The Battle Mage

Disclaimer: I do not own Harry Potter, only my OC's.

Summary: Noelle Morrigan Potter, James Potter's little sister, Sirius Black's fiancé, left England to learn to be a battle mage. With her credentials, she returned, eager to know why James and Sirius had stopped sending her letters only to learn of the events of Halloween night. What will Harry act like raised by the Morrigan, the only battle witch in the last three centuries?

NOTE: For the purposes of my timeline, James and Lily were 23 when they had Harry and 24 when they died. Since Noelle is a year younger than James, that makes her 23.

Noelle Morrigan Potter embodied a hurricane as she descended upon Hogwarts. She had trained for six years to be a battle mage, of which there were less than a dozen in the world currently living and none of them women, and it showed. She walked like a predator, light and quiet on her feet, ready to spring in any direction. She wore dragonhide battle robes with runes sewed on the insides for protection, comfort, strength, and freedom of movement. Her primary wands were strapped to her forearms, and a spare – her first wand – was tucked within her left boot. Two swords crossed her back in an X, with the hilts peeking over her shoulders.

Unlike James, who was practically identical to Charlus Potter, the majority of her features came from their mother, Dorea Potter nee Black. Her black ringlets were tied back in a braid, and her purple-gray eyes weren't hidden behind spectacles like James' own hazel.

She walked down the snow-covered bridge, sensing the wards, and flicking a pulse of her magic at them to call the Headmaster and his loyal flock of Professors' attention to her return. She stopped in the courtyard and waited for the teachers to come to her. She wasn't walking into potential enemy territory, especially when Dumbledore held the fanatic devotion of his staff and the entire student body. She may cut through armies, but she wouldn't kill children.

A light snow started to fall, and she knew she looked like a dementor or an angel of death against the pale stone and snow. By the time Dumbledore and Professor McGonagall exited the front doors, students lined the courtyard, peering at her in awe. The younger years kept asking who she was, but one of the seventh year Ravenclaws said, "Are you kidding? That's the Morrigan. I was a firstie in her last year."

"Dumbledore," she greeted cold as the winter she was named for, then she turned and greeted much more warmly, "Hey, Minnie."

"Ah, dear Noelle, I had been meaning to contact you for quite some time," he said, eyes twinkling.

"Spare me your bumbling façade old man. I haven't received my customary letters from James or Sirius since September. The deal was that you would use Fawkes to pass along communication. You know owls can't find their way through the wards where I was," she continued.

She knew something was wrong when Minerva gasped and her eyes filled with tears, "You mean you don't know? Albus, you told me you contacted her!"

"Perhaps we might continue this inside," the Headmaster started.

"No," she snapped with such finality that everyone froze for a moment.

He continued as though she hadn't spoken, "I'm afraid I must insist."

Noelle turned to Minerva, "Minnie, tell me."

"James, Lily and Harry when into hiding under the Fidelius Charm because we heard that You-Know-Who was after them. Sirius was the Secret Keeper who gave away their location to He-Who-Must-Not-Be-Named. You-Know-Who broke into their house on Halloween and killed James and Lily. Sirius was thrown in Azkaban for betraying them and killing Peter Pettigrew and exploding the street they were fighting on, which killed twelve muggles."

"And my nephew?" she choked out.

"Alive and in hiding," Dumbledore interjected.

Noelle seemed to darken before their eyes, ice spreading across the cobblestones around her feet until they stood before the Morrigan in all her glory, already infamous. Frost crackled across her hands, which curled into fists and her breaths clouded as the temperature dropped. A single tear froze on her cheek, and she turned.

Dumbledore leaned back, satisfied that he had broken the formidable witch before she had even begun. He had been responsible for the rise of two dark lords, he wouldn't be responsible for a dark lady as well. That was, until her knuckles crashed into his face and his nose broke once again. He cried out and fell to the ground, wand rolling out of his hand. The ice grew up his arms and legs to hold him in place.

"You evil manipulative bastard. You walk around parading as the Leader of the Light, influencing the next generation from your high horse, acting the part of a harmless wise old man, but I know you for what you are. You are a liar and a coward," she snarled her accusations. The very air around her was condensing and freezing, crackling with icy lightning, and she picked up Dumbledore's wand.

"If it weren't for your support, Grindelwald would not have risen, and once he had, you should have killed him before he terrorized Europe. If you hadn't been so prejudiced against the Slytherin House, none of this would have happened. You created the Death Eaters. You created Voldemort!" the students were gasping and whispering with each accusation.

The Gryffindors and most of the Hufflepuffs insisting that it wasn't true, that the Headmaster wouldn't do that. But the remaining Hufflepuffs, Ravenclaws and Slytherins listened in shock, suddenly seeing Dumbledore's actions in a new light. McGonagall herself tried to convince herself that it wasn't true but knew Noelle well enough to realize that she wouldn't have said it if she couldn't prove it.

"You lie and tell others that this cause is worth their lives, their children's lives, forbid them from using lethal spells that would save their loved ones, and then you turn around and offer mercy and second chances to rapists and murderers and terrorists that they fought and died to capture. That's my brother, my sister-in-law, my nephew, and my fiancé's lives you're playing with like they're chess pieces. Well hear me now fucker. I'm flipping the board!" she snarled, lightning darting between snowflakes, snapping his wand – the Elder Wand – once, twice, thrice – freezing the remains and tossing them to the ground, where they fell to irreparable splinters.

Dumbledore roared with anger, and the students gasped as she gave the Headmaster one of the gravest insults a wizard or witch could give another, and she warned, "It would be a blood feud between our families if I didn't like Aberforth so much."

She threw an overpowered Stupify at the man and turned to Minerva, "Take me to my nephew. If he told anyone where he was, it would be you."

"Students return to your classes at once," she barked, before turning back to Noelle, "He's famous now. They're celebrating him as The-Boy-Who-Lived because You-Know-Who hit him with the Killing Curse, but it rebounded and vanquished the dark wizard instead."

Noelle stiffened at this information but did nothing more than pick up the pace. They walked across the ground to get past the wards, preparing to apparate to Harry's location. Minerva grabbed hold of Noelle's elbow and spun in place.