After Clare wiped out a lot of food, he finally had enough to eat and drink. Several gentlemen of mercury balance were making speeches on the front floor. Lena listened a little, and then brought Clare, who wanted to eat and drink, to the terrace.

The terrace is very spacious. Several couples are nestling in this relatively dark place. Some mages are discussing academic issues in a low voice. Lena and Claire are a little out of place.

Clare leans against the railing. The wind is cool at night. Lena takes off her coat and puts it on her shoulder.

"Thank you."

Clare whispered, quietly pulling the clothes, there is still Lena's temperature on the coat, so that the early winter wind is no longer cold.

In the dark terrace, you can't see other people's faces clearly. Only the white part of the clothes is shimmering. Compared with the lively banquet hall, it seems more quiet here.

"You see, the men's shirts and ties are brighter than the women's skirts."

Lena said suddenly, which made Claire tilt her head and look at the other people on the terrace. Except those lovers who are biting their ears, Claire blushed. She did notice that the white shirt of the male mage gave off a faint light at night, which was very special.

"Oh, really."

Clare had never noticed it before, and it was only when Lena reminded her that she suddenly noticed it.

"Do you know why?"

Asked Lena, smiling.

"Why?"

Claire thought for a moment, but didn't know why.

"Because of the washing powder."

He replied that, seeing that Claire didn't quite understand, Lena added an explanation.

"Most of the washing powders produced on the mainland have something called fluorescent whitening agent. The characteristic of this substance is that it emits fluorescence under ultraviolet light, which can make clothes look whiter."

Glancing at Claire beside him, Lena continued.

"In fact, fluorescent substances exist in nature. Some mosses, mushrooms and marine organisms emit light. The essence of this phenomenon is that the electrons in the substance are excited by the energy of ultraviolet rays, and produce transitions, thus releasing light. This is the hypothesis I put forward in the afternoon."

"Well, is that so?"

To be honest, Claire doesn't quite understand Lena's research. She only knows that it is very important and has epoch-making significance.

But after an explanation by Lena, she seems to understand a lot of seemingly abstruse research. In fact, it is about the common things around us. Magic is not a castle in the air, but a towering tower with down-to-earth feet.

And Lena, at the top of the tower.

This makes Claire happy, but also a little sad.

Whether they are themselves or others in the new moon college, they are too far away from Lena. This is a distance that they can't catch up with in their whole life. As time goes by, they may be just a passer-by in Lena's long life as a high-level mage.

"When stars - like our sun - are born and die, they emit a lot of ultraviolet radiation, so if we can see the night sky from an ultraviolet perspective, almost all stars will disappear."

Lena said slowly, and his words made Claire look up into the clear night sky.

Clare couldn't imagine what it would be like when all the stars died out.

"What's left in the air that night?"

Claire turned his eyes to Lena. Almost a second before, Lena's eyes just shifted from Claire to the night sky.

"At that time, all we could see was the heroic life and death of the stars, just like these gentlemen in formal dresses and ladies in long skirts dancing in the dim light."

Claire sees Lena's side face, attentive and serious. He seems to be thinking about something. Claire has seen this expression many times, but today, for the first time, she feels how attractive such a Lena is.

"It was a lonely scene."

Clare sighed.

"In fact, even the stars we see now may just be the reflection of the past. Before some light reaches our eyes, their own stars have disappeared. Even the mage is too small in the scale of the universe."

Lena shrugged. He turned his head and found that Claire was just looking at himself. There seemed to be a little ripple in his violet eyes.

"But, Lena, you are already a high-level mage. Maybe you will become a new legendary mage. You can live for hundreds of years, and I, everyone in crescent college, may leave early."

Claire avoided Lena's eyes.

"Claire, do you think time is absolute?"

"Ah?"

Claire couldn't understand it again. What Lena said seemed stupid, but when he thought about it, he seemed to have another intention."For the high-level mages who have lived for hundreds of years, maybe a few years is equivalent to a year in their perception. The life of ordinary people may be just a long experimental cycle. Do you think so?"

In the face of Lena's question, Claire nodded.

"Well, you try to imagine a creature whose life span is as long as tens of millions of years. For them, even a high-level mage is just an ant in the long river of time. There is another creature whose life span may be only a few minutes. When people sigh inadvertently, this creature has already passed its life."

It took a long time for Claire to look up again.

"Short and long, only you can understand, in the perspective of others, there is no way to evaluate?"

Then she seemed to understand something, and her eyes turned red.

"Yes, there is no difference between the long life of high-level mages and that of ordinary human beings. If only the length is spent in emptiness, then there is no significance."

Said Lena, smiling.

"It's like sitting in front of the stove for ten minutes in this cold winter, but it feels like an hour has passed. While you and I stand here for an hour, it seems like only ten minutes have passed. Time is relatively speaking. Long and meaningless life and short but shining time have different meanings for everyone."

"Well."

Claire nodded. She had understood what Lena meant. This was a problem she had been worried about and couldn't solve. But Lena told her the answer.

"So, would you like to spend the rest of your time with me?"

Lena took Claire's hand lightly.

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