Harry Potter: A Certain Ancient Rune Professor of Hogwarts

1st September.

Inauguration time.

A lazy man like Felix, without a doubt, continued to use floo powder to reach the Deputy Headmaster's office, where he emerged from the fireplace in a bright green robe, his hair neatly groomed, and carrying a small suitcase.

"Professor McGonagall." Felix greeted her with a smile on his face.

Professor McGonagall is busy sorting out events for the day; she is responsible for the annual opening dinner, and it is arguably one of her busiest days of the year.

"Oh, thank goodness you're here at last."

"Is something wrong?" Felix asked.

"I need you to do some work for me."

"With pleasure, ma'am," Felix spoke with elegance.

Professor McGonagall handed him a series of jobs and left in a huff, muttering things like, "Dumbledore never cares about this ... I'm on my own ...". She seemed to have a strong opinion about the headmaster.

Felix looked at the parchment in his hand with interest, "Let's see, the first job, decorating the Great Hall?"

The Great Hall ( Dining Hall ).

Felix waved his wand and placed decorations around the ceiling, arranging the four long tables and spacing out each chair to perfection.

Then came the weather at the top of the great hall.

"Honestly, I've wanted to play with this for a long time," Felix muttered, waving his wand.

Above the great hall, the original high noon weather suddenly became cloudy, with thick black clouds pressing ever closer as if they were going to stick themselves firmly in the sky the next moment.

Then, Felix continued to wave his wand, and the dense black clouds dispersed, revealing a large, miserable green glow from the sky, making the entire auditorium look like a cursed place ...

"Yah-hoo." Felix felt so happy he created a big viper, which opened its bloody maw through the green light, and something come out of its mouth, a miserable green figure twisted and formed, looking and acting like a certain professor.

"Is this what you think of the professor who has taught you for seven years, Felix?" As Felix was having a great time, a hollow voice suddenly surfaced.

Felix turned around to see his Potions professor and head of the house, Snape, appearing like a ghost with his arms waving.

Snape's face looked expressionless, his eyes unswayed by emotion. He spewed venom slowly and deliberately, "Are you expressing your displeasure with me? Or the three years after graduation filled your head with inappropriate muggle thoughts and made you so arrogant and cocky that you've lost your manners?"

" Cough...cough...!" Felix felt a bit embarrassed to have been caught red-handed in the middle of the fun!

Even more embarrassing is that the long snake above his head poked its head down and the miserable green professor in its mouth was wiggling and swaying ...

With a wave of his wand, Felix turned the long snake into nothingness. He quickly adjusted his expression as if he had just seen Professor Snape, first with a look of surprise, then quickly stepping forward and greeting Snape with utmost courtesy.

"Professor, your magic has grown steadily in three years."

Snape looked him over expressionlessly and mocked him in a rhythmic tone, "Three years has opened my eyes, but I would have thought you were a stupid lion if I hadn't taught you."

Felix gave an 'embarrassed' look, his eyes darted away in 'embarrassment' and suddenly looked behind Snape in 'surprise', " Professor McGonagall, when did you get here?"

"

Startled, Snape turns around quickly to find the hallway is empty.

Turning back, he found Felix with a confused look on his face, "Huh? Did I just make a mistake?"

Snape is so angry he couldn't speak.

There you go once again.

The boy always found an excuse to get away with it since he was in school, gagging and talking nonsense, but Snape knew him well enough to know how dangerous this boy could be.

In fact, he had just left the Headmaster's office this morning after a big fight with Dumbledore when he found out that Felix had come to teach at Hogwarts.

Snape approached quietly and said in a volume that only two people could hear, "Felix Hap-"

"You can call me Felix, Professor!" Felix interjected.

Snape: "..."

Again! Always interrupting, always interrupting his speech!

But who told Snape to speak slowly and with a musical aria? The others may have been afraid to interrupt because of Snape's oppressive demeanour, but Felix knew him well enough!

So well that he knew his deepest secrets!

Snape raised his voice: "Felix, I don't care what you're doing here at Hogwarts, but I'm going to keep an eye on you. If you're going to use the students at Hogwarts to promote some of your dangerous ideas ..."

"I see you've read my work too, Professor, what an honour!"

Snape is at a loss for words.

"Professor McGonagall! What are you doing here?" Felix suddenly turned his head to the side and spoke.

"Don't be a smart ass!" Snape said angrily, and then he felt someone approaching quickly behind him.

Emmm this time it's really true ... Felix quietly gestured to his back and before Snape could turn around, he heard Professor McGonagall approaching with a stern and impatient tone.

"Professor Snape, you have come just in time, I have something to discuss with you."

Professor Snape was then dragged away by McGonagall, and Felix made the gesture of goodbye, prompting Snape to give him a fierce glare.

"Looks like the Professor has a strong opinion of me~" muttered Felix, "I just threatened you once, it's been a few years, look how much he remembers that grudge, shame on him."

Well, Felix did threaten Snape, not exactly once, but for seven years during their time at school.

That's another long story.

Anyway, Felix continued to tidy up the great hall, not daring to play anymore this time. Waving his wand, he turned the sky above the great hall into a bright starry sky. He deliberately enlarged and brought some stars closer together, a full moon as bright as a disk, crimson Mars as red as a furnace, and a yellow-brown Saturn surrounded by a ring of broken stars. ... In the distance there were brighter, smaller stars, constantly shining and twinkling, decorating the great hall beautifully.

"Excellent charm!" A shrill voice appeared and Felix glanced back up and then lowered his head.

He smiled, "Hello, Professor Flitwick!"

"Oh! Felix!" Professor Flitwick looked thrilled, but in fact, he looked like he is going to faint.

"A talented Hogwarts graduate returns to school! How wonderful! I still remember your brilliant performance on the NEWTs charms test, perfect, perfect!"

Professor Flitwick looked thrilled, despite his small stature, he is affectionate and had no prejudice against the houses.

"It's good to see you, Professor!"