"The Mind Heart can still be compressed?"

Merlin was stunned. Currently, his Mind Heart was almost at its limits and could no longer be compressed. If Merlin was able to further compress the Mind Heart, then his Mind Power would undergo a substantive enhancement. Perhaps his Seventh-level Mind Heart would be able to rival an average Ninth-level Spell Caster's Mind Power.

"That's right. Occult Mind Spells have a very high requirement for Mind Power. This is similar to the requirements of Spell Models for Spell Casters. The stronger the Mind Power, the more powerful the Occult Mind Spell that is released! Therefore, compressing the Mind Heart to accumulate more Mind Power is one of the persistent goals for Mind Power Masters. As for me, I've invented an excellent Occult Mind Spell that can compress the Mind Heart to extreme limits!"

Wizard Ossais appeared to be highly confident. After all, he was one of the top Mind Power Masters. The system of Mind Power Masters had not been perfected, and the types of Occult Mind Spells were relatively fewer.

Therefore, the top-of-the-line Occult Mind Spells had to be invented by the powerful Mind Power Masters, just like in the past when the Spell Caster system was first developed. All these developments were dependent on the most powerful masters to slowly perfect the system.

As one of the top Mind Power Masters, the Occult Mind Spells which he had invented were definitely also top of the line.

Seeing the anticipation in Merlin's gaze, Ossais gave a slight nod. He extended a pale white thumb, took out a piece of contract paper, and began to write down the contract.

Merlin looked through it. The general implication was that Merlin could not impart Wizard Ossais' Occult Mind Spells to others without his consent. This remained a burden in Wizard Ossais' heart because the Occult Mind Spells had been laboriously invented by himself. If not for Wizard Mogan's "compulsion", he would not have taught them to Merlin either.

Now, this contract was just to ensure that his Occult Mind Spells were not carelessly revealed to the outside world.

Ossais waved his hand, and the contract floated before Merlin. After reading through the contents of the contract, Merlin did not hesitate and signed it.

"Very well, Merlin, the Occult Mind Spell that I've invented to compress the Mind Heart is called Explosion Theory! Strictly speaking, it's not an Occult Mind Spell because it only compresses the Mind Heart to allow it to reach every Spell Caster's limits!"

Ossais began to explain Explosion Theory in detail. Basically, through the process of explosion and condensation, the Mind Heart was compressed repeatedly in order to squeeze out every ounce of space inside the Mind Heart.

These little ounces of space were like bubbles inside the Mind Heart, so through the process of explosion and condensation, they would be completed squeezed out. Thus, the Mind Heart could be compressed to its true limit.

This Occult Mind Spell put a glint in Merlin's eyes, though he knew that it was easier said than done. Exploding the Mind Heart was not an easy feat. If anything went wrong, it would not be able to be consolidated again.

Therefore, only a powerful Mind Power Master such as Ossais, who had reached a certain threshold of Mind Power, would dare to attempt such an Occult Mind Spell without fear of unable to reconsolidate the Mind Heart.

Subsequently, Ossais highlighted some of the critical points in Explosion Theory or rather the things to pay attention to as well as some tips and tricks that would ensure that the Mind Heart could be reconsolidated after the explosion.

Merlin memorized these tips and tricks in his heart, and began to attempt his first Mind Heart explosion. This was considered the top Occult Mind Spell, one that Wizard Ossais had spent decades of effort to create as well as tested personally countless times before it finally took shape. At the same time, Merlin was the first Spell Caster besides Wizard Ossais himself to cultivate Explosion Theory.

"Boom."

Merlin followed Wizard Ossais' method and violently detonated the Mind Heart. In the instant when the Mind Heart exploded, Merlin's consciousness blanked out completely. Inside his Awareness, a ferocious storm seemed to whip. Countless Mind Power was scattered around, which turned into waves of attacks that rippled in every direction.

Merlin's consciousness recovered quickly. However, after recovering, Merlin's face turned pale with pain. He had to endure tremendous pain and reconsolidate the Mind Heart according to Wizard Ossais' instructions.

This was the most critical premise of Explosion Theory. Just plain explosion alone without the ability to reconsolidate the Mind Heart was no different than suicide.

Ossais was watching Merlin closely. Despite his confidence that the Explosion Theory was completely flawless and free of error, Merlin was still the first Spell Caster besides himself to cultivate Explosion Theory. Thus, Merlin's success would indicate whether this Explosion Theory Occult Mind Spell was matured enough.

Soon, Merlin abided by Wizard Ossais' method and turned his Mind Power into a huge vortex. The vortex began to swirl wildly, and the previously scattered Mind Power swiftly entered the heart of the vortex.

The gravitational force of the mind vortex that was formed from the Mind Power grew stronger, and Merlin could feel that his consciousness had become distorted. He could clearly sense his Mind Power consolidating repeatedly until the Mind Heart was consolidated once again.

"Fuh…"

Merlin heaved a breath of relief and opened his eyes. A strange glint appeared in his eyes. "It's so amazing. I'm able to reconsolidate the Mind Heart. Moreover, based on my senses, I can feel that the Mind Heart has been condensed a little. Now, it can accommodate more Mind Power!"

Merlin was highly sensitive to his Mind Heart because previously, he had sensed that his Mind Power was fast approaching the limit of the Seventh-level Mind Heart, and could no longer be compressed. Right now, however, his Mind Power did not feel like it was at the limit. The Mind Heart had indeed been compressed a little, and the effects were obvious.

Furthermore, this was only Merlin's first practice of the Explosion Theory. As he continued to practice exploding and consolidating the Mind Heart again and again, the Mind Heart would finally be compressed to its limit until it could no longer be compressed.

This was the strength of Explosion Theory. Its greatest utility was to compress the Mind Heart and allow it to accommodate more Mind Power.

Seeing the satisfied expression on Merlin's face, Wizard Ossais smiled and said, "Merlin, what do you think? Explosion Theory is something, isn't it? This Occult Mind Spell of mine can basically compress the Mind Heart by half, thus, it can accommodate twice the amount of Mind Power. This is the top Occult Mind Spell!"

Merlin nodded. This Occult Mind Spell might only be a Supportive spell but its effect was quite good. It could double the capacity of the Mind Power, which was a highly difficult feat. This was because the greater the amount of Mind Power, the more powerful the Mind Power Master would be.

Thereafter, Merlin carefully practiced for a moment and principally mastered Explosion Theory. Then, he gazed at Ossais again. Occult Mind Spells were further divided into Supportive spells and Offensive spells.

Back when Damsy, Fury, and Giado jointly wielded the Mind Storm, it must have been an Offensive Occult Mind Spell. Since Merlin wanted to learn Occult Mind Spells, naturally, he would not miss the opportunity to learn Offensive Occult Mind Spells.

Seemingly reading Merlin's intentions, Ossais' voice dropped into a whisper. "Merlin, Explosion Theory is the first top Occult Mind Spell that I've taught you but it's not an Offensive Occult Mind Spell. It'll not immediately improve your abilities! After this, I'll teach you another top Offensive Occult Mind Spell!"

Merlin got excited and a little eager to see the top Offensive Occult Mind Spell described by Wizard Ossais. How strong was it?

"This is the top Offensive Occult Mind Spell that I've invented, called the Nine Hit Strike!"

Ossais' voice suddenly turned intermittent, and Merlin's expression gradually became solemn as he felt his entire being was about to suffocate. An invisible pressure began to envelop him.