I've been wanted to write this for so long, and I've made some changes while I have been thinking about the story and how it supposed to go. So, this takes place after the Lightning Thief and during the Prisoner of Azkaban. Percy and Annabeth are 11 during TLT, so when the story starts, they are 12; well, at least Annabeth is since her birthday would've passed already (July 12) but Percy's birthday didn't (August 18). I changed this so that it would've worked better. I wanted Percy to be younger than Harry, so it worked out better like this. Oh, this means that Harry, Ron, and Hermione were born in 1993 while Percy, Annabeth, and Ginny were born in 1994. Everything in the PJO will still be the same. For example, the TLT quest still takes place in 2005.

Wait, one more thing. The prophecy will be that a child of the Big Three will survive to 15 years old rather than 16 and everyone will be a year younger than they are in the series so that everyone still has the same age gap. For example, once Thalia is saved from the tree, she'll be 14 rather than 15 since she's supposed to be two years old than Percy and Annabeth.

If you have any questions, leave a review or PM me. Now, onwards with the story!

Disclaimer: I'm not a middle-aged woman nor am I a middle-aged man.

Albus Dumbledore, the headmaster of the one and only Hogwarts, strolled up to the front door of the Burrow, intending to meet with the Weasley family about important matters. The old headmaster knocked a few times on the door, then waited for a moment. The oak door opened to reveal Molly Weasley, a short, plump, red-headed witch. As Dumbledore looked down at her, he saw her as a younger witch. The witch who had gone to Hogwarts and snuck out of her common room to go on a late-night stroll with her boyfriend (now husband), though she probably didn't know that he knew. As headmaster, he had to know everything that happened in Hogwarts. He had eyes everywhere.

Well, that makes it sound more mysterious, but in reality, it was mostly the house elves and paintings that watched out for him and told him what was going on in the school.

The short woman looked up, only to see the bearded face of Dumbledore. "Oh, Albus!" Molly exclaimed, surprise seeping into her voice as a smile settled on her face. "Please, come in, come in."

The tall man nodded and smiled graciously at the red-headed witch. "Thank you, Molly. May I trouble you for a cup of tea?"

Molly guided the way to the kitchen, still smiling. "Of course, Albus. Sit down, please. We've just come back from our trip yesterday. Now we've three weeks left of summer holiday instead of one like we intended." The witch filled a yellow teakettle with water before setting it carefully onto the old-fashioned stove and lit the fire. "So, to what do I owe you this visit?"

Dumbledore sighed tiredly as he sat down. "Please, bring down the rest of your family. They should all know. It's about Harry."

Molly whipped around to face the headmaster, her eyebrows creased as her maternal nature for the orphaned boy occupied her mind. "Is he alright? What's happened?" she demanded worriedly.

"No, no. He's fine, Molly," the white-haired man insisted quietly, a small smile occupying his bearded face. "I shall explain once everyone is down here."

The mother nodded, though her eyes were narrowed slightly in mistrust. "Very well then," she replied, interest and suspicion plain in her voice.

Once every member of the Weasley family (excluding Bill and Charlie, of course) was downstairs, Dumbledore stood again with a small huff. "Ah, hello everyone," he greeted warmly.

"Professor Dumbledore, what are you doing here?" Ron asked bluntly. "Is Harry alright? Mum told me that it was about Harry."

"Yes, yes, Harry is fine. What I've come to tell you is about Harry's family."

"His aunt and uncle along with their son? Those despicable people," Molly asked, muttering the last part under her breath.

"No, I do not mean the Dursleys. I mean his immediate family, the Potters. As you know, James and Lily Potter died a year after Harry born. What you didn't know, was that Harry has a younger sibling, a brother to be exact, who was two weeks old when their parents died."

"You're joking," Ron said, shaking his head.

Dumbledore's eyebrows raised. "I am most certainly not joking, Mr. Weasley."

Ron's jaw dropped, along with the rest of his family's. "Harry had a little brother?" Ron exclaimed, his voice cracking, both from puberty (XD) and sadness. It was evident that the Weasley boy felt awful for his best friend, considering that he had several siblings and he couldn't bear to think about any of them being deceased, not even Percy. "You-Know-Who killed a baby?"

Dumbledore shook his head, giving a small, comforting smile. "No, Ronald. Harry has a younger brother. He was hidden somewhere behind Harry. Voldemort-"-everyone flinched-"-didn't see him when he sent the killing curse towards Harry."

"So," Arthur sputtered, trying to make sense of the situation, "where is he now?"

"He is dwelling in the States, with Lily and Petunia's younger sister."

"How old is he?" George and Fred questioned in unison.

"He's 11, turning 12 in a week from today, on August 18th, I believe," Dumbledore replied with a thoughtful expression.

"So he's the same age as me," said Ginny, speaking up for the first time. "I wonder what he looks like," she thought quietly.

Dumbledore glanced at the young Weasley girl. "Well, last I saw of him, Ginny, he looked remarkably similar to Harry. He has black hair and green eyes, though I suppose, if I'm remembering correctly, his hair is more wavy, like Lily's, while Harry's is more like his father's hair."

Ginny's face turned as bright red as her long hair, not have been anticipating to be overheard. "Will he be coming to Hogwarts?" Percy asked, lifting a red eyebrow.

"Indeed he will, Percival. I've settled on placing him in your year, Ronald. We will likewise collect his best friend. She is a witch as well, the heiress of the Blishwick family. I suppose I shouldn't be giving them exceptional treatment, I understand, but I feel that it would be most beneficial for them to be in third-year beside you, Harry, and Hermione."

Arthur hmmed. "I thought Luna Lovegood was the heir of the Blishwick family since her mother died."

"Pandora Lovegood had an older brother, a squib, who was sent to America as a baby. He has a half-blood daughter," Albus explained, then chuckled. "Harry's younger brother and his friend will be caught up with everything they are supposed to learn in both first-year and second-year throughout the last few weeks of your summer holiday."

"How is that even possible?" Ron inquired incredulously. "Not even Hermione could do that!"

"Magic," he responded simply.

"Right," the youngest Weasley boy grumbled with an eye roll.

"What I've come here to ask is whether or not I could have Ronald and Ginevra accompany me to get the youngest Potter and his friend? I will be gathering Harry and—if her parents permit me—Hermione on the way."

"Oh, of course, you can, Albus. He and his best friend should feel as comfortable as possible to come to a different country for a wizarding school. It would be best to introduce them to someone who's their age, and then the boy's older brother and his friends," Molly reasoned, nodding.

"What's his name?" asked Arthur curiously.

"His name is Perseus Jackson, though he was christened Perseus Sirius Potter."

Molly chuckled apprehensively, her eyes enlarging quite a bit. "Sirius, as in Sirius Black, the escaped felon?"

"Yes, Molly," Dumbledore verified gravely, the smile fading from his face. "You must remember, Sirius Black was and still technically is Harry and Perseus's godfather. I fear that Sirius will seek Perseus out as well as Harry to, uh, finish the job, I guess you can say, so I gather that it would more secure for him at Hogwarts. So, we must get going as soon as possible. We'll be utilizing Side-Along apparition."

The two youngest Weasley children groaned in response. "I throw up almost every time," Ron complained, scrunching his nose up.

Arthur snickered, rather obviously entertained. "Those two dislike Side-Along apparition very much, if you couldn't tell, Albus. Good luck, kids."

Ginny stuck her tongue out at her father in response while Ron glowered at him. Molly gave her two children kisses on the cheek, beaming as she pulled away. "Say hello to Harry and Hermione for us!"

"Alright, bye, mom!" Ron spoke as he and Ginny were waving at their family.

Dumbledore waved at the family as Ron and Ginny marched up to him. "Come now, children. Hold on to my arm tightly."

And with that, they apparated to the Granger residence. Ron and Ginny collapsed to their knees in harmony. The Weasley girl had to stifle a gag while Ron didn't even try holding his gags back. Once they felt a little better, they stood and observed that they appeared outside of a small but snug-looking dwelling that seemed almost exactly like the other homes along the street. Dumbledore, along with Ron and Ginny, strolled up to the wooden doorway. Ron tapped on the door.

A tall, brown-haired man identified as Mr. Granger unlocked the door and smiled charmingly. Dumbledore smiled back before opening his mouth to converse. "You must be Mr. Granger. I am the headmaster of Hogwarts and the two redheaded children are her friends Ron and Ginny Weasley," he explained, introducing himself and the two children beside him.

Mr. Granger gave a small nod. "Yes, I recognize you two. Hold on, one moment." The man leaned back into his house. "Hermione!" he shouted. "Your headmaster and friends are here!"

"What? Professor Dumbledore is here?" Hermione yelled in astonishment.

"And your friends," Ron muttered, rolling his eyes at his witch friend.

The brunette came racing down the stairs, wheezing when she paused at the front entrance.

"Hermione, what have we told you about running down the stairs?" he scolded, though his voice wasn't stern and there was a tender smile as he peered down at his child.

"Sorry, Dad," she apologized half-heartedly, grinning. "Hi, Ron. Hi Ginny," Hermione greeted them, giving them each hugs. "Hello, Professor Dumbledore. May I ask, what are you doing here?"

Ron smirked, knowing that he was going to catch her off-guard with what he was about to say. "Harry has a brother!"

And he was not dissatisfied. "What?!" the brunette shrieked. "Harry has a brother? But... but how?"

Ginny shrugged, still not that sure about it. "He's my age. He was hiding behind Harry when Voldemort cast the killing curse at him."

She shook her head incredulously. "It's like even as a baby, he was protective," the girl of the Golden Trio said fondly.

"Then," the younger girl resumed, "while Harry was entrusted to their aunt in London while Perseus got sent to their aunt's apartment in New York."

"Perseus? Is that his name?" At the red-heads' nods, the muggle-born witch sighed. "So, are that we're going to go get him and bring him to Hogwarts soon?"

Dumbledore beamed, his eyes sparkling at his students. "Correct you are, Hermione. We'll go collect Harry, then we'll be on our way to New York. Do you object to me bringing your daughter with me, Mr. Granger?"

"No, of course not," Mr. Granger returned, still smiling. "Be safe, Hermione."

The girl hastened to put her sneakers on ere shuffling out the door. "Bye, dad!" Hermione stated, waving.

"Right then, grab onto my arm, you three. We'll be practicing Side-Along apparition, Hermione."

Then, the group of four disappeared, leaving a rather startled Mr. Granger behind. The four arrived at 4 Privet Drive, directly along the sidewalk. They appeared just in time to notice Harry aiming his wand at his uncle, who was looking like a color close to puce in his rage. Harry was gasping as he boldly declared, "I'm going. I've had enough."

The young wizard stomped out the house, still panting. "Harry?" Hermione asked tentatively.

The boy in question glanced up, looking similar to a deer caught in the headlights of car. "Hermione? Ron? What are you doing here? Wait, Ginny? P-Professor Dumbledore?"

Hermione sped towards her friend and embraced him. "Harry! Are you alright? What's happened?"

Harry dropped his trunk and gingerly placed Hedwig's cage down onto his trunk. He hugged the brunette back, squeezing his eyes shut and still breathing heavily. "I'm alright," he assured her as they separated. "I accidentally bloated my aunt (now she looks even bigger than she was before, and I thought that was impossible)—"—Hermione slapped his arm playfully for that remark—"—because she kept insulting my parents." Harry clenched his fists in fury before recommencing. "Then, I left, because I didn't want to get expelled from Hogwarts. Is that why you're here, Professor?"

Dumbledore smiled benevolently at his student. "No, Harry, that is accidental magic. It occurs all the time with children when they experience extreme emotions. I should go... repair your aunt, and then I'll explain this matter to you and Hermione," the headmaster affirmed before advancing inside the Dursley household.

"Explain what?" Harry demanded, perplexed.

Ron opened his mouth to speak, but Hermione slapped her hand over his mouth ere he could. "I think we should let Dumbledore tell you," she told Harry, glaring at Ron and stepping on his foot. "I mean, I didn't even get the complete story. I presume that Ron and Ginny were told along with the rest of their family. Am I correct?"

The two Weasley siblings nodded in unison. "Yep!" Ginny confirmed. They fell silent as Dumbledore stepped out of the Dursley home, shutting the door as he did so. He wandered towards the group, speaking at the same time. "Well, I should clarify what's going on. As I am sure you are aware, Harry, your parents died a year after you were born."

Harry narrowed his eyes imperceptibly as Dumbledore stood facing the group. He most certainly did not desire to discuss his parents at this time — especially after the entire ordeal with his aunt and uncle. "Yes, and?"

Dumbledore clearly sensed his anger because he hesitated before he spoke again. "What you do not know, is that you had a younger brother who was two weeks old when your parents died."

The young wizard tensed, his body shaking heavily in his rage, and snarled, "I had a little brother?! VOLDEMORT KILLED MY BABY BROTHER?!" As he roared, the mailbox near him exploded as a consequence of his temper. At the name "Voldemort," Ron, Ginny, and Hermione recoiled in unison as Dumbledore remained stoic.

"No, Harry, you misunderstand me. Your brother is still alive today."

That's it for this chapter! I originally wrote about 4,000 more words for this chapter, but I decided that it was too long for a first chapter and that I was rushing it. Like, Harry met Percy already and they were about to leave to London. One of the many things I have to learn about writing is pacing the story. If you've read chapter two for the Gohan in Middle School story, it's very clear how much it's been rushed just because I don't know how to pace properly and I'm excited to get to the more interesting parts. By the way, I'm still working on the Gohan in Middle School story, chapter three. Just know that I haven't forgotten about it at all. So see you guys on... Do I have an upload schedule? Well, for now, I'll post on Saturdays if the chapter is done. Bye!