Title: Voldemort's Mistake

Rating: T

Summary: Harry finds out that Snape is his father before the third task of the Triwizard Tournament. Shortly after that he's bitten by Remus, who's visiting. This one event will prove to be Voldemort's mistake. Based on Tia Evans's Werewolf Challenge on Potions and Snitches! Harry/Hermione pairing!

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

Chapter Ten

"I will tell him," Severus said when he got fire called from Dumbledore, telling him what happened.

"I'm afraid that Harry's not going to take it well."

Severus agreed but he feared that Tom was now turning his attention to friends of his son.

"Do you still want me to visit your friend?" he asked.

"Yes," Dumbledore said, "Narcissa's house elf informed me that she would take us to the cup tomorrow despite not feeling fully recovered."

Severus nodded and cut the connection.

He had taken Harry to a small room to recover and put him in a deep sleep. He would wait until Harry was fully recovered before telling him. The child would do anything, including breaking the law, to get to Hermione.

"I wish that you were here, Lily, with some advice," Severus prayed.

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"Narcissa, you don't-."

"I don't give a damn what I don't want to do," Narcissa snarled. "I might not like muggleborns witches but that bastard ruined another person's life. We're going and that's final."

"Of course, Mrs. Malfoy," Dumbledore said.

When they arrived at Gringotts Narcissa showed her wand and demanded entrance into the LeStrange vault. The goblin agreed but only because the Ministry told them that a very dark artifact was there. Dumbledore helped her into a cart and then climbed inside.

"Are you-?"

"I'm going to be fine," Narcissa said and the cart sped off.

The LeStrange vault was one of the oldest. It was further down than even some of the families that had vaults for over a hundred years. When they came to a stop Narcissa had to be helped out. The goblin, Bloodwing, tapped several times on the door and it opened. Dumbledore watched as Narcissa slowly made her way in and grabbed something. She then turned and headed back out. No sooner had her foot touched the outside that she passed out. Dumbledore grabbed her and yelled, "GET US TO THE SURFACE."

"Of course," the goblin said and Dumbledore dragged her into the car and it sped off.

Narcissa was taken back to St. Mungo to recover from what she wasn't supposed to of done. Dumbledore placed the cup in a box that had dozens of protective wards on them. The cup would take them to the next Horcrux and he hoped that it wasn't as well protected as the cup had been.

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"Harry, I need to talk to you," Severus said when Harry had fully recovered from this month's transformation.

"What is it, dad?" he asked.

Severus took a deep breath and said, "It's about Hermione."

"What about her?" Harry asked him.

"Tom attacked her," Severus said and he could see the anger appearing. "Harry, you have to calm down."

"Did he kill her?" Harry asked, his teeth getting sharp.

"No, he turned her," Severus replied.

"WHAT!" Harry bellowed. "THAT MONSTER TURNED HER."

"Harry, you have to calm down," Severus told him. "You're not doing Hermione any good by getting this angry."

"I WILL KILL HIM," Harry roared. "I WILL MAKE HIM BOW AND OBEY ME."

Severus muttered a calming charm and slowly the affects took hold.

"Harry, I know that you're angry," Severus said, "And I would too if Lily had been bitten, but going out for revenge isn't the answer."

"It's my fault," Harry said, "If I hadn't-."

"Harry, Tom would have gotten you another way," he said, "He's doing this to show that he can still instill fear in the hearts of anyone that he wants. He turned Draco and Narcissa, which got an enemy out of Lucius."

"I'm going to kill him, father," Harry vowed.

"And I'll be there when you do," Severus vowed.

The next morning they both left the villa and headed to where Dumbledore's friend was. That man had way too many friends and he wondered if half of them were still sane. They took a cab there, the muggle not doing much talking. Severus looked over at Harry and saw that Harry didn't look excited. He knew that the news that Hermione had gotten attacked had hit Harry hard. He also knew that Harry would make good on his vow.

"We're here," Severus said as the cab pulled up.

He paid for it and both of them got out, the cab driving away.

"What is this place?" Harry asked.

"You'll find out soon enough," Severus told him and they stopped. "There are wards here."

Severus felt the wards dropping and he ushered Harry to follow him.

The house wasn't really that large, more for a small family. Severus knocked on the door and they waited. A few moments later the door opened and a house elf appeared on the other side.

"I'm Severus Snape and this is my son, Harry."

"The Master has been waiting for you," it said and he moved aside to let them enter.

They followed it down the hall and the elf knocked on the door. A command of 'enter' was heard and it opened the door to let them enter. The room was filled with all sorts of books, the kind that Miss Granger would love to get her hands on. An old woman was busy knitting and looked up when they entered.

"Dear, they're here," she called out.

"Be right down," said a much older man and Severus watched him come down. "Well, well, the famous Potions Master and his werewolf son."

The man grinned and grabbed Severus hand to shake it.

"Who are you?" Harry asked.

"My name, dear boy, is Newt Scamander."

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"I'll pick up your daughter so that she can go someplace to change," Dumbledore told Mr. and Mrs. Granger.

"Thank you," Mrs. Granger said.

"Do you have any questions?" Dumbledore asked them.

"Why would someone target our daughter?" Mr. Granger asked him.

Dumbledore wanted to tell them the truth, but decided against it. They didn't need to know it was due to the fact that she was friends with Harry and Harry's mate. When they left Dumbledore hoped that they didn't turn their back on their daughter. Hermione didn't need that.

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A/N: I decided to introduce Newt in this story.