As the operation of the book bar gradually gets on track, Jia Lan will not interfere too much in daily affairs, but he still needs to participate in some planning work behind the scenes, such as developing a variety of novel light meals and beverages, as well as designing and making small equipment and props needed for the book bar.

Jia Lan is busy with these affairs not for profit purposes, but to verify whether the theories he proposed about souls from the unknown world are safe and correct.

This can be said to be a large-scale academic experiment involving a large number of people.

However, the participants in the experiment, or the "experimental subjects", do not know that they have become part of the experiment.

For Jia Lan, this is undoubtedly the most important task at this stage besides understanding and being familiar with the magic system of this era.

After returning to his administrator's cabin, Jia Lan wanted to cast a [Dancing Lights] for lighting, but after thinking for a while, he lit an oil lamp, spread out a stack of parchment, and began to record the "experimental data" he observed during the trial operation for a day.

After completing these records, he will start his routine reading work every night.

He has not finished reading the basic books on the first floor of the library. After he finishes reading them all, he will need to start attending the lectures of the magic professor in the academy.

"Today's trial operation must have attracted the attention of the college management, right? Are they still waiting and watching? It is estimated that within three days, someone will come to intervene in the operation and management of the book bar."

While recording what he saw and heard that day, Jia Lan muttered to himself: "The speculation of the soul of the unknown world and the knowledge system of manipulating people's hearts are really interesting... I wonder what kind of surprises 'you' will bring me? It's really worth looking forward to..."

"...The types of magic can be roughly divided into different categories such as white magic, red magic, black magic, blue magic, green magic and death magic..."

"...Among them, 'white magic' is also called holy light magic, light magic, light magic or sacred magic, which is mainly mastered by the priests of the [Holy Light Church]..."

"...As for 'red magic', it is also called red magic and fierce magic. Its notable characteristics are high destructiveness and serious pollution to the environment. It is difficult to recover after damage..."

"...There is also 'black magic', which is a magic system that is completely opposite to white magic. It uses curses, diseases, plagues, toxins and other means to achieve the purpose of harming others..."

"... and 'blue magic' is a way of fighting in which the magician is extremely weak, has almost no attack power and self-protection ability, and completely relies on external objects..."

On the podium, the magic professor pointed to the unique magic symbols on the blackboard and popularized magic knowledge to the students who were concentrating below.

Seeing that the students listened very seriously, the magic professor nodded with satisfaction.

Although the lecture fee is not cheap, every magic professor will try his best to impart his knowledge to the apprentices.

"Although there are many kinds of magic in this world, as students of [KoMo University], you are mainly exposed to 'Blue Magic', which is also called natural magic, a mysterious ability that uses the power of nature!" He knocked on the blackboard with his pointer, pointed to the symbol representing "Blue Magic" and said seriously: "White Magic is controlled by the church, and people without firm faith cannot learn White Magic; Red Magic is mostly controlled by the military, used for war and destruction, and is forbidden to spread among the people; Black Magic is extremely dangerous and is banned by both the church and the country; as for the evil existence of Death Magic, it goes without saying that once someone is found practicing it, they will be wanted by the official authorities of various countries, and may even attract the pursuit of the church's knights and demon hunters."

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"As for the special and minor magic systems like blue magic, although they are not banned, they require very special qualifications to practice. At the same time, since the practitioners are extremely weak, they are almost worthless!" The magic professor proudly knocked on the magic symbol of blue magic again: "Only blue magic, that is, natural magic, is a truly powerful and orthodox magic system. Now let's explain the basic classification of blue magic..." [Interesting classification... and it seems to have some shadows of arcane magic...] White magic seems to be related to divine magic. Red magic seems to include the theories of other sub-schools in the "Evocation System" except the "Elemental Sub-School". Black magic seems to have a certain connection with the "Dead Soul System". Blue magic seems to be the "Calling Sub-School" in the "Spell System", not the "Summoning Sub-School". Its restraint on summoned objects is not as strong as that of the Summoning School... Death magic should be the "Undead Sub-School" in the "Dead Soul System", right? Green magic... natural magic, this description is very vivid, but isn't this the "elemental sub-school" in the "Energy Department"... However, they added the natural magic of the druids to the green magic system, why is this so? Has the "Forest Goddess" Alona fallen?

Sitting in the corner of the lecture hall, Jia Lan took notes while distractedly thinking about his own problems.

Since his mental power gradually recovered and his soul strength increased, Jia Lan found that he could easily split his attention and even handle several things at the same time. This should be the benefit of the two split souls.

During this period, in addition to restoring his arcane ability step by step, Jia Lan read a lot of books in the library in order to understand this era as soon as possible.

However, as he learned more and more, he became more and more confused.

The knowledge systems of the two eras were almost completely different, and there was a serious conflict in his mind, forcing him to master the two systems independently first, sort them out, and then refer to and compare them.

But whether it is the "arcane knowledge system" or the "magic knowledge system", it is not too difficult to master it with Jia Lan's learning and comprehension abilities. It only takes time.

What really bothers him is the huge "knowledge system" left by the unknown soul in his mind.

This is a field that Jia Lan has never touched before. The knowledge possessed by any "soul from the unknown world" that emerges from the "unknown knowledge system" is full of temptation for him.

What Jia Lan fears most about "souls from the unknown world" is not their impact on this era, but their diffusion.

Just like the thing called "industrialization", it only leaked a little bit of its prototype, and it quickly invaded the minds of the people involved, spontaneously began to spread and spread, and turned a simple housewife into a slave of a monster called "capital".

Although he knew it might be dangerous, Jia Lan just couldn't stand the analysis and exploration of "unknown knowledge".

Although he was very careful, the "unknown knowledge" was not under his control at all and was gradually being unsealed in his mind.

These unlocked knowledge formed a terrible wave, which was constantly impacting the "dam" built by his original knowledge system, causing cracks in the "dam".

If this continues, the entire "dam" will be questioned by himself and face collapse.

The collapse of the knowledge system is almost as terrible as the collapse of faith for a spellcaster.

This is why after encountering the problem of "Lemli Potion Workshop", he took the risk to set up "CoMo University Library Book Bar" to conduct "management and operation" experiments.

Jia Lan felt that the proverb of the unknown soul made sense: "There is only a thousand days of thieves, how can there be a thousand days of defense against thieves."

If a spellcaster is targeted by an elite thief, it is definitely a very troublesome thing.

Not to mention a thousand days, it is estimated that within a month, he will collapse because he is always in a state of high vigilance and perception, unable to rest and meditate.

Therefore, as a spellcaster, when encountering difficulties, you should not choose to escape, but solve the problem.

If it is impossible to defend against the elite thief's pursuit for a thousand days, then the best solution is to find the elite thief first, and then kill him with "explosive fire"! What Jia Lan is doing now is the process of "finding the thief".

He must determine which of those knowledge systems are dangerous, which are useful, and which are dangerous but beneficial to him.

In this way, he can study them with confidence and truly control them, and no longer be disturbed by the strong temptation they emit all the time.

If this matter is not resolved, Jia Lan knows that even if there is no harassment from foreign souls in his soul, he will not be able to go too far on this road in the arcane field, and it is even difficult to recover to the strength of a first-level primary mage.

Once the soul has doubts, it means that a big stone has been encountered on the road to exploring knowledge.

If it is not removed, the spellcaster with obsession and fetters in his heart will be unable to move forward in the arcane field!