Chapter Text
The cupboard was small. Too small for any child to live in, but Harry Potter wasn’t just any child. He was the kind of child people whispered about, glanced at, and forgot—conveniently.
He was five years old and had already learned three important things:
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Don’t cry.
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Don’t talk about the weird things that happen when he gets scared.
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Never ask questions about his parents.
The Dursleys made sure of that.
It was raining outside. Heavy, soaking the streets of Little Whinging with a kind of dull chill that even the blankets he curled under couldn’t fight off. His tummy hurt—he hadn’t eaten dinner again—and Dudley had thrown one of his toy trucks at him earlier. His forehead throbbed faintly, like it always did when he felt really, really wrong inside.
But tonight… tonight something was different.
His chest burned.
Not in a painful way, but like something warm and golden was curling inside him. It flickered under his skin, rushing through his veins like fire made of sunlight. He couldn’t breathe.
Harry clenched the blanket, eyes wide. The walls around him glowed faintly orange—no, gold. The air buzzed like the moments before a lightning strike.
And then—
WHOOSH.
A warm, gentle flame burst to life above his heart. It danced mid-air for a second, bright orange and impossibly alive, before fading. The warmth remained.
Harry blinked.
He wasn’t afraid.
It was the next morning that he found the diary.
He had woken up confused but somehow less alone. Like the fire had left something behind—a presence, or a voice that hadn’t quite spoken yet.
Petunia had told him to clean out the attic. “If you break anything, you’ll sleep outside,” she hissed.
He obeyed, like always.
The attic was dusty, but quiet. Light filtered in through a cracked window, painting long golden lines across the floor.
Harry was dragging a heavy box labeled LILY’S OLD STUFF when it happened. The box tumbled open and a small, battered leather-bound book fell out.
His fingers tingled the moment they touched it.
The cover had no name. The first page, though, was unmistakably written in flowing ink:
To my little Sky.
If you’re reading this, it means my Flames have found you.
I don’t know if I’m still alive. But I need you to know this:
You are not alone. You are not a freak.
You are my child—and I am one of the Arcobaleno.
One day, you’ll find us. Or we’ll find you.
Until then, follow the Flame.
—F
Harry sat frozen. A thousand questions swirled in his chest.
Arcobaleno. He didn’t know that word. But he knew it mattered. It felt realer than anything Aunt Petunia ever told him. “F”—who was F? Father? The name had a whisper of wind behind it. And "Sky"... that word burned gently behind his ribs like the flame from last night.
He flipped through the diary. Most pages were damaged—smudged ink, maybe Flame-burned—but a few fragments stood out:
"Flames awaken early in some children… especially Skies."
"If danger finds him before we do, the Sky will burn."
"Don’t trust the British Ministry. They agreed to hide him in exchange for peace."
Harry’s throat tightened. Hidden? Peace? That wasn’t love. That wasn’t family.
That night, Harry didn’t sleep.
By dawn, he had made a decision.
He packed what little he had: the diary, a broken crayon box, two slices of bread he snuck from the kitchen, and Dudley’s worn hoodie that was ten sizes too big.
The fire in his chest had returned, and this time, it guided him.
He didn’t have a plan. But the diary said follow the Flame. He didn’t know how—yet—but something inside him whispered where to go.
He slipped out the back door just as the sun broke through the clouds.
Harry Potter, age five and a half, was leaving Privet Drive.
He was going to find the Arcobaleno.