Alan flew down from the air, and the black smoke disappeared all over his body. However, under the shock of seeing Alan move the mountain scene just now, the wizards around him bowed respectfully to make way.

The tall and thin Kakarov couldn't curb his panic in his heart. Such a huge city floated in the air, realizing that Allen might have relied on a spell... If it falls... He asked himself that he had a close relationship with Allen, and he smirked and asked in a low voice: "Principal Harris, please forgive me for taking the liberty. I just saw your feat. This powerful force is shocking... What I want to know is... Is the floating city of Hogwarts under our feet also supported it by individuals exerting magic?"

"This is a sophisticated gravity reversal spell. By changing the direction of gravity, it uses the power of nature to achieve floating air. Otherwise, the light will be roughly offset by magic. I think no one in the world can do this. It is called Ploktif's peak movement. It allows you to cut the top of the peak, float in the air and reverse it into a floating block of soil. Its cross-section is a smooth surface suitable for construction... Of course, its difficulty will follow the influence of your spell, the hardness of the receptor

The degree increases..." Allen said, noting that Kakarov's goat curled beard trembled, and the sound of the always round sound made a little harsh due to excessive panic. So he couldn't help but smile and added, "Although both the city and the mountain need to be supported by wizard casting, the subsequent magic power is provided by a magical creation called the Mither energy core. Don't worry, my mother spent some time on the decoration of her new home, and I dared not break it..."

Hearing the exclamations and discussions from the audience, Alan's soul-absorbing thoughts received many thoughts like Kakarov's paranoia, and was more shocked. He really admitted that he turned a city into heaven by personal magic. He laughed in his heart. Under normal circumstances, the conventional floating city is not large in size, but it is just a size that has just been turned backwards. The big arcane usually expands according to development and population conditions later. However, it is more convenient for modern wizard society to build buildings. In order to achieve a more shocking effect, he chose to use multiple shadows and let Luna use the help of expanding it first and then get it to heaven.

"Magic items like brooms, motorcycles, and flying carpets are relatively small, and they don't need much magic support, but now we are discussing a school city. Whether it is invented a special spell to reduce the difficulty... Principal Harris has such great power, really..." Mrs. Maxim couldn't help but feel excited after witnessing the magic miracle and began to wonder, "Can Mither core? This can actually provide magic power to ensure that it will not fall. It is a bit beyond my imagination and cognition."

"Mrs. Maxim, I know a little, and I'm singing against...uh." Driver of "Today's Transformation" said, and found that he shouldn't slander another magazine in person. "I mean in some non-academic magazines, I remember publishing some stories about ancient magic empires... There seems to be descriptions of floating cities and this kind of artifacts... Most of them are unaware of them, including myself, and I didn't believe them before... regard them as jokes or superstitious legends of Muggles... But today, it seems that all this seems to be true..."

"Amazing memory, Lord Driver... This magic device can communicate with the original, pure magic power. It directly transmits such magic power... The lasting magic power it produces can make the entire mountain float in the air." Allen said as he deliberately looked at the wizard merchants, "It directly transmits such magic power to the entire territory of the floating city. The wizards will easily cast magical spells of the constant magic type without spending a lot of effort to create magical items. If they make magical magical objects that are only used within the Hogwarts range, it can even create such quasi-magic items without even having to find high-quality alchemy materials or consume much of their own magic power..."

The businessmen in the stands smelled business opportunities. They were originally enough to bring them more benefits after urbanization and floating, but now their expressions have become a little fanatical after hearing this - even if foreigners who actually don't have stores in Hogwarts have started to think about it.

Alan turned his staff upside down and the crystal ball below faced upwards. This time he did not use the pipe to directly cast an illusion - a perfect spherical magic device fixed by a gorgeous pedestal in the air. It looked like a crystal ball on Alan's staff, but compared to the surrounding references, it was a diameter of 150 feet. The sphere was emitting a very bright edge with a ray of blue light, as dazzling as looking directly at the sun, and some dark shadows were wandering on the surface.

"This is the Mither Energy Nuclear. It is currently being placed at the top of the Temple of Ravenclaw... It is open to everyone, you can visit it at will." Allen pointed to the approximate direction of the temple south of the Black Lake. He did not explain the fact that this one had an impact of only one mile. In fact, this one placed on the Temple of Ravenclaw is to attract the attention of these people on the surface, and also increase the influence of some temples on the belief of wizards.

"Principal Harris, do you want to say that this kind of energy... As long as you stay in the floating city, can everyone have permission to use it? He won't have the power limit problem?" Gusdrian Tutley asked a little unwilling question. He looked at the energy core with jealousy, and he became even more jealous of Hogwarts.

"Don't worry about power issues. This energy core is not generating energy. It is just a porter of magic energy... These little things are not considered a consumption at all..." Allen raised his hand without a staff and said proudly in his tone. "In the future, we Hogwarts people can not only create traditional magic items more casually, but also use some materials that originally did not have good metal refining to make items with permanent magic effects. As long as these props stay within the influence of Hogwarts... within our school city, we do not need to spend a lot of money to create any magic greenhouses, so that we can easily change the climate of a constant area to become a climate suitable for the ones we want to cultivate magic plants..."

The merchants with manufacturing workshops in the audience no longer focus on the words Ellen introduced later. They estimated that when these magical items and quasi-magic items appeared, their sales would be wide open, and even Hogwarts would immediately face the problem of overproduction. If they were really so easy to make, the price of magical items would plummet, and the cost of traditional magic products - that is, the use of more expensive materials and casting more complex magic constant techniques should also decline. After all, it at least helped save a lot of artificial energy... Only those who left the influence of the core of Mithera need such traditional items.

"President Harris, this Mither nuclear energy is so powerful. Is it easy to manufacture? Will you announce the functions and production methods of this Mither nuclear energy to popularize all wizards?" Driver's old voice was full of excitement. Although he was just like an old scholar more often, as an academic wizard, he fully understood the meaning behind this nuclear energy, so his hand holding the parchment was still trembling.

"I'm sorry Mr. Driver, I think everyone can understand the meaning behind this. This is the Harris's trade secret and its importance to Hogwarts..." Allen smiled and confessed his own self-interest considerations.

Driver nodded with regret and understanding. He did not try to persuade the other party to disclose this knowledge like he had tried to persuade the other party to disclose the magic of Animagus. He knew that the meaning of this strange thing was different from the impact of what animal he transformed into.

"But I am also a Ravenclaw, so out of respect for Ms. Ravenclaw's pursuit of knowledge, I put it in the temple of the Lord of Knowledge, leaving this way of learning for all those who intend to study it... But I have to remind everyone that although Miser can core, its material is very expensive regardless of its efficacy... but it is very dangerous to have anyone come into close contact with it." Alan deliberately made his tone become a little more pious to his old appearance. He looked at the expressions of the wizards with greed and jealous faces, resisted the urge to laugh, and solemnly reminded, "In fact, if you are not careful or for some other purpose... the living creature touches this one directly.
Chapter completed!