A certain Hogwarts professor of runes

Back home, Felix went to the work station and began modifying the tooth:

First, drill a hole at the bottom of the tooth to make a small opening;

Secondly, smooth out the small hole;

Next, place it under a microscope and use a carving knife purchased from a micro-carving merchant to carve out neat ancient magic characters that nest together to form loops.

This is a delicate task—constructing magical runes within an extremely small space. Very few in the entire magical world can achieve this. Felix, however, with his professional engraving tools and the latest generation microscope purchased at great expense, reduced the difficulty of the entire magical process by two-thirds.

This is one of the results of his theory—the combination of Muggle wisdom and magic.

The so-called Muggle wisdom is not just about their ingenious ideas; the tools they use to study and transform the world are equally fascinating.

In the wizarding world, very few people can do this.

Leaving aside pure-blood wizards, some of them despise Muggles, while others at most don't reject them;

Wizards of mixed race, or those from Muggle families, may be more familiar with the Muggle world, but during the crucial period between the ages of 11 and 18, their energy is primarily focused on magic. Once they reach adulthood, their thought patterns are already fixed, making it impossible to deeply combine the strengths of both approaches.

……

It wasn't until the afternoon of the following day that Felix finally completed the construction of the twelve sets of rune circuits. Each circuit contained anywhere from three to five ancient runes to more than ten. With the last ancient rune completed, he carefully connected the twelve circuits, forming a unified whole.

One by one, the magical circuits were lit up, and the radiance of magic bloomed in the narrow, cramped space!

As the last loop lights up, all twelve loops finally close completely, forming a continuously evolving whole, transforming into a bright and unified mysterious pattern.

The small hole inside the tooth began to expand without leaving a trace, quickly becoming the size of a suitcase. And this expansion did not end. Felix waited quietly, savoring the results of the day and night, a satisfied smile on his face.

Finally, the internal space of the tooth expanded to almost half the size of a room. Then, the Concealment Circuit began to function, rapidly reducing the surging magical fluctuations until they were almost imperceptible; the Stabilization Circuit began to solidify the entire rune structure, and the Fortification Circuit made the tooth, the carrier, extremely strong and resistant to wear...

The most crucial part is the activation loop, which will only be activated according to the conditions he sets.

Felix smiled with satisfaction. The third cave was complete!

He took out his briefcase and transferred the things he had prepared beforehand into the tooth hole. Felix considered it a "portable storage room for spare supplies." Inside, there were not only seven or eight wands (obtained from the dark wizard), but also various magical potions, flying brooms, tents, and other items.

Having done all this, Felix put the teeth back into his mouth and fixed them with magic.

He smacked his lips, nothing seemed amiss, and then licked the wisdom tooth deep inside his mouth with his tongue. Hmm, it wasn't much different from a real tooth. Dr. Granger's technique was really good!

Felix sat quietly at his desk, his gaze calm and lingering.

Most of his belongings, the most commonly used and unimportant ones, were in his briefcase;

The important items, which served as his backup supplies, were divided into three parts, a strategy known as "a cunning rabbit has three burrows."

First Cave: A gemstone ring on his left hand contains some of his precious materials, potions, books, and some of his research results, and is engraved with hidden magic runes;

The advantage is that it is portable and convenient for daily use;

However, the downside is that if it is used too often, it will inevitably be noticed by others and it will be difficult to escape the sight of a master wizard.

Felix positioned it as an everyday item, and something to be displayed in the open to attract attention.

In the second cave, the rune loop on the right wrist only stored one spare wand;

Its greatest advantage is its extreme concealment, making it almost impossible to detect by conventional means;

Felix sees it as a powerful tool for turning the tide in desperate situations!

The third cave, "Felix's Wisdom Tooth," stores a large amount of conventional and strategic supplies.

Its advantage is also its extreme concealment;

Felix's role for him was to provide him with ample supplies when he faced a major crisis and had to go into hiding.

"That should be enough to make it safe."

Felix believed that people with such a strong sense of crisis were extremely rare in the wizarding world. Perhaps some experienced Aurors had the same mindset, but their methods were definitely not as good as his.

In particular, he was proficient in the technique of brain oppression, and conventional torture could not make him reveal his secrets!

Of course, this is the worst-case scenario, and Felix doesn't think he'll end up in that situation. But things are unpredictable, so it's always good to be prepared.

In the coming years, a shadow called "Voldemort" will loom over the British wizarding world.

Felix never dared to underestimate him. Perhaps this second-generation Dark Lord had intellectual problems, but he was definitely a magical genius, and he had spent far more time studying magic than Felix himself, not to mention that his research topic was the unorthodox and evil "killing and death".

With less than a week until the start of the new semester, Felix was ready to relax; he had been exhausted lately!

He could watch movies, attend concerts, and enjoy delicious food—after all, he still had £100,000 in his account! He'd be spending most of his time in the magical world, and he couldn't convert all of that money into Galleons anyway; keeping it would be a waste!

Felix spent a lot of pounds on a range of Muggle gadgets as entertainment in his spare time.

In particular, he spent eight thousand pounds on a small projection system, the kind used in cinemas, along with copies of classic films available on the market. As for the rule that Muggle items cannot be used at Hogwarts?

Is this a problem for him?

Similarly, music is also essential. Felix considers himself a typical Slytherin and enjoys it as much as possible.

With the start of the school year approaching, Felix tidied up his room, packing all his magical items into his suitcase—if a thief came and took one or two magical items, it would be a considerable problem.

"Is there anything else that needs to be prepared?"

Felix thought for a while, then suddenly slapped his clever little head, "That's it, books!"

He recalled the principal's hint during the interview, so he first bought several pairs of wool socks in different colors, and then began a shopping spree at various bookstores.

He had both items for himself and Christmas gifts he had chosen for the professors, preparing them regardless of their usefulness.

Felix was preparing to give his former dean a copy of "A Guide to Common Experiments for Middle School Students," the kind with lots of illustrations.

I hope he'll like it.

I'm sure he'll like it, after all, I'm his best student!

Felix was becoming increasingly excited about starting his job.