Four Born to be the Greatest
Disclaimer: I do not own anything you recognize. I don't own the idea of four babies being born at the same time when Harry defeated the Dark lord for the final time. I do own the rest of the plot though. This is the only disclaimer, and goes for the entire story.
Harry Potter has turned Dark in a desperate attempt to overthrow Voldemort. He succeeds in his mission, but is too far into the Dark Side to be redeemed.
From the quiet sea of darkness came a piercing cry of quadruplets being born.
Well, technically they weren't quadruplets, but they were born at the exact same moment at the four corners of the wizarding universe.
A Snape, a McGonagall, a Black, and a Dumbledore.
For these four had more to celebrate than Harry Potter's victory of the Dark Lord. Strange enough, to each of these families, a baby was born, destined to be the greatest of the family.
Yes, I am talking about Severus Snape, Minerva McGonagall, Sirius Black, and Albus Dumbledore.
On the fateful night that the Dark Lord was conquered and everyone was raising their glasses to Harry Potter, these people also raised glasses to their nieces, who had been born the moment the Dark Lord had been vanquished by the 18-year old wizard who had only partially defeated him at the age of one year.
The same night, Professor Trelawney had prophesied about four girls, descended from great wizards, would overcome some evil wizard to appear in the future.
The prophecy itself is hidden in the Department of Mysteries, but it has never been investigated fully as most people believed that though Harry Potter used Dark spells to defeat Voldemort, they could not bring themselves to believe that The-Boy-Who-Lived could have possibly turned the Dark Side.
Of course, that was not all Harry's doing.
Remember that Voldemort put a bit of himself into Harry when he was one? Well, that portion kept growing as he grew older, and when he finally defeated Voldemort, the Dark Lord's soul had literally found it's home in Harry's body. Yet it was not in complete control yet, several years had to pass, and pass they did. As he was now 'of age' no one could stop him from perusing and studying the Dark Arts, and, being as gullible as they were, never suspected he had turned.
For 11 years he studied became more powerful than even Dumbledore and Voldemort. Yet he did not make his first move. Not yet.
And this is where our story begins.