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Tik wrote down the existing conditions and thought for a long time. He pulled out several strands of his hair. For a moment, he felt like he had no idea where to start. He couldn't help but have the urge to beat up the person who set the question.

Is this really a question that a human can solve?

Tik had no choice but to make a random estimate of a number and assume it was the total number of peaches. He then tried to substitute it into the calculation and slowly look for the pattern.

That night, there were many wizards who were tortured by these brain-burning math problems like Tik. Most of them failed on the first three questions and angrily tore the manuscript paper in front of them in half or smashed the tables and chairs to pieces. However, the real warriors were able to go against the current and enjoy this feeling of both pain and happiness.

……

At the same time, Lin En, who was being targeted by hundreds of wizards and wanted to be beaten up, was building a new scene in the magic field.

The second gathering place was turned into a library by Lin En, which was filled with various Olympiad mathematics books. Then Lin En began to think about what he should use as bait to attract those wizards to stay in the magic field for a long time.

It is not an easy task to crack the mental frequency of a formal wizard and thus access his computing power.

The Faceless Gathering created by Helram took one or two years to crack the mental frequencies of more than a dozen three-ring wizards.

Lin En didn't have that much time to wait, so he thought of a way to speed up the progress, which was to let these wizards stay in the magic field and do questions frantically to consume their mental energy, thereby speeding up the brain's cracking progress.

Calculus may be a good choice, which is brain-burning enough. Many wizards are still confused about the many theories and formulas he proposed before, knowing what they are but not why they are. Learning calculus can also help these wizards understand the derivation process of those formulas and theories.

Of course, the wizards of Greenrill were not completely ignorant of calculus. For example, the method of cutting the circle they used to calculate pi - using the perimeter of a regular polygon inscribed in a circle to continuously approximate the circumference of the circle - applied the knowledge of calculus.

There are even wizards who have successfully used a method similar to Mouhe Fanggai's to derive an algorithm to calculate the volume of a sphere, and the results they obtained are very accurate.

All I can say is that smart people are everywhere, but in the past there were not many wizards who were willing to focus on and seriously study mathematics.

Most wizards still prefer subjects like elements and plasticity, which allow them to intuitively gain power and master magic as long as they study them. Basically, only alchemists will take the time to study these things in depth.

As Lin En was thinking about it, a sudden palpitation suddenly emerged in his heart...

Almost instantly, Lin En broke free from the magic field and opened his eyes suddenly. There was nothing in front of him, but an invisible magic barrier had been cast on him.

Then there was a slight sound, as if a blade was cutting cloth. A strange dagger slowly emerged from the air, covered with complicated runes, and slashed straight towards his neck.

Chapter 173: Demon-Breaking Dagger and [Resist Fire Ring]

The temporarily released magic barrier was as thin as a piece of paper in front of the strange dagger.

However, this momentary pause and the temporary appearance of his figure were enough for Lin En. He stepped vigorously on the ground with his right foot and, with the help of the reaction force, quickly leaned back to avoid the dagger stabbing his neck. He fell to the ground with the seat behind him, and then rolled several times to create some distance.

However, when Lin En stood up again, he couldn't find the enemy's location at all. The lounge was empty, as if everything before was just an illusion.

Some kind of visual trick?

Lin En cast a [Mage Shield] on himself without hesitation. At the same time, the elusive danger came again, this time from his side.

[White Phosphorus - Resist Fire Ring! ]

This time, Lin En was fully focused and counterattacked almost instantly. He didn't know where the attack came from, but he didn't need to know either!

The blazing fire surged from his entire body, spreading in all directions without a single dead angle. The bricks and stones on the ground cracked layer by layer, and the blazing air waves rolled over and swept everything in...

The Ring of Resistance is one of the results of Lin En's research on force field magic, and it is also a three-ring upper-level magic!

This attack alone consumed a quarter of Lin En's magic power, but the effect was also particularly significant. The distance was so close that there was no way to avoid it. The terrifying white phosphorus fire quickly attached to the attacker's body...

Sharp screams and wails rang out in the lounge. A middle-aged wizard vaguely emerged from the flames. His entire body had been set on fire. White phosphorus was gnawing at his flesh like maggots on his tarsal bones. He could only weakly slap his body with his hands. It was as if he was dancing in the fire...

Just as he guessed, this kind of magic can only deceive the vision and cannot make people disappear truly!

Lin En breathed a sigh of relief, but soon noticed that the wizard who was engulfed by flames had dropped the weapon in his hand to the ground. It was not a dagger, but a short sword...

Lin En's pupils constricted, and a chill surged into his heart again, which meant that there was definitely more than one attacker!

The moment he realized this, the [Mage Shield] on his body shattered again. Fortunately, the deflection force field worked and the sudden attack narrowly missed him.

The strange dagger only appeared at the moment of shattering the [Mage Shield], and then disappeared without a trace.

However, just because you can’t find any clues visually doesn’t mean that your other senses are useless!

Lin En's index finger trembled slightly in the air, and imperceptible magic waves spread rapidly in a circle, hitting the obstacle and then returning again. The only object in the room that frequently changed its position in the shape of a human was undoubtedly the first attacker!

However, unlike what he expected, the attacker did not approach him again, but ran madly towards the outside. Obviously, the failure of two consecutive attacks, coupled with the tragedy of his companions, had made the attacker retreat...

It’s too late to leave now!

Lin En glanced and changed the vibration frequency of the magic wave, adjusting it to a frequency similar to that of the brain.

Unlike the battle with Alok and others, Lin En had no intention of holding back this time. Such a special and imperceptible attack took effect immediately. The attacker who was fleeing at a high speed felt as if his brain was about to explode. He rolled to the ground in a mess, unable to maintain his magic any longer, and his figure soon appeared.

Only then did Lin En see clearly that the attacker was a man in a gray robe. He had a thin face, sparse and messy hair, deep eye sockets, prominent cheekbones, and his hands were tightly grasping his head. His face was ferocious and he looked painful and distorted.

The next moment, four ice blades emerged from the void and pierced directly into his limbs.

Lin En stopped releasing the resonance magic, walked forward, put away the strange dagger, and then looked at the gray-robed wizard lying on the ground, unable to move, and asked coldly, "Name, identity, and reason for attacking me?"

The gray-robed wizard had no intention of replying. His face was filled with fear and uncertainty, and it seemed that he had not yet recovered from the pain that felt like his brain exploded.

"Forget it, I'll take a look at it myself!" Lin En didn't use any fancy interrogation methods. He put his hand on the gray-robed wizard's head and activated the psychic magic he got from Ladakh.

【Memory Retrieval】

This kind of psychic magic can search for related memories from a person's brain, but it is usually only effective when there is a big gap in strength or the other person is not mentally stable. Obviously, now is a good time.

However, at the moment when Lin En touched the other party's memory, the pupils of the gray-robed wizard under him suddenly dilated, and his body kept shaking. Before Lin En could react, he fell to the ground in an instant and was silent.

Is it something similar to soul restraint again?

Lin En frowned. He was not unfamiliar with this situation. He had a similar experience before when he was interrogating the wizard apprentice named Nur at Yieta Harbor.

Only a great wizard who is proficient in psychic magic can engrave a soul restriction in the brain of a formal wizard, killing him instantly and disrupting his memory!

The flames caused by the [Resist Fire Ring] and the piercing screams and wails were extremely obvious in the silent manor, so just over a minute after the attack began, the door of the room was knocked open.

"Professor Lynn, I just heard an explosion and screams, what happened?" Philip and Kevin were the first to rush over, and they were relieved to see that the other party was standing in the room intact.

"I don't know either. I was about to rest tonight when I was attacked by these two men." Lin En kicked the corpse at his feet and said in confusion.

During the days since he arrived in Greenriel, he seemed to have offended the wizards of the prophecy school. If they wanted to take action, they should have done so before the theory of gravity was published and verified.

It can't be that the math problems I gave were too difficult, so someone got angry and wanted to kill me, right?

Philip and Kevin hurriedly looked at the two attackers. The first one was nailed to death at Lin's feet with an ice blade, and the other one had been burned beyond recognition by the scorching white phosphorus and was no longer sound.

The exposed skin was torn off during the struggle, the blood was evaporated, and there were holes on the chest where fingers scratched. The death was extremely horrible. The remaining white phosphorus flames were still constantly devouring the flesh and blood as nutrients to strengthen its own strength...

Is this the so-called fire from hell?

Philip and Kevin immediately remembered the Hellfire that destroyed the harbor town that Lord had mentioned when Lynn first came to Yieta College.

At first they didn't take it seriously, but now after seeing the death of the attacker, they realized the horror of this fire, which is worthy of the name "Hell"!

Chapter 174 Doomsday Cultists

In addition to Philip and his men, the security team that received the news also rushed to the scene at an extremely fast speed, led by August himself!

After checking the two attackers and recording the details, August asked several wizards to take the two away to verify their identities and see if they could find any clues. Then he looked at Lynn and asked with concern.

"You are not hurt, are you, Lord Lin? Do you need to ask a potion master to come over?"

Lin En shook his head, indicating that he was not seriously injured, and then he heard August sigh and say, "That's good. In fact, this is the fourth attack in the past two days!"

"Before you, three councillors had been attacked, and you are the only one who survived so far."

Lin En paused. He didn't expect that things would be so serious. Openly attacking multiple congressmen was simply rubbing the face of the entire wizarding land on the ground!

"Sir Lin, you should find a way to keep someone alive. If you can get something out of him, we won't be so passive." Luo Er at the side couldn't help but speak out.

The entire security team has been extremely busy over the past two days. There have been successive attacks in the city of Greenriel, and the victims are extremely important congressmen. The pressure they are under can be imagined. August, who is acting as the Speaker, has been criticized by many people.

In order to avoid causing widespread panic, the parliament immediately blocked the news and, based on the common characteristics of the attackers' targets, ambushed near the residences of several parliamentarians who were proficient in elemental science. Unexpectedly, the target of the attack this time was Lin En, who was in another urban area.

"You can't say that, Rawl. A raid like this is no different from an ordinary battle. Even the most powerful wizard can be careless sometimes. It's a blessing to be able to survive." August shook his head, refuted Rawl's words, and then spoke again.

"But Sir Lin, please tell me what happened in detail. Maybe we can find some important clues."

"About fifteen minutes ago, I was sitting in the seat next to me, studying the spell model of the new magic, and then I saw a dagger stabbing towards my neck..." Lynn roughly recounted what happened before and after the attack, but made some changes and deliberately ignored the fact that he used psychic magic to retrieve his memory.

After hearing the entire story of the attack, the wizards present couldn't help but shudder. Before, they only knew that Lin En had been attacked, but they didn't expect the process to be so thrilling.

This kind of sudden attack without warning is impossible to defend against, not to mention that the attackers are armed with weapons that can instantly break the [Mage Shield]. No wonder three congressmen died inexplicably at home.

Luo Er tried to put himself in Lin En's situation and broke out in a cold sweat. If he was the one being attacked, he would probably be a corpse by now.

However, this time the attackers obviously chose the wrong target. This young wizard from beyond the Sea of ​​Mist was not easy to deal with. Rawl had experienced this firsthand when he was at the port of Ieta.

"Master August, do you know what kind of magic is that can avoid sight?" Lin En asked curiously.

"It's probably polarizing magic, or shadow magic... In addition, some psychic magic can also make people hallucinate." August said thoughtfully. "Not many people can use these magics, which is a very important clue."

"Are there any suspects?" Lin En continued to ask. Three congressmen died in two whole days. It is possible that the security team did not find out anything, right?

He was attacked for no apparent reason. Although he was not injured, Lin En was still a little nervous. If his reaction was a little slower, the result would be unpredictable.

"These attackers are likely related to the Doomsday Cult that has become active recently." August said solemnly, "Because the councilors who were attacked are all three-ring wizards who excel in the elemental field and have put forward many unique insights."

"From the intelligence the security team has gathered, the wizards of the Doomsday Cult seem to believe that the elements themselves have life and consciousness, and they hope that all wizards will give up their study, research, and exploration of the elements, believing that this is the reason for the coming of the Doomsday."

Lin En was very surprised. Are these wizards all crazy? Elementology is the first major subject in magic, and most of the witchcraft models are related to it. This is tantamount to cutting off one's own arm.

"No, if they are looking for wizards who are proficient in elemental studies, then why are they targeting me?" Lin En asked puzzledly. He has not made any remarks related to elements recently.

"Professor, could it be that your theory of gravity conflicts with those people's doomsday talk?" Lydia hesitated and said weakly.

Lin En also realized this very quickly. He had heard Lydia say before that the so-called five-planet conjunction and the fall of the moon in the doomsday prophecy could be refuted by the theory of gravity.

It is equivalent to correcting their doomsday remarks and destroying the soil for the existence of doomsday sects from the root.

In this way, the other party does have a reason to attack him.

"Since you have always suspected that this matter is related to the Doomsday Sect, why don't you arrest a few believers and interrogate them?" Lin En asked again. These wizards were openly spreading the Doomsday message everywhere, and it was almost as if they had the label of "troublemakers" written on their faces.

After August's explanation, Lynn realized that he was once again habitually thinking with the mindset of his previous life.

Official wizards are a privileged class in Greenriel. If the parliament arbitrarily arrests and investigates an official wizard without solid evidence that he has violated the law, the parliament will face great public pressure.

Not to mention that there are many people who believe in doomsday rhetoric and elemental spirits. I am afraid that hundreds of wizards will be involved, and rash actions may cause greater chaos.

"But I can't worry about that now." August said thoughtfully. "I have sent several security teams to track and investigate the wizards who spread the doomsday rumors, hoping to find some key evidence."