In the underground military base of Canglong Island, a group of people are surrounding a special metal plate, and on this metal plate, it is the most important rune array on the body of the amethyst cannon. And above the formation at this time, there was a set of standard amethyst-level equipment produced by the Easy Empire.

As Lao Jiu lit up the entire formation, bursts of purple light began to cover the set of amethyst-level equipment and operate, if you sense it carefully, you can find that a stream of energy is converging towards the center of the formation.

"Bao'er, you carefully sense the changes in this set of equipment, and see what you find?" Staring at the equipment in the formation, Lao Jiu's eyes suddenly lit up, and then said to Mi Bao'er.

"Yikes! How did this set of mid-level amethyst equipment become low-level amethyst equipment? Mi Bao'er sensed it and exclaimed with a look of surprise, "Now that it has almost become the top gold equipment, what is the situation?" ”

Maybe the surrounding NPCs can't see the change of equipment at a glance, but as a player, Mi Baoer can directly identify the level of equipment through perception, and the reason why Mi Baoer is surprised is also because the equipment changes too quickly in the formation.

"Looks like that's the problem!" Lao Jiu said with great certainty.

"The problem arises here? What's the problem? Mi Baoer asked a little puzzled.

"Let me ask you, what is the most fundamental reason why our Empire is able to mass-produce amethyst equipment?" Lao Jiu glanced at Mi Bao'er and asked with a smile.

"Needless to say, this is the amethyst application technology we have mastered." Mi Bao'er looked at Lao Jiu, and as soon as she said this, she suddenly understood, "Are you saying that the formation absorbs the amethyst in the equipment, so it will cause the level of the equipment to drop?" ”

"Clever!" Lao Jiu praised Mi Bao'er, and then said, "I think there is no problem with the cannon body we built, and the problem is that we mix amethyst in order to improve the strength of the cannon body." ”

"And after the formation of the amethyst cannon is activated again, the absorption of amethyst energy can be said to be indistinguishable. When the amethyst energy in the entire cannon body is absorbed, the strength of the amethyst cannon will be greatly reduced, resulting in an explosion. ”

"You mean to say that this energy-gathering formation can even absorb the amethyst that is integrated into the equipment? In this case, how can we ensure the strength of the barrel? Isn't that really going to be an artifact for the entire barrel? Mi Baoer said a little speechlessly.

"Do you have to do experiments to know, we don't have to think about the cost first, first build a high-strength cannon barrel without amethyst, and wait until the experimental results come out, everything will be clear." Lao Jiu thought for a moment and proposed.

After having a direction, everyone will do what they say. If the entire barrel cannot be doped with amethyst, then if you want to ensure the strength of the barrel, you must use other precious ores instead, and if you want to replace the role of amethyst in the equipment, there is only colored copper ore.

As the main material of space equipment, only a little bit of high-purity colored copper is needed to create large-capacity space equipment. And if you want to build a standard Amethyst cannon barrel, then the amount of colored copper ore needed is an astronomical amount.

In order to verify Lao Jiu's idea, Mi Bao'er could only extract a large amount of colored copper ore from the empire's inventory, and then purify and process, mix the advanced alloy technology mastered by the Xiaoyao Empire, and start forging the barrel of the amethyst cannon.

After dozens of days of hard work, a cannon barrel that exuded colorful light was finally smashed out by Lao Jiu and them. After being reassembled, the Amethyst cannon was transported to the beach again for its third test.

This time, it was still Lao Jiu who took it personally, and the rest of them were waiting for the results from a distance. When Lao Jiu lit up the formation of the amethyst cannon, everyone held their breath, waiting to witness that great moment, even Lao Jiu's heart at this time was also very uneasy.

As a few breaths passed, Lao Jiu could clearly feel the energy that was rapidly gathering in the barrel, but this time there was no too dazzling purple light, which could be scattered through the barrel.

"Boom!" After about ten breaths, the energy in the barrel of the cannon finally converged to the peak, and then Lao Jiu felt a purple light shoot out of the muzzle, and then the sea in the distance exploded, and the target boat prepared by the Empire was also smashed into pieces after being shot by the purple light.

"Yay! It worked! Seeing the successful launch of the amethyst cannon, Mi Baoer was the first to jump up excitedly, and her whole little face turned red from being too excited.

"Don't be too happy, we need to test other properties next, the current cooldown is thirty seconds, I'm going to fire the second shot, you record the relevant data." Lao Jiuqiang suppressed the excitement in his heart and said calmly.

About thirty seconds later, Lao Jiu took out an amethyst again, and then activated the formation of the amethyst cannon.

"Boom!" Ten breaths later, another purple light shot out, and the sea in the distance exploded again.

"This time, the cooldown time has been increased to one minute, it seems that it is due to the heating of the barrel, write down the data, and we will continue the experiment." After Lao Jiu finished reporting to everyone, he continued to wait for the cooldown time.

After firing the third shot, the cooldown has risen to 10 minutes. Wait until the fourth cannon is fired, and the cooldown of the Amethyst cannon becomes an hour. Under Lao Jiu's patient waiting, after the fifth cannon was successfully fired, the cooldown time suddenly became one day.

It seems that the restrictions of this thing are also very large, and it can only be used at critical moments, but the main role of the amethyst cannon is to deter!

"Bao'er, how much does our Amethyst Cannon cost?" After all the data was recorded, Lao Jiu thought for a while and asked Mi Baoer.

"This can no longer be measured by gold coins, because you also know that the value of high-purity copper mining ore is not measurable by gold coins at all, and the colored copper ore needed for this cannon barrel is equivalent to the value of a super space equipment."

Mi Bao'er had a headache when she thought of the cost of the amethyst cannon, and looked at Lao Jiu and said helplessly, "With our empire's current reserves of colored copper ore, we can only make thirty amethyst cannons at most, which is enough for the imperial city." ”

"Alas, it seems that what we think is still too ideal, and there is nothing that can replace it?" Lao Jiu sighed, then said with a frown.

"This requires us to continue to explore and study, I suggest that we do not produce amethyst cannons at present, after all, this price is also unbearable for us, we can try to find alternative materials first, maybe there is no endless way."

Mi Baoer thought for a while and said, "The material of the barrel needs to be strong, we can try the black stone, with the hardness of the black stone, I think there is no problem to replace the barrel, if we can replace it with the black stone, then we can definitely mass produce the amethyst cannon." ”

"As you suggested, let's go back and continue the experiment." Lao Jiu didn't think about it, and agreed to it. The black stone in Mi Baoer's mouth is the waste left over from the purification of colored copper ore, which has repeatedly performed miraculous feats in the hands of Lao Jiu.

If you don't consider the weight of the black stone, the strength of the black stone alone is definitely comparable to any top-notch amethyst equipment.

So with the efforts of a group of people, a special black cannon barrel was created, but when the rune master wanted to carve a rune formation on it, the problem finally came. That is, no matter how hard the rune master tried, he couldn't carve a rune array on the black stone, which led to the miscarriage of the plan for the black stone cannon barrel, and everyone had no choice but to think of another way.

"Bao'er, you still want to rest for a few days, you always stay up late during this time, and now your spirit is exhausted to the extreme, and it will hurt your body a lot if you go on like this." Looking at Mi Bao'er's haggard appearance, Lao Jiu's face was full of distress.

"It's okay Brother Jiu, there are not many materials in the game, we can definitely find substitutes, there is still a warehouse that I haven't seen, I'm going to take a look, maybe there will be something else to discover." Mi Baoer looked at Lao Jiu, seriously full of stubbornness.

"You, let me tell you what's good, I'll go with you, you have to rest after you're done." Lao Jiu said helplessly.

"Well, I know, let's go, the materials stored in the warehouse, although they are all high-grade materials, are basically some not very practical, I hope there will be something to be gained there." Mi Bao'er took Lao Jiu and wanted to walk forward, but said weakly.

"What are these? Why are they all huge bones? Coming to the warehouse with Mi Bao'er, Lao Jiu looked at the huge white bones in front of him and couldn't help asking.

"These are all leg bones and arm bones on those large demonic beasts, because these bones are very hard, and there is no corresponding equipment that needs this material, so they are all piled up here." Mi Baoer said to Lao Jiu.

"I also suddenly remembered that these thick bones were hollow, so I thought about seeing if these huge bones could be used as cannon barrels. However, these giant bones are of different strengths, and we need to sift through them, as well as incorporate some other materials. ”

"yes, I didn't think of that." Hearing what Mi Bao'er said, Lao Jiu's eyes lit up, and he immediately took out a top-grade amethyst long knife and tried to cut it at a giant bone.

"Sonorous!" A piercing metal collision sounded, and Lao Jiu raised his eyes to see that there was only a white mark left on the giant bone, which made Lao Jiu's eyes immediately glow.

"Bo'er, I think this is the replacement we were looking for. You can rest now and I'll take care of the rest. When you're rested, I think we'll make a new barrel. Lao Jiu looked at the huge bone rod in front of him, and said with bright eyes.

"But I still want to ......"

"Be obedient, otherwise Brother Jiu will be angry!" Lao Jiu interrupted Mi Bao'er's words, and said with a face pretending to be angry, "You must know that your body is much more important than this amethyst cannon, don't worry, the rest will be left to your subordinates." ”