Chapter 371

The library of the Abyss Observatory, inside a small reading room protected by special runes.

This space, personally arranged by Yute'er, possessed the strictest privacy protection within the observatory.

The walls were embedded with "Silence Stones," capable of completely blocking any form of prying and eavesdropping.

The room was not large, only able to accommodate one round table and four chairs.

But it was precisely this cramped space that created a certain intimate and focused learning atmosphere.

Luo En sat in a position facing the door, so he could detect any possible interference at the first moment.

To his left, Euphemia was focused on reading a thick theoretical tome.

Today, she was clearly much more relaxed than when they first met.

That perfectly maintained mask had disappeared, replaced by a focused expression unique to a seeker of knowledge.

Chloe on the right still covered her eyes with black silk, listening silently on the side.

"The core of Spell Reversal lies in the redefinition of the causal chain."

Luo En's voice appeared exceptionally clear in the quiet room:

"Traditional spellcasting follows linear logic: the caster produces a specific effect on the target through runes and magic. Spell Reversal, however, is the spatial folding of this process."

He used his spiritual power to outline a complex three-dimensional structural diagram on the tabletop.

The figure looked like a twisted ribbon.

The surface and the inner side connected strangely at a certain node, forming an infinite ring with no distinction between inside and outside.

"Look here..." Luo En's finger pointed to the key node of the figure:

"When the spell's energy flows through this reversal point, the identities of the caster and the subject are swapped.

The person who was supposed to bear the effect becomes the source of the effect; while the original caster becomes the one who bears it."

Euphemia frowned, her face full of confusion:

"But this swap... what are its trigger conditions? If Spell Reversal is so powerful, why isn't every wizard learning it?"

Worthy of being Number 18, who was able to stand out from so many experimental subjects; she was indeed very smart.

Luo En nodded approvingly: "Very good question. Spell Reversal is indeed powerful, but its limitations are equally strict."

He adjusted the energy structure diagram on the table, adding more details:

"First, the reversal process requires an extremely deep understanding of the original spell.

You must be able to perceive every rune node, every flow of energy, and even fully grasp the spiritual power characteristics of the caster."

"Second, the timing of the reversal must be extremely precise.

Too early, and the spell has not fully formed; too late, and the effect is already irreversible.

This time window is often only a few seconds, or even shorter."

He paused for a moment, his expression becoming more serious:

"Finally, and most importantly.

Every time you use Spell Reversal, it causes permanent damage to the user's soul.

This damage is cumulative, and when it reaches a certain critical point..."

"What will happen?" Chloe on the side heard the direction she was interested in and asked softly.

Although her eyes were covered, her "gaze" appeared exceptionally focused.

"The soul shatters, consciousness dissipates," Luo En stated this terrible consequence without concealment:

"Most of the wizards in history who attempted to study this craft did not have a good end.

They either died from soul collapse or were killed by backlash during a failed reversal."

This honest explanation of the risks left both women in deep thought.

Especially Chloe; she thought of those astrologers who were killed by backlash because they peered too much into the River of Fate.

"However..." Luo En changed the subject:

"For your special situation, Euphemia, these risks are controllable.

Because what you are reversing is not an external spell, but the control mark deeply planted in your bloodline."

He readjusted the energy structure diagram, showing a more complex model:

"The control means Aiden left in your body is essentially a continuous bloodline spell.

It is deeply integrated with your vitality and magic circulation, forming a relatively stable energy circuit."

"And in this situation, Spell Reversal is more like... changing the direction of a river, rather than reversing the fall of a waterfall. The difficulty will be greatly reduced, and the risk will be reduced accordingly."

A fire of hope reignited in Euphemia's eyes: "So I have a chance to succeed?"

"Not only a chance, but the success rate is quite high," Luo En gave a clear answer:

"As long as you can fully master the theoretical foundation and maintain enough patience and caution during the practice process."

In the next two hours, he explained the basic theory of Spell Reversal in detail.

From the rearrangement of runes to the precise control of energy flow, from the layered application of spiritual power to the key points of consciousness anchoring.

As a skilled lecturer who had already taught many courses, Luo En already had his own experience with teaching.

Every knowledge point he listed for Euphemia had been carefully combed through.

Euphemia showed amazing learning talent.

As a perfect creation made artificially, her memory and comprehension far exceeded that of ordinary geniuses.

For many complex theoretical concepts, she could often fully master them after only one explanation.

"This learning speed..." Luo En sighed in his heart:

"Aiden indeed put a lot of effort into creating her. In terms of learning speed alone, she is even faster than Eve."

But at the same time, he also noticed the subtle sense of disharmony in Euphemia.

Her every reaction was too rigid, and her knowledge stopped at mastery without her own understanding.

It was as if she were running according to some preset program, lacking true personality.

"This is perhaps the limitation of artificial geniuses," he thought in his heart:

"No matter how exquisite the technology is, what is created is ultimately just some kind of construct, and it is very difficult to possess sufficient self-creativity."

During the explanation process, he also clearly felt the feedback of grace from the other party.

Although the quantity was not as abundant as what he received when teaching Eve, the quality was exceptionally pure.

This grace carried a special "relief" quality, as if every bit contained a longing for freedom.

The grace accumulated and flashed constantly in the depths of his consciousness, and every increase was accompanied by a subtle sense of satisfaction.

"Chloe's learning progress is also quite good."

And when the explanation turned to Chloe, the blind girl showed the same focus and talent.

He did not know if the other party had said something to Yute'er, but the old professor had handed over the teaching work that he should have done himself to him.

And what Luo En needed to impart to the other party was knowledge regarding historical scholars.

"The core ability of a historical scholar lies in restoring the true scenes of the past through memory imprints."

He explained while demonstrating the relevant technical principles:

"But this restoration is not a simple replay of information, but a highly immersive experience.

The historical scholar's consciousness will partially merge into the historical scene, resonating with the environment, characters, and events of that time."

"This sounds very dangerous," Chloe keenly sensed the risks involved:

"If the consciousness is too deeply immersed in the historical scene, will it get lost in the past time?"

The girl had an extremely keen understanding of the concept of time and immediately captured the key information point from his description.

"There is indeed such a risk," Luo En nodded to confirm:

"There have indeed been scholars in history who could not return to reality because of excessive immersion, and eventually died trapped in a memory maze."

"Then... how to avoid this risk?" Chloe's voice carried obvious tension.

"Powerful spiritual anchoring ability," Luo En's answer was concise and direct:

"The greatest historical scholars in history often possess some kind of special time-type talent or equipment.

For example, the legendary 'Clock King' Erika; she successfully explored countless dangerous historical events by relying on her deep understanding of time."

Mentioning Erika, Luo En remembered that legendary wizard's backward glance that seemed to have sensed him.

"And Time Hounds..." Chloe mentioned this dangerous term that historical scholars could not avoid:

"In divination, I have seen blurred images of these creatures. Do they really actively hunt historical scholars?"

"Only those researchers who touch sensitive history," Luo En's tone became cautious:

"If you only study some ordinary historical events, they will not pay attention to you.

But once it involves certain... forbidden areas, they will find you by following the fluctuations of the timeline."

Speaking of this, his eyes became deep:

"However, if one can master sufficiently powerful time-type abilities, it is not impossible to counter these creatures.

The Clock King Erika once successfully hunted a Hound King-level Time Hound."

This information ignited a fire of hope in Chloe's eyes.

Although that goal seemed out of reach, at least it gave her a direction to work towards.

The subsequent learning process went deeper.

Luo En not only imparted theoretical knowledge but also shared many practical experiences.

From the analysis techniques of memory crystals to the safe infiltration methods of historical scenes, from the identification of time imprints to the protective measures of spiritual power.

And the talent Chloe showed during the learning process was equally impressive.

Her perception of the flow of time was extremely keen, and she could often detect subtle changes that ordinary people could not perceive.