazedly. RPG rockets are not pure explosive structures. Zheng Yichen didn't know the formula, so he could only try to mix the other world version of explosives from alchemy knowledge. Although they are explosives, they contain magic, so their power is even stronger. Although this is a trial version, it is several times stronger than the rockets in the previous world.

But... it's useless. At that time, Zheng Yichen thought that the wall would collapse, but it turned out to be black. If there were a few cracks, it would be over?

"Can I say this has nothing to do with me?" Looking at the ghost maids in front of me who came to seek guilt, Zheng Yichen pulled the RPG at his feet aside, blinked his bright longan eyeballs, and said innocently.

These ghost maids didn't say anything, but threw a large rag that could wrap them all in front of him, and provided a large bucket of water...

"Okay okay, I'll go clean it up." Sighing, Zheng Yichen picked up the bucket of water to wipe the black marks on the wall, and sorted out the things that were blown away due to the air waves. No matter what, Zheng Yichen had already seen the power. It was much more powerful than the fireball he rubbed out. It was enough to hit him directly, which was enough to make him drink a pot.

This is a trial version. The power of the full version can be further improved. The knowledge wealth in the underground library is too huge. Zheng Yichen has benefited a lot after digesting some of it. It is just the brainstorm brought by his alchemy knowledge and his own knowledge in another world. Zheng Yichen can extend many versions just by RPG ammunition.

In a world with magic, the rockets fired are not only exploding flames, but also icy explosions and other things can be achieved!

"Oh, thank you." Zheng Yichen, who was struggling to clean up the burnt marks on the wall, looked at the little head protruding from beside him, and washed it in the bucket she raised with a rag. Seeing that he had no intention of pursuing the incident just now, the ghost maid breathed a long sigh of relief and showed a big and bright smile to Zheng Yichen.

Star City, because of the appearance of the magic weapon summoning book, the sales of magic weapons here were greatly impacted. Even people from other cities came to Star City with their purpose to get a magic weapon contract. After selling several magic weapon summoning books at high prices in the black market, Zheng Yichen gave up this way of making profits. This kind of thing is enough to do a few times, and it is easy to cause trouble if you spend too many times.

Besides, these books have brought him great benefits, which makes Zheng Yichen regret that he had dispersed the original ones. Was it too casual?

After leaving some gold coins responsible for expenses, the remaining income was replaced by Zheng Yichen for various materials. As for the channels, Zheng Yichen also had it, that tavern. Speaking of which, the tavern is really powerful. It is a tavern on the surface, but it actually involves a lot of business. Zheng Yichen needs many materials that are difficult to buy.

But in this tavern, I quickly got what I wanted. Although I had to pay a little more, the extra costs were nothing compared to delaying time and waiting.

When Zheng Yichen buried his head in researching and invention, some people found Petty. After Zheng Yichen solved a problem, he found that Petty had disappeared for two days. He had no way to find people, so he could only find the waiter in the tavern.

"We are very good at finding people, but who are you looking for?" Zheng Yichen looked at the waitress in front of him. Although she still kept her smile, he could still see the subtle reaction contained in the expression of the waitress named Belin at this time.

"I want to find a girl named Petty." Zheng Yichen said in a deep voice. Compared to people in this world, Zheng Yichen knew that his experience in dealing with people is too immature. So far, he has also summarized an experience. When doing certain things, try to say less and do less to avoid revealing more flaws.

"Yes, but I need to know why you are looking for her." Belin said.
Chapter completed!