Packing up Grimmauld Place didn't take long. Most of what Harry owned could fit in a single enchanted trunk—books, robes, a few personal items, and, of course, his wand. Everything else in the house—the Black family heirlooms, the cursed objects, the memories of a war fought and won—was better left behind.
Still, leaving wasn't easy.
This had been his sanctuary after the war, the place where he had hidden from the world when it had all been too much. But Tony was right—he wasn't safe here. And the more Harry thought about it, the more he realized that maybe he was ready to leave this ghost-filled house behind.
Tony, of course, wasn't waiting around.
"Alright, kid, you ready for your first ride on Iron Man Airlines?" he asked, standing beside a sleek black jet parked in a hidden clearing outside London.
Harry raised an eyebrow. "You flew a jet here?"
Tony smirked. "Nah, let J.A.R.V.I.S. handle most of it. I like to make an entrance, but international travel is a pain in the ass." He patted the side of the aircraft. "Now, get in. We're going to New York."
Harry hesitated. "You sure about this?"
Tony tilted his head. "You mean the part where I'm bringing my long-lost magic-wielding son into a tower filled with some of the most powerful people on the planet? Yeah, I'm sure."
Harry gave him a look. "That sounds like a terrible idea when you say it like that."
Tony grinned. "Relax, kid. You'll fit right in."
Harry wasn't convinced, but he followed Tony onto the jet.
Hours later, the jet touched down smoothly on the private landing pad of Avengers Tower. The New York skyline stretched out in every direction, glowing brightly against the night sky.
Harry stepped off the jet and took a deep breath. The air smelled different here—cleaner, somehow, despite the sheer size of the city. Maybe it was just the thrill of being somewhere new.
Tony clapped a hand on his shoulder. "Welcome home, kid."
Home.
Harry had never really had one. Privet Drive had been a prison. Hogwarts had been a battleground. Grimmauld Place had been a hideout.
But this?
This was different.
The entrance to the tower opened with a soft hiss, and they stepped inside. Immediately, Harry was met with a sleek, futuristic interior—polished floors, glowing panels, and large open spaces that felt like something out of a science fiction film.
A voice echoed from the speakers.
"Welcome back, Mr. Stark. And welcome, Mr. Potter."
Harry blinked. "Is that—?"
"J.A.R.V.I.S.," Tony confirmed with a smirk. "Get used to him. He knows everything."
"I do try, sir," J.A.R.V.I.S. responded smoothly.
Harry shook his head, amused. "Yeah, this is going to take some getting used to."
They had barely made it into the common area when a voice called out.
"Stark! What the hell is this about you bringing in some kid?"
Harry turned just as Captain America—Steve Rogers himself—walked into the room, arms crossed. Behind him, Natasha Romanoff and Bruce Banner followed, both looking equally curious.
Tony sighed dramatically. "Jeez, Cap, way to make an entrance. And here I thought you were supposed to be welcoming."
Steve's frown deepened as his sharp blue eyes flicked to Harry. "Who is he?"
Harry squared his shoulders, his glowing emerald eyes meeting Steve's gaze without hesitation. "Harry Potter."
Steve narrowed his eyes. "Why does that name sound familiar?"
Natasha spoke up, arms crossed. "Because it's on S.H.I.E.L.D.'s list of 'unexplained anomalies.' A kid who supposedly died but then miraculously survived multiple assassination attempts. Also, there are whispers about magic."
Harry sighed. "Yeah. That was me."
Natasha studied him for a moment before raising an eyebrow at Tony. "And he's your kid?"
"Yup," Tony said casually, popping the 'p.'
Steve's jaw tightened. "You have a kid?"
Tony held up a hand. "Look, I just found out, alright? Long story short—turns out Dumbledore played puppet master, I had no idea Harry even existed, and now I'm making up for lost time. You got a problem with that?"
Steve's expression softened slightly, but he still looked skeptical. "It's not that, Stark. It's just… magic? Really?"
Harry rolled his eyes. "I am standing right here, you know."
Bruce stepped forward, adjusting his glasses. "Magic or not, his energy readings are off the charts, Tony. I've never seen anything like this."
"Yeah, that's been a theme lately," Tony muttered.
Natasha studied Harry closely before smirking. "Alright. Fine. If Stark vouches for you, you're in."
Harry raised an eyebrow. "Just like that?"
Natasha shrugged. "You'll have to prove yourself eventually. But if you're anything like your father, I'm sure we'll be in for some entertainment."
Steve sighed but finally relaxed. "Alright, Stark. You're responsible for him."
Tony smirked. "Oh, I love responsibility."
Steve shot him a look. "No reckless behavior. No throwing him into fights. If he's part of this team, we do things right."
Harry tilted his head. "Team?"
Bruce looked amused. "You do realize where you are, right?"
Harry's stomach dropped slightly as realization hit him. He wasn't just moving in with Tony.
He was moving in with the Avengers.
Over the next few days, Harry slowly adjusted to life in the tower. It was strange, being surrounded by so much technology after years of magic. But Tony made the transition easier.
They spent hours in the lab, running tests on his magic—comparing it to Arc Reactor energy, seeing how it interacted with Stark Tech, even testing if J.A.R.V.I.S. could track magical fluctuations.
And in between all that?
They talked.
About Lily. About the war. About everything that had been stolen from them.
Harry hadn't expected Tony to care so much. He had assumed the billionaire would get bored of him, treat him like an obligation.
But he didn't.
Tony was involved. He checked in, he made jokes, he pushed Harry to explore his abilities, and—more than anything—he made it clear that Harry wasn't alone.
And for the first time in years, Harry let himself believe it.
But even as he settled into this new life, a nagging thought lingered in the back of his mind.
The Death Eaters who had attacked Grimmauld Place hadn't been random stragglers.
They had known where to find him.
Which meant something bigger was coming.
And when it did, Harry and the Avengers would be ready.
