Rosho was no stranger to the name Salazar Slytherin, one of the four founders of Hogwarts.

The Slytherin House where Rosho is now located is named after Salazar Slytherin.

The founder was known for his ingenuity, but he is even more remembered for his quest for pure wizarding bloodlines—Salazar Slytherin believed that only descendants of pure-blood wizards were qualified to learn magic, and Muggles were filthy and lowly mudbloods.

Judging from the values of the current world, Salazar's views are extreme, and many people cannot accept his hatred of Muggles.

But if you go back to the era in which he lived, then it is not difficult to understand his extremism - at that time wizards were seen as ominous and calamitous, and Muggles would burn wizards alive if they caught them, so it was not for nothing that Salazar hated Muggles.

"It turns out that this book is the book of the founder of Slytherin...... "Rosho muttered to himself, "it's just that why did Barrow the Bloody help me find this book?" ”

He looked up at the mysterious bloody man Barrow, but the ghost had disappeared at the door of the library, and Mrs. Pince, who was shouting a reprimand for Hermione in the back, was about to come, and Rosho quickly hid the book under the parchment and walked out the door casually.

Leaving the library, Rosho went straight back to the Slytherin common room, where he found a quiet, secluded corner to read quietly.

He was right, the book Magic and Spells that Snape had given him was only a third of the original, and the rest was the essence.

The first half of the content is a rough introduction to the mechanism of magic and spells, and if you understand it, you can create your own spells, and you can comprehend difficult and obscure spells, but the second half of the content reveals the truth of magic, which is the purpose of this book.

According to Salazar Slytherin, there are three main elements for a wizard to master magic.

The three elements are: Force, Psychic Power, and Bloodline.

The Force is an innate ability, an innate ability that does not grow or weaken with the passage of time or the influence of external objects, and cannot be changed once it is determined.

The Force of the same species is much the same, but there are differences between different species, such as unicorns, phoenixes, dragons, or elves that are stronger than humans, which makes it easier for them to learn magic, and even be born with several types of magic.

However, cats, dogs, parrots, or centaurs have weaker Force powers than humans, which makes it difficult for them to learn magic.

Although there will be subtle differences in the Force between different humans, this difference is not large, for example, the difference between Dumbledore and Vernon Dursley's Force may be negligible.

Among the species Salazar mentioned, the Force of humans is at the forefront, but not excellent, which allows humans to learn magic smoothly, but it takes a long way to master advanced magic.

A magic wand is a tool used by humans to use the organs of species whose Force is stronger than that of humans, so as to enhance the power of magic.

The second element of a wizard's control of magic is mental power, which in this case refers specifically to a person's willpower and attention.

The more tenacious and focused a person is, the greater the magical energy he releases and the higher the success rate.

Rosho didn't even need Salazar to give an example to understand what he meant, because Doctor Strange in the Marvel Universe was a genius in magic, and his previous profession was a brilliant neurosurgeon - with excellent willpower and a high level of concentration, so he could be a genius magician.

As for the third element, it is the direct source of the wizard's ability in the popular opinion - bloodline, wizards firmly believe that they have the blood of the gods in their bodies, and the awakening of the blood of the gods is to obtain magic, which Salazar Slytherin naturally believes, but he has a new interpretation of bloodlines.

In the book, he describes that based on his research and research on wizards, he found that the descendants of pure-blood wizards were far more talented in magic than their Muggle descendants, and even surpassed their pure-blood parents, which meant that the wizarding community was constantly evolving.

If a wizard's ability is only related to bloodline, then this will not happen: pure-blood wizards are combined with Muggles, the bloodline of the next generation is tainted, the divine blood is diluted, and the ability of the offspring is reduced; However, the combination of two pure-blood wizards gave birth to crystals, at best, to ensure that the bloodline is pure and the concentration of divine blood remains unchanged, and there will never be a situation where the concentration of divine blood of the new generation is higher than that of the parents, and the ability is gained.

But that's what happened.

Based on this phenomenon, Salazar Slytherin came up with a very far-sighted idea that if pure-blood wizards in humans could guarantee their bloodline and reproduce from generation to generation, then in the distant future, the Force of pure-blood descendants might change qualitatively.

Through the reproduction of pure-blood wizards, they may be able to evolve into an entirely new species, one with a Force more powerful than humans and capable of wielding more powerful magical powers.

Reading this, Luo Xiu couldn't help but take a deep breath - he finally understood why Salazar Slytherin admired wizarding blood so much, and why he rejected Hogwarts from recruiting Muggle students, what he wanted to do was not only to protect the pure blood of wizards from being polluted, but also to prepare to lead human wizards to usher in a new era, and even create a new race.

But the plan apparently failed, and as Muggles and wizards grew on good terms, even Salazar's painstakingly run Slytherin House was no longer just for pure-blood wizards, and his plans to transform the race were in vain.

Thinking of this, Luo Xiu didn't know whether to regret or rejoice.

He let out a long sigh and read on, and after dissecting the three major elements of magic, Salazar Slytherin also revealed many other useful knowledge.

That night, Luo Xiu read it by candlelight, but he still hadn't finished reading this book "The Composition of Magic and Spells".

However, Rosho gets an unexpected takeaway from the book - how to improve Malfoy's broomstick.

After figuring out the basic composition of a wizard's spell, Rosho discovered that it was possible to enhance mana with the help of foreign objects - wands were used to amplify mana through species with stronger Force, but there was also a way to enhance mana, and that was to rely on the Ark Reactor.

The Flying Charm imposes a cycle of energy on the Broomstick, which allows the Broomstick to fly around freely, and if the powerful energy of the Ark Reactor is used to stimulate the energy cycle of the Flying Charm, the speed of the Broomstick will naturally increase.

Thinking about all this, Luo Xiu began to make it, and the next two days happened to be the weekend, and Luo Xiu went to visit Hagrid, an old friend of the cabin, who had all the tools and equipment to make the Ark reactor, and Hagrid's cabin was Luo Xiu's laboratory.

As for Rosho's visit, Hagrid naturally welcomed it warmly, and he actually wanted to invite Rosho to the cabin for tea for a long time, because he was worried that Rosho would not have a good time in Slytherin.

In Hagrid's mind, Slytherin was full of proud megalomaniacs and sinister selfishness, especially the blonde boy of the Malfoy family, who was not a good thing.

But considering Luo Xiu's ingenuity, Hagrid's worries were alleviated a lot, and now that Luo Xiu had finally arrived, he could just ask Luo Xiu how his life was.