When the sky had just turned bright, Roland was dragged out of bed by Nightingale – he remembered the last time this happened was when Nana was discovered by Tigu Pine to be a witch.

"What's going on? Did you find a new witch in town again?" he asked, rubbing his eyes.

"No, Your Highness!" Nightingale exclaimed excitedly, "Anna... Anna's ability has changed again!"

"Again?" Roland hadn't fully woken up yet. "Hasn't she already come of age?"

"It's a change again after coming of age. I've never seen such an amazing form of magic, it's almost like a physical entity." Nightingale brought over the washbasin. "Scroll and Wendy haven't heard of anything like this either. You should go and take a look, everyone is waiting for you in the office!"

Roland casually washed his face, put on his clothes, and followed Nightingale to the second floor. As he walked into the office, eleven witches immediately focused their attention on him. Anna's eyes were a little swollen, as if she hadn't slept well all night.

"Can someone tell me, what exactly happened?"

Nightingale was the first to speak, "When I passed by Anna's room this morning, I saw her sleeping at her desk, with a pile of iron lumps on the table. I was about to go over and wake her up when I realized that the magic in her body had turned into..." She paused for a moment, seemingly trying to figure out how to describe it, "It turned into a fixed shape, like a constantly rotating cube."

"Cube?" Roland walked up to Anna and examined her carefully – apart from looking a little tired, he couldn't see anything different about her. Then he noticed a section of a cylinder placed on the table. The material seemed to be pig iron, and the smooth, gray-white surface and the flat cut at the top made him think he was seeing things. "This is..."

"Anna made it," Nightingale said, "with her new ability. After a witch awakens, magic gathers in her body, initially as thin as mist, and after a few years it will slowly turn into a cloud of gaseous vortexes of different colors, for example, Wendy's is white, Leaf's is green... and Anna's magic used to be very large, and after adulthood, it condensed a lot, appearing dark green, but now, the magic in her body is only the size of a fist, as solid as a rock, and completely opaque." She picked up a quill from the desk and roughly sketched it out, "It's about like this."

Although Nightingale's drawing skills were terrible, Roland could still make out that it was a cube.

He looked at Anna, "What happened last night?"

Anna recounted her experience. When she finished speaking, the other witches still looked blank, not understanding at all what she meant by small spheres, vibrations, connections, and changes in ability.

Only Roland felt a slight stirring in his heart.

In his imagination, magic was a kind of energy, and witches were the terminals that released it. The effects of magic conversion were endless, but which effect it ultimately formed depended on the witch controlling it, or, to go a step further, on the witch's thoughts.

If his guess was correct, thoughts could have a profound impact on abilities.

Simply put, someone who has never seen an airplane would find it hard to imagine that a huge iron bird could fly in the sky; someone who has never seen the universe would naturally not know how vast this world is. The height of thought and the breadth of knowledge limit one's use of magic – every step forward in understanding the essence of the world will bring long strides in technological progress, so could it be the same for witches' abilities, that the deeper their understanding of the world, the closer the effects of their magic are to the source?

"Let me see your new ability," Roland said curiously.

Anna stretched out her finger, and a ball of black flame appeared out of nowhere at her fingertip. It looked no different from ordinary flames, except that it didn't emit light.

"Can your black fire change shape at will?"

Anna nodded, controlling it to float down onto the table. Soon, the black fire, which was in the shape of a natural flame, suddenly turned into a cube. Before everyone could react, the cube expanded into a black cloth, almost covering the entire table. Then it contracted towards the center, gradually turning into an upright straight line. Roland couldn't help but reach out and touch it, and found that this black line, as thin as a hair, was motionless – this was simply unbelievable, considering that

Even something as hard as steel can be easily bent with a finger when pulled into a thin thread. This is determined by the flexibility of the object, and absolute rigidity does not exist.

"Can it be thinner?"

"Yes, but then you won't be able to touch it anymore," Anna said, "otherwise it will cut you."

"What about the temperature, can you control that at will too?"

"Yes, and compared to green fire, I can make it produce different temperatures in different parts."

Roland understood a little of what Nightingale meant by being like a physical entity. Compared to the warm, water-like green fire, her current ability had taken shape. It wasn't appropriate to describe it as a flame – after Anna accepted the view that all things in the world were composed of microscopic particles, the perception of flame generating temperature also broke through to a new stage where particle movement generates temperature. What was certain was that she wasn't controlling particles, just like what she controlled before wasn't fire... Whether it was the initially seemingly ordinary flame, or the green fire and black flame after adulthood, they were all manifestations of magic.

Although both were converting magic into heat, the effects were completely different.

A true genius, Roland couldn't help but sigh. Besides genius, he couldn't think of a more suitable word. After learning new knowledge that night, she was able to immediately understand it and apply it to her ability. This way of thinking and absorption ability could only be possessed by someone with great talent.

Anna's changes also made him more interested in exploring the truth of this world.

It was a pity that he couldn't possess magic, Roland thought, this was perhaps the greatest regret after his transmigration. After all, most people harbored a superhero dream, to accidentally obtain incredible power, and from then on embark on a different path, how wonderful that would be.

"I think I know the reason for Anna's ability change," he said to the witches, putting away the regret in his heart.

"What is it?" everyone asked.

"Learning."

"Lea...rning?" Scroll muttered, "Are you talking about yesterday's lesson?"

"Exactly," Roland briefly explained his conjecture, "Knowledge helps you improve your abilities, and even produce leapfrog changes."

"Can I... too?" Mystery Moon asked timidly.

"Of course," Roland patted her on the shoulder. If there weren't a limited number of steam engines, and if he couldn't find rubber to make wires, the pile of powerful magnets she enchanted would probably have come in handy long ago.

Originally, Roland's purpose in teaching was just to impart his knowledge to Scroll, to avoid forgetting more and more, but now he unexpectedly discovered that learning knowledge could also have the effect of amplifying abilities, so it became very necessary to have all the witches attend classes together.

Of course, he also understood that not everyone possessed Anna's outstanding talent. As for Nightingale, who could fall asleep during class, he didn't hold out any hope. From memorizing to understanding, and from understanding to applying, there were countless gaps in between. He didn't know how many people would ultimately be able to apply the knowledge they had comprehended to their abilities.

"You didn't sleep well last night," Roland said to Anna, "Go get some sleep later. I'll test your new ability properly in a couple of days."

"Okay." Anna nodded earnestly.

"As for you," he looked at the other witches, "From today onwards, every Monday to Friday after dinner, gather in the reception room, starting with learning to write and recognize characters. Scroll, you'll be their first teacher."