This time, inside the beautiful castle, Merlin carefully looked around with his Mind Power and discovered that the void surrounding the castle was actually a thick layer of ice crystal. Even the ground underneath consisted of a thick layer of ice crystal.

The entire castle seemed to be contained in a frozen subspace.

Merlin was truly amazed. The tactics used by Great Wizards were far from what he could possibly comprehend.

"Merlin, come in. I'm inside the castle!"

Wizard Mogan's voice rang in Merlin's ears so he quickly pushed open the castle doors and walked into the hall. Inside the hall, Wizard Mogan's eyes were closed shut and he was sitting quietly in the chair.

"Teacher Mogan, what happened to the mysterious Legendary Wizard?"

Merlin bowed to Wizard Mogan respectfully. He was now Wizard Mogan's disciple, one of the strongest bonds among Spell Casters. Wizard Mogan's success was his success, and Wizard Mogan's loss was also his loss. Therefore, Merlin was concerned about how Wizard Mogan had handled it.

Wizard Mogan opened his eyes, his gaze was solemn. In a deep voice, he said, "The plunderer has left and won't be back for a while, don't worry."

Merlin nodded but there was a glint of confusion in his eyes. He did not understand what Wizard Mogan meant by "plunderer".

Wizard Mogan took a glance at Merlin and explained, "Plunderers are powerful Legendary Wizards who traverse the Void Zone in search for dimensions. If they find any dimension that contains an Elemental Origin, they'll not hesitate to help themselves. They'll refine the Elemental Origin and use it to consolidate their own Maxim. This type of Spell Caster is called a plunderer!"

"Plunder the Elemental Origins?"

Merlin was shocked. Although he had never heard of the term "plunderer", he had heard about Elemental Origins before. Back in the Kingdom of Blackmoon, he learned from some of the ancient books in the Dark Magic Region that the Elemental Origin was the foundation of a world.

Once the Elemental Origin was damaged, the elements in the entire world would descend into chaos and might even disappear. It was important to note that the basis of a Spell Caster consisted of Mind Power and Magic Power. While Mind Power could be exercised and improved individually, Magic Power had to be transformed from the elements.

If there were no elements, the world would turn into a void zone. Spell Casters would not be able to level-up, and no new Spell Casters could be born. This behavior of directly refining the Elemental Origin was akin to slaughtering the goose that lays the golden egg because it would destroy the very foundation of Spell Casters.

"Teacher Mogan, don't the plunderers know what it means to plunder the Elemental Origin? Without the Elemental Origin, the elements that form the most basic need of Spell Casters would cease to exist, and even new Spell Casters cannot be born!"

Merlin could hardly imagine that such a type of Spell Casters would exist, and worse, occupied one of the highest positions as Legendary Spell Casters.

At the same time, someone who was not a Legend would not be able to become a plunderer in the first place. An Elemental Origin was the foundation of a dimension, so any ordinary Great Wizard who tried to forcibly absorb it would be seriously injured by the Elemental Origin.

"Hehe, how would the plunderers not know the consequences of their actions? However, the Void Zone is simply too vast, and the number of dimensions is too numerous. Since the Spell Casters departed from the Glorious Land until now, it has been three thousand four hundred years but the dimensions that we've discovered is barely a drop in the ocean. We have also yet to properly explore the Void Zone. Probably, even the Great Arcane Wizards don't know the boundaries of the Void Zone, what more the number of dimensions.

"The vast expanse of the Void Zone, coupled with the endless number of dimensions, causes the plunderers to not show any remorse. They madly plunder the Elemental Origins of the dimensions and use it to consolidate their own Maxims. In fact, sometimes, if a plunderer doesn't find an unoccupied dimension, they would forcibly invade an occupied dimension. Even the Legends' Accord would not be able to stop those plunderers."

After Wizard Mogan's detailed explanation, Merlin gradually understood that the plunderers were unwelcomed in the Spell Caster world, and perhaps was a group which was "publicly vilified".

Nevertheless, the identity of the "plunderers" was those of Legendary Wizards. Moreover, due to their act of plundering the Elemental Origins, their speed of cultivation would be faster than ordinary Legendary Wizards. Thus, the plunderers' abilities were usually quite powerful.

The Legends' Accord was a contract without much binding force. It was not a forceful contract hence, it was unable to restrain those greedy plunderers.

Fortunately, plunderers consisted only a very small fraction among the Legendary Wizards. Otherwise, the entire Spell Caster world would have descended into chaos a long time ago. Most of the Legendary Wizards did not agree with the act of plundering the Elemental Origins and were appalled with acts of the plunderers.

The appearance of plunderers made Merlin feel that traversing the vast expanse of the Void Zone was not a smooth-sailing journey. Regardless of where he went, there were dangers waiting.

The Great Legendary Wizards had powers that were comparable to the gods. Not only did they fought with the gods in the dimensions but they also exiled them. Therefore, in the eyes of the Spell Casters, these Legendary Wizards were immensely powerful.

However, in the eyes of these Legendary Wizards, it was still far from enough. They needed a stronger power!

"Teacher Mogan, actually, how many levels of Legendary Wizards are there?"

Merlin asked curiously. His knowledge about Legendary Wizards was still half-baked, and only knew that they needed to consolidate a Maxim.

Wizard Mogan obviously regarded Merlin with favor because he would answer any question posed to him. This time was no exception. After a pause, he said, "There are also ranks between Legendary Wizards. An ordinary Legendary Wizard can only consolidate one Maxim. Moreover, the process of consolidating a Maxim generally begins at the weakest level, as a First-level Spell Caster. At that time, the foundation is laid. That means, for multiple-Elemental Wizards, they have a chance to consolidate multiple Maxims in the future.

"Of course, consolidating a Maxim is highly challenging. For example, a Four-Elemental Wizard should be able to consolidate four Maxims but this is just theoretical. In reality, many of the Legendary Wizards are Four- to Five-Elemental Spell Casters but only manage to consolidate a single Maxim.

"The more Maxims that are successfully consolidated, the more powerful the abilities of the Legendary Wizard will be. Furthermore, beyond ordinary Maxims, there are also ultimate Maxims such as the Flame Maxim. Upon consolidating an ultimate Maxim, the Wizard will be qualified to become an Honored Legend. In other words, the Legend of Flames! Another example would be the Legend of Darkness. Upon consolidating the ultimate Darkness Maxim, he became an Honored Legend and received the title of the Great Legend of Darkness!

"If your opponent had consolidated an ultimate Maxim, then regardless of how many Maxims you can consolidate, you would not be a worthy opponent to an Honored Legend! Of course, it's possible to consolidate two, three or even more ultimate Maxims. However, that's highly rare compared to an ordinary Legend. Merlin, as a Six-Elemental Spell Caster, you're a rare gem. Among the numerous Legends I've encountered, I've almost never met a Six-Elemental Spell Caster. Perhaps there might have been a few but it truly is a rarity. For a Six-Elemental Spell Caster, the cultivation process before becoming a Great Wizard is very arduous and leveling-up is tough. Some Spell Casters spend their entire lives pursuing it but still fail to become Great Wizards, not to mention Legends.

"However, Merlin, once you become a Great Wizard and your Six-Elemental spells fuse together, you would immediately become the topmost Great Wizard. If you become a Legend, there's hope for you to consolidate six Maxims and become the topmost Legend!"

Wizard Mogan stared at Merlin as he spoke, and his tone revealed a hint of excitement.

Merlin also finally understood why Wizard Mogan had selected him as his disciple. It was not because of any of his special Pandora Demon Abilities but his identity as a Six-Elemental Wizard.

When Merlin was weak and had not received any Pandora Demon Ability, he could count upon his identity as a Six-Elemental Spell Caster to crush other Spell Casters of the same level. However, ever since he received Pandora Demon Abilities, the powerful strength of the Pandora Demon Abilities had overshadowed his Six-Elemental spells, and rendered them almost useless.

Sometimes, Merlin even felt that he had made a mistake in constructing Six-Elemental spells.

Right now, however, it seemed like his identity as a Six-Elemental Spell Caster was the most precious of all!

Once he became a Great Wizard and his Six-Elemental spells fused together, he would immediately become the topmost Great Wizard. Furthermore, if he had the opportunity to become a Legend, he could even hope to consolidate six Maxims and become the topmost Legend.

This was the most important benefit of his identity as a Six-Elemental Spell Caster!

However, as Wizard Mogan mentioned, the early stages of cultivation for a Sixth-level Spell Caster was truly arduous. Even in this endless Void Zone and the countless dimensions, whoever had the confidence to become a Six-Elemental Spell Caster was no less than a prodigy among all the prodigies.

Not only was Merlin a Six-Elemental Spell Caster but he was already a Fifth-level Spell Caster. Moreover, the time he had spent cultivating spells so far had been extremely short, shorter than the time spent by an average Three-Elemental Spell Caster to become a Fifth-level Spell Caster. In this regard, Merlin was unique!

With such a talent, it was not surprising that Wizard Mogan was so diligent to accept Merlin as his disciple.

Looking at Merlin's contemplative expression, Wizard Mogan also said in a deep voice. "Merlin, don't be arrogant. Although Six-Elemental Spell Casters are very rare, you have to become a Great Wizard to truly demonstrate the true powers of a Six-Elemental Spell Caster! Right now, you're only a Fifth-level Spell Caster and still have a long way to go."

Merlin nodded. Naturally, he would not be so arrogant as to forget himself. He was currently lightyears away from becoming a Great Wizard, let alone a Legend.

"Oh right, Teacher Mogan, recently I'm thinking of cultivating Occult Mind Spells. I'm wondering if you know any powerful Occult Mind Spells?"

Previously, Merlin had been preparing to go to the Glorious Pavilion to find Occult Mind Spells but was delayed because of the plunderer and did not manage to go.

"Occult Mind Spells?"

Wizard Mogan frowned and said, "Merlin, you should be striving to construct Spell Models and become a Great Wizard as soon as you can. Even your two special Pandora Demon Abilities, you don't have to spend too much time cultivating them. As for Occult Mind Spells, they are even more unnecessary. While they are indeed powerful as well as mysterious and unpredictable, they require a large amount of Mind Power. Only those who spend most of their energy on cultivating Mind Powers would start to cultivate Occult Mind Spells. In some sense of the words, these Wizards aren't considered proper Spell Casters."

Upon hearing that Merlin wanted to learn Occult Mind Spells, Wizard Mogan felt that Merlin had his sights set too far and wide, and the skills he sought to cultivate were all over the place. In the end, it would only squander his energy.

After all, from his point of view, it was already challenging enough for a Six-Elemental Spell Caster to construct a spell and would require a huge amount of energy. Therefore, if Merlin was further distracted, then he would have a hard time achieving anything.