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Power the Dark Lord knows not: Angry older sister who adopted you

Summary:

Lyra Malfoy was not even one week old when she had her first brush with death. Had her mother taken five more minutes to wake up, Lyra would be dead and there would be no visible reason for it. She would be buried in family crypt and would be mourned deeply by her mother. Her name would go unmentioned until almost nineteen years later, when during the Battle of Department of Mysteries, the Veil of Death exploded and from the explosion appeared two people, Cedric Diggory and Lyra Malfoy.

Chapter 1: Department of Mysteries

Notes:

(See the end of the chapter for notes.)

Chapter Text

Inside of the Ministry of Magic there was a Department of Mysteries. Inside of this department there was a Death Chamber. And inside of this chamber there was a battle in full swing. It had started with bunch of school children running in and being ambushed by a group of adults calling themselves Death Eaters led by man with blond almost white hair. Another group of adults, these adults were called the Order of the Phoenix, had then promptly arrived and battle was on. Now a while later most of the school kids have been evacuated except for a boy with glasses, bright green eyes and lightning bolt scar. He was fighting in the middle of the chamber next to his godfather right in front of the Veil of Death against a woman with wild black hair and crazy laugh.

Spells were flying everywhere. Bellatrix fired the killing curse. It very narrowly missed Sirius and hit the Veil of Death instead causing it to explode. Huge tidal wave hit the entire room. Everybody was thrown on the ground. In the confusion it took few seconds before people started getting up from the floor and fighting again.

While getting up Sirius noticed a flash of blond almost white hair. Hair of a Malfoy. He immediately jumped up to face Lucius again. But it was not Lucius. There was a very blond girl crouched next to a slowly rising dark haired boy. The boy did not make Sirius pause.

Probably one of Harry’s school mates he supposed.

But the girl did. She had her wand out firing curses at closest Death Eaters. She couldn’t be older that twenty. She had Malfoy hair but otherwise she looked remarkably like Narcissa when she had been younger. The girl drew Sirius’ attention long enough for him to get hit by a stray cutting curse and he winced and fell to one knee. They will worry about the girl later. She appeared to be on their side anyway.

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The odd explosion that happened just a minute ago made it hard for Cedric to recuperate. He had not seen that many explosions in his life. Most of them last year while helping Lyra train. But from what he had experienced one was supposed to be thrown away from the source. Lyra and he had been sucked into it.

Lyra was now standing above him and fighting the Death Eaters with all her might. Even in the unfitting boy’s uniform covered with blood stains she still looks stunning. Her hair was flying around her head looking like a halo. I really need to get my head back into this fight he startles out of his thoughts and looks around.

Most of remaining Death Eaters were either unconscious or tied up and the Order members were easily handling the remaining few now when Professor Dumbledore had arrived. The exception is Bellatrix who was currently duelling Lyra. Very close to him was Harry holding the weight of his godfather who was bleeding from a nasty gash on his side.

“Here,” Cedric says, “Let me help,” and cast healing spell over Sirius’ wound.

“What?” He asked when he noticed Harry staring at him. Receiving no answer, he looked at Lyra for confirmation Harry was acting weirdly. But the spot she had been fighting on in empty and he saw her running out of the chamber to follow her crazy aunt.

“Oh, bloody hell!” Cedric exclaimed and made to follow them sparing a glance and Harry who was still staring at him. Quiet shaky question stoped him in his track.

“Am I dead?”

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Harry knew that was probably a bad question. Surely, he would be aware if he died. But then he remembered Professor Binns and just blurted it out at the boy who he was quite certain was actually dead.

Cedric’s eyebrows shot up and he blinked few times. “Were you hit by some spell?” he asked Harry worriedly and looked him up and down.

“Nothing too serious,” Harry said still staring at Cedric.

“Why would you be dead then” Cedric asked visibly confused.

“Well,” Harry started looking at Sirius for help, but he was just looking between Cedric and spot where the Veil used to stand.

“Because Cedric Diggory was killed during the final task of the Triwizard Tournament last year,” Albus Dumbledore stated finally finishing with the remaining Death Eaters.

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Lyra was following her aunt out of the Department of Mysteries. She realised logically that she should just grab Harry and Cedric and return to Hogwarts. But she just wanted this sick creature back in the Azkaban. And the revenge for Tonks. That spell that hit her looked very nasty.

They reached the Ministry atrium in their mad sprint before Lyra tripped Bellatrix, and they faced each other again. Lyra absent-mindedly noted that it must be getting close to morning.

“Why do you look like my sister?!” Bellatrix yelled before firing a cruciatus curse that Lyra quickly dodged. They traded curses for a while. Bellatrix used much darker ones than Lyra and got surprised and frustrated that Lyra can counteract all the courses taught to the daughters of house Black.

“I would explain genetics to you,” Lyra said hitting her with wordless expeliarmus, “but I doubt you would appreciate it. You see, it is very muggle.” She finished, stuned her and then fired a complex spell and trapping her aunt in delicate looking but unbreakable bonds.

Sound of slow clapping filled the atrium of the Ministry of Magic.

“What a display of quite the powerful magic!” Cold voice proclaimsed from behind Lyra.

She turns around and a grip on her wand tightened as she aimed it. Halfway across the room stood the infamous Lord Voldemort in all his snaky glory. She immediately realised that road to her escape was blocked. He was standing between her and the ministry floo network.

She knew she should not provoke him. But chances that she would walk away from their fight a second time was nearing zero. So, she let slip from her lips: “Hey Tom! How nice of you to join us!” and started casting.

In the end, it wasn’t as short fight as Lyra expected but she still ended up wandless and on her back on the ground. There was still a slight tremor to her body from the use of cruciatus and the dark lord was towering over her. She noted with bit of grim satisfaction that he was bleeding from cut on a cheek and his robes were torn at multiple places.

“I came here to kill Potter,” lord Voldemort stated. “You derailed me. I was going to make an offer to you, you are clearly powerful and skilled with magic. And you had to go and run your filthy mouth. But the Dark Lord is merciful. You must be a strong witch; you defeated my most skilled follower. So, tell me, witch, what is your name?”

“Ouch,” Lyra said with as much of a smirk as she could muster, “And I thought I made a lasting impression last year.”

He looked at her confused but before he could say anything else - or curse her some more - all the fireplaces in the atrium came to life and out came streaming Ministry officials with Fudge leading them.

Voldemort raised his head to face the crowd before apparating away. Relief hit Lyra like a tidal wave as she processed previous hour. The crowd of ministry officials stood frozen in place.

“He’s back!” exclaimed Fudge “He really is back!”

“Shocking,” drawled Lyra sitting up, “so sad someone did not warn you when he came back. So tragic,” At the last statement her voice was dripping with sarcasm. “Also please don’t let this escaped convict escape under your nose. It would be embarrassing for you. Also overpowering her was not easy and I don’t want to do it again.”

That finally unfroze the ministry workers except for Fudge who still stood in the same spot utterly shocked. Half a dozen aurors crowded Bellatrix, the bonds on her melted away during Lyra’s duel with Voldemort.

Two mediwizards approached Lyra. “Miss, can you tell us your name?”

“Lyra Malfoy,” she answered automatically.

Mediwizard’s eyes narrowed but he did not say anything. He got up and quietly spoke to one of the aurors. Lyra did not pay him any attention and focused at the one looking her over. She got handed a small vial of liquid and drank it. A second later she realised she should have at least checked it over.

“What is your full name?”

Her lips moved without her mind doing a thing. “Lyra Narcissa Malfoy,” she blinked “Did you bloody dose me with veritaserum?”

“Yes,” he replied without ounce of shame “you are claiming to be someone’s dead child. Of course, we dosed you with veritaserum”

“Dead?” Lyra said weekly.

“What is your date of birth?” he continued questioning ignoring her.

“September 27th, 1977,”

“What are the names of your parents?”

“Lucius and Narcissa Malfoy,” she closed her eyes and took a deep breath. She waited for another question, but it did not come. She looked up and saw she was being handed another vial. This one she checked before drinking.

How could she be dead. And she had died as a child. Well, according to the mediwizard. And Bellatrix recognised her at first and then didn’t.

“The Veil of Death!” she realised and then a dread hit her. Her exclamation gained attention of crowd gathering in the atrium from the Department of Mysteries.

“Pardon?”

She responded with a quiet question: “How did Cedric Diggory die?” She hoped she is wrong, but answer affirmed her theory. “Last year while competing at the third task, how do you not know this?”

She looked him straight in the eye and said: “Because I believe I was pulled here through the Veil of Death. Because apparently, I died as a baby. I would question my father about that by the way,” she added last bit as an afterthought before continuing her speech, “Because the way I remember it, I was the Hogwarts champion, I touched the damned cup together with Harry and I went to that bloody cemetery at Little Harrington!”

Hush fell over the Ministry Atrium as everybody stared at her. She realised that in the middle of her speech she had got up and was now standing on her shaky legs. Bad memories from last summer flash before her eyes as she tried her hardest to occlude.

Sudden cry by Cedric’s familiar voice cut into a silence: “Lyra!” and then she was being hugged and she buried her head in his shirt and holds for dear life.

Notes:

Hi everyone, this is my first time writing a fanfic. I would love any feedback I can get😊