After several days of research, Jiang Xingchen finally studied the trigger device and the delay device with the cooperation of many craftsmen, and couldn't help but let out a hearty laugh. In his last life, he lived in a peaceful society, and he was the last person to see killing, even if there were several major wars, he had to make a move. But this time, Xuanyuan Tianzong's massacre of tourists really angered him.

Old man, Mei'er heard the laughter, couldn't care about talking anymore, and quickly ran into the courtyard.

"Boy, is it done, how powerful is this grenade?" As soon as he entered the courtyard, the old man immediately asked loudly and impatiently.

Jiang Xingchen smiled, waved his hand and said: "It's still early, it's just that the most important part has been studied, and it still has to be tested, and it will have to be mass-produced later......"

"That's it, then you're excited, it's boring!" When the old man heard that he hadn't succeeded, his interest suddenly decreased.

"You can't communicate with an uneducated person like you...... It's no wonder that I don't understand your world either!" Jiang Xingchen smiled and glanced at the old man with contempt.

"I'm the next Ao!" the old man was held in one breath and froze in place, you don't understand what my world is. I'm not educated, you're not educated, your whole family is uneducated......

Jiang Xingchen ignored him, turned his head to those craftsmen and said, "Everyone has worked hard these days, take a half-day rest!"

After saying this, he felt that his two eyelids were like lead, sinking continuously, and his body was a little weak. After studying for three and a half days in a row, he slept less than six (months) in total, compared to those craftsmen. He was much more tired, and now he couldn't resist it.

"Sir, no need. We're not tired, let's get the grenades out!" replied one of the craftsmen, and the others shook their heads to indicate that they were not tired.

When they first came together, they didn't know what to do. When they saw Jiang Xingchen treating the Yuan Stone as a real product and damaging it piece by piece, these people were shocked. This Nima is money, it's ruined like this, and we can't earn a single yuan stone in a year.

It can be done after formal research. They immediately threw themselves into it, especially after hearing the damage that Yuanshi could cause by shattering in the confined space, they were even more energetic, they were all from the Moon Shadow Kingdom. Of course, I don't want my country to fall. Although this method of Jiang Xingchen's research is costly. But it is undeniable, it is definitely a big killer.

Of course, their current power against Lei is only limited to Jiang Xingchen's description, so they are eager to study it and see if it really has that much power.

"Okay!" Jiang Xingchen waved his hand and said, "People's energy is limited, you are not tired, I am still tired! Come back in the evening!"

Everyone saw that Jiang Xingchen insisted, and there was no way. I can only go back temporarily.

As soon as the craftsmen left, they came again, and the Moon Shadow Emperor came in person to ask Jiang Xingchen if he was sure. Xuanyuan Heavenly Sect advanced all the way, and the speed was extremely fast, and it was less than four hundred miles away from the capital.

"Whether you're sure or not, I'm not sure, you can only see the effect when you get it!" Jiang Xingchen didn't give a definite answer, he didn't want the people of Moon Shadow to pin their hopes on him, in case of an accident.

As soon as the Moon Shadow Emperor heard this, he understood what Jiang Xingchen meant, and he also knew that he was too anxious! But now that he was in shape, how could he not be in a hurry.

Although he didn't get a definite answer, Jiang Xingchen's research had made a breakthrough, which finally made him feel a little relieved.

The emperor did not stay long, and when he learned the answer, he took the head of the Hua family away, the enemy was approaching, and there were still a lot of things waiting for him to solve.

Sending the emperor away, Jiang Xingchen breathed a sigh of relief, he was really tired these days, this thing was much more complicated than he imagined, although the role of the precision curved array was obvious, but the design of the device also needed to be carefully conceived, although they were all grenades, the use of yuan stones and the use of explosives were completely different things, and besides, he had not specialized in the study of grenades and grenades in his previous life. It can be said that this research is groping towards the predetermined goal. If it weren't for the help of some craftsmen, he really wouldn't have been able to figure it out.

Say hello to the old man and Mei'er, Jiang Xingchen will go back to the room to sleep. But as soon as he entered the house, Pink chased after him, pointing at the crab and chirping, and Xingshi's intention to ask for guilt was obvious.

"Pink, don't make trouble, my brother is very tired and needs to rest!" Mei'er hurriedly shouted, Jiang Xingchen's exhaustion could be seen, which made her very distressed.

The old man's eyes were shining, staring at pink, and his face showed great interest.

"This letter bird is not simple!" He was still wondering outside just now, the crab is a level 20 demon beast, and it is really weird to stick out its tongue and pick its eyelids at a letter bird. He didn't see the scene of the crab hiding pink before.

But now, when I found that this letter bird actually knew how to communicate with people, and one wing pointed at the crab could stay in mid-air, I immediately realized that it was not simple.

"Okay, okay, don't scream, I'm tired, I want to sleep, don't mess with me!" Jiang Xingchen said helplessly.

"Twitter!" Pink was of course not happy, and pointed at the crab with wings and continued to complain: Why can he eat and drink together, good things don't have my share, do you think it's easy for me to protect Mei'er.

"Ah~ I'm really convinced!" Jiang Xingchen was so noisy that his head buzzed with pink, he took out a piece of Ganoderma lucidum and threw it out.

"Twitter!" The pink bird's eyes lit up, and he didn't care about what to say to Jiang Xingchen, so he swooped out, and the speed was so fast that he couldn't see a shadow in mid-air.

"Whew~" The crab was anxious when he saw it, the piece of Ganoderma lucidum that the boss broke off was more than twice as big as the one he gave himself, this is okay, it's not fair, don't be tired and have your eyes dazzled?

The anxious crab jumped in front of Jiang Xingchen and let out a low roar to remind Jiang Xingchen.

But what it ushered in was Jiang Xingchen's feet, which were planted on his head.

"Crab, you have a dull soul, let me rest for the!" Jiang Xingchen stepped on the crab's head several times in a row, turned around and threw himself directly on the bed.

"Nima, why~" The crab wanted to cry without tears, and sat aggrievedly in place and blinked his eyes, tears were about to fall, it was too to bully the wolf.

Mei'er hurriedly stepped forward and patted the crab's neck comfortingly: "I told you, my brother is very tired, don't mess with him...... Okay, stop crying, I'll take you to eat meat!"

"Eat meat, don't cry......" The corners of the crab's mouth twitched twice, and he roared in his heart: "I'm no longer a wolf cub~"

After Mei'er finished speaking, she was about to take the crab out, but the old man walked over at the right time and asked in a low voice, "Mei'er, that letter bird just now...... Is it a monster?"

"No, it's just an ordinary letter bird, but it's smarter than the average letter bird!" Mei'er denied with a smile, this was her secret, and her brother wouldn't let her tell it.

"Liar~" The crab roared inwardly: "It's not a demon beast yet, it's not a low-level demon beast, so ......"

When the old man saw Mei'er like this, he didn't ask anymore, but he already knew very well in his heart that the letter bird called Pink was definitely a demon beast, and the speed of chasing Lingzhi just now was far inferior.

"When did this kid get such a demon beast, at least twenty levels higher, I said how can a crab be like that......"

As soon as the old man thought of this, his mind suddenly flashed the situation that after Jiang Xingchen celebrated his sister's birthday, seven people were fatally killed by a blow, and there was a bloody hole in his forehead, and he suddenly shuddered: "Could it be that this letter bird did it?"

The old man left the room and didn't ask Mei'er, in fact, he could guess without asking.

"It's okay to leave a secret for the little girl, there will be any blind ....... in the future hehe!" The old man couldn't help but let out a sinister laugh when he thought of someone being yin in the future......

That night, as soon as the sky was dark, those impatient craftsmen ran over, and Jiang Xingchen had to fight hard to get up.

At the beginning, Jiang Xingchen used a hardwood shell. After all the qiē was assembled, he pulled out the iron bolt and threw it out, but in the end there was no sound.

Everyone immediately checked the problem and found that the internal afterburner was uneven, the yuan stone was broken into several large pieces, and the release of vitality was not violent enough.

Readjust, real yàn, or not ringing...... Adjust again, real yàn......

After several times in a row, Jiang Xingchen and the craftsman were silent, and then they realized that the device was made did not mean that it was successful, and there were still many places to be adjusted in the future.

The old man and Mei'er have been watching, eating and drinking, and Mei'er is taking care of Jiang Xingchen. Otherwise, he really got to the point of forgetting to sleep and eat.

It wasn't until noon the next day that the wooden grenade finally exploded. There was a thunderous sound, which frightened the crabs.

However, there was no cheering, the craftsmen and the old man were stunned by the power of the grenade explosion, a large crater was blown out of the blue brick floor, the shards of wood that laughed on the thumb flew out more than a hundred meters, and the walls ten meters away from the explosion were all cratered.

"Good guy, it's really powerful, such power, the flesh and blood can really bear it, and the talisman can be broken...... But can you break the heavy armor?" the old man muttered after being shocked.

"Why can't you break it...... Jiang Xingchen smiled in a low voice and said, "The impact alone can shock them to the point of vomiting blood, and they can't move an inch if they break the horse's legs...... And don't forget, this is wooden, if replaced with iron......"

Saying that, Jiang Xingchen walked to the scene of the explosion, observed for a moment, and said in a low voice: "The killing radius should be ten meters, this is hardwood, and it should be more powerful if it is replaced with iron! That is to say, the energy release of a piece of Yuan Stone is greater than the energy released by the TNT explosives in the grenade in the previous life, which is more than enough to deal with the heavy cavalry!"

Then Jiang Xingchen immediately started to use clay firing to make molds, and began to make zuò iron shells......

Another day, when the first grenade exploded in the true sense, the old man, the craftsmen, the crabs, and even the pink, who had just absorbed the energy of the Ganoderma lucidum grass and had been promoted to level twenty-five, were all stupid. (To be continued......)