HP: Altair Black. Son of Asmodeus

Altair was on his way back to the Ravenclaw tower, his mind replaying the conversation he had with Lavender the night before.

'My eyes shone after I lost my virginity... My eyes are purple, an unnatural color. According to Narcissa, I got them from my father. What does it mean? Asmodeus... a demon, I..., am I not human? If my father is a demon, how did my mother meet him? Was it He-Who-Must-Not-Be-Named? Agh!, couldn't I have been reborn as an ordinary muggle-born child?'

He was so lost in his thoughts that he didn't notice the fluttering cape in front of him.

"Walking without the school robe? Five points from Ravenclaw," a shrill voice startled him.

Severus Snape. He let his thoughts surface superficially: 'Seriously, get a cunt. Lily Evans is not the only woman that exists'. Altair marveled as he watched his professor's face transform into an annoyed grimace. 'Well, who told you that reading students minds is allowed, bastard?' This time he raised his shields to prevent him from seeing anything. He didn't want to draw attention when he would faint after a couple of spells.

"Fifty points from Ravenclaw for your insolence! And detention for the rest of the month!" Snape shouted loudly.

"insolence, Professor?" Snape remained silent as he looked him in the eyes. His face was stony, you wouldn't even notice he had made a slip deducting points if you didn't know him as a master of Legilimency.

'But seriously, Lily Evans makes him forget even where he is. Ahh, I wonder if Lav loves me as much as Snape loves Professor Evans'.

"It's seven in the morning, Mr. Asmodeus", he spat his last name. "The curfew starts at ten at night and ends at seven-thirty in the morning. So, did you wander around the castle looking for a secret room to give you more power? I couldn't blame you, with that pathetic magic of you..." his voice became silky, tinged with sarcasm. "You won't find help from the castle, Mr. Asmodeus. You would do everyone a favor if you took your things and left the castle. The magical world once and for all." He ended up with his face just inches from Altair's.

It wasn't the first time he had heard something similar. He grew up with the Malfoys, always hearing how much of a waste of space he was.

"I lost track of time while I was with my girlfriend, professor," he replied, wanting to score a small victory by rubbing his love life in his face.

"Ah, yes... the Brown girl, blonde and stupid. She is still too much for you. It doesn't matter if you find someone willing, you should avoid spreading your seed all over the castle. Even a dimwit like Miss Brown can do it better than you".

"I know, maybe someone like Potter?" Altair watched his face flush with anger as soon as he heard the surname. Although Snape avoided harassing the Potters in the hope of gaining Lily's favor, it didn't mean he liked them. "I would appreciate not receiving romantic advice from a forty-year-old virgin." He watched Snape's hand tighten around what he assumed would be his wand.

He took the pocket knife he was carrying. He wouldn't win a magic duel, especially against someone like Snape, he knew that. But at this distance he would have the chance to stab him in the neck before he had the opportunity to cast a spell on him.

"Mr. Asmodeus, Professor Snape". A pleasant female voice interrupted their contest of glances. A woman of around forty years old, but who looked fifteen years younger, interrupted them.

Her face was thin and graceful. It did not lose in appearance and elegance to any pure-blooded lady. Her aunt Narcissa had to grudgingly admit that she would be a perfect lady if it weren't for her blood status.

Her hair was a deep red compared to the Weasleys' orange-red, her lips were thin, and her beautiful green eyes became the center of attention wherever she went.

She was of average height, around one meter seventy. Her breasts and her buttocks were noticeable even under the tunic that covered her body.

She was beautiful, a MILF in every sense of the word. But Altair did not look at her with desire at that moment. He considered her attractive without a doubt and she was part of his fantasies, but he was not a pervert who would get an erection at the sight of her in her witch's robe.The grassy hair man in other hand..."Lily—" began Snape, with an incredibly soft voice. Not the silky one he used to intimidate, but loving and with a hint of desire.

"Professor Evans," she corrected. Giving him a polite smile. Without acknowledging his tone. "I will escort Altair to his common room, and he will serve the detentions with me. Will that be a problem, Professor Snape?"

Snape looked as if he had swallowed a lemon, especially when she called the boy by his name. Even so, he left him alone while he tried to talk to Lily.

He was brutally ignored, again.

Lily and Altair began to walk towards the Ravenclaw tower.

"Normally, you don't usually respond to other people's comments. Is there something bothering you today?" The redhead asked sweetly. It was something she had always done since she met him. She treated him like a loving aunt.

Lily wasn't lying, any other day he would simply lower his head while accepting the punishment, but today, a small flame ignited in his stomach. There was anger, the anger that accumulates over the years.

"I don't know, his words affected me more today." He replied sincerely, hoping that his demonic heritage, if it existed, wouldn't turn him into a beast full of rage. Lust is fine, fuck is awesome. But he doesn't want to live angry for the rest of his life.

He heard a soft laugh beside him as Lily affectionately ruffled his hair, before pulling her hand away when she realized she was ruffling the hair of an nineteen-year-old young adult. 'It's strange, she always treated me well, even considering who my mother is. In fact, it's as if she treated me well because of her.'

"It's normal, after all. He offended Miss Brown," she replied conspiratorially, raising her eyebrows playfully. "By the way... Do you know about magical contraceptive methods?" she asked with some concern, a valid one. The Malfoys didn't consider it appropriate to inform them, and Hogwarts didn't provide any information on the matter either.

Most ancient purebloods consider sexual relations as a duty rather than something to obtain pleasure from.

Idiots. He had seen how Lucius's sexual desire was nonexistent. Narcissa, on the other hand, had plastic dildos of different thicknesses and sizes. Some were mundane and others were magical. Altair remembered that toy that looked like an octopus, with its tentacles ending in the shape of dicks.

"Professor?" Altair wasn't sure he wanted to have "the talk" in the middle of the hallway. At nineteen, it was a bit late and unnecessary.

"Madame Pomfrey gives out potions for free; there are for men and women." The contraceptive potion for men, which tastes disgusting, by the way, makes men stop producing sperm, literally; it's a bit weird and painful for some..." Lily seemed to think deeply about something unpleasant: "The potion for women prevents their period and helps with any pain they might have after having sex. Ah, and it tastes like strawberry smoothie". 'That seemed like a bit of an unbalanced deal. More than a bit actually,' Altair thought. "Both work at one hundred percent efficiency, it's only necessary for one of them to take a potion each month."

"Lavender will take it..." he said aloud.

"Are you already?" The teacher's voice was surprised and a little sad. 'My poor Harley', the teacher thought sadly.

"We've arrived!" Altair avoided answering as they approached the door with the eagle-shaped knocker that posed riddles.

"What mountain was the tallest before Mount Everest was discovered?" they heard the Sphinx say.

"The Mount Everest," the professor replied almost immediately. At Altair's slightly surprised look, she replied: "My best friend was a Ravenclaw, Marlene McKinnon. She was prefect of her house. I used to visit her in the common room, it's the largest at Hogwarts", she said before turning around and whispering in his ear: "Don't get into trouble, Mr. Asmodeus, and avoid stabbing castle staff. Even if he is an idiot like Snape". She spoke with a little venom in her voice when she mentioned the potions professor.

"Professor, you and Snape..." He paused. Unsure. It wasn't his place to meddle in other people's relationships. "Forget it, please".

"Snape did unforgivable things. I wouldn't consider speaking to him again even in ten thousand lives". she said before starting to go down the stairs.

Does she know that it was Snape who delivered the prophecy? Simply calling her "mudblood" didn't seem like an unforgivable thing.

Altair dismissed his thoughts as he entered the common room. The drama among the professors, although interesting, was not a priority.

'I'm stronger', he thought, 'at least according to Lavender'.

Her eyes shone last night. The relationship between that glow and his increase in power was undefined, for the moment.

Initially, Altair was worried about having "stolen" Lavender's magical power.

"I don't feel bad, well, my little bunny hurts a bit, but I'm sure it's normal," she replied when he expressed his insecurities. She didn't feel weaker.

"Either I didn't steal any of his magic or the amount I took was so insignificant that she didn't feel it."

Altair moved towards the sphere that occupied a place next to the statue of Rowena Ravenclaw.

It was a device used to quantify magical power. It measured it in UL (Lumus Units) based on the magic that an average wizard used in the most basic spell "Lumus."

Actually, the original unit was "Evans," the last name of Professor Lily. Just like Daniel Gabriel Fahrenheit, Alessandro Volta, or James Watt, Lily wanted to leave her name in the books of magic.

It was a spit in the face for the purebloods, one they didn't take well. The Ministry of Magic took the discovery and took half of the patent. They changed the name of the unit created by Lily.

A Muggle-born, even if she was the mother of the Boy-Who-Lived, was not so respected in magical Britain. Not even her ex-husband offered any kind of help. She only managed to keep half of the patent thanks to Albus Dumbledore.

The Ministry of Magic forgot a small detail.

Only Lily Evans knew how to create them.

The runic sequence of the device only existed in Professor Evans's mind.

There were only seven "Magical Measurement Devices." Six of them remained at Hogwarts, one in each common room, one in the Great Hall, and the last on the Hogwarts grounds.

Once the method used was known, the ministry began its own investigation. They were partially successful. It's just that their devices were defective. There was a variation in their measurements of around thirty percent.

In the end, after many attempts of robbery and kidnapping, Lily Evans accepted a position at Hogwarts as a Muggle Studies teacher.

Several countries offered her citizenship and a huge budget for her research.

She rejected.

Not for lack of desire, but for her children. She couldn't be away from them for long. Most of them lived with James Potter when they were out of Hogwarts, and she only saw them once a month. The laws didn't favor it, after all.

If she left Britain, she wouldn't be able to see them for a long time. So being a teacher at Hogwarts could even be an opportunity to be closer to them.

Altair placed his hand on the crystal ball, made of an alchemical crystal created by Nicholas Flamel. It was the best conductor of magic that existed.

The meter drains magic for thirty seconds.

The rune sequence would take all of a person's magic in fifteen minutes. It was a constant, even Albus Dumbledore almost ended up without magic after trying it. The crystal ball exploded thirteen seconds before the time was up.

After the experiment, Albus Dumbledore took a nap as someone of his age would require.

The UL of Professor Dumbledore was 167,340.

An average magician only had around ten thousand.

Albus was only seventeen times more powerful than the average wizard, and yet he could wipe the floor with two hundred wizards at once.

[530] was the result for Altair.

"That's more than a hundred UL more than last time." A soft voice was heard to his right.