Harry Potter and the Curse of Lazarus

by DZ2

A Killer's Instinct Response: The Most Ancient and Noble House of Potter has always sired warriors to be both feared and respected, but what is it that makes them so revered and feared? Harry's about to find out, thanks to a promise for justice, a thirst for vengeance and a will for freedom. Dark OP, Ruthless, Bonded-Harry/Fleur

Harry Potter and the Curse of Lazarus: A Harry Potter Fanfiction

Disclaimer: I do not own Harry Potter or any of its associated characters: all rights belong to JK Rowling. I do not own any crossover references used in the story: all rights belong to their original creators. I do own any OC spells explained at the end of a chapter.

Plot: A Killer's Instinct Response: The Most Ancient and Noble House of Potter has always sired warriors to be both feared and respected, but what is it that makes them so revered and feared? Harry's about to find out, thanks to a promise for justice, a thirst for vengeance and a will for freedom.

Challenge Information: DZ2's 'A Killer Instinct' Challenge: Harry threatened to kill Sirius: even when you're an emotional teenager, you don't really get to say something like that and then get over it, but when Harry is confronted with the truth, his bloodlust seeks out a new target...but will one life sate the Predator's hunger? I very much doubt it, don't you?

Rules: Dark or Evil Harry

As the summary says, the story MUST start with Harry saying the line from PoA's movie - where he threatens to kill Sirius - or when Harry meets Sirius and is reminded of his promise

Sirius MUST actually beg Harry to spare him, so he can tell Harry the truth, even if it means Sirius still dies afterwards: he'll accept it, knowing his boy knows the truth

When Harry learns the truth, his ire and hunger for a 'life-for-a-life' is turned on Wormtail

Obviously, Ron and Hermione MUST try and stop him, but fail

HOW Harry kills Wormtail is up to you, but, because of this death, Harry becomes someone else...he becomes something else

Even with Wormtail dead, Sirius MUST have enough sense to use Magical Law to get his name cleared, including using Harry's memories and, if necessary, oaths and debts

After all's said and done, however, Harry MUST choose to become someone willing to do what must be done, even kill, if it means achieving victory

Sirius MUST claim guardianship over Harry, but he uses it to allow Harry to let himself go and become whatever he chooses to be

How others handle this new, confident, ruthless and bloodthirsty side of him is up to you

Before living with Sirius, Harry makes damn sure the Dursleys know what their crap has cost them, and what he'll do should they ever meet again

All pairings are welcome

Guidelines: Crossovers

Super/OP Harry

Dark-Lord Harry

The first death causes Harry to snap/go insane

Killing causes the Horcrux in Harry to bleed into him, giving him knowledge, power and fuelling his darkness

Remus and/or Severus don't make it in time to stop Harry

Harry uses the life-debt over Severus to get him to vouch for Harry and ensure Sirius gets his name cleared

Fudge - like the idiot he is - tries to get Harry sent to Azkaban for murder (but whatever law/loophole Harry and Sirius use gets him off scot-free)

Dumbledore attempts to divide Harry and Sirius, claiming Sirius influenced Harry somehow

After getting his name cleared, Sirius adopts Harry, but continues to prove and claim he doesn't have any power over his boy

Harry, demanding blood, takes Wormtail's corpse and uses it for 'practice' with his newfound bloodlust

Tom offers an olive branch/an alliance, claiming he is willing to let Harry hurt people, unlike Dumbledore

Consumed by his bloodlust, Harry somehow forces Tom to serve him and/or makes him suffer for what he stole from Harry

If/When someone tries to use Harry's parents against him, he says something like: How about I send you to go crying to them, then, seeing as how they're dead?

Harry follows the path of like-minded people (e.g. assassins, mercenaries etc.)

Slash

Harems

Harry/Multi

For some weird reason, after the first kill, Harry discovers he needs to kill to maintain clarity (think the Lazarus Pit's bloodlust in Arrow)

Harry carries weapons on him, showing he doesn't need magic to hurt you

After escaping Azkaban later-on, or whenever, Bellatrix finds herself drawn to Harry's bloodlust and makes a deal with him or Sirius to help/serve Harry's bloodlust

Harry lets the bloodlust out in full/greater force in the Tasks in the Tournament

Forbidden: Light or Grey Harry

Harry NOT killing

Sirius NOT being cleared, even though the star witness is dead

Wormtail NOT getting his just deserts

Anyone convincing Harry to lock the monster away again

Ron and Hermione accepting the new Harry's attitude at first (obviously, they can come around later)

Harry letting himself be weak, naive and even willing to let things slide/go after killing

Other than that, it's up to you…

Author's Note: So, in a weird, creepy way, this insane little nugget was partially inspired by a personal wish for the event in question and, at the same time, the dark inspirations brought on by the Spookiest Night of the Year, so…enjoy…and try to not have nightmares!

Recommended Reads: Damaged Raven and Apex by JustBored21, Two Minds, One Wand by RobertWilsonWriting, Ascension and The Son of Storms by PerseusPeverell092, Dying to Live by ch4, The Rise of the Last Potter by HPfanfictioner66, And She Saw by Semper Vi, Harry Potter and the International Triwizard Tournament by Saliient91, A King's Path by 521-DREAM, Kill me if you can by PercyPendragon3, Breaking Point by Carrots123 and A Cadmean Victory Remastered by DarknessEnthroned

Key Pairing: Dark Bonded Harry/Fleur

Other Pairings: Neville/Ginny; Others TBD

Normal Speech

'Thoughts'

'Mental Speech'

/Parseltongue/

Chapter 1: A Promise That I Keep

'He was their friend…'

As he walked through the tunnel underneath the Whomping Willow, Harry could hear Ron moaning from up ahead.

'And he betrayed them…'

He felt the cold sensations of the tunnel, as well as the foreboding surroundings of the building that the tunnel opened out into wrapping around him, but Harry pushed on, determined to save his friend and, at last, figure out this whole bloody insane year's mysteries.

'HE WAS THEIR FRIEND!'

Climbing the stairs, Harry tried not to show any fear or dread as he heard the pained whimpers of the boy whom he'd begun to think of as an honorary brother while, behind him, he was also aware of Hermione whispering about the building, the Shrieking Shack, and seemingly trying to pull Harry back, as though they weren't meant to be there.

'I hope he finds me…'

All right, so maybe she had a point, but Harry was more-concerned about his best friend, the guy who'd tried to do so much to help Harry stay away from the dark thoughts that had plagued him ever since that day.

While Hermione had been off making herself unwell with her beyond-insane timetable, as well as whatever secrets she seemed to be all too willing to keep, even from the two guys who cared about her like the sister they never had – well, more in Harry's case than Ron's, since he did have a kid sister – Harry had been helped by Ron, while Harry had also tried to keep the peace between Ron and Hermione.

He'd even stood up for his friend's night terrors after the spider incident and been just as supportive back when the Tower had been invaded and Ron almost killed by…

By…

'Cause when he does…I'm going to be ready…'

Suddenly, as Harry and Hermione pushed their way into the decrepit room from which Ron's cries emanated, a cold, unnerving feeling began to gnaw away at Harry's heart, accompanied by a surge of heat that seemed to start somewhere behind his heart, as well as in his stomach. From there, the heat began to creep, or slither, like snakes of emotional turmoil, through every vein, artery, bone, organ and muscle in Harry's body, bringing with it a memory.

No…

More than a memory…

'When he does…'

A promise!

"Ron!" cried Harry, running into the room, Hermione seemingly hesitating before she eventually brought up the rear, while Harry asked, "Are you all right? Where is it? The dog: what happened to it?"

"HARRY!"

Ron's cry of alarm, as well as warning, seemed to be punctuated by the heat that flowed through Harry's body, reminding him of his vow, his words and his desire, all of which were fuelled and augmented by the look of sheer terror, as well as alarm on his honorary brother's face as he pointed a shaking, trembling finger past Harry.

"It…IT'S A TRAP! HE'S THE DOG! HE'S AN ANIMAGUS!"

Slowly, tensely, and somewhat-robotically, Harry turned to face the direction where Ron had pointed; when he did so, he saw muddy pawprints moving off towards the door they'd walked through. However, as the prints neared the door, they seemed to grow larger, wider and less-canine in origin, though, before Harry could begin to guess why, he saw the door close.

Revealing…him!

The reason for the promise Harry had made.

A promise he never wanted to believe he had ever made, or would ever need to make for anyone, not even Riddle.

And yet, as he saw the wild, wiry and heavily-entangled black hair, as well as the gaunt, sickly-looking physique, grey eyes that burned with a mixture of satisfaction and malice and, finally, the faded Azkaban Prison robes he wore, Harry heard his promise echo through his mind once more.

'I'M GOING TO KILL HIM!'

Sirius Black, the Prisoner of Azkaban, stood before Harry, who felt the heat burning up inside of him, bringing with it a feeling of overwhelming bloodlust, longing and dark-spawned desires. All these things combined seemed to bring out a side of Harry he'd only ever felt and shown once before, and, even then, it had been the day he'd made his promise.

Now, he had the chance to…

"If you want to kill Harry, you'll have to kill us too!"

'Damnit, Hermione,' thought Harry darkly, unable to fully believe that the so-called brightest witch of her age would actually put herself between Harry and his revenge, or the chance to finally fulfil his promise, honouring his word and making damn sure that this two-faced murdering traitor got exactly what he deserved.

This thought, coupled with the ire he already felt scorching away inside of him, only made Harry feel angrier as he clenched his fists, causing them to tremble darkly as he saw Sirius sneer at Hermione's piss-poor attempt to stick her oar in where it didn't belong, before he smiled wolfishly at the three Gryffindor students.

"No…" rasped Sirius, his voice weakened by wear and tear, while his eyes burned with desire as he insisted, "Only one will die tonight…"

"THEN IT'LL BE YOU!"

Suddenly, Ron's eyes widened in disbelief, while Hermione barely had a moment to register the roar of primordial fury that tore out of Harry as he charged past her, knocking the brunette to the ground before he tackled Sirius hard, knocking him down and pinning the thin, crazy man beneath him, his wand already in his hand as he glared daggers at Sirius.

And yet, to Harry's outrage – the fires of which only caused his already-inferno-level rage to turn into something akin to Fiendfyre, burning away at his mind, heart and soul – Sirius laughed at him, as though it was all some big joke, before he asked, "Are…are you going to…to kill me, Harry?"

Driven by his fury, Harry barely noticed something suddenly appear in his hand; where it had come from, or how it found itself there, he didn't know.

All he knew was rage.

All he craved was vengeance.

All he hungered for was justice.

Moving his wand away from Sirius, Harry switched hands, earning an alarmed look from Sirius as, instead, Harry now held a small, but very sharp, blood-red blade against his throat, his green eyes burning like a fiery rendition of the curse that had made Harry famous as he snarled at Sirius, "I am going to kill you, Black! For what you did! For what you stole from me! For everything you did! Here…in this Shack…this is where you die!"

Suddenly, as Sirius saw Harry's eyes burning with fiery, determined – if not obsessively-possessed – levels of rage and desire, it was like a switch had been flipped on in the mind of the Prisoner of Azkaban.

Ron, meanwhile, could only sum up his thoughts in two words, "Bloody hell!"

"Harry! What…what do you think you're doing?" asked Hermione, horror and disbelief more than evident in her voice as she insisted, "You…you can't kill another human being, no matter what they've done!"

"Stay out of this, Granger!" snarled Harry, earning an alarmed look from Hermione, before Harry pressed his knife against Sirius' throat, earning a choked sob and a strangled cry from the Black Prisoner as Harry asked him, "So, any last words, Black? Anything to say before the son of the people you betrayed sends you straight to Hell?"

"Ha…Ha…Harry…" rasped Sirius, his earlier cockiness and amused disbelief now replaced by sheer terror and pleading as he gasped, "Please…I need…I have to…to tell you…this…there's…urk!"

Before he could finish, however, Sirius felt Harry push the blade deeper, causing a thin rivulet of Sirius' blood to trickle down his skin, while the green-eyed Gryffindor hissed like a man possessed, "No! You won't deny me my family's justice, Black! You're going to wish you'd stayed in Azkaban before I'm done with you, you…"

"Expelliarmus!"

As Hermione attempted to stop Harry from doing something he'd only regret later, her eyes widened suddenly when, instead of sending the blade in his hand flying out of Harry's reach, her spell was, instead, absorbed by the blade, which seemed to glow hotter and more-painful to behold as Harry kept it pressed against Sirius' throat.

"What? No…Harry, you…you can't!"

"I THOUGHT I TOLD YOU TO STAY OUT OF THIS, GRANGER?" Asked Harry; as he practically screamed the words out, however, his rage took over, emphasising his will and his words via his magic.

All of a sudden, while Harry kept Sirius pinned beneath him, Hermione was suddenly sent flying hard into the wall near where Ron had been maimed by Sirius' Animagus form. To her horror, Harry didn't even seem concerned for her safety, much less what he'd done as, instead, he turned back to Sirius.

Speaking of Sirius, his eyes widened suddenly when, as his godson looked back to him, pressing the blade against his throat once more, the Black Scion saw Harry's eyes turn blood-red, sclera and all, his glare so venomous and monstrous that he didn't even look human anymore.

Much less Harry.

"Harry…no!" gasped Sirius, clawing at the arm holding the blade to his throat, "Please…not this…not because of…of me! Please…let me…let me explain…you…you need to know…I…I didn't…I couldn't have…urkkkhhh!"

Now, Sirius was gasping for breath as, on top of the hot blade pinned to his throat, Harry used his free hand to grab the Black Scion's lower jaw, where he pushed hard, cutting off Sirius' airflow, while the blade caused more blood to trickle down from Sirius' neckline.

"Now…Black…" hissed Harry, his voice so cold and dark that he didn't even sound like a boy anymore.

Now, he was a warrior…a demon!

One hell-bent on vengeance, and its taste.

"You're going to die…and nobody will even blame me for it…"

"Ha…Ha…Ha…"

"Quiet!" hissed Harry, drawing the blade along Sirius' neckline, turning his trickle into a slightly faster flow of blood, which caused a pool to form beneath Sirius, who barely managed to croak out his next – and, quite possibly, his last – words through the pain, horror and fear rising inside him.

"B…B…Blood…Pact…"

Suddenly, Harry's eyes widened, albeit slightly, as he lifted his blade from Sirius' throat; had Ron or Hermione been able to see him, they would have seen Sirius' wound closing up, almost as though the act of releasing the blade caused the wound to cauterise itself.

At the same time, Sirius coughed heavily, spitting up blood before he coughed and sputtered as he looked up to Harry, who now wore a suspicious, curious look on his face, though his eyes seemed to maintain their reddish glow as he asked, "What…what did you just say, you murdering traitor?"

"I…I couldn't…have be…betrayed Lily…"

"Don't you dare speak their names!" hissed Harry, earning a quick nod from Sirius as he raised his hands, dropping his wand for added emphasis as he looked right into Harry's scarlet-coloured eyes.

"All right, sorry…as I was saying, I…I couldn't have betrayed…your parents because…because when…when they named me your godfather, they had me swear one of the most-powerful oaths imaginable, short of the Unbreakable Vow, to guide, protect and even love and care for you, if anything happened to them. To that end, I…I swore to not only do all that; I also vowed that, for as long as you were in my care, I…I would never, ever turn on you, or them, or do anything to disgrace and denounce the friendship and love I…I had for them: as my pseudo-brother-and-sister both, they were like family…and you, pup…you were like the son I never had. I even named you my heir after I held you in my arms, so…so please, let me help you get your true vengeance and…and prove my word and…and if I'm lying, I promise…"

Here, Sirius put a hand to his throat, rubbing the scar that had been left by the red blade in Harry's hand, which seemed to be hissing furiously, as though it was growing white-hot in his hand, before he looked into Harry's eyes.

"I swear, Harry…if this fails and…and you still don't believe me, then…then you can go right ahead and kill me…I won't even try to stop you."

Suddenly, the blade in Harry's hand seemed to dissipate into nothing more than a wisp of smoke, though Harry's eyes stayed crimson coloured as he pulled back, cocking his head to one side as he frowned at the submissive man before him.

"All right, Black…you've got five minutes…start talking!"

Lazarus

Another Place

Flying…

Oh, how she loved flying…

The air…

The sky…

The sun…

The moon…

The stars…

It all felt so free to her as she beat her wings, soaring to new heights, rising higher and higher as she enjoyed the thrill of the air, the feeling of the winds and the views from way-way up in the skies.

As she rose into the air, however, a sudden blur of movement caught her eye, making her bank hard as she narrowly avoided the sudden arrival of a large, dark shadow, which rose up from out of the shadows of the night, blanketing her view and obscuring both sun and moon from her. As she looked up to the shadow, she saw huge black wings spread out either side of the shadow's body while, looking further upwards, she saw two dark, predatorily-fuelled orbs leering at her with a sensation she knew all too well.

Hunger!

However, as she looked into the orbs, noticing their beautiful, if somewhat-unique green colouring, she felt something she didn't expect to feel.

Not fear…no…what she felt instead was entranced, looking up to the dark shadow as she rose up, hoping to look it in the eyes.

However, as she rose up, she gasped as the shadow grabbed her, holding her tight in what could only be described as a thick, hot, prehensile tail, which coiled its way around her like it was the King of Serpents himself. At the same time, the shadow lifted her up where, to her awe, she saw the shadow lick its lips, spitting embers and a crimson liquid that, somehow, she just knew was blood – though from what or whom, she knew not – all over her body as it lifted her up.

Then, with her eyes fixed on the shadow, a second awed, enraptured gasp escaped her when the shadow spoke to her…

"YOU…ARE THE CHOSEN ONE! EMBRACE ME…AND I WILL MAKE YOU A GODDESS! REFUSE ME…AND I SHALL MAKE YOU MY DINNER! WHAT SAY YOU, ANCHOR OF MY ETERNALLY-RAVENOUS FLAME?"

Awe.

Fear.

Wonder.

Lust.

Longing.

Freedom.

All these things burned through her as she looked right into the eyes of the shadow before, opening her beak, she answered it…him.

"Yes…"

The shadow smiled…

Then, opening its jaws, it consumed her in one gulp…

Lazarus

At the exact same time, Fleur Aphrodite Delacour snapped her eyes open, sitting up from where, to her disbelief, she had fallen asleep whilst studying for her end-of-term assessment, which would not only rank her among her peers, but also decide whether or not she would be a viable candidate for her school's placement in the up-and-coming Triwizard Tournament.

Now, however, Fleur felt a new purpose, a new longing and desire wash over her; one she'd never felt before and yet, as she felt it take hold of her mind, soul, magic, heart and even her Veela instincts, she felt like all she wanted to do was succumb to it.

To her dragon, as she knew, somehow, had been the source of the shadow in her strange, erotic and wonderful dream.

At the same time, she wondered exactly what it had meant by calling her its Chosen…

Or who it was and where they were now.

Closing her book, Fleur left for her room, her mind, heart and soul focused on getting some answers.

All the while hoping she could experience the rapture of feeling her dragon consume, and claim, her as his own once again.

Maybe, one day, even out in the waking world…

Wow, talk about intense and surprising on all counts: Harry seemed to keep his promise, but now, Sirius has got five minutes to convince his bloodlusting godson not to kill him: can he manage it?

On a similar note, where did that blade come from and go? Why did Harry's eyes change colour as his rage enveloped and consumed him, driving him to fulfil his promise…near-enough?

And what does any of this have to do with the Dragon from Fleur's vision, if anything at all?

Keep Reading to Find Out

Next Chapter: Sirius has 300 seconds to change Harry's mind, but is it enough time to put the dragon back to sleep? And how might the outcome be affected, should two others decide to interfere before or after time runs out?

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