Harry Potter: Reunion with the Enemy

It was late at night, and Hermione was still bent over the table, carefully studying the obscure tome. Ron was playing with the camel model he bought on his honeymoon. Ron tried to put the pen between the humps, while observing whether the camel model could still walk around on the desk with slow and graceful steps.

The book Hermione was trying to master was about advanced arithmetic and divination.

Arithmancy was once Hermione's favorite class at Hogwarts. Compared to the Divination class where Trelawney spent most of her time using crystal balls and tea leaves to exercise her imagination, Arithmancy was mainly about "using numbers to predict the future" and being able to touch upon things that would happen in the future through complex number tables.

As a discipline that requires both rigorous mathematical calculations and the need to explain and deduce phenomena through existing rules, arithmetic divination is also a course that must be learned by the profession of Gringotts Cursebreaker, because many treasures are hidden in ancient tombs or other historical sites equipped with ancient evil spells, poisonous spells and curses. Arithmetic divination can help predict the possibility of danger to a certain extent.

The Arithmetic Divination course at Hogwarts is an elective course starting from the third grade. After all, the content in the class will not be too in-depth. After Hermione confirmed that she would stay in school to teach and take on the work of a researcher, she still firmly chose the direction that she was most interested in.

"I didn't expect that Hogwarts would not start for another three days. Several of the books I wanted to borrow are in the restricted area. I can't wait to read them all." Hermione frowned among the pile of books, seeming to be very dissatisfied with the lack of rich content in the books.

Ron originally wanted to join Hermione's academic discussion by looking at the book, but the dense numbers and formulas on the book made him give up the temptation immediately. Ron shrugged: "It seems that you can't wait to leave your new husband."

"Arithmetic divination is indeed a wonderful subject. When I was in sixth grade, I used it to predict my future marriage. The person I predicted at the time was a young man with red hair. I think it was you."

"But what I learned at the time was limited. Later, when I wanted to deduce the results about Voldemort during the war, no matter how I calculated, it was unreasonable, so I temporarily put further research in this area on hold." Hermione blushed slightly and held up her chin with both hands.

Ron opened his mouth in surprise and said with satisfaction, "I knew it was fate." Not long after, Ron reacted, "What about Harry? Have you calculated it for him?"

Hermione clapped her hands nervously and replied hesitantly, "In fact, I used Arithmancy to deduce it for you and Harry after I calculated my own."

"So?" Ron's face was full of curiosity. After the entanglement between Harry and Ginny ended in separation, Ron never asked about his friend's love life again.

"Your profile does show me, but Harry..." Hermione said uncertainly.

Ron became more and more interested: "What was the result of your deduction at that time?"

Hermione frowned and said, "It seems to be a boy with light blond hair."

Ron was silent for a few seconds, a trace of surprise creeping onto his face. "As his good friend for so many years, I didn't find him to have this tendency. The girls Harry liked before, Cho Chang and Ginny, were also girls."

"So I think I still have a lot to learn about Numerology. Something must have gone wrong. So I thought I might not be the same as you..." Hermione slammed the book shut. "I still need to look up more literature, since I still have to continue exploring this research field."

Ron opened his arms and hugged Hermione, "It doesn't matter. Even if my deduction is wrong, I will always be with you."

"According to Professor Victor's teaching and the explanation in the textbook, there is nothing wrong with that." Hermione added, "And I think the profile of the boy with light blond hair is somewhat similar to that of the person."

"like what?"

"It's nothing. Harry has never lacked admirers and pursuers. I believe he will make his own choice." Hermione did not answer, but quickly tidied up the desk and hugged Ron.

Hermione will soon return to Hogwarts to teach, and with the time taken up by duty and literature research, she really doesn't have much time to spend with Ron recently. "We must hurry up and produce more results."

"Once you come up with something as amazing as Neville, you must help me use arithmetic to divine how to deal with difficult sponsors and the dignitaries who are trying every means to snatch VIP tickets." Ron rubbed his eyes and became depressed again when he mentioned his work content. "Then choose to take a day off on the day when you have the most trouble."

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Diagon Alley. Weasleys' Wizard Wheezes.

As always, bright colors lit up a corner of the street. Weasleys' Wizard Wheezes quickly resumed business after the war. As a well-known store that sells many prank and magic materials, the children packed the store.

George was taking care of business in the store. When he saw Ron craning his neck to peek outside the store, he immediately pushed through the crowd with a smile and came to his brother's side.

"Let's see who's here. The famous employee of the Department of Magical Sports and Physical Education - Ron Weasley, an excellent employee who was unwilling to give his brothers a discount on pre-match advertising."

Ron felt as if he had been stepped on when he heard this.

At this time, a silver-grey ghost-like Fred also slowly floated over. Unlike the ancient ghosts in Hogwarts, this Fred was made of a puff of easily dissipated smoke, but he was undoubtedly very alive. At this moment, he also smiled wickedly at Ron and joked, "Our dear brother seems to have grown a lot taller after getting married."

The children around looked at the silver-gray Fred with some curiosity. George pointed to the new product poster posted at the entrance of the store. "Instant Ghost Powder! A new product from Weasleys' Wizard Wheezes. It can extract characters from memory and generate a smoke-like figure! A good helper for chatting, entertaining, making you happy, and even letting him give you ideas to help you with your homework. As long as you have a smart friend in your memory! The validity period can be up to several hours!" George picked up the small bottle of silver powder on the shelf and introduced it to the children.

Ron turned his head away, as if afraid of being hurt and unwilling to look at Fred, who was only valid for a few hours.

"Are you really not going to consider giving your now unique brother a wonderful relative price? The Magic Tricks Shop now has three branches. If we can make a name for ourselves at the World Cup, we can even open branches all over the world." George winked mischievously.

Ron sighed and tried not to look at the suspicious scars on George's body. They might be the result of experiments on him to develop new products. When the "Instant Ghost Powder" was successfully developed, Mrs. Weasley hugged George and cried. After facing the pain, the understanding of happiness will be deeper.

"I will definitely help you get the lowest price within the legal range." Ron made way for the children beside him. "Originally, I was thinking about whether I should quit my job and help your store. After all, now that there are more branches, even if my mother takes time to help, it won't be enough."

George blinked, "Our little brother has his own career to pursue, right? He also has to support the career of the clever witch Hermione."

Fred, the powder ghost, circled over Ron's head and said, "We need an extra-large screen for the advertisement. I will also be at the advertisement bidding meeting in a week."

Ron raised his hand as if to pat Fred on the shoulder, but his hand only dispersed a cloud of silver-gray smoke. In the midst of the chaos, Fred grinned and said, "See you then."