The air in the room was thick. Charged with something beyond magic, beyond science, beyond anything even the Avengers had encountered.

Thor remained kneeling, his reverence unwavering. Loki, though more composed, watched Harry like a predator studying something it couldn't quite grasp. The Avengers stood tense, uncertain, but aware that something monumental was happening.

And then—

Everything stilled.

The air froze. The lights dimmed. A weight pressed down on the room, heavy yet silent, as if the universe itself had paused.

Harry felt it first.

A cold whisper against his skin. A presence brushing against the edge of his consciousness. Not hostile. Not cruel.

But watching.

Then, as if stepping through a veil unseen by mortal eyes—

Death arrived.

The shadows in the farthest corner of the room deepened, stretching and twisting until they formed. A shape. A figure. A presence that was neither man nor beast, neither solid nor ethereal. Cloaked in shadows, with no discernible face, it simply was.

The Avengers froze. Even Thor, mighty as he was, stiffened at the presence of something that should not be possible.

Loki, however, only smirked.

And Harry?

Harry stared.

"You've come," he said quietly, his voice steady despite the weight pressing against his soul.

The presence shifted, a ripple of darkness curling around it. Then—

"I never left, Master of Death."

The voice was neither loud nor soft. Neither male nor female. It was a whisper, a storm, a breath of wind on the back of the neck. It was.

Tony took a sharp step forward, putting himself slightly in front of Harry. "Okay, yeah, no. Who the hell—what the hell—are you?"

The presence turned toward Tony. The weight in the air intensified for a fraction of a second before fading.

"I am Death."

Silence.

Pure, absolute silence.

Then—

"Awesome," Tony muttered, rubbing his temples. "Harry's actual best friend is Death. Because of course it is."

Harry ignored him, stepping forward. His glowing emerald eyes locked onto the entity before him.

"You've always been there," he said. It wasn't a question. He knew.

Death inclined its head.

"From the moment you first defied me. From the night the Dark Lord tried to take you. From every battle, every breath, every choice that should have led you to me. And yet, you remained. You endured. And so… you became mine."

Harry exhaled slowly.

"Yours," he echoed. "And what does that mean, exactly?"

The shadows around Death shifted, moving like waves in an unseen ocean.

"It means you are beyond the grasp of fate. Beyond the chains of mortal endings. You walk the line between life and eternity. You are the Master of Death—not its servant, not its prisoner, but its equal."

Thor bowed his head lower.

Loki grinned. "Oh, this is getting interesting."

Harry held Death's gaze—or where its gaze should be. "You're saying I can't die."

"No." Death's voice was patient, almost fond. "You can die, should you wish it. But death will never claim you unless you allow it. You will never be taken. You are beyond its call."

Harry's fingers curled at his sides.

It made sense now.

Why he had survived the Killing Curse twice. Why he had come back after walking into the Forbidden Forest. Why his magic had been changing, evolving in ways no wizard had ever seen.

He wasn't just a wizard anymore.

He was something else.

Something that even the gods recognized.

"So what?" Harry asked. "Am I supposed to serve you? Kill in your name? Become some kind of reaper?"

Death laughed.

A hollow, distant sound, neither cruel nor kind.

"No, my dear Harry. I have reapers aplenty. I do not need a servant. I need only watch."

Harry frowned. "Watch?"

"To see what you will become."

A chill ran down his spine.

Death stepped forward—not walking, not floating, but simply being where it chose to be. The presence lowered itself slightly, as if speaking to him alone.

"You are more than wizard, more than Stark, more than the Chosen One they made you to be."

Harry swallowed. "Then what am I?"

Death tilted its head.

"That… is for you to decide."

The weight in the room lifted.

Death turned, its presence retreating. The shadows that had formed it unraveled, fading into the air like smoke caught in the wind.

"We will meet again, Master of Death."

Then, just as suddenly as it arrived—

It was gone.

The silence stretched long after Death's departure.

Then—

"What the hell just happened?" Steve demanded, eyes sharp.

"Yeah, I'd like an explanation too," Clint muttered. "Did we just meet actual Death?"

Natasha exhaled through her nose. "Seems like it."

Tony turned to Harry. "Okay, kid. I was willing to roll with the whole 'you have magic' thing. And the whole 'Death Eaters attacked the tower' thing. And even the 'Thor kneels for you' thing. But this? This is some next-level terrifying stuff."

Harry ran a hand through his hair. "Tell me about it."

Thor finally stood, his expression unreadable. "You are unlike any mortal I have ever known, Harry Potter."

Harry sighed. "Yeah. I got that impression."

Loki, still smirking, stepped forward. "I like you," he said, his voice laced with amusement. "You are chaos and fate twisted into one. No wonder Death finds you interesting."

Harry gave him a dry look. "Glad I can entertain."

"Oh, you do more than entertain," Loki murmured. "You terrify. And that? That is power."

Tony groaned. "Fantastic. My son is Death's personal science project, and now he has Loki's approval. This is just great."

Harry turned away from the conversation, staring out the window once more.

Something had changed.

He had always felt different, known he was different. But now? Now he had confirmation.

He wasn't just Harry Potter.

He wasn't just a Stark.

He was the Master of Death.

And whatever was coming for him—whatever threat the True Order or anyone else thought they could bring—

They had no idea what they were up against.