"Huh——" As expected, Guan Heng released a trace of fire spirit energy when he tapped the edge of the box with his palm, and it was immediately absorbed by the box.

"So that's it, this box only 'likes' the fire aura." Then, Guan Heng tried the four auras of water, wood, metal, and earth, and found that the box was not interested in or absorbing any of them.

"A Heng, have you tested and found out what's weird about this box?"

"Well, we basically have a preliminary understanding."

Hearing Qinghuang's question, Guan Heng replied: "The metal box can only absorb a single fire spirit, but even so, it is a very rare treasure. Let me do another test and I can deduce what it is."

What other specific effects does it have?”

"Okay, let's try it quickly." Qianxin and the others were very eager to see what use this box had, and they all said impatiently. "Don't worry, we can start right away."

With that said, Guan Heng grabbed the edge of the box and said, "Whoosh!" The next moment, he continued to output a large amount of fire spirit energy again, and the metal box seemed to be unable to stop, absorbing it crazily.

"Buzz-buzz-buzz-buzz-" In an instant, the surface color of the metal box turned red, and the temperature continued to soar. Guan Heng waved his hand and shouted: "Everyone, stay back!"

"Hey!" As soon as the words came out, all the companions did as they were told, "Chichichi!" In the blink of an eye, countless blazing flames burst out from the surface of the metal box, fanning out in one direction.

"Boom, boom, boom!" The fire energy hit the nearby rock wall one after another. Even though the rock wall structure here was extremely hard, countless black and smoking holes were nailed out in an instant. This power was extremely terrifying.

"Hahaha, I knew that since this thing can absorb fire spirit energy, it can naturally release it in one go after exceeding the limit reserve." Guan Heng said with a smile: "This should be the characteristic of the structure of the metal box itself, and it cannot be artificially manufactured.

.”

"Then, what is the use of this box?" Qian Xin was a little puzzled. Guan Heng thought for a while and said: "If it is just a box, it will naturally not be of much use, but as long as it changes its shape, it should still be able to be used.

One or two.”

"Changing its form? Easier said than done?" Ruotao said, "Sir, you forgot that you just asked Ba Huo and the others to jointly release the fire spirit energy. There was no sign of burning the box. Do you still want it to change its form?"

"Bahuo only has relatively powerful ordinary spiritual fire, but I am different from them." Guan Heng said: "Because I still have this!"

"Huh!" After saying that, he opened his palms, and a lilac flame suddenly appeared.

"This is... the soul-eating purple flame?!" Qinghuang whispered, "You haven't used it for a long time."

"You are right. Firstly, the soul-devouring purple flame itself is ferocious and violent and difficult to completely control. Secondly, it is basically useless these days. It is enough to use other types of fire aura."

Guan Heng said casually: "But if you want to melt the metal box, you have to let Ziyan try it. After all, it is said to burn everything in the world, so it is suitable to use it now."

"And the most important point is that after getting the Smart Heavenly Fire Instrument, I also tried to store the Soul-Eating Purple Flame in it, and found that it blended slightly with other fire auras, especially the center of the earth, which is responsible for neutralizing various auras.

The blue flame matches it very well, and the purple flame is not difficult to control now."

After speaking for a moment, Guan Heng said again: "What's more, I only need to mobilize a small part of the Soul-devouring Purple Flame now, so it won't be a problem at all."

"To burn a metal box, you probably need...well, 15% to 30% purple flame is enough."

"call!"

As soon as he finished saying this, Guan Heng suddenly controlled the purple flame to fall on the surface of the metal box. In full view of everyone, the soul-devouring purple flame air mass passed over the box like a ghost, "Whoosh, whoosh..." There was a light sound.

Suddenly, the purple flames instantly left a hole in the metal box.

"Successful!" Ruotao said with a smile, stroking her palms: "Young master's purple flame is really powerful!"

"Hehehe, it's just a trivial matter." Guan Heng said: "Now that it has been proven that the purple flame can melt this thing, I am about to start. Everyone, please close your eyes!"

“Whoosh whoosh whoosh whoosh whoosh whoosh whoosh whoosh whoosh whoosh whoosh whoosh whoosh whoosh whoosh”

In the lightning flash, the original purple flame sphere instantly spread out, covering the entire metal box, and then continued to melt its area. In just more than ten breaths, the metal box turned into a piece of steaming molten iron in the air, gradually rotating

Form a group.

An Yan asked: "What should we do next?"

"Hmm... let me think about it..." After thinking for a moment, Guan Heng suddenly said: "Yes, I want to use it to make a weapon. It can be installed on our airship to attack the enemy, or it can be disassembled and used alone. You guys

Say yes?"

"Okay! I am the first to agree -" Zhenwen has always been most interested in such weird inventions. She hurriedly stepped forward and asked: "Brother Guan, what does the weapon you want to make look like?"

"It's a cannon." Guan Heng said: "Since the material of the metal box can absorb the fire spirit and then release it quickly, it is more suitable to use it as a cannon-type long-range weapon. I will tell you the specific principle later. I am now

First, take out the prototype of the cannon body and look at it carefully."

"Swish, swish, swish!" In an instant, Guan Heng controlled the molten metal wrapped in purple flames, suddenly pulling it to lengthen, and then carefully turning it into a cylindrical shape that was slightly thinner at the front and thicker at the back.

"Bang!" The prototype of the cannon fell to the ground, and Guan Heng immediately used the Ice Mysterious Spiritual Energy to cool it down.

He immediately said: "Okay, that's basically what it looks like. If you want to use this thing, you have to carve a spirit-gathering array on it to continuously absorb fire energy. Its name will be called 'Spirit-Gathering Fire Cannon'."

"

"Okay, okay, that's a really good name." Zhen Wen said with a smile, stroking her hands. "Tu Gong Toad, put the prototype of the cannon body away first. I will look for opportunities to adjust and transform it later."

"Okay, Mr. Guan." The big toad agreed and did as he was told. At this moment, Guan Heng looked at the cat-faced ape and the dog-headed bear, and said: "You two, are you familiar with the path in the treasure house? If so,

If so, please take us to find other treasures quickly."

After hearing this, the orangutan scratched his head and looked at the wild bear next to him. This guy was spinning around in circles several times, constantly scratching the mane on his head, and seemed to be trying his best to recall the things around him. After all, he had been there for many years.

I didn't come in, so it's understandable that I don't remember clearly.

"Don't worry, think about it slowly." Guan Heng knew that the other party did not intend to hide it, but his memory was really blurred because of too long time, so he said: "Think carefully, as long as you can take us there, I will reward you heavily."
Chapter completed!