Voldemort's Grandson teaches at Hogwarts

Chapter 1: Harry's POV

WHAT?!?!" I exclaimed. "You want Voldemort's grandson to teach at Hogwarts?" Ron, Hermione, and I were re doing our seventh year at Hogwarts, while Ginny was doing it for the first time.

"Yes Harry. I want him to teach you at Hogwarts" Dumbledore said.

"Dumbledore, you can't seriously expect us to be okay with that, can you?" Sirius asked.

"Of course not, Sirius. That is why Remus will be teaching history of magic."

"How do we know he isn't already a Death Eater?" I asked.

"He knows nothing of this world." Dumbledore answered.

"Then how will he be a teacher?"

"I said he knows nothing of this world, Harry, not that he can't teach you."

"So what are we supposed to learn? The muggle way of defense?" Ron asked.

"You'll see." Was Dumbledore's cryptic answer. "Now, I'll be taking Harry, Ron, Hermione, and Sirius to bring the boy here in an hour."

Everyone nodded. The sooner I met him the sooner I could prove that he was a Death Eater. Ron, Hermione, Ginny, and I all went up to Ron and I's bedroom so that we could talk about Mini Voldemort. 

"Do you guys think we should give him a chance?" Hermione asked.

"No. He's probably evil just like his grandfather." I answered.

"I have an idea. What we act nice, get him to trust us then see if he's a Death Eater or not." Ginny said.

"That's a brilliant idea." Ron said enthusiastically.

"What so you think he'll look like?"

"Probably like his grandfather. No nose, red eyes, and really pale." Harry said.

"Or maybe he'll look he did before he became Voldemort." Hermione countered. 

"Whatever. the important thing is that he's definitely evil." 

"Oh. Look at the time we have to go come on."

We all went downstairs to meet Dumbledore and Sirius. 

"Alright everyone. We'll be apparating to New York City."

~Time Skip to after they knock on the door~

A boy around eighteen opened the door. He looked kind of like me except with sea green eyes, and more muscular.

"Can I help you?" he asked.

"Yes, we are looking for Perseus Jackson." Dumbledore told him. Immediately he stiffened.

"What do you need him for?"

"We're here to talk to him about his grandfather. On his mother's side." Dumbledore added.

"Come in."  Once we were inside, he led us to the living room where we all sat down.

"MOM! We have some guests." the boy shouted.

"Coming Percy." A woman in her forties came in. She had blue eyes, brown hair, and a kind smile.

"Percy" she asked concernedly, "Are these people some of your friends?"

"Never seen them before in my entire life." For some reason she seemed to relax at this.

"Well, my name is Albus Dumbledore, this is Sirius Black, Hermione Granger, Ron Weasley, and Harry Potter. And may I ask what your names are?"

"I'm Sally Blofis and this is my son Percy Jackson." Sally said.