The professors and mercenaries of the academy were touched, and they thought of their wives and children, and did not disturb their reunion.

But the principal was puzzled! If you look closely, this body is obviously Zifeng's, her cultivation is higher, and her physical body is a hundred times stronger than that of ordinary sword saints, but her behavior, especially her eyes, how can you look at Ziyue?

He stared at and studied for a long time, and Ziyue, who was looking at it, felt furious in his heart, and couldn't help but interpolate fiercely: "What are you looking at? Haven't you ever seen a beautiful woman?"

The headmaster touched his nose and asked something that made Ziyue even more weak-hearted: "Are you Zifeng Most or Ziyue Most?"

As soon as these words came out, even the college professors who were not confused were confused.

But the principal finally figured it out, and added with a smile: "It's really wonderful to have two souls in one, the souls can be used interchangeably, but, how did you change it? I don't think your sister Zifeng will be willing!!"

Ziyue can't say whether she is dead or alive, can you imagine how you just forcibly broke a girl, and after the orgasm, you became that girl? It's really self-inflicted! It's yourself who hurts people, and it's yourself who hurts, and after the incident, Ziyue almost collapsed.

Because of the change of body, her soul is stimulated by the new body, the idea of both men and women eating is gone, and the mind changes to normal girls, chagrin, self-blame, shame, fear, and so on plague her, and she can't think of a second solution except to escape.

Zhao Zifeng was excited, the magic guide cannon, the magic guide cannon, while flying, he couldn't help but start thinking about the design plan, first of all, what to use to make the cannon body? The material must meet the high temperature resistance, sturdiness, and good magic conductivity.

Originally, the extraterrestrial meteorite was a good material, but it was impossible to carve a magic cannon like the carving artifact mother ding, there was no such a big meteorite, and although the extraterrestrial meteorite was fire-resistant, the texture was relatively fragile, and it should not be able to withstand the vibration when launched.

Materials are a problem, but they are not difficult to solve, and it is not a difficult problem to solve by mixing pure gold and extraterrestrial meteorite powder, or casting with pure gold and magic crystals.

Then the material is not a problem, and then there is the launch power, if you use magic crystal liquid as a cannonball, the launch power cannot be gas propulsion, is there any magic that can accelerate an object to supersonic speed in a very short time???

It's something Ritter is good at, and it's left to him to solve.

The third question is, how to control the cannonball after it is fired, and then it does not explode until it hits the target? This involves the question of how long it takes for the magic crystal to explode when it comes into contact with the air, and I remember that the magic crystal does not explode immediately after it comes into contact with the air.

It seems that it is about a second, a second, and the tentative range of the magic guide cannon is one thousand meters, and it should be possible to fly one thousand meters per second, but the magic crystal liquid flies at such a fast flight speed, rubbing against the air, maybe it will not reach the explosion limit in a thousand meters, and this needs to be realized.

It's okay to succeed, but how to solve it if it fails?Is it protected by magic, how is it protected???

Is there any other way to condense a ball of highly compressed energy, and after hitting it, it will explode only after a violent impact? Zhao Zifeng thought of nine drops of innate true yuan, that is, extremely condensed energy, a flash of spiritual light, Zhao Zifeng thought of a substitute for the cannonball, as long as it can be made into a real yàn, then the only remaining problem is the power problem.

I have solved so many problems, old man Lit, if you can't solve the power problem, I will pick your skin, Zhao Zifeng thought happily.

Time passed in thought, and finally the Warcraft Forest arrived, Zhao Zifeng stopped thinking and concentrated on driving the Artifact Mother Ding to find the school, so as not to accidentally fly over.

Zhao Zifeng left the academy the day before yesterday, and summoned the artifact mother tripod away yesterday, and the professors in the school were all worried, thinking that they had been attacked by angels, and they hurriedly used the magic eagle to send a message to the fire dragon pass, and it was estimated that it had not yet arrived, and today more than a dozen professors guarding the door suddenly found that Zhao Zifeng had returned safely.

The professors thought that Zhao Zifeng had escaped safely, and they all smiled happily, and asked what was going on? Zhao Zifeng didn't know what was going on, and told the facts, and the professors' faces immediately darkened, and they almost pointed at Zhao Zifeng's nose and scolded the little rabbit cub, asking him why he was in trouble!

Zhao Zifeng saw that the situation was not right, and rushed to the artifact casting field with a red light from the artifact mother.

This time the situation was similar to the last time, two foundry professors were refining, three foundry professors were resting, Professor Coster was sitting and meditating, Professor Yasir was rubbing his eyes and yawning, and Professor Ritter was lying on the table and sleeping.

Zhao Zifeng controlled the artifact mother tripod to fall, and laughed: "I'm back, there is good news to announce!"

The two professors who were forging artifacts were stunned for a moment, and muttered, "Not dead yet, it is indeed good news!" The expression on their faces finally relaxed a little.

Professor Yasir, who was napping, suddenly opened his eyes and saw him with a look of surprise, "It's indeed good news!"

Coaster was still sitting, Ritter sat up suddenly, wiped his saliva, and saw that Zhao Zifeng was still alive, and he cried and pounced, "You didn't die!!!!"

Then he flew out and almost fell half to death, Zhao Zifeng rewarded him, "I am such a delicate daughter, do you want to hug me too, don't you want to live!!"

Ritter, who was half dead, finally came to his senses, and laughed, "I didn't mean to! It's not like you summoned the artifact mother tripod away, we thought something happened to you, worry! Why are you back again?"

"Good news!" As soon as he thought of the magic guide cannon, Zhao Zifeng was extremely excited: "I went to the Two Realms Pass, because the battle in the Two Realms Pass is very strong, but I can't afford to fight a war of attrition, so the front-line soldiers put forward the idea of a war artifact, so I have a magic guide cannon idea, magic guide cannon, magic guide cannon!"

Zhao Zifeng's saliva was whirring, the five foundry professors were stunned for the first time to see him so excited, and in the end, it was Ritter who reacted the fastest, pulled the table over with a hula, spread the parchment, picked up a quill, dipped it in ink, and asked, "What is the style of the magic guide cannon?"

Zhao Zifeng pulled over a chair, sat down on the edge of the table, and said the shape of the magic guide cannon in his heart, gushing about his design ideas, putting forward problems that he could not solve, and explaining some solutions that needed to be verified.

Ritter's eyes sparkled, and he casually solved the problem of power - using the Wind Forbidden Spell Windless Gap Magic Array, he could ensure that the cannonballs fired had an initial velocity of kilometers per second.

As for the uncertain questions that need to be verified, they have not been verified, and Ritter has already given the answer, the magic crystal will explode when it is strongly impacted, and the magic crystal will explode when it is burned at high temperature, both of which destroy the stability of the magic crystal, of course, the nature of high-temperature smelting is different.

Finally, the design of the medium-caliber magic cannon jumped on the paper, the cannon body was cast with pure gold and wind magic crystals, one meter and a half long, the outer square and the inner circle, the square cannon side was thirty centimeters long, the diameter of the cannon chamber was ten centimeters, the two ends were open, the internal Mithril outlined the windless gap magic array, and the smelted fire magic crystal was cast into a ten centimeter diameter magic ball as a cannonball.

And cast rectangular box-shaped turret to install the gun body, the straight magazine is set in the parallel position of the barrel, the closed U-row chute connects the magazine and the gun chamber, and the breech is loaded.

The box-shaped turret uses Mithril to outline the power magic array, and the wind crystal is used as energy to transmit the magic power to the windless chasm magic array. Ensure that the magic array can run continuously, fire continuously, and the full name is the medium-caliber flat-angle direct-fire automatic live-fire magic cannon.

It has to be said that the casting level of the foundry professors has greatly improved, they have avoided the problem of difficulty in activating after the magic crystal powder is filled, and used Mithril as the filling of the magic array, which greatly reduces the difficulty of casting.

They have gradually abandoned the previous casting ideas, in fact, the change of this step is still because the first fusion of magic crystals, the energy reaches the artifact level, and there is no need to activate the magic crystal to continue to increase the artifact energy level.

Because the frontline is tight, this is only a preliminary design, and there is another high-power energy projectile Ultimate Magic Cannon, which has only made a preliminary idea, because it is too difficult to cast, so it is temporarily stranded.

The design of the medium-caliber magic cannon is simple, but the difficulty of casting is also quite large, the internal Mithril Gulle magic array, when casting, the barrel is too hot and too small, and the arm cannot be extended into the operation at all, the design needs to refine a small carving knife, use the fighting spirit to manipulate the magic formation to carve out the magic array, and then pour the Mithril filling after cooling, making the impossible possible, but the difficulty is dozens of times higher than that of hand-carving on the sword body.

It didn't take much time to design, and at three o'clock in the afternoon, the design sketch had already come out, but by the time the medium-caliber automatic flat-angle live-fire magic cannon was cast, it was already three o'clock in the afternoon of the next day. The magic cannon had almost used up the Academy's casting materials.

The Ultimate Magic Cannon Project is going to run aground after all, and even the artifact casting has to be stopped.

The barrel of the outer square and the inner circle was snapped into the turret, the energy transmission line was sintered, and the wind system magic crystal was embedded in the power magic array, and the magazine was filled with beautiful red magic ball shells.