Although Catherine was depressed, she was not too angry with her teacher about this matter. As Griggs said, Quisling was more protective of her. But after the female mage knew the truth, she felt a little unhappy in her heart.

However, Catherine also understands that it is impossible for the "Kingdom Secret" to let her know the inside story in advance. And she would rather know as little about these state secrets as possible. That little personal agreement with His Majesty the King had already caused her a series of troubles, not to mention the big secret in which the head of the Royal Academy was involved?

Catherine walked out of the obelisk with the Rubik's Cube of Souls. She knew that this so-called obelisk was not the laboratory of Master Griggs at all. It's probably based on some common sense of architecture that the female mage imagined, so there's nothing in it. It seems that if you want to see the laboratory of the real alchemist Grand Karcist, I am afraid that you can only do it when you return to the royal city.

Catherine didn't bother too much with Griggs' lab, her mind was already drawn to the Soul Cube. This thing looks amazing. It has no traces of gaps and patchwork, and it is so complete that it can even be described as perfect.

The Soul Cube is a regular hexahedron with exceptionally precise proportions. The six sides shimmer alternately, emitting a soft white light. When the white light comes on, you can see the little rabbit that the demon king encapsulated inside has become. The Demon King slapped the Soul Cube, his face wide open with hatred.

Catherine couldn't hear what he was saying, but most of the time she was venting her frustration. The female mage stared at the Soul Cube for a while, and suddenly shook it vigorously on a whim. The little rabbit shattered and turned into a chaotic mass of flames, occasionally in the form of birds. However, it was quickly regrouped and turned back into a deflated rabbit.

This time the little rabbit sat in the hexahedron with his head down, and he seemed to have suffered a lot and was in a state of malaise. Catherine seemed to have an understanding, and she shook the Soul Cube vigorously again. The little rabbit in the Rubik's Cube shattered suddenly, turning into a ball of flame and rolling in the hexahedron.

After waiting for a while, the flame slowly calmed down. Re-condensed into a rabbit. The little rabbit lay on the ground, and he didn't even have the strength to sit. Catherine is convinced that she has found a way to effectively torture His Majesty the Demon King, who is sealed in the Soul Cube.

The female mage couldn't help but have a thought, if she kept shaking like this, could she destroy the demon king?

Catherine stared at the Rubik's Cube in her hand, the great temptation in her mind urging her to do it quickly. However, as the embodiment of reason, Catherine did not act immediately. She closed her eyes and took two deep breaths, driving the thought of destroying the Demon King out of her head.

The female mage began to think logically.

"If the power of the Soul Cube is really so great, so huge that it can easily destroy the powerful soul sealed in it, then why didn't Master Griggs talk about it at all? for future research.

Of course. Master Griggs also hopes that I can find a way to infuse the Soul Cube with soul energy. Then it would be possible for me and him to reconnect in the future.

However, the Soul Cube needs soul energy to drive, where does the soul energy come from? This Great Devil was originally a powerful soul, and after he devoured the soul of the immortal bird, he should now be full of energy. If you destroy the Demon King in the Soul Cube. Is it possible to get a huge amount of energy?

But can these energies really be used smoothly? Will they overflow? Is it possible to explode? The reason why the undead bird is dangerous is because her energy is so huge that it will explode when it is born.

Therefore, the strength of the Soul Cube must be investigated first, so what exactly is the Soul Cube? If you don't understand how it exists, maybe you shouldn't use it too violently. ”

Catherine thought and observed the Soul Cube, and the little rabbit inside finally recovered and got up from the ground. He walked over to the inner wall of the hexahedron and pointed at the female mage, grunting as if he was not knowing what he was saying.

Catherine saw it. The corners of his mouth were raised maliciously, and he was about to shake the Rubik's Cube with a gesture. This frightened the Demon King, and the Great Devil immediately desperately made a gesture to stop. In a hurry, he burst out of his claws and wrote a series of flame letters in the air.

These flame fonts don't stay around for long. After a second or two, it was gone. But the Demon King had expected it, and he kept writing the same sentences, giving Catherine enough time to read.

Catherine looked at it for a moment before she could read what the Demon King had written, for all the words were as if they were in a mirror, left and right.

The meaning of the Demon King was very simple, he wrote: "You don't shake, we make a deal." ”

"Shaking the Soul Rubik's Cube will really cause harm to the Demon King, at least it will make him painful. Catherine pondered in her mind for a few seconds, and said, "What do you have to trade with me?"

The Demon King immediately wrote: "Soul mysteries. ”

Catherine smiled and shook her head. It's not that she doesn't want to know the mysteries of the soul, it's just that this deal doesn't make any difference.

First of all, mysteries are not easy to learn and understand.

Secondly, Catherine's future goal is to return to the surface, and the mystery of the soul may not be of much direct help to her future journey to the underworld.

And the most important point is that she doesn't believe in the Demon King at all. This big devil is not his own teacher, and most of them will not teach himself sincerely.

So Catherine shook her head dissatisfied.

The Demon King rolled his eyes and wrote, "Magic, fire magic." ”

This proposition is truly heartwarming. Catherine is a magician and naturally has a penchant for magic. She almost nodded, but suddenly shook her head disapprovingly.

Magic is not the more you learn, the better, but the magic that can be performed smoothly is good magic. Catherine's years of adventure had taught her what kind of magic was the most useful. She knew that she wasn't a magical genius, and that her future achievements in magic couldn't be too high.

Besides, can the magic system of the devils be the same as the magic system of humans today? Maybe you won't be able to learn it at all, or you may not be able to put it into practice if you do.

So it's just a good idea.

Catherine's second shake of the head made the Demon King a little embarrassed, and he thought for a full ten seconds this time before he wrote, "The way back to the surface world." ”

This is definitely the answer that has worked hard, and Catherine is thrilled.