Title: Prophecy Changed

Rating: T

Summary: When Severus is bitten by a werewolf he hands over his only daughter, Hermione, to Dumbledore and asks that she's placed with the Potter's so that she doesn't become like him. This one action changes things and introduces the Wizarding world to a new kind of witch, a demiwitch! She becomes the force to reckon with and more powerful than Voldemort ever was. Crossover of Percy Jackson!

Disclaimer: I don't own any of Rowling or Riordan's characters and I'm making nothing from this.

Chapter 1

Dumbledore hadn't expected that Mr. Snape, one of the former members of Slytherin House, would call upon him. However, he came to St. Mungo and found the twenty year old man in a ward that was for bites from magical creatures. The Healer told him that he had been bitten by a werewolf.

"What can I do for you, Mr. Snape," he asked him.

"Headmaster, you know that the Ministry won't allow me to raise my daughter."

"You have a daughter," Dumbledore said, shocked.

"Yes, I met a woman name Hecate and she delivered her. She's almost a year old and she needs to be around people that don't change into monsters once a month. I do hate doing this but I would like Hermione raised by the Potter's. They have money; they can give her whatever she wants. The Healers told me that I have to find someone to raise her or they'll place her in a magical orphanage.

"I don't think that the building could stand with her in it. Headmaster, I don't want her to end up like me. I don't want her to become a Death Eater when she grows up."

"Severus, you know what will happen," he said.

"I know," Snape said, "I talked to the man that's over the Prince vault and he said that she would still be able to gain access to it as long as I'm alive to give permission. The vault would seal when I died."

"Because you would have no heir."

"Correct."

Dumbledore sighed.

"I'll have a talk with the Potter's," Dumbledore said and then he turned to leave when he heard a horrible noise.

He turned to see green smoke coming out of Snape's mouth and eyes. Dear Merlin, was he already dying from the bite?

"I normally speak through a woman but I will speak to you. I'm the spirit of Delphi, the speaker of the prophecies of Phoebes Apollon, slayer of the mighty python; I have a prophecy for you. Do you wish to hear it?"

"Yes," Dumbledore said.

"The one with the power to defeat the Dark Lord has been, born of godly blood and a man of unknown sight that loved the doe. For she has the power that the Dark Lord only dreams of having! She will be a force to reckon with, a demiwitch with almost unlimited power, and she will strike him down where he stands, twice. Once when she defeats him and the second time when she defeats him again. And he will mark her as his magical equal, for neither can die while the other lives.

"The one with the power to defeat the Dark Lord has come, born of godly blood and a man of unknown sight that loved the doe."

The smoke vanished and Snape closed his eyes. Dumbledore stared at him and then asked himself, "What is a demiwitch?"

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"No, James and Lily will not be taking Snape's Death Eater brat into this house," Sirius said, "Snivelly's daughter can go to a magical orphanage for all we care."

"The child is almost a year old, she's not a Death Eater."

"She'll take the mark," Sirius said, "Look at who her stupid father is."

"That's enough," Dumbledore said, "You will not mark a child like that that doesn't even understand basic things. The Ministry is very clear on this. If Hermione doesn't-."

Sirius laughed.

"What's so funny?" Dumbledore asked.

"What moron names their child Hermione?"

"That's enough," Lily said, repeating Dumbledore's words, "You're not making fun of a child because of their name. And I happen to think Hermione is a pretty name."

"And this comes from someone named after a flower."

"Sirius, don't insult my wife," James said.

"As I was saying," Dumbledore said, "Hermione needs to be around people that will keep her feet on the ground. Severus is worried that Hermione might turn out to be very powerful. And there's a prophecy."

"What kind of prophecy?"

"About a child that's been born that will defeat Voldemort," Dumbledore said, "A child that will defeat him twice. She's called a demiwitch, though I've never heard of one before."

"And who made this prophecy?" Lily asked.

"Severus did," he answered.

"Oh so you're going to believe anything that Snivelly says."

"I've recorded it with the Department of Mysteries, Black, as I believe it to be a true prophecy. It seems that Severus has the sight, though he didn't know it. And it talks about the father being in-love with the doe. I believe that he was talking about himself."

"Snape doesn't love anyone but the dark arts."

"He loves Hermione enough to hand her over to a family, who has friends that hate her father," Dumbledore said, "So please forgive me if I don't believe you. Severus is a werewolf and Hermione can't live with him. He wants her to not become like him."

"Oh and him being a werewolf is supposed to make James and Lily feel sorry for him."

Dumbledore lost it.

"AND THIS COMES FROM THE SAME PERSON THAT ALMOST CAUSED HIM TO BECOME ONE DURING SIXTH YEAR, A MAN THAT CAUSED JAMES POTTER TO ALMOST DIE BECAUSE YOU JUST HAD TO HAVE A LAUGH!"

The power coming from him made Sirius shake.

"I will not have another Tom Riddle," Dumbledore snarled.

"We'll take her in," Lily said, "It's the least that I can do."

"Thank you," Dumbledore said.

"But-."

"I don't want some child to be in an orphanage just because of something that her father couldn't stop from happening," Lily said, her tone stone cold, "I would do the same thing for Remus if it had happened to him."

"But that's different."

"This conversation is over," Lily said.

That night Hermione Snape was blood adopted into the Potter house. Unknown to anyone one of the Healer was a Death Eater and told Voldemort about the prophecy, but the only part that she had heard as her boss and forced her away from the door and had her do work.. The next week Severus was the new Divination Professor, a way for him to have work and protection as one of his spies told him that Voldemort had been told about the prophecy, though only half of it, and was now hunting the child down.

Dear Merlin, did Voldemort's evil know no bounds. He told the Potter's about what had happened.

"What should we do?" Lily asked.

"Nothing, for now," Dumbledore said, "Voldemort has no idea that it's Hermione Potter that's the one that will defeat him. As long as he doesn't find out then things should be alright."

"Oh so you're going to allow James and Lily's lives to be in danger over Snape's brat."

Dumbledore turned on him.

"Voldemort wants to kill a child that will end his reign of terror. I thought that you cared for the lives of others."

"Oh I do, but I don't give a damn about that bitch."

Lily slapped him.

"Get out," Lily snarled, "Don't you dare call Hermione that horrible word. That's just as bad as when Severus called me a Mudblood."

Sirius stormed out.

Three days later, in his effort to cause Snape more pain, he made his choice. He went to Voldemort and told him that the Potter's were hiding the child that would defeat him.

"When I kill her, you will be rewarded."

"Thank you, Master," he said.

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A/N: Yes, Sirius is stupid.