A/N I am not JK Rowling, evidenced by my total lack of writing skill and clichéd writing. This is a time travel story with no currently planned pairings, definitely no slash. Please review if you have any critique or commentary.
Prologue: A Muddled Present
The six of them stood together as their world crumbled around them, their last stronghold besieged by the enemy, a strange group that would never have been seen together prior to the latest war. Susan Bones, former head of Magical Law Enforcement; Draco Malfoy, former Death Eater; Marietta Edgecombe, still scarred from her childhood betrayal; Neville Longbottom, important member of the Wizengamot; Justin Finch-Fletchley, healer at Saint Mungo's; and Wayne Hopkins, former quidditch star. Loud booms and cracks reverberated through the small room as the house's wards groaned under attack. It would not take much longer until the aurors would be upon them. If that happened, death by spell fire was the best they could hope for.
"It's over." Susan said, weary lines carved into her face by years on the run, "Everything we've done, the people we've killed, the people who died for us - We're all that's left. If we do not go through with this, all this fighting will have been pointless."
"And if we do it, we risk destroying everything. What gives you the right to play god with the universe?"
"Not all of us have the gold and blackmail for the imperius defense, Malfoy. Not that you even need it. I don't even know why you're here!" The hatred was evident in Justin Flinch-Fletchly's words.
Silence dragged on after this outburst, no one quite knowing what to say.
"Listen," Wayne broke the silence, "While Draco," he emphasized the first name, "hasn't always been on our side- hell he's been someone we'd all rather see dead in the past- he's here now with us. He could have left when it was clear we stood no chance, that we were just putting off the inevitable, but he did not. He stayed and fought. And either way, we need him; this ritual needs six people, and we're the only ones left, unless you're planning to sit here and try to kill as many as you can before they get you."
There was no arguing with that.
"I guess if this fails and we end the world we'll have taken all of them out." Justin joked humorlessly.
There had never truly been any question on whether or not they would go through with the ritual; they had all been preparing for the past week. They themselves did not truly understand why the ritual should work, or whether it even had a chance. To go back in time and change the past was no simple undertaking, it had taken years of work from the best rune scribe in centuries to perfect the process, and it had driven her madder than she had already been.
Each one stood at the point of a six-pointed star, drawn in unicorn blood on the rune engraved floor. Each one held a basilisk fang in their right hand and a manticore claw in their left. Intricate runes had been carved into every inch of their bodies, the blood welling up and charging them. As they began to chant the long chant they had memorized, the runes began to glow brightly with an unearthly, pulsing green light.
Their chanting reached a fevered pitch as they neared the end of the ritual, and at the crescendo, they drove the claw and fang deep into their own hearts. A ball of darkness spread from the center of the star and began to absorb them as one of the walls collapsed and ministry aurors poured in, but it was too late, the six were already gone. And then the world exploded.