As the party in the First Hall drew to a close, Nicholas put away his books and prepared to leave the library, while several vice-chancellors and deans of First University were working in their respective offices to bury papers on paperwork.

When the moon is half-hidden behind the light veil-like mist, there is a weak breath of moonlight.

When the day is coming to an end.

A black butterfly fluttered its wings and flew off from the shore of Linzhong Lake.

A flash.

Another flash.

Suddenly disappeared into thin air.

Silently, without a ripple.

When it reappeared in this world, it was already tens of thousands of miles away, on a calm sea.

It fluttered, danced gracefully, and landed on a cyan, delicate finger.

"News from First University?" Captain Misty twisted the black wings of the butterfly in his hand.

The scales fell, turning into a strange symbol.

This is an ancient text commonly used by demons, weird, powerful, and can only be condensed by demonic energy. Legend has it that it is blessed by the true spirit who opens up everything.

Nikita took the captain's afternoon tea and watched it all with curiosity.

"I can feel your amazement. Captain Mist seemed to be in a very good mood, raised his eyelids, and glanced at the banshee next to him: "The whispers in your young heart are a little noisy in this room......"

Nikita's arm holding the plate trembled slightly, but she still bravely asked her doubts: "It...... It flew in from First University?"

"Bingo!" the captain snapped his fingers, his tone full of appreciation, "but there is no reward." ”

"This can't be!" Nikita's eyes widened and he was shocked, "First University's protective formation can isolate everything...... There's no way it's going to slip out of it!"

"Do you think it looks fragile...... So you can't break through the powerful guardian array of the First University?" the corners of the captain's mouth curled, obviously very satisfied with the incredible expression on the banshee's face: "But you have overlooked a very important principle...... There is no mutual growth, and it is difficult and easy to achieve each other. ”

This is a mantra from the Tao Sutra, and Nikita knows it.

But the meaning of the captain's words is difficult to decipher.

After all, every sentence in the Tao Sutra has always had seventeen or eighteen different translations.

The banshee looked blankly at the captain and blinked her clear red eyes.

Maybe it's because I've just received a piece of good news, or maybe it's just because I've just taken a bite of a delicious snack.

Captain Mist seemed to be in a very good mood, and patiently explained to the banshee:

"It cannot be denied that the Guardian Formation of the First University is the most powerful Guardian Formation in this world, or in this universe. ”

"Even to a certain extent, it can shield high-dimensional creatures from watching the school. ”

"But no matter what, most of the people this defensive array is dealing with are three-dimensional lifeforms...... Whether it's you, or those stupid people outside, although they are all 'murderous demons' in the mouths of wizards, they are nothing more than a nose and a mouth, three or five eyes, seven or eight legs...... I still can't get rid of the basic space-time concept of this universe. ”

"But this butterfly is different. ”

Captain Mist said, his fingertips twitching slightly.

The scales that had been fluttering gathered like a phantom and turned into a black butterfly again.

The butterfly seemed to have some memory of what had just happened, and flapped its wings vigorously, trying to move away from the cyan finger.

But all in vain.

No matter how hard it struggled, its thin legs were firmly attached to the captain's fingertips.

"Create life!" Nikita covered her mouth in horror.

Being able to build a life at your fingertips, even the most inconspicuous ant, is a remarkable achievement.

As far as the banshee knows, the senior professors and even the deans of First University don't have this ability.

Perhaps the existence of the legend beyond the great wizard and the great demon can understand some of the mysteries a little.

"No, no, no, it's still a little bit hot...... It's just a little bit of a trick between time and space. The captain modestly shook his index finger, happily watched the black butterfly swaying between his fingers, and asked gently, "Do you know the Cork snowflake?"

"The infinite length of a finite space constructed by the Great Wizard Cork is named because it looks like snowflakes. As a former top student at the First University, Nikita still remembers these basic concepts vividly: "Similarly, there is the triangle constructed by the great wizard Scherpinsky, and the area of the figure will tend to zero infinitely as it changes. ”

"Very good, if I teach at the first university, I will definitely add a few points to you. Captain Misty applauded lightly and said with a smile: "So are these constructions one-dimensional lines or two-dimensional planes? Just like the Sherpinsky triangle you just mentioned, it is obviously difficult to call it a two-dimensional figure, because it has almost no area left...... But it's very obvious that it's not a collection of one-dimensional lines. ”

"It's somewhere between one and two dimensions. Nikita seemed to return to the university class, with a hint of seriousness on her face that had not been seen for a long time: "Could it be that this butterfly is like this?"

"Very sharp little guy. The captain put his finger in front of the banshee and asked her to look at the black butterfly seriously: "It's not a flat ...... But infinitely close to a plane, it is a living organism between two and three dimensions. ”

"The First University's protective array can resist high-dimensional snooping and can block the invasion of demons, but it is difficult to eliminate these lifeforms that transcend ordinary concepts...... The bare-headed ascetics call this 'cognitive obstacle'. ”

Orange-red sunlight filtered through the narrow window and fell on the captain's desk.

A few rays of light overcame the obstacles and sprinkled between the wings of the butterfly.

Rainbow light flashed, and for a moment, Nikita thought that the little guy with flapping wings was nothing more than a painting.

"Does it have a name?" asked the banshee, looking obsessively at the tiny scales that flowed in the sunlight.

"Name?" Captain Misty finally fell into deep thought.

After a long time, he nodded and said, "Just call it a 2.5-dimensional butterfly." ”

A stiff smile hung on his face.

Faced with such a terrible name, Nikita had no idea how to continue the conversation.

"It's your pastry, enjoy. She stiffly shifted the subject and held up the plate in front of her.

"These pastries taste good," the captain picked up the last bite of the pastry on the plate with the jet-black armor of his fingertips, stuffed it into his mouth, sipped it, and nodded with satisfaction: "I seem to have tasted the mellow aroma of 'memory'." ”

"You're right," complimented the banshee, bowing her head, "these pastries are made by taking memories from aging, drying the brains, grinding them into powder, and beating them...... It also contains your favorite liver puree blood sauce. ”

Sure enough, everyone has their own value. The captain picked up the white silk on the plate, wiped his fingertips, and the corners of his mouth raised slightly: "Letting you be the cook on the ship should be one of the most correct decisions I have made this year." ”