Disclamer: I don't own Wizarding World of Harry Potter neither Hogwarts Mystery. JKR and Jam City are the true owns, I'm only do it for entertainment

I chose write a one-shot than a draw, because in a draw can't put the differences. She still be the "hero" but not for the same reasons like the original Isolde. The blood-curse that I describe in the fic it's the same in original line and is the plot in another fic crossover that I wrote (but not finish, yet), where other Hiwatari has the same dilemmas (and he's Ravenclaw, too!). It's funny that I wrote and published the Dark side of my Isolde than her Light Side (well, in IG put a little story about two drafts but it's more romantic than her role of hero). I really love to write it. And I want another prompts, but I was occupied all the week. I hope I can do more fics/fanarts. It's based in the list of stupendousbookworm in Tumblr.

I'm sorry for my english

A new Dark Witch has born

Summary: Isolde Hiwatari is the famous Curse-Breaker of Hogwarts. She always had ended the effects of The Vault Curses. But in her fifth year, she had a new mentor of DADA who instructed her about the subject. And Isolde don't waste the opportunity to be more powerful and take new knowledge.

Words: 1,567 words

Characters: MC, Patricia Rakepick,Talbott Winger, Penny Haywood, Beatrice Haywood, Merula Snyde (Mentioned), Rowan Khana (Mentioned), Bill Weasley (Mentioned)

Pairing: Unilateral, OCxTalbott Winger (Mentioned)

Warnings: Swearing, Dark Magic, Dueling, Torture, Blood-curse, probably lovesick

"Crucio!"

When she accepted to curse that dark wizard like Rakepick instructed her, she knew she was going down a path of no return. Isolde Hiwatari saw the man squirmed and yelled in the floor, expressing in her face a smile of pleasure by the sense of power in all her body by tortured that man. Finally she muted her morality's voice and broke the barriers that her own mother put her because Amanda Boot-Calderón didn't want her daughter learn dark magic (in reality all knowledge of witchcraft when Isolde was younger) and would be following the Jacob's steps.

Isolde knew the reason: A blood curse that she carried since she was born and passed down from his dad and the Hiwatari family, the cause she and Jacob had red eyes (sing indicating that they would be a witch and a wizard, respectively), and be the only girl since seven generations ago and the hungry of power to send her by the dark side and finally would be destroyed or praised by it.

"It's enough, Hiwatari!" Rakepick said, saw the girl with pride. "It was what I expected from you".

The girl stopped to curse the wizard, smiled with self-sufficiency and put her wand in her pocket. The dark wizard ran away from there.

"It's time to back to Hogwarts" the Curse-breaker said. "I think Percy Weasley was involucrate in anyway with the person to curse Miss Khanna. When I take new information, I send you an owl to meet us. It's probably we will expose a one of the most horrible villains of the Wizarding World".

Isolde agreed with the witch and left the Knocturn

&.&.&.&.&.&.&.&.

When she returned to Ravenclaw's common room the next day after worked in the kitchen for her punishment, she met with Penny in the stairs, saw the picture where Beatrice was since few months ago. But now are another with a student in a painting. Isolde didn't care but she had pretended her role of "Curse-Breaker" and "Good Friend". She need to find Jacob. If well her searching started for the love that she had to him, soon this feel disappeared and be replaced by the need to take all information about The Curse Vaults and the every secret that Jacob had discovered when he was in Hogwarts.

"I'm afraid we will be the next to be captive in a frame like Beatrice because you and Rakepick are near to resolve this mystery, Isolde" Penny said with sadness. "What Do I do if I find the vault?"

The Ravenclaw saw the Hufflepuff a while. She closed her eyes, thinking about her response. Isolde didn't want Penny could go with her until if a potion-maker would be useful. At the least, she would pick up the Weasley siblings and probably, Merula if only it would be essential their help.

"You tell me immediately. You don't have to put you in unnecessary danger for your sister. It is better Rakepick and I destroy the curse by our hands. Don't worry, we are going to resolve it, soon Penny".

"Oh, I will do, else. And I hope that you and our DADA professor terminate this curse. You don't mind how this nightmare to see every day is my sister in this paint and feel I lost her forever..."

"Yes, I don't. It's like my brother went to vacations for long ago and dissipated in the nothing. Without unknown if he is still alive or not in the last five years. Beatrice by other hand, is still here and we can save her" Isolde said coldly.

"I… I'm sorry. I don't want to say it…"

"Don't worry, you don't need give me apologies. I told you, I can sense the same feeling. My case isn't same of yours" and it was the truth in part, because every year her connection with her brother was weak, understanding she was alone since she put a foot in Hogwarts and she had to fight against the Curse Vaults to survive and become stronger. Only want to find him for her reasons. "Good night, Penny".

She left the Hufflepuff in the stairs, a little hurt, but Isolde don't care in anything. After all, Isolde never had considered her friend. Nobody except Rowan, but now she mistrusted of her. They had fought before Rowan was cursed because Hiwatari has spent a lot of time out of Ravenclaw's Common Room with Rakepick, taking legilimecy and occlumency lessons with Snape, being prefect (she tough it is the real motive Khanna was angry with her), with her punishment and investigating about The Curse Vaults without her. Like the DADA professor told her days ago in Knocturn Alley, she can't be R, but it's probably she helped them to attack her and the students.

"There are two sisters. Each of them give birth the other, who am I talking about?" The eagle knocker asked her.

"It's easy. They're the day and the night" she responded.

"Correct, you can enter"

The Common room was empty except of one person who was reading in a chair near to fireplace, the only one of students in all Hogwarts who do she felt uncomfortable or rather, she felt vulnerable. For disgrace for her he was a Ravenclaw, too. Since she asked him for help to become an Animagus, she had never thought he had some impact in her life. They never weren't friends, but for him she did the only good thing without expecting anything in return (she found his necklace and send him anonymously).

By the other hand, Talbott Winger never trusted in her like the others students and some teachers. It's probably he knew her true colors, and for Isolde, it's the best thing that could happen between of them. She didn't give him the power over her like other people when fell in love. Hiwatari was afraid if he could discovered someday her weakness and he could use against her like a weapon, destroy her. It's another reason to be the strongest witch, even if she must to learn Dark Arts like the Unforgivable Curses or can find a way to avoid to be a lovesick witch.

"Oh, you're here" he sneered, at the same time he closed his book. "The common room was better without you, Hiwatari".

"It isn't a pleasure to see here, too, Winger" she said. She went to the stairs of girls' rooms. "Don't worry, I'll just go to my bed and you can continue reading your book".

"You spent a lot of time with Rakepick. I disappointed but I'm not surprised that you want to grow your knowledge and power. She isn't a good person".

"It's my problem to be educated in advanced magic by her. Finally we have an excellent DADA professor and if she want to teach me more than the scholar program, I don't waste the opportunity to learn as much as possible. Do you ask the same to Bill and Merula?"

"Bill Weasley is the only decent person in the curse-breakers group. I'm afraid you could corrupt him. By other hand, Snyde is like you…" he laugh. "No, I'm wrong. You're the worst of two. Snyde don't need to pretend be a good girl in front to all. But both search the same".

"I don't understand why you said me this…" she spoke. 'What do you pretend, Winger?' she thought the last.

"I try for Penny. She is my friend and she always see the best in all people, even you. I had ever said her to left you because you're a lost cause, but she told me I could speak with you if really you was falling to the dark side and stop you. She thinks you're her friend after all".

"There isn't nobody to save, Winger. She shouldn't worry about me. And if you really want, I will be rude with her and broke our friendship".

"I really wish you did, Hiwatari". He said. He was gone up to stairs, but he stopped, staring at her.

"Well, I…" but she suddenly fell in silence when in her mind hear his voice:

'And I know you used an Unforgiven Curse when I followed you and Rakepick in Knocturn Alley'. He finally took his eyes off her and continued on his way.

Without losing time, she transformed in her eagle form. Isolde flew some steps in front him, and without letting him to react, she became a human again and drew her wand against him:

"Petrificus Totalus!" she screamed. Talbott fell down to the stairs. He can't move his body except his eyes.

'You, bitch!' he only can though but it was clear he want she hear it.

"Did you forget I was a legilimens, Winger? For disgrace, I can't let you have this information. And thank you, my dear for the compliment and for let me to learn in our third year this charm" she drew her wand again. "Obliviate!"

She retired the curse of petrification when he was confused. And she transformed in her animagus form again, hiding in the curtains, waiting he left the room when the effects were gone. She should've been careful and don't underestimate him in the future. Definitely, he could be an excellent auror. And if she would survive against the Cursed Vaults, the cat and mouse game between both would be interesting in their post-Hogwarts life.

Phoenix's nest

Well, I'm in a challenge in Tumblr. For the fandom of Harry Potter: Hogwarts Mystery. Really I missed to write, and about Harry Potter and the Blade Breakers, I had the next chapter (only in spanish, sorry!). I try to upload soon. See ya!