Harry Potter and the Great Old Ones

After that, campus life returned to calm. Because Professor Sprout's Mandrake still had some time to mature, Tiera had to bear the identity of "Gilderoy Lockhart" and study in Hogwart.

Now I’m teaching a course on Defense Against the Dark Arts, which is a little difficult for Tiera——

It's not a teaching problem. With Tiera's knowledge base, it's no problem to fool through a few Defense Against the Dark Arts classes.

But Tiera never tires of the endless number of little wizards who come to him to "ask questions" after class -

Most of them came to him to ask for his autograph, and only a few of them came to him for the purpose of seeking knowledge.

But whether they came to ask for autographs or to ask questions, Tiera had to accept everyone who came in order to create a flattering personality. Even those students who asked questions, Tiera had to use the face of Gilderoy Lockhart.

Greasy said:

"Want an autograph?"

"Um...oh, no, no need..." a tall, slender, handsome, brown-haired fourth-year Hufflepuff boy said, "Professor Lockhart...I just have an idea that I want to ask you about in class today.

When you talked about the construction of altars in ritual magic, you talked about how to use ancient runes and Latin to construct ritual altars. But if we replace part of the Latin with arithmetic configurations... will it make the construction of the altar worse?

Make it easier?"

Tiera looked at the big boy in front of her with some surprise. She never expected that an education system like Hogwarts could produce such students who came up with innovations when they first came into contact with ritual magic.

"Yes, very good...Mr...Mr..."

"Digory, Professor." said the boy, "Cedric Diggory, Professor."

"Cedric?" Tiera looked at Cedric with some regret -

Smart, handsome, and judging from the original novel, he is an enthusiastic boy.

In the past, Tiera didn't have much impression when watching movies or reading novels. She only thought that Cedric was a tool man who changed his ways. All his good things were for the last Avada Kedavra.

In order to force Harry to embark on the path of the savior.

The so-called tragedy is to destroy beautiful things for others to see. Rowling understands the core of tragedy.

But now this tool man is standing in front of Tiera alive, and Tiera can't help but feel a lot of emotions.

"Yes, Cedric, you are very smart. In fact, you can only use a few simple ancient runes to build the ritual altar, and use arithmetic models for the rest." Tiera patiently answered his doubts.

"But why are the altar configurations in most rituals now written in ancient runes and Latin?" Cedric asked again.

"Because the error tolerance rate of the arithmetic model is too low." Tiera explained, "You use ancient runes and Latin to build an altar. If you write a wrong symbol or pronounce a spell wrong, it will be the most serious when you perform the ceremony.

The most likely consequence is that the ritual altar explodes, and even if the key symbols are not wrong, the ritual can still continue, but the effect will be slightly worse."

"But if you use an arithmetic model to construct a ritual, a tiny calculation error will lead to inevitable consequences. Take the devil summoning ritual as an example. Agatha Morey, the author of "Fifteenth-Century Demonology", because of the substitution in the calculation

A wrong symbol led to the summoning of a demon far beyond her expectation, triggering the infamous Harz Mountain Incident in the 16th century." Tiera said.

"From then on until 1840, the Ministry of Magic throughout Europe, including the British Ministry of Magic, classified the method of constructing ritual altars using arithmetic configurations as black magic equivalent to the three forbidden spells. Once it was discovered to be used,

Spread and learn, and you will immediately get a one-way ticket to Azkaban." Tiera said, "Even now, the book "Fifteenth Century Demonology" is still in the restricted book area of ​​Hogwarts.

Publicly teaching underage wizards how to use arithmetic configurations to build ritual altars would still be considered an irresponsible act by most wizards."

"Okay Professor, I understand." Then he asked some other questions, all of which were answered by Tiera.

"Thank you, Professor Lockhart, you are indeed a great wizard!" After all the questions were answered, Cedric bowed slightly and said, "Goodbye, Professor."

"Goodbye." Tiera responded graciously.

After Cedric left, Tiera waited in the Dark Arts Office for a while, then put on her coat and walked to the library.

"Hello, Mrs. Pince." Tiera looked at Gilderoy Lockhart's face and grabbed two books from the restricted book section of the Hogwarts library, then placed them on the table at the front desk of the library.

on, "I'd like to borrow these two books."

"Lo, Professor Lockhart!?" Mrs. Pince said a little flattered, and then picked up the two books on the table -

"'Fifteenth Century Demonology' and 'The Little Key of Solomon'?" Mrs. Pince asked in surprise, "Why did you borrow these two books?"

"You know, Mrs. Pince, this time Voldemort regained his power by summoning demons. Although I destroyed the ritual, it still caused extremely serious effects. This made me realize my shortcomings in this area, so I want to

I should complete this knowledge." Tiera said.

"You are so knowledgeable." Mrs. Pince admired, then took out a borrowed book, wrote "Fifteenth Century Demonology" and "Solomon's Little Key" in the blank space of the last line, and then pushed the book to

Tiera——

"Please sign here," said Mrs. Pince.

Tiera picked up the pen and wrote the name "Gilderoy Lockhart" in the blank space.

Mrs. Pince pulled the book back, then came back and looked at the signature of "Gilderoy Lockhart" carefully——

"Your signature... seems to be different from the previous one..." Mrs. Pince said hesitantly.

"My hand is injured." Tiera raised her right hand and waved——

There was a black mark on the palm of his right hand that looked like it had been left behind by a soldering iron. It was really the mark that the burning wand left on the palm of his hand in full view of everyone when Tiera was performing a show that day.

"Oh, my God!" Mrs. Pince exclaimed, "Your hand...isn't this the scar left on that day? Isn't it healed yet?"

"It can't be good." Tiera pretended to be sad and said, "My magic power is not enough to defeat the half-crazy Voldemort, so I had to use an ancient magic I got while exploring a ruins. By sacrificing my own wand,

In exchange for short-term powerful power..."

"This also left a permanent and indelible scar on my hand. The scar was too deep and has damaged my nerves. I am afraid that my right hand will not be as flexible as before," Tiera said.

"You are really great!" Mrs. Pince said with tears in her eyes.

"No, Mrs. Pince, it's nothing. For the peace and stability of the magic world, my sacrifice is nothing." Tiera said, picking up the two books from the table, "Then I will leave.

.”