The process required to refine the elixir was quite complicated for a beginner, but fortunately, Li Quan was well prepared and had alchemy experience to refer to, so the refining was very smooth.

I saw that he successively processed all kinds of strange materials, and then successively put them into a black crucible filled with boiling water, bubbling with boiling water, and the fire under the crucible was constantly heating. While doing it in his hands, he still muttered in his mouth: "The cosmos rhizome after the winter solstice, after drying, grind it into powder, and put it in the ......."

"Fresh seeds of figs, also ground into powder, put in ......"

"3.7 grams of mouse spleen, grind into a paste, and put it in ...... It's disgusting! ”

Then add a small drop of leech juice...... Evil ......"

"Add another 0.5 ounces of caterpillar bile...... Evil ......"

"What, add half a melted cat poop at the end? Shit, which bastard invented the recipe? Li Quan kept moving his hands while cursing with disgust in his stomach.

After all the ingredients are put in one after another, and then constantly stirred, the color of the medicine in the pot continues to change. When the cauldron finally cools down, the potion will be ready.

Looking at most of the cup of black and sticky viscous liquid in his hand, Li Quan looked disgusted.

As soon as he thought that he would have to drink this thing often in the future, Li Quan suddenly felt that his whole life was bleak, tragedy!

But in order to open up the situation in the Harry Potter world, for his own careful plan, Li Quan gritted his teeth, closed his eyes, and cheered!

That taste......

It's hard to describe......

Li Quan only felt that the sky was spinning, and there seemed to be a fountain in his throat about to gush up, and he resisted the desire to spray all over the table, and finally swallowed the last mouthful.

"Evil ......" Li Quan opened his mouth and stuck out his tongue, the tip of his tongue was a little numb. Whether this thing is useful or not is still a question. After all, he was also refining for the first time.

Thinking of this, Li Quan came to the dressing mirror and stood in front of the mirror and waited quietly.

"Nothing changed? Could it be said that it failed? ”

Li Quan was thinking like this, and suddenly a feeling like an electric shock rose all over his body, only to feel that his skin was hot, and in the mirror, the naked eye could see that the skin began to squirm, as if some insect was walking under the skin. He'd felt this before, when he used the Transfiguration Potion Compound Potion, and when he used the Transformation Tincture, he was almost familiar with it.

After a while, Li Quan in the mirror had changed. The appearance has not changed much, but the whole face has matured a lot, and the height has also increased a little, reaching 1.85 meters.

At this time, he was dressed in black wizard robes, and he looked like a handsome and tall adult wizard.

Li Quan couldn't help but be amazed. This is what you look like at 30 years old? Tsk, kill all ages.

"Obviously, this refining was a success. In the future, refining will be handy. Alas, alas, it would have been more perfect if the taste had been improved. Looking at his adult self in the mirror, Li Quan thought happily.

At this point, the last preparation of his plan was completed. A 30-year-old is more suitable for the next move than a 17-year-old, and the next step is to infiltrate Hogwarts in the open.

Don't get me wrong, Li Quan didn't want to enroll in Hogwarts School of Witchcraft and Wizardry, if that was the case, he should refine the Eliminator, not the Eliminator. Hogwarts only accepts students of 11-year-old age and wizarding talents.

Becoming an adult is a decision he finally made after careful consideration.

He didn't go to Hogwarts to go to school, but to apply for a teacher.

That's right, he didn't want to be a student, but a professor who taught students.

The reason is actually very simple, there is so little you can do at Hogwarts as a student. Hogwarts is a place full of mysteries, and students are told on their first day of school that there are forbidden places where it is absolutely forbidden to take a step, such as a certain hallway on a certain floor, such as a haunted bathroom, such as the forbidden book section of the library, or even the forbidden forest.

And being a professor doesn't have these restrictions, you can go wherever you want, you can appear in the restricted area whenever you want, and wandering around the castle in the middle of the night can also be used as an excuse to patrol the safety of students.

The real benefit was that it would allow him to write to the Ministry of Magic as a professor and offer to borrow the time-turner pocket watch, just like Professor McGonagall did for Hermione.

If he was still 17 years old, of course, he would not be able to apply for a professor. Hogwarts teaches adult wizards with unique skills. And when he entered the school, he was a little older.

If he wanted to talk about what he could teach as a teacher, Li Quan felt that it was perfect for him to teach potions or herbology by himself. As an adult wizard and with a unique skill, he is already qualified to apply.

Of course, all of this needs another opportunity.

He's an outsider after all, he's a stranger to everyone in the Harry Potter world, oh yes, Harry Potter has seen him once, and that's it.

It is impossible for such an unknown person to suddenly come to the door and offer to teach at Hogwarts.

Therefore, before that, Li Quan had to arrange for himself to make up a reasonable identity.

He needed a breakthrough.

Obviously, it is not easy to enter Hogwarts to teach, if there is the biggest breakthrough, Li Quan thinks, it is the key keeper of Hogwarts, Hagrid.

The next goal in his plan was Hagrid.

In the original Harry Potter books, Hagrid is a vicious-looking, good-natured, sentimental half-giant, and a former student at Hogwarts School of Witchcraft and Wizardry. But when he was a student, Hagrid was framed by fellow student Voldemort and was convicted of murder for decades. Hagrid was supposed to be expelled from the school, but was vouched for by the great wizard Dumbledore, who was then a Transfiguration professor and later headmaster, and recommended Hagrid to serve as the caretaker of the hunting grounds next to the Hogwarts Forbidden Forest, as well as the keeper of the school's keys.

Hagrid is one of the main Harry Potter's best friends and is a classmate of Harry's parents, and he takes good care of Harry. The reason why Li Quan chose Hagrid as a breakthrough was because of Hagrid's occasionally sloppy and rambling personality, as well as Hagrid's fanatical hobbies.

Doing what you like is often the best way to break through a person's psychological defenses.

There are traces of Li Quan's decision to do so. In the original books, Hagrid was told by Harry more than once, revealing secrets, and because of his fanatical hobby.

So, what exactly is a hobby?

It starts with why Hagrid was framed by Voldemort and almost expelled.

Hagrid showed a great interest in magical beasts when he was a student, perhaps influenced by the genes of giants in his blood, and the more dangerous the magical beasts, the more interested Hagrid became.

Hagrid raised a giant eight-eyed spider, which he named Aragog. Later, one day, Aragog is spotted next to the dead student Myrtle, and Voldemort identifies the eight-eyed spider who killed Myrtle. But in fact, Aragog did not kill, but Voldemort stole the monster released from the school's secret room and killed Myrtle. However, due to the conclusive evidence, Hagrid was unable to stay at school, and Aragog, the eight-eyed spider, was sent to the Forbidden Forest.

Hagrid's passion for magical beasts hasn't diminished. Let's take a look at what monsters Hagrid raised one after another: a giant dog with three heads, a Norwegian spinback dragon, a hippographer, a winged beast, a tree guard, and a fried tail snail...... Hagrid is also interested in strange plants. Later, he even brought his pure-blood giant brother back to Hogwarts......

All in all, this is by no means a worry-free guy.

This is exactly what Li Quan likes to see.

He asked Jordan to take the Dream Team to help him get the Hydra eggs back for this purpose. He wanted to use the hydra eggs to attract Hagrid, first mingling with Hagrid, then showing his admiration for Hogwarts, showing his knowledge of alchemy and potions, and asking Hagrid to introduce him to Dumbledore.

The ultimate goal is to become a Hogwarts teacher this school year, using this as a springboard for a time turner.

This is Li Quan's whole plan!

It can be said that the first step in the whole plan is not difficult, and he is confident that Hagrid will comply, and with the only one in this world, the hydra egg from Azeroth, it will be enough for Hagrid to agree to his "small request" that is innocuous in Hagrid's eyes.

The most difficult part of the whole project was how to convince Dumbledore to accept him and agree to teach at the school after meeting him.

In this regard, Li Quan has another careful plan.

Everything was ready, Li Quan didn't stay in the Azeroth plane for even a second, and when he got the hydra egg, he immediately traveled back to the Harry Potter plane in the room.

The plan began to be implemented.

In the bustling lobby of the Broken Cauldron Bar, Li Quan laid out the cauldron, reagents, and various medicinal materials in a grand manner, and then continued to research and prepare various potions.

An adult wizard like him who drilled hard immediately attracted the curious eyes of some people, and Li Quan's unfamiliar oriental face was of course the main factor. However, when they found out that Li Quan's refining process was nothing to look at, most of them lost interest. However, many people became interested in the large package of strange giant eggs placed next to Li Quan, and occasionally someone came to inquire a few words.

Li Quan's refining medicine is just for show, and he is also passing the time, he is refining medicine on the surface, but in fact, these hydra giant eggs are the bait.

For the next few days, Li Quan appeared early in the lobby of the Broken Cauldron Bar every day and continued to refine his potions until late at night. Except for eating time and going back to bed at night, he sits in the lobby all day, and there is a bunch of hydra eggs next to him every time.

His whole posture of Jiang Taigong fishing for the bait is waiting for the rabbit here, but in fact, he is also forced to be helpless. His knowledge of the Harry Potter plot was limited to a few times, and if he could know where Hagrid was now, he would have made another plan instead of this seemingly stupid approach.

As far as Li Quan knew, Hagrid frequented the Leaky Cauldron, one of the most popular bars for wizards in all of London, and for another major reason, Diagon Alley was hidden in the patio behind the bar. That's why there is an endless stream of wizards passing by every day. Aside from Hogwarts, the chances of encountering Hagrid are the highest here.

Li Quan waited for half a month.

Hagrid didn't wait for him, but for another person.

A weirdo.

On this day, a figure covered in a hood walked into the Leaky Cauldron Bar, because the wizard had covered his whole body so that outsiders could not see his face clearly.

The man walked in and sat down in the darkest corner of the bar, placed a bag on the table, and opened it, revealing an egg the size of a rugby ball.

Li Quan's pupils couldn't help but shrink when he saw it.

Dragon Egg! This man is Quirrell in disguise!

"I met these two guys." Li Quan's mood at the moment is extremely complicated!

Why two? Who is Quirrell?

Quirrell, in the original books, is Harry Potter's Defence Against the Dark Arts professor in his first year at Hogwarts, and is also the final boss encountered by Harry Potter in his first year.

Quirrell was a two-faced man, and behind his head, attached to another face, was the face of the most terrifying and evil Dark Lord in the wizarding world's history, Lord Voldemort!

Li Quan only needed one glance to immediately remember the ins and outs of this dragon egg, which was the same dragon egg that Hagrid later obtained and hatched into the Norwegian Ridgeback Dragon. Quirrell used this as bait to reveal Hagrid's biggest weakness in the three giant dogs guarding the basement of Hogwarts.

The three-headed dog was the one Hagrid had raised, and Dumbledore had borrowed it to guard the secrets of Hogwarts. With this information, Quirrell easily infiltrated the underground vaults of Hogwarts, trying to obtain the Philosopher's Stone for his master, Lord Voldemort, who was attached to his head.

Having said that, Li Quan's own plan was inspired by Quirrell's approach to Hagrid in the original book.

But Li Quan never expected that he would collide with Quirrell and appear here waiting for Hagrid at the same time.

Li Quan couldn't help but smile bitterly when he thought of this: "It's really unpredictable." Now, things seem to get a little complicated. But...... Quirrell is here, so is the plot already underway? So, Hagrid will soon be at the Leaky Cauldron as well? Quirrell would then use the dragon egg to trick Hagrid. Maybe I'll meet Harry Potter here in two days......"

Remembering the last time he saw the skinny little black-haired boy with glasses, Li Quan shook his head and smiled bitterly, Harry's thin appearance gave him a wrong judgment, which was obviously due to domestic abuse and malnutrition, so he was not tall, so he misjudged the time at that time, thinking that Harry was only eight or nine years old at the time.

In fact, he was almost 11 years old when he saw Harry Potter that time. It was on Harry's 11th birthday that he received an offer to attend Hogwarts School of Witchcraft and Wizardry.

Thoughts flew back, Li Quan lowered his head and continued to fiddle with the potions on the table, cleverly concealing his attention to the other party. He was afraid that his attention had caught Voldemort's attention in Quirrell's head.

Li Quan was dispensing medicine in his hand, but he was absent-minded in his heart, and he was a little undecided. Now that you've run into Quirrell's conspiracy, do you want to stop it? Mess with it and don't let Hagrid reveal the weakness of the three giant dogs?

Doing so is likely to change the plot and delay Voldemort's pace.

But again, it can put yourself in a dangerous position.

Li Quan didn't dare to guarantee that he would be Voldemort's opponent.

Li Quan scratched his head, hesitated again and again, and finally sighed. Either way, this is his only chance to infiltrate Hogwarts, and no matter what, he must succeed and not fail. As for Voldemort's conspiracy plan, even if he obstructs it, it may not bring any benefit, but it has a great disadvantage, in addition to putting himself in a dangerous situation, it will also cause a change in the plot, which he cannot accept.

As a traverser, knowing the plot well is the biggest advantage. It would be a thankless fool to change the plot and turn the next thing in an unpredictable direction.

"I'd better wait for Hagrid to come, and try not to attract Voldemort's attention. As for Voldemort himself, he has the protagonist Harry Potter to deal with. I'd better apply for my professorship with peace of mind, and don't meddle in my affairs......"

Li Quan didn't know that while he was thinking on this side, Quirrell was talking quietly to the evil master behind him.

Behind Quirrell's head, a cold voice sounded faintly, "This man seems to have the same thoughts as you, and he may be an obstacle for us." ”

"Master, this man is not a threat to our plans, you don't have to care too much about this person." Quirrell hurriedly replied in a humble whisper, "Our plan is so detailed that no one will see through our plan in advance. Rest assured, master, I will definitely get the Philosopher's Stone for you. ”

Voldemort said in a cold voice, "Hmph, I hope so." Immediately he was weak and speechless, and he was now half-alive and half-dead, and possessing Quirrell had weakened his already weak soul even more, but he had to take the risk, he had to go to Hogwarts to take the Philosopher's Stone! Only with the powerful power of the Philosopher's Stone can he be resurrected.