Hogwarts Express, 1991

Percy tilted his head, and paused in the open compartment door. There were two people in there.

"Um.. hi?"

"Hi." A girl with bushy hair greeted him. "My name is Hermione Granger, what's yours?"

Suddenly, a black cat meowed from its perch on the trunk, distracting Percy. Percy's face broke out in a grin. "There you are Midget!"

"M-midget?" This time, the boy spoke.

"Yeah, that's my cat."

"It's cute."

"Thanks, I got him a month ago. Gabe didn't want me to bring home an animal but I did anyway and-"

Hermione cleared her throat. "Where are you from?"

Percy blinked. "New York." He tilted his head again. "Oh yeah, my name is Percy Jackson."

"I didn't think that Americans could go to Hogwarts?"

"I didn't think so either." Percy shrugged. "My mom went to Hogwarts, and she really wanted me to go here, instead of that Illvermoney place or whatever it's called. I just hope I don't get expelled."

The boy frowned at Percy. "Expelled? Why would you get expelled?"

"I uh.. I don't do that great at school. Hey, what's your name?"

The boy rubbed the back of his head. "Neville, Neville Longbottom."

Percy grinned widely, and stuck out his hand. "Nice to meet you, Neville Longbottom, and you too Hermione."

Hermione's eyes suddenly lit up. "Have either of you done magic yet?"

Neville wrung his hands. "No, my gran won't let me."

"A pity." Hermione sighed. "Do you mind if I try out some right now? I want to practice before we get to Hogwarts."

"Go ahead." Percy watched Hermione practice her spells for a bit in silence, before he turned to Neville and started making small talk.

September, 1971

"SLYTHERIN!"

The table clad in green applauded. A girl of eleven hopped off the stool, and headed towards the table, her short hair bobbing as she looked back at her cousin in the midst of the other first years. She caught his eye and gave him a small smile. She sat down next to an older girl who beckoned her over.

"I'm glad you're here Salm."

In the background, Salm could hear her cousin being called.

The girl scowled. "You know I don't like to be called that."

"Would rather be called that stupid name Sirius calls you? Come on."

Salm looked down at her plate sadly as she finally heard the hat call Gryffindor, could feel her sister glaring at their cousin as he made his way to the table on the opposite side of the hall in complete silence. As the next person's name was being called, Salm looked up, catching her cousin's eye across the hall. I'm sorry Sirius. I tried.

1991

Percy paused as he looked around at the boats. "There's not any space for three more people." He frowned. "Here, there's a boat with two, I'll catch up with you guys when we get off."

"Are you sure?"

"Yeah, go ahead guys" Percy walked off towards the boat with one spot left and smiled at the three people in the boat, who moved over to let him sit. The trip was uneventful except for the appearance of a giant tentacle, which had all of the incoming first years pointing and whispering in fear or surprise. Percy caught up with Hermione and Neville after they landed at the castle. The three of them exchanged their awe as they finally entered the hall, the rest of their class trailing after Professor Mcgonagall.

As the kids began to be called up, Percy's hand started shaking. He clapped and sent Hermione a smile when she was sorted into Gryffindor. His heart pounded in his chest as his name was called. Percy walked up the steps to the stool. None of the houses were bad, Percy knew that, but this would affect his life for the next seven years. The hat was lowered onto his head, and as his view of the great hall was covered, all he could think was there's no way the hat is so thick I can't see any light.

1980, Montauk, New York.

Sally hastily hid her wand in her apron as she suddenly smelled the sea.

"Sally?"

Sally plastered on a fake smile, trying to hid her nervousness. "Poseidon! I wasn't sure when you were coming back."

Poseidon frowned. "What was that?"

"What was what?"

"What was that?"

"I don't know what you're talking about."

"Damnit Sally! What was that?" Poseidon took a step towards her, while Sally took a step back, her hand drifting towards where her wand was hidden. Poseidon's face was stoic, but his eyes gave away his fear. "I asked you a question Sally. Please, I need the answer."

"I told you, I don't-"

"Yes you do!" Poseidon took a deep breath. "I just damned us all and you won't even tell me what I already know!"

"I-"

"You're pregnant, Salm!"

"I'm sorry, what? How'd you find out?"

"You're pregnant and that child isn't going to survive till 12, and I'm sorry it's all my fault."

"Will you please just tell me what is going on!"

Poseidon turned away from Sally and looked out of the window. "Long ago, Zeus decreed that no line was to mix between god and magic, not after the Deathly Hallows. And that law has remained unbroken for millennia."

"The children's story? What's that got to do with this?"

"The time is not right, I cannot say, not today."

Sally's lips tightened. "You'll tell me now. This is my child!"

"I cannot." Poseidon grabbed her hands. "But I can help. He must learn his magical powers, lest he ends up hurting someone or displays the magic accidentally. I can swear Chiron to secrecy, he'll be the baby's teacher in all things not magic or godly, and when the time is right… well, there must be a magical school somewhere. And once he grows to the point where his magic no longer covers his godly scent, we shall send him to Camp Half Blood. This baby, he'll have powers unimaginable, it has to be controlled." Poseidon saw Sally open her mouth to protest. "He must learn how to control them."

Poseidon dropped her hands abruptly and moved away. "Stay near the ocean, please. Allow me to protect you while I can."

"I don't need-"

"I know you don't. But I need to know that you are safe." Poseidon stayed in place as Sally came to stand in front of him.

"You're going, aren't you."

Poseidon squeezed his eyes shut. "I cannot risk staying here for long. Forgive me."

Sally stood on her toes and gave Poseidon a small kiss. "I love you."

"I love you too." Poseidon brushed a piece of hair out of her face and cradled one hand gently over her belly. "Stay safe my love."

And with that, Poseidon vanished in a swirl, with only the smell of the sea left as a sign that he was ever there at all.

Hogwarts, 1991

Percy Jackson, although it was only his first year, had already made a name for himself at Hogwarts. The bouncy Ravenclaw didn't have many friends, at least not in his house, but he was friendly and open to everyone, and no one was ever hesitant to talk to him. Percy mostly hung out with the two Gryffindors he met on the train, Hermione and Neville. Neville seemed hesitant to be around Hermione very much though, for she was too forward and blunt. Had Percy not been there, it more than likely that Neville wouldn't talk to Hermione.

Lurched from his thoughts by Professor Snape dismissing his class, Percy walked out with Ernie Macmillan, and then parted from him as he neared the library, plopping down at an empty table and waiting for his two friends.

A few minutes went by before Hermione slammed a stack of books down into the table. Percy jumped, then grinned toothily at her. "You know, it still astounds me that you're not in Ravenclaw and I am."

Hermione shrugged, ame furrowed her eyebrows. "Why are you in Ravenclaw? You don't do anything!"

"Excuse you, I do my homework when I have to!" Percy tossed Hermione a chocolate frog from his stash on the table. "My mom says it's cause I think too fast, and I'm quick on my feet, whatever that means. I don't see how ADHD makes me fit into Ravenclaw, cause I'm pretty sure I don't. I mean, have you tried to get into the common room? It's impossible! And-"

"Got it."

Percy just raised an eyebrow at her. "Hey, where's Neville?"

"He went to lunch."

"Lunch doesn't start for 30 minutes though?"

"He was talking with Dean and Seamus, I can't read his mind!" The two stared each other down before Hermione huffed. "I heard another rumor today. What did you do now?"

"Nothing!" There was a beat of silence. "Okay I may have frozen Millicent to her seat on accident."

"Frozen?"

"I didn't mean to! She was saying bad things about Terry and we were practicing Aguamenti and it sort of happened."

Hermione stared at Percy in silence, before she reprimanded him. Percy flicked his wand in her direction and she herself was doused with water. Hermione stuttered in shock, and only just mustered up a glare a Percy, who missed it because he had bolted out of the library.

What are they doing? Percy grumbled along the corridor, his head swimming with frustrations and thoughts. Earlier that morning, two redheads cornered him on his way back from breakfast. 4 months into the school year, Percy had become infamous (not that he wasn't known before) for freezing people. Percy didn't know how, but whenever people got on his nerves, it just sort of happened. Percy hefted his satchel a little bit higher on his shoulder. Well, at least he didn't have anything planned anyway. Hermione had been busy now that she found friends in her house, not that Percy blamed her.

Percy set down his bag when he reached the strange statue he was supposed to meet the Gryffindor boys at.

"Why hello!"

Percy jumped. He gaped at the people standing in front of him. "How on earth did you get there?"

The redhead shot Percy a grin, and nudged his companion. "We've got a few tricks up our sleeves. Come on, we'll show you."

And that was the start of an awesome friendship.