Half a month has passed in a flash, and since crossing into this other world, Lynn has spent the most comfortable time.

In the morning, I taught a few Olympiad math lessons at the Iyeta Academy of Magic, in the afternoon I went to the halfling's workshop to check the progress of the airship, and in the evening, I did a high math problem and practiced the newly developed magic [Liquid Nitrogen-Ice Domain].

I have to say that it is still somewhat useful to do the questions, the growth rate of mental power is much faster than before, and the only drawback is that when I go out every day, the whole person has a nervous breakdown.

The Olympiad was also taught faster than Lynn had imagined, and after just four days, the exponential summation formula alone was no longer enough to satisfy the appetites of the wizarding apprentices.

They are all looking forward to more complex math problems!

Lynn had no choice but to come up with the second big killing weapon, which was to open the square!

If the exponential growth is a difficult difficulty for these wizard apprentices, opening the square is a pure nightmare!

The students, who were still looking forward to the new content, suddenly wailed, and whenever someone passed by the Olympiad classroom, they could always hear some strange words coming out of it.

"No, I can't open it, I can't open it......"

"No way, it's not my fault, there must be something wrong with the formula!"

"It's not a solution to this problem at all!!"

……

Within two days of the class, Elok and the others shouted that it was too difficult, they couldn't stand it, and they couldn't open the square......

The so-called long division method and continuous fraction method are all used, but more than half of the students are still making slow progress.

There is a new term in the School of Witchcraft and Wizardry called "Professor Omathian's Smile", and it is rumored that once Professor Lynn smiles, no one in the whole classroom will be able to laugh!

In this regard, Lynn is very helpless, it is so difficult to even open the square, and he must not go crazy when he learns calculus in the future......

In the next few days, he could only start teaching geometry, and considering that everyone's learning pace was different, he even divided into elite classes and ordinary classes......

After the new Olympiad class, Lynn was about to go out, but was blocked by Philip.

"Professor Lynn, in the next two days, the Wizarding Council and the commissioner of Magic Weekly will be coming to the harbor of Iyeta, you better prepare in advance!" Philip reminded.

"Is it for the law of free fall?" Lynn was a little surprised at first, but quickly reacted.

"Yes, and your planetary theories, which Master Helram has reported, but whether or not they are published depends on the commissioner of Magic Weekly." Philip nodded.

"What about the Wizards' Council? What did they send people for? Lynn asked curiously, it shouldn't be the same thing.

"They're here to give you a wizard rating!" Philip explained.

In the Wizarding Lands, the official title of wizard is not only a symbol of strength, but also a status and privilege, which can only be granted by the Wizarding Council.

Generally speaking, if it is confirmed that an alien wizard will stay in the wizarding land for a long time, then the council will send someone to confirm the identity and wizard level of the other party, in addition to a period of observation, if it is determined that the alien wizard will not threaten the place, the opponent will be issued an official wizard's badge and robes.

Seeing that Lynn's expression seemed a little worried, Philip hurriedly spoke out to comfort him. "You don't need to worry too much about this, your Olympiad teaching is very good, and it will definitely be okay to pass the observation period."

Lynn nodded, in fact, what he was worried about was not the observation period, after all, he was not prepared to do anything bad in the wizarding land.

What really worried him was the official wizard's rating.

When he joined Iyeta Academy before, Helram didn't test his wizarding level, and Lynn thought that the other party had acquiesced, but he didn't expect this thing to be judged by the council.

Even though Lynn has been working on high-intensity questions for most of the past half a month, it will take several days to reach the limit of mana growth, which is why he has not been in a hurry to obtain the [source of mana].

"In the land of wizards, how are wizard levels determined?" Lynn asked tentatively.

"Generally speaking, the wizards of the first to third rings of the test use magic balls, and there will be no mistakes. Of course, if you're a great wizard, it's useless. Philip joked, and then curiously asked how the rankings were evaluated in the [Arcane Society].

"In the [Secret Law Society], there is only a scholar level and no strength rating, and it doesn't matter what the identity is, only knowledge is worth exchanging." Lynn said casually.

Hearing this, Philip couldn't help but yearn for it, perhaps only in such a place, an official wizard like himself could communicate with the great wizard or even the legendary wizard on an equal footing, and tell his views and conjectures about the world......

"Are there any requirements for joining the [Arcane Society]?" Philip lowered his voice and asked quietly, according to Lynn, the [Arcane Society] should be just a small group exchanging knowledge with each other, and it will not force members to do something they are unwilling to do, and it seems that joining such a society only has benefits, not harms.

"You have to hand over a novel knowledge to prove your ability, and you need to be recommended by someone from a higher level." Lynn patiently added the lie, and stated that after coming to the wizarding land, he had temporarily lost contact with the [Arcane Society], so that Philip could dispel this idea.

After all, in the Secas Empire, there is no [Arcane Society] at all, so he can't change one, right?

After some flickering, Philip left with some regret, and Lynn secretly breathed a sigh of relief, although the lies made up before in order to deal with Hellam's reproach brought him a lot of convenience, but also caused a lot of hidden dangers.

Lynn thought about the strategy in her mind as she walked towards the half-body workshop, ready to check the progress of the airship.

As soon as she stepped through the door, Lynn bumped into Lydia who was hurrying out.

Judging by the height alone, this is simply a small man crashing into the giant's body, but the result is the opposite, Lynn took a few steps back to stabilize his body and not fall to the ground.

Lydia didn't seem to have anything to do, and excitedly dragged Lynn by the arm and dragged her inside.

"Come with me, Professor Lynn......"

After working overtime day and night for most of the month, their airship has been completed ahead of schedule!

(PS: New book for support.) ）