Disclaimer: No major characters are mine except one... and you haven't really been introduced. The world belongs to JK. Rowling as well as some basic plot.

(A/N: This is about all of the characters, but mostly Harry, Voldemort, my Original Character, Sirius, Snape, Lupin and the basic characters. I refuse to have Sirius killed before this, so lets forget what book five said! This is a test run for this fic, I'm only going to continue it if there is interest!)

"SAY GOODBYE POTTER!" Voldemort screamed and raised his wand.

"Mind if I have a word first?" The female voice floated out of the surrounding mists; unbalancing them with its calm request.

Voldemort froze. Harry, Ron and Hermione let out a breath simultaneously. They were safe for now, but who was this woman? And why would she help them? Or more to the point could she help them against the most evil wizard of the era?

The woman stepped out from left bank of mist, back-lit by the cauldron simmering on Tom Riddle Sr.'s grave. The dark wizard spun to face her.

"Thank you."

Voldemort glared at her, and Harry found the red gaze very disturbing despite the fact that he wasn't the target.

"Who are you?" The red eyes narrowed in question. The glare had had little effect on her. Her head tilted slightly as if studying the man most wizards couldn't even name out loud.

"I didn't think it mattered," she tossed back nonchalantly, causing the wizard's chin to jerk in rage at the insolence behind the remark.

Harry exchanged a look with the others. This was no ally of Voldemort's, but she wasn't going to be useful to them either if she got herself killed now. Harry frowned as he recognised the voice, but couldn't place it with her still standing silhouetted.

"Do you know who I am girl?"

"How could I not? Tom."

Taking a step of retreat, Voldemort simply stared.

"Oh yes, I know very well who you are, Tom Riddle."

No longer playing games, Voldemort called "Acio wand." All Harry's hopes plummeted as he watched the witch's wand spin towards Voldemort. None of them had a wand; they were all going to die. He heard Hermione sob once quietly beside him and gently squeezed her hand.

"Perhaps I ought to have called you by the name you prefer, Voldemort."

"WHO ARE YOU, WOMAN? YOU DARE TO BAIT ME AND CALL ME BY A NAME I FORSOOK LONG AGO! THEN YOU SPEAK THE NAME WHICH IS FEAR ITSELF AS IF IT WERE NOTHING MORE THAN THAT OF A MUDBLOOD!"

"Isn't it?" She challenged quietly.

"ISN'T IT WHAT?" Voldemort snapped back.

"The name of a Mudblood."

She seemed completely unfazed by the loss of her wand. Even disarmed the woman had no concept of the word 'caution', Harry thought admiringly. Voldemort was holding five wands and she none, yet it seemed it was she that held the advantage!

"WHO ARE YOU?"

She stepped into the light and said, "Your worst nightmare."

(A/N: let me know what you think, because otherwise this is all there is until I finish my other fanfic Different Kinds of Magic.)