What did he see?A system that is out of the external energy supply and still generates electricity on its own?

The ability to associate the mystery moon is a demonic type, and the answer is simply out, and she has given a new feature to the metal frame, using magic to provide a source of energy.

“How did you do it?”Roland was surprised.

"You say that electricity and magnetism are related to each other and are an inseparable whole, and I can't help but think that since their ability to make objects magnetic, can they also make it produce lightning?"You say that creating lightning requires a magnetic change, so I tried to attach the repeatedly changing magnetic force to the copper wire, and it turned out to be like this...” Mystery Moon answered carefully, eyes full of expectation.

Prince thought that the current does produce a magnetic field, but the magnetic field does not produce an electric current unconditionally, the latter must act on the closed coil, and there is a change in magnetic flux - whether it is to change the magnetic area, or to change the size of the magnetic force, it needs external energy to achieve.

The new power of the mysterious moon replaced this part, so that the magnetic force changed on its own without external interference, if put to the previous, Roland would have thought that this is a permanent model, but now he understands that the witch's ability can not be measured by common sense - the magnetism of the demon does not necessarily come from the magnetic pole, just as the black fire is not fire.

This is all a magical effect.

The only thing he was curious about was that he had never noticed a change in the magnetic force of the demon-possessed object before the mystery month?

When Roland asked the question out, she first nodded, but quickly shook her head again, "In the joint help meeting, I also thought that the magnetism of the object can be changed at will, and when not used, the magnetic force can be reduced, so as not to cause trouble to other sisters, but it seems to be useless, the object magnetism is always maintained at a fixed size, I thought this idea is impossible to achieve, I did not try again."

Roland asked the Nightingingeon, “Her magic form...”

"It's condensed," said the Nightingale, emerging from the mist, smiling, "like a surging blue wave."

The sound of the mysterious moon suddenly excited, “Am I really—”

“Yes, your abilities have evolved,” Roland affirmed, “without long hours of unremitting practice, it’s impossible to understand the key to promotion so quickly, and you’re doing great.”From this day forward, you are the sixth sorceress of the League of Witches."

“Congratulations,” the Nightinge smiled and patted her head.

“Can I do more for my Highness now?”The eyes of the mysterious moon shone.

"Well, innumerable," Roland said, "your potential is limitless, as I said before.But rest for a while, your dark circles are almost as big as your fist.Wait until the afternoon, and then let me test your abilities."

“Hmm!”She nodded her head.

After the mystery moon left the office, the nightinge immediately closed the door and came up.She did not return to the table or to the floor-to-ceiling window as usual, but a flash closer to Roland, holding his shoulders excitedly, bending down his waist - the pale golden hair hanging on his cheek, making him feel slightly itchy.Looking at each other's watery eyes and soft red lips, Roland's heart beat several times.

诶?What a situation!Does she want to be here with herself... but it’s still daytime.

"Tell me the way."The Nightinginger's words make the prince pause, etc... the story seems to develop very different from what he thinks?

“What way?”

"You can't even understand the method of evolution without understanding the theoretical basis of natural science," she said excitedly, "with the test results of the mysterious month, it is impossible to understand the contents of this book, but you still let her evolve new abilities!"What should I do?Do you also need to practice with small toys?

Well, it was for evolution, this request is really regrettable - no, let's take a breath, Roland cleared his throat, closed his mind, "your ability to rely on the method of epiphany is very difficult to break through."

“Why?”

“According to Agra, it is necessary to witness and ability-related phenomena in reality in order to cause evolution, and your fog is so incredible, I do not know its specific principles, let alone guide you to know it,” Roland explained. "If you want to condense magic, I am afraid that in the end there is only one way to go, that is, all the knowledge of nature and physics, and advanced mathematics is also a must-knowing skill."

The expression of the nightingale fell at once, and she walked feebly to the chaise longue, leaning softly on the back of the chair, as if she had been hollowed out.

After lunch, Roland took half a day to take a thorough test of the new abilities of the enigmatic month.

He named this ability "indeterminate magnetic force", which, like the previous magnetism, can attach to any object and follow the magic of demon-possession injection to produce periodic changes, but for insulators, there is almost no electrical effect.

In addition, her magic is also the lowest of the evolutionary witches, only can light up the two magic stones printed on the god, more than Maisie half.The demon-possession ability is very high in the magic, the greater the upper limit of the magnetic force change, the longer the duration, the more amazing the magic required.After a series of measurements, he found that the new ability of the mysterious moon is still stable as a battery, and it is far from enough to drive a large motor and reach the power of the active steam engine - the use of the original electrolysis of the water when the DC motor is converted into an electric motor to test, and the results are quite bad.The mysterious moon consumes all the magic magic motor rotors, which can only maintain half a day of operation time, which almost negates its practical value as a source power.

However, Roland did not disclose these to the mystery month, but encouraged her to continue to practice new skills, and do not fall behind her studies - for her, evolution is not easy, any bad news may make her sluggish.

Fortunately, the evolution of ability is not a hammer sale, as long as the mystery month can once again achieve a breakthrough through systematic learning, the lack of magic still has a chance to make up.

In addition, Roland also thought of what Egtha said that many people work together to make light-emitting stones - if there is a witch who can control or transfer magic, it can also bypass the limit of the lack of power of the mystery moon itself.

In the evening, he found Tili Wimbledon.

“Auxiliary Witch of Magical Control Type?”After listening to the prince's account, she mused for a moment, "No one on the sleeping island has this ability."

“Is that... that?”Roland couldn't help but sigh, it seems that the mystery moon can only rely on his own efforts to improve.

But Tilie's next words changed his mind, "But I know where you can find such a witch."

(Unfinished).