Chapter 633: Trebuchet, thunder and fire

Ye Chu took a look at the ores that Aman had pulled. These were the precious ores within the Celestial Demon Race.
Its value is also very high.
"What do I need this time?"
Ye Chu took Aman to his warehouse.
"Boss Ye, now our Celestial Demons don’t have that strong demand for weapons. Now all the beast masters have been trapped by us in the northern fortress. They have nowhere to escape. I’m here today and I’m ordered to ask you for advice. Here's how to break the city!"
Aman pointed to some ore behind him and said.
"A small gift, no respect, I hope I can get Mr. Ye's advice!"
"No weapons?"
Ye Chu raised his brows and looked at Aman in surprise.
"I have learned about the recent situation, but as a middleman, I really can't help!"
"We also know that the husband is embarrassed, so if the husband has any weapons that can play a role in the siege, we can also buy it at a big price!"
Aman said softly.
"Hehe, you can't help me if you want to tell me, but if you want to talk about weapons, I really have a treasure on my side!"
Ye Chu suddenly laughed.
Speaking requires skill.
Aman suddenly laughed when he heard what Ye Chu said.
If you ask for advice, Ye Chu will definitely not agree to you, but if you want to buy weapons, there are a lot of weapons for siege.
In fact, Ye Chu only needs to give them a little technological weapon, and he can take it down casually.
It doesn’t take that long at all.
Bringing Aman to the warehouse, this was something Ye Chu had prepared for them.
Earlier, Ye Chu had understood and analyzed the current situation.
If the beast guards did not counterattack, they would only have a retreat from the northern fortress, and there was no way to retreat from the north to the sea.
The Beast City is the only offensive point of the northern fortress. It occupies the right time and place. As long as it stays on guard, there is no way for the demons to enter.
In the current situation, as Ye Chu thought, the beast master was trapped in the northern fortress, and the demon clan had nothing to do.
In desperation, they can only turn to themselves for help.
The siege weapon Ye Chu provided was an ancient trebuchet.
This is the simplest, manufactured using mechanical power.
But this trebuchet is different from the trebuchet we see in movies and TV shows.
The ore that Aman brought was a kind of mineral called sky saltpeter, which was actually a raw material for gunpowder.
However, this sky saltpeter does not burn, but needs to be combined with other things to achieve the effect of burning and exploding like gunpowder.
Ye Chu tried to synthesize it and created a gunpowder that was stronger than gunpowder.
Ye Chu called him Lei Huo Breaking the sky, and his name was also Diao Zhi Tian.
This thing is a secret recipe. It doesn't mean that the demon clan can make it with raw materials. Ye Chu has specially researched this thing. If you study it privately, don't blame Ye Chu for not reminding it.
The materials on the catapult are also specially refined, and both distance and durability are very good.
"This thing is called a catapult. You only need to put a big stone on it, then pull down this switch, the stone will be projected out, and the height and distance can be controlled!"
Ye Chu gave Aman a brief introduction to the use and power of the catapult, then put the stone on it and let Aman take a look at the real power.
I saw that the huge stone was easily hugged by Ye Chu, then aimed and activated the switch.
Whoosh!
The huge stone flew out directly, and saw an unexpected house one kilometer away, which was directly beaten to pieces.
"Of course, this is just an ordinary stone, I still have great power here, but the more precious thunder and fire broke the sky!"
"Thunder and fire? What is that?"
Ye Chu took out the Thunder Fire he had developed.
Seeing the thunder fire the size of a watermelon burst into the sky, Aman curiously touched it with his hands.
"do not move!"
Ye Chu gave a soft drink, and Aman immediately shrank back in fright.
"This thing is much better than the stone just now!"
Ye Chu put it on top of the catapult, then pointed to the fuse above and said.
"Light this with flames!"
With that, Ye Chu lit it, only to see the fuse began to burn slowly.
This was designed by Ye Chu deliberately, otherwise if the speed is too fast, it will explode before launching.
"This is called the fuse. His burning speed is fifteen seconds. You have to calculate the time, or he will explode in your hands!"
With that said, Ye Chu activated the switch, and then fired Thunder Fire into the sky.
Whoosh!
Leihuo directly flew out, this time the launch distance was farther than before, reaching a full 1,500 meters.
boom!
Under Aman's curious eyes, the thunder and fire burst into the sky and exploded in the distance.
A huge mushroom cloud rose slowly.
Ye Chu has tried it. Although the intensity of this explosion looks great, it is not so strong for the wall defense of the Beast City in the northern fortress.
The wall of the northern fortress was ten meters thick, and it was a little bit hard to break through with this.
This is also the purpose of Ye Chu.
Seeing this power, the Sky Demon would definitely think that it would be able to break the city with ease, but in fact, the power is still worse.
This item is a consumable item, you have to buy it with me when you run out, or you won’t be able to use it even if you have a trebuchet.
Aman happily brought ten catapults and a hundred thunderbolts from Ye Chu. The catapult was not expensive, but this thunderbolt was very expensive.
So they didn't dare to use it indiscriminately.
"Come on, I'll give you five more!"
Ye Chu said generously.
"Because it is too complicated and cumbersome to make this thing, so you must use it well when you go back, and remember not to waste it!"
"Thank you Mr. Ye!"
Aman was overjoyed, and then prepared pear cubes.
"Wait!"
Ye Chu quickly stopped Aman.
"I'll show you something!"
With that, Ye Chu took out the Heavenly Devil Stone.
"this is……"
Aman's pupils shrank, and then walked over in shock.
When he approached and saw the magic stone in Ye Chu's hand, he immediately shouted with excitement: "The magic stone!"
"Yes, this is the Devil Stone!"
Ye Chu turned his wrist and put it away.
"How? Do you want this thing?"
"I want it!"
Aman nodded and asked.
"How to sell this thing?"
"You should also know how precious this thing is, but it is useless to me. So, if you say a price, I will see if I am satisfied. If I am satisfied, I will sell it to you by making a friend!"
Seeing that Aman fell into the silent man, he looked up at Ye Chu, and finally gave the price.
One magic stone, one thousand magic spar.