I don't own Harry Potter. All credit goes to J.K Rowling but I do own my OC, Yuki.

-Slytherin Manor-

"I can't believe those dunderheads returned!" Yuki gritted her teeth, "Not only that, but they try to attack my family! Oh, so Hell's Gate, when I see those two bastards…"

Harrison stopped his mother's ranting before addressing the others, "Who remembers Albus Dumbledore and Gellert Grindelwald?"

"Wasn't Dumbledore the previous Transfiguration Professor before me?" Minerva asked.

"And wasn't Grindelwald the last known Dark Lord?" Elowen said.

Bellatrix frowned, "But they vanished from the Wizarding world many years ago."

"Yes," Yuki's eyes turned dark red, "After Armando gave Albus a time-off to take care of his sister, Gellert disappeared. Sometime during the summer, Albus' sister died from her illness and Albus vanished as well."

Alexander crossed his arms, "So, what are they looking?"

"The Deathly Hallows," hissed Yuki.

Bellatrix widened her eyes, "I thought that was just a fairytale!"

"Oh, they're real dear," Liza walked over to the shelves and pulled out a familiar children's book. "My father met the Peverell brothers before they meet with Death. So far, we know that the Potter's and the Gaunt's are descendants to two of the three brothers."

"So, if the Deathly Hallows exists, why does Dumbledore and Grindelwald want with them?" Regulus asked.

Harrison sighed, "Albus wants to use the stone to bring back his sister while Gellert wants to be the most feared wizard in the wizard and the muggle committee."

Euphemia widened her eyes, "If Dumbledore only wants to see his sister, why does he follow that dark wizard?"

"That old coot blames the muggles for his sister's death," replied Yuki. "Ariana was taken to a muggle hospital. Sadly, Ariana died, she was too ill to be saved. Albus vow to avenge his sister's death."

Petunia gasped, "That's horrible!"

"A red stone," murmured Salazar before widening his eyes. "The red stone inside Merlin's Vault is the Resurrection Stone, grandfather?!"

Harrison nodded, "Not just the stone, but the cloak as well. But now, we gotten the wand back and it's now protected in Merlin's Vault."

"You collected all three Deathly Hallows?!" James and Sirius said.

Yuki nodded, "Since I disarmed Gellert, the Elder wand changed its allegiance to me. The Potter's owns the Cloak of Invisibility and Tommy owns the Resurrection Stone since he was originally from the Gaunt's."

The children widened their eyes.

Tom sighed, "I was adopted. My birth name was Tom Marvolo Riddle Jr."

Salazar frowned, "So, we're not related…"

"Oh, we're related to Slytherin, son," assured Tom. "But through my birth mother, Merope Riddle nee Gaunt. Gran-Yuki was blood adopted into the Slytherin bloodline. She then blood adopted my father who then adopted me, but not blood adoption."

"Why didn't you blood adopted my father, grandfather?" Salazar asked.

"I want him to live his life to the fullest and when the time comes, he can go to his next adventure happily," Harrison smiled, "But it doesn't matter if I blood adopt him or not, he is still my son, and you're my grandson. Not only that, but I have wonderful nieces and nephews."

The children had a smile on their faces.

"Okay so as long as the Deathly Hallows are in the vault, Dumbledore and Grindelwald can't get them, correct?" Alexander said.

Harrison nodded, "But we'll handle them, understand?"

Alexander, Salazar, Bellatrix, Elowen and Andromeda looked unsure, but nodded.

-Hogwarts, Sept. 1, 1971-

Harrison watched his daughter-in-law enter the Great Hall with the new first years. He smirked to see how nervous the young students showed.

Minerva walked to the brown stool where the sorting hat was waiting. Like always, the sorting hat sang his unique intro before getting picked up by Minerva. She looked down at the first-year students, "Now when I call your name, you'll come up and I'll place the sorting hat on your head. The hat will then sort you to your house."

James and the others fixed up their robes or straighten their ties.

"Sirius Alfredson – Gryffindor!"

"Lily Evans – Hufflepuff!"

Harrison watched his former mother go to the house of loyalty instead of going to the house of bravery. He thought, 'I wonder what changed.'

"David Greengrass – Slytherin!"

"Liana Knight – Ravenclaw!"

"Mary McDonald – Gryffindor!"

"Remus Lupin – Ravenclaw!"

'Another change…interesting,' thought Harrison as he watched his former honorary uncle go to the house of intelligence.

"Peter Pettigrew – Slytherin!"

Harrison glared at the slight chubby boy with second-hand robes walking to the house of cunning. He thought, 'At least he was sorted into his proper house.'

"James Potter – Gryffindor!"

"Aurora Sinistra – Ravenclaw!"

"Severus Snape – Ravenclaw!"

Harrison wasn't surprised to see his former professor sorted to his rightful house. He turned to see Tobias having a proud look on his face while Eileen was playfully pouting.

After the sorting, Harrison greeted the students, "Welcome everyone. To start, the Forbidden Forest are off-limits as there are dangerous creatures living there. Bullying will not be tolerated here. Severe punishments will be given, and privileges will be taken if you break any rules, understand?"

The students nodded.

Harrison smiled before snapping his fingers and the food appeared. The young students were in awe while the older ones started to fill up their plates.

Sirius was talking to his friend and third year, Frank Longbottom when he felt arms on top of his head. He looked up to see his cousin, standing behind him, "Reg, what the bloody hell are you doing here? Shouldn't you be at your house table?"

Regulus laughed, "At the beginning of the feast, yes, but once the food is out, everyone has free rein to move around if they like."

"Really?" James said.

Suddenly an older boy with dark red hair and light blue eyes appeared to James' right. He grinned, "Little Reggie is telling the truth, little firstie."

Another older boy with the same hair but with darker blue eyes appeared to Sirius' left. He placed his arm around Sirius, "It's been like this since Headmaster Slytherin-Fudo took charge."

"Which frankly, it's a lot better."

"No rivalry between the lions and the snakes."

Regulus sighed, "Don't confuse my cousin with your idiotic twin talk guys."

The Prewett twins grinned, "We're here to please. We're the famous Prewett pranksters."

James smirked, "Oh really?"

"We'll see about that," said Sirius before getting hit by his other cousin. "Bloody hell, Cissy! You didn't have to hit me so hard! I haven't even done anything yet!"

Narcissa crossed her arms, "Not yet, but I know that look on your face. You two better behave or you'll get busted from your parents."

"As if I'm going to get caught," murmured James. He leaned over to Sirius, "Let's meet up with the others at the seventh floor, tomorrow."

Sirius nodded before the two continued off with their meals while listening to the Prewett twins talk about their first niece, Willow Weasley.

In the morning, Severus, Remus and Lily were sitting at a round table with a few empty seats available. They were looking at their timetables when James and Sirius came to the table, half asleep.

"Try to wake up Potter or you'll end up eating your spoon," teased Severus, playfully.

"Oh, very funny Raven," said James, sarcastically.

"So, do we have any classes together?" Sirius asked, filling up his plate.

"Well, Ravenclaws and Hufflepuffs have History of Magic and Charms. Gryffindors and Hufflepuffs have Herbology and Transfiguration. Slytherins and Gryffindors have DADA and Potions," replied Remus.

"Aw no fair!" Sirius whined then looked at Lily with puppy eyes, "Lils, you wouldn't mind…"

"Oh no, Sirius," interrupted Lily, crossing her arms like an X. "You're not copying off any assignments of mine – any of us! You better listen in your classes – the same with you James!"

James and Sirius paled, "We're doomed!"

"Oh, stop being such drama queens," said Severus.

"But we need time to prank the Prewett twins!" Sirius whined.

"Why do you want to prank them?" Lily asked.

James and Sirius explained about out pranking the twins before going to their classes. While Lily, Severus and Remus went to History of Magic; James and Sirius went to DADA.

After lunch, James and the others walked up to the seventh floor to find the Room of Requirements. James walked pass a hallway three times before a double door appeared. They entered to see the room was like the playroom in Slytherin Manor.

"So, how do you plan on pranking the twins?" Severus asked, sitting on a bean bag.

James grinned as he sat on a couch and Sirius sat next to him. He took out a worn-out book, "We will be using this bad boy. It has all these brilliant pranks!"

Remus took the book before opening it and saw it belonged to Harrison. He frowned, "Jamie, this belongs to Great-Uncle Harry. Did you ask permission to use it?"

James laughed, nervously, "Um…well, about that…"

Lily gasped, "You stole it, didn't you! James! If great-uncle Harry finds out that you took it without permission, you'll be in trouble!"

"Relax, Lils," James took the book back, flipping through it, "Most of the ingredients aren't dangerous. The steps are pretty easy to follow and it's not hurtful at all."

Severus and Lily looked at each other before looking over by James' shoulders to see. After a few minutes, the two grinned, "We're in!"

"Perfect, what about you Remy?" Sirius asked.

"Oh, why the bloody hell not," Remus smiled, "It might be fun…though we have to be careful around the adults."

"Brilliant!" James said, happily. "Now, this is the prank I want to use…"

-October, Halloween-

Harrison and Liza were enjoying their feast, but that's when Harrison noticed Eileen was looking at James' table. He lifted his eyebrow, "What's eating you, Eileen?"

"Well…today in class, Sirius and James were actually paying attention and…were too quiet," replied Eileen, suspiciously.

"I agree father," Tom narrowed his eyes, slightly, "They didn't even try to prank any of their classmates during this whole week."

"You don't think they are up to something?" Minerva wondered.

Harrison looked around the Great Hall but felt nothing out of the ordinary. He grabbed his goblet when there was a sudden shout coming from the left side.

There sitting on a chair was an animal, a pony. Suddenly, every single student were turned into animals, including the stuff minus him and his wife.

James was a young fawn, Sirius was a black puppy, Remus was a small wolf pup, Severus was a young raven and Lily was a white owlet. Lucius was a white hawk, Narcissa was a swan, Regulus was a panther and the Prewett twins were black and white foxes.

Tom was a large snake, Minerva was in her animagus form – a tabby cat, Eileen was a lynx and Tobias was an older raven.

Liza couldn't hold her laughter while Harrison shook his head. The young Vampire got up and walked over to James' table. The potion didn't last long, and everyone returned to normal.

"Mr. Potter, Mr. Alfredson, Mr. Lupin, Mr. Snape and Miss Evans – office, now!"

James and the others paled a bit but got up and walked out of the Great hall.

-Headmaster Office-

"What in Merlin's name did the four of you were thinking?!" Dorea scolded. "Brewing a potion without supervision?! Did you not think for one minute that something wrong could've happen?!"

The children looked down with guilt.

"I thought I have taught you better Severus," said Eileen, disappointed.

"I'm sorry mother," Severus rubbed his eyes, "But it didn't have any dangerous ingredients so we thought it would be safe to brew."

"It's true Auntie Eileen – James, give her the recipe!" Lily said.

Eileen took the parchment from James before looking over the ingredients. She slightly narrowed her eyes, "You may have a point, but nevertheless – you all did something that could've been dangerous!"

Euphemia frowned, "I'm very disappointed with you James…all of you."

The children continued to look down at the floor.

"Ladies, let us handle this," offered Harrison. "It's been a long night, and you need your rest for class tomorrow."

The women agreed before leaving the office. The moment the door closed, Harrison placed a silent charm on the door and the adults started to laugh, uncontrollably.

The children were confused.

"Um…dad?" Sirius asked.

"Sorry son," said Daniel, recovering from his laughter. "You see kiddo, your uncles and I placed a little…wager on how long it would take for James to sneak into Harrison's study."

Charlus smirked, "I placed the book in the study. It originally belonged to Tom and me. We used it during our time at Hogwarts."

"Oh yes, I remember," Liza laughed, "I believe you and Tom set a world record of the highest pranks set on Hogwarts since Salazar and Godric themselves."

James and Sirius' mouths dropped while Severus, Remus and Lily laughed a bit.

"So…we're not in trouble?" James said.

"Oh, you're in trouble," Tobias sighed, "Well, looks like you won, Harry. Now, what is their so-called punishment?"

Harrison tapped his chin, "Mm, I guess they could clean out my attic during winter break and help Hagrid a bit."

Lily, Remus, Severus, James and Sirius sighed in relief.

"At least your attic is a lot more fun to clean than my parent's," said Sirius.

"Merlin, the last time I was up there, I found books that were older than Great-Uncle Harry!" James said.

Harrison and Liza shook their heads with amusement.

"Alright you two," Tobias smiled, "Great job making the potion, Sev and Lily. I take it that Remus took the potion to the kitchen, yes?"

Remus nodded his head, sheepishly.

"Well then, off to bed," Tom clapped his hands, "You have class tomorrow…do try to look hurt when you sit down, got it?"

The children nodded before heading out of the office.

Daniel sighed, "Charlie, remind me to never bet with Harry – ever again!"

"Here, Here," said Charlus as Tom and Tobias nodded. Harrison simply just smirked.

-Hogwarts, 1975-

The past four years, much as not changed.

In November 1971, Andromeda married Ted. They continued college for two years until Andromeda got pregnant. On May 10, 1973, Nymphadora Tonks was born.

In December 1971, Aiden married Alda. Alda is undergoing training to become the Headmistress Vampire. The last one perished a few hundred years ago.

On December 12, 1972, Arthur and Molly had their second child and named her Charlie. Lastly, in December 1973, Salazar married Bellatrix.

Harrison sighed as he looked down at the young teen beside him. He placed his hand on her shoulder, "Well, shall we make a grand entrance, young lady?"

The young teen has straight rosy gold hair with small curl at the bottom, large pale green eyes and light tan, smooth skin. She was slightly short for her age, but it didn't matter to her since her mother was also short. She has long, pointy ears, strange tattoos all over her arms and legs, though under her eyes were curved triangles and around her head was a circlet.

"Sure, Headmaster but…are you sure that I'll be safe here?"

"Positive, shall we?" Harrison assured before entering the Great hall.

The students stopped what they were doing as they watched their Headmaster walk with a lovely girl up to the Head table. Minerva walked over to Harrison's left with the sorting hat.

"Everyone, may I have your attention please? Now, I would like to introduce you to a young lady. Unfortunately, she had to leave her home for her safety. Her mother entrusted me to keep her safe and continue her education. Minerva, if you please."

"Avalon Marshall!"

Avalon felt the old hat being placed on her head before jumping a bit when she heard a voice in her mind. "Hello, Mr. Sorting Hat."

"Ah, a well-mannered child, hope you can educate some of these students and the name's Leo. Now, where do I sort you?"

"I don't have a particular house. Just as long I can feel welcome and can make great friends."

"Yes, yes, it's all in here. Trust in the Headmaster child, just like your mother did – Hufflepuff!"

Avalon smiled as Minerva removed the hat from her head.

Lily then came to her and offered her hand, "Come, you can sit with me and my friends. I'm Lily Evans, fifth year Prefect Hufflepuff."

Avalon followed Lily to a table with other students. She sat next to Lily where she introduced her to her friends.

"James Potter, fifth year Prefect Gryffindor!"

"Sirius Alfredson, fifth year Gryffindor at your service, my lady."

"Mary McDonald, fifth year Gryffindor, nice to meet you."

"Severus Snape, fifth year Prefect Ravenclaw."

"Aurora Sinistra, fifth year Prefect Ravenclaw."

"Remus Lupin, fifth year Ravenclaw."

"Regulus Black, sixth year Head Boy Slytherin. If you need anything, don't be afraid to ask any of us, got it? And welcome to Hogwarts."

Avalon smiled, "Pleasure to meet you all. I hope we become great friends."

Everyone smiled minus Remus who was blushing bright red upon seeing her smile.

James noticed and smirked, "You know, if you like, Remy can show you around."

Remus turned to James, "What?! Why not you? You're a bloody Prefect!"

James leaned over to Remus, "And you lose your chance for a girlfriend, I don't think so."

"That would be great. Thank you, Remus," replied Avalon, warmly as Remus' face was completely red.

That's when Sirius noticed something, "So, what's the deal with those silly markings and pointy ears anyway?"

"Oh, these markings are my magical tattoos from my Elven inheritance," replied Avalon. "It's common for young Elvens to get these tattoos at the coming-of-age ritual. Mine was done this past summer…before…before they attacked…"

"Who attacked you?" Regulus asked.

Avalon bit her lower lip, "I believe their names were Dumbledore and Grindelwald."

James and the others widened their eyes.

"I take it that your mother know the Headmaster, correct?" Aurora said.

Avalon nodded, "Well, my mother and his mother know each other. Lady Yuki would bring her son over to help me train while my mother and Yuki spend time together."

"What does your mother do?" Severus asked.

"She works with ancient old magic, creates ritual books and magical artifacts," Avalon smiled, "I can't wait to make my own weapons and wands when I'm older."

James and Sirius whistled.

"That's quite a dream Avalon," said Remus. "But will your mother be alright?"

"She'll be fine, but she wanted me to come here for my safety," answered Avalon, sadly.

"How long you'll be staying?" Lily asked.

"Until I get word from my mother," replied Avalon. "But we wouldn't be going back home. Lady Yuki offered her home to us until I finish my education here."

"Oh, that would mean you'll be here for Yule Ball," said Aurora, happily. She leaned over to Severus, "I know that you'll be taking me, Sev."

Severus blushed while James and Sirius snickered. He glared at them before smirking, "I don't know what's so funny gentlemen. I mean you are taking your girlfriends to the Yule Ball, correct?"

James and Sirius stopped laughing before blushing.

"Oh, you better Alfredson!" Mary glared at Sirius, "And you better not be late!"

"Alright, Alright. Merlin, I promise I won't be late," Sirius sighed.

Avalon watched Mary hit Sirius then looked at Lily, "Does that always happen?"

Lily sighed, "Yes, so get used to it. Come on, it's time to go. We have a class with the Ravenclaws."

"That's right!" Sirius said after recovering. He elbows at Remus, "Come on Moony, guide your lovely princess to her class."

Remus blushed, "Shut up Padfoot! Let's just go!"

Avalon giggled before getting up and followed Remus, Severus and Lily to Charms. She looked over at Remus, 'He's…not bad looking. Maybe…just maybe there's a future for me here in Britain…I just hope mum will be alright.'

-Break Line-

Next Chapter: Time skip to the Year of 1991