That night, Luo Xiu held the magic book and read it late at night, and by learning the accelerated buff, he quickly mastered some low-level fire-based magic.

But without a wand, Luo Xiu didn't dare to experiment easily - casting without a wand was inaccurate and uncontrollable, and if the fire magic got out of control, it would be Hagrid's cabin that would suffer.

Fortunately, the wand made by Luo Xiu was completely formed on the morning of the third day, the wood wax oil on the wand was completely absorbed, and the glue was solidified.

Although Luo Xiu's wand is somewhat rough compared to the master's work, as a wand, it has been able to perform its mission excellently.

Rosho happily took his wand off the windowsill, and Hagrid danced excitedly.

"Give it a try, repair, try if this little guy is good!"

Luo Xiu held the fifteen-inch extra-long staff in his hand and began to cast his own spell.

The first attempt, he was given the light magic he was best at.

"Divine Light Protector!"

Suddenly, a dazzling light shone on the cabin, and Tooth Tooth barked loudly in fright.

"Wang! Barking! ”

Hagrid couldn't open his eyes at all, so he didn't turn his head to cover his face, but he still peeked desperately through his fingernails and asked, "Hey, Xiu, what kind of spell are you doing?" Why have I never seen anyone do it? ”

Luo Xiu looked at the brilliant light that shot out from the tip of his wand, and put away his wand with satisfaction, he smiled and said, "This is a powerful light magic, and I relied on it to resist the attack of the black cloak in the Forbidden Forest. ”

"Was it a spell you created? I've heard that gifted students create their own spells. Hagrid asked.

"In some ways, let's just say that." Luo Xiu smiled and nodded.

"Then you're a very talented boy." Hagrid said appreciatively.

"Don't rush to say that, because there's a good chance I'm going to burn down this house." Luo Xiu said with a smile, and then used the second spell.

"The flames are blazing!"

This is the spell that Luo Xiu learned from the book borrowed by Malfoy, and it is also the basic spell in fire magic, once Luo Xiu mastered the "Flame Blazing", then the fire source for forging the Ark Reactor will be there.

After the spell blurted out, I saw the light at the tip of Luo Xiu's wand flickering, and a bright flame flashed out, and continued to burn at the end of the wand!

"Great! I did it! Luo Xiu said excitedly.

Hagrid was also quite surprised: "You are a very good learner! ”

After summoning the flames, Luo Xiu tried to adjust the temperature and intensity of the flames, although it was still difficult for him to control all this, but presumably soon he would be able to use the flames to smelt the materials he needed.

"What a good wand."

After a few attempts, Luo Xiu excitedly stroked the wand he had forged with his own hands.

In the next few days, Luo Xiu began to explore the thunder magic while refining his fire magic.

Rosho asked Malfoy to borrow some textbooks on lightning magic from the library, so that the power supply problem in the process of preparing the Ark Reactor could be solved.

However, lightning magic is more difficult to control than fire magic, and the current provided is extremely unstable. Luo Xiu studied for a whole week, and only mastered one of the simple spells, "lightning and thunder".

Casting this spell, the power provided was sufficient, but it was unstable and fleeting, and Luo Xiu had to prepare a battery to convert the power provided by the magic into a steady current output for use in the experiment.

But preparing a battery is not easy.

Late at night.

Rothew, who was nestled on the sofa, took out his notebook again.

The above plan has been implemented step by step, and several important tasks have been completed.

For example - the casting of a wand.

For example - the problem of the ignition source and the problem of part of the power supply.

But old problems are solved, and new ones follow.

From the problem of power supply, a new difficulty arises - how to provide stable current?

Luo Xiu found that the electricity provided by the lightning magic was extremely unstable, and although the energy was very large, it was emitted instantaneously and could not be used continuously.

Moreover, the higher the level of lightning magic, the more obvious this characteristic is, so it is impossible to solve this problem from a magical point of view.

Then the only way is to prepare the battery.

But in this way, new problems have arisen.

Many chemical materials are required to prepare batteries, such as lead, tempered alloys, concentrated sulfuric acid, rubber, etc......

Rosho didn't expect Hagrid to help him find them, in fact finding them at Hogwarts was almost a fantasy.

The question goes back to square one at the end, with the question mark pointing to the original big puzzle on the notebook – the material.

Materials are needed not only for batteries, but also for the Ark reactor.

The battery requires lead, tempered alloys, concentrated sulfuric acid and rubber, while the Ark reactor requires a large number of rare metals and special alloys.

Without solving this problem, Rosho would never have built the Ark Reactor at Hogwarts.

But after thinking about it, Luo Xiu never had a clue.

Transfiguration can only change the appearance of an object, but not its essence, and this change is temporary and not lasting.

In terms of the current level of science and technology, the purchase of palladium and uranium needed to make the Ark reactor requires a lot of money, and it is even very likely that there is no market.

The more Luo Xiu thought about it, the more depressed he became, he simply closed the notebook, he took a deep breath, picked up a magic book on the coffee table and continued to read.

The title of the spellbook is "Introduction to Earth Magic".

Flipping through it, Luo Xiu saw the name of one of the chapters - "Turning Stone into Gold: Alchemy That Everyone Can Master".

"Huh?"

The title of this chapter deeply attracted Luo Xiu, and he immediately held the scroll and read it.

If there really is a point of gold in earth-based magic, then it is clear that this is changing the structure of matter at the atomic level.

As he continued reading, Luo Xiu gradually came to know the magical earth magic.

Experiences pop up in my head.

[Magic-Earth-based Magic-XP +1]

[Magic-Earth-based Magic-XP +1]

[Magic-Earth-based Magic-XP +1]

……

With the revelation of the mechanism of the "Turning Stones into Gold" spell, Luo Xiu began to discover that earth-based magic did have the ability to essentially change matter.

Unlike "Transfiguration", which only temporarily changes the appearance of matter, but does not change the essence of matter, "turning stones into gold" directly disrupts rocks at the atomic level and reforms them into metal elements!

"Since you can turn stones into gold, you can also turn them into palladium and uranium......

The more Luo Xiu watched, the more excited he became, and his heartbeat became faster and faster.

"It seems that the key to solving the problem lies in earth magic!"

"I love earth magic!"