Felix sent Justin away and returned to the office.

He had never thought that he would know people like the Weasley twins. They simply used all their enthusiasm for pranks and funny things. No wonder Professor McGonagall looked depressed when she mentioned the twins when they joined the company.

'I wonder how the beggar version of the magic mobile phone they are researching is going?'

Felix thought to himself. In fact, although there is a trend of rejecting technological items in the magic world as a whole, their shadows can still be seen faintly.

For example, the Hogwarts Express, the Knight Bus, the magic radio... These are things recognized by the Ministry of Magic and can be used legally, but they need to be reasonably regulated.

The Ministry of Magic has a special department - the Department of Misuse of Muggle Artifacts, which is responsible for handling related matters.

The word "abuse" is already very descriptive.

Most of the violators are those who modify Muggle items and then return them to ordinary people, causing various magical accidents.

For Felix, if he wanted to modify the existing mobile phone, it was not difficult - the simplest way was to add magic words on it to block the influence of Hogwarts on it, just like he did with the small movie projector. But what's

the use of this? What

he expected was to see more possibilities and more benign development and changes in the magic world, rather than to convince wizards to have a mobile phone in their hands.

If he had expectations for the twins, it was indeed an indisputable fact.

These scattered thoughts flashed through his mind one by one and soon subsided.

Felix waved his wand, locked the doors and windows, and used magic to cast a thief-sensing spell - when someone entered the range of the spell, the caster would get the news.

He took out the crown from the ring. After being repaired by Ms. Ravenclaw, it was no longer a tattered and rusty shape, but a glittering crown inlaid with gems.

The crown is in the shape of an eagle, with a sky sapphire inlaid on the chest, and two spread wings symmetrically decorated with rows of carefully embellished pearls.

Felix put on the crown.

'Nothing has changed...'

After two minutes of quiet experience, Felix made a note on a piece of parchment -

there was no obvious change when wearing it;

then, Felix picked up a stack of parchment, which was the information he got from Lockhart, but the "secret inheritance" he mentioned was actually a "surprise" left by Ms. Ravenclaw for her college students.

Felix forced himself to temporarily forget the existence of the crown and carefully studied the magic on it - he had memorized this information long ago, and even barely mastered the ancient magic on it.

This time, he felt different.

His mind was more active, like countless fine bubbles on the surface of boiling water, and it became easier for him to retrieve existing knowledge.

Digesting new knowledge is actually a process of continuous internalization - connecting something that was originally unfamiliar with one's own original cognitive system.

And this process requires constantly mobilizing existing knowledge and using the known to understand the unknown.

The crown obviously accelerated this process.

When he thought about memory magic, the relevant memory was obviously activated, in an extremely active state, as if shouting at him: I can get in touch with it, look at me!

Felix recorded on the parchment -

the same type of knowledge is more easily mobilized when wearing it;

after thinking for a while, he added, 'It is greatly affected by its own knowledge reserves and cannot directly provide knowledge. '

In order to verify this conclusion, Felix picked up from his collection of books and found a book "A New Theory of the Political Attributes of Power". This book was also one of the alternative Christmas gifts for Professor Snape at the time. The reason why he chose it was that the handwriting on it was small and dense, and the content was so boring that it could make people bald.

He patiently read more than a dozen pages and felt his stomach churning.

He wrote a line on the parchment -

it is almost useless for completely unfamiliar fields and knowledge blind spots.

Afterwards, he did seven or eight tests in succession and kept recording on the parchment.

The sky darkened unknowingly.

Felix looked at the items recorded on the parchment and compared them with the Mind Cabin, Mind Acceleration, and Bafe Brain Awakening Potion in his mind.

Among the three, the accelerated thinking focuses on improving reaction ability, which is actually a duel magic;

the other two, the thinking hut, speeds up the operation of thinking and creates the illusion of lengthening time. In other words, it is to complete the conclusion you draw in three hours of thinking in reality in one hour;

and it is not connected to reality. After all, people cannot improve their practical ability through "thinking".

As for the Bafe Brain Awakening Potion, it is not so demanding. It can significantly enhance brain power. Since it is a magic potion used in reality, it is effective in reciting knowledge and practicing magic, but it actually focuses more on the memory of knowledge. Many young wizards look forward to using it to cram before the exam.

"Sure enough, the crown is more useful." The advantage of being able to activate specific knowledge areas and accelerate the absorption of new knowledge of the same type is enough to attract people.

Moreover, from the beginning of the research to now, about six or seven hours have passed, and Felix has no other sequelae except being a little hungry.

To be cautious, Felix took out the "psychological measurement table" that had not been used for a long time, revised it, and prepared to record it for a month first.

He was not worried that Ms. Ravenclaw would harm people, but was afraid of some unknown influence.

Felix took off the crown and looked at it quietly: "Except that the shape is a bit feminine, there are no other obvious shortcomings."

"In fact, if you look closely, it's just a little slender and dexterous, which is not necessarily exclusive to women. Ms. Ravenclaw is very majestic..."

After ten o'clock in the evening, Felix was ready to rest, but a copper Knut in his pocket suddenly became hot.

"Finally I've been waiting for it."

Felix clenched the hot Knut - it matched the one he gave to Dobby, and he injected magic into the coin to respond.

Then he waited quietly, and after about a minute -

a house elf wearing an old pillowcase suddenly appeared in the office, and the office immediately made a "woooo" whistle, and Felix extinguished the sound with his hand.

This was the effect of the defensive spell he had casually set up before studying the crown.

The elf Dobby was a little surprised, but he didn't ask any more questions. He greeted respectfully: "Dobby says hello to Mr. Hep. It's a pleasure to see you again."

"Me too, Dobby." Felix said, "I've been waiting for you for a long time."