Celeste: A Marvel Untold

Marvel Cinematic Universe Captain America (Chris Evans Movies) The Avengers (Marvel Movies) The Falcon and the Winter Soldier (TV)
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Celeste: A Marvel Untold
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Summary
Celeste: A Marvel UntoldCeleste Astra Vale, known to most as Celeste, never asked to be a hero. She’s just trying to find her place in a world that’s constantly in chaos. As the Avengers face their biggest battles in Infinity War and Endgame, Celeste finds herself caught up in the action, but it’s the quiet moments, the personal connections, that matter most to her.At the heart of it all is Bucky Barnes—her complicated, powerful, and sometimes frustrating bond with him that’s unlike anything she’s ever known. As they navigate the battles and losses of the MCU, Celeste and Bucky’s journey is about more than just surviving the world around them—it’s about discovering who they are together, one step at a time.(Please note that the summary might not be intresting or correct with the whole fanfiction due to it still being ongoing and written. Yes the chapters aren't that long even if there might seem to be many they are quit short. There is time skips, and it does follow the movies of the infinity saga in Marvel, but only a few of the movies.)
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Battle for New York

 

The sky over New York City burned.

Celeste moved through the chaos, her boots pounding against the pavement as she dodged falling debris. The city was under siege—alien creatures poured from a gaping hole in the sky, their monstrous forms tearing through buildings, cars, and people without hesitation.

The team had assembled, each of them fighting in their own way. Thor’s hammer crackled with lightning, Steve’s shield deflected enemy fire, and Tony weaved through the skyline like a streak of light. Natasha and Clint moved with lethal precision, cutting down the enemy wherever they could.

Celeste had never seen anything like this. War was familiar, but this? This was something else entirely.

She didn't hesitate. Her knives gleamed in the sunlight as she took down a Chitauri soldier, spinning in a graceful arc before slamming the weapon into another's neck. She fought with a mix of trained efficiency and instinct, using every skill she had learned since waking in this new era.

Steve’s voice rang through the comms. "Celeste, move towards Stark Tower! We need backup near the portal!"

She didn’t need to be told twice. Sprinting across the ruined street, she slid under a wrecked taxi just as an explosion erupted behind her. Heat licked at her back, but she pushed forward, her focus unshakable.

Reaching the base of Stark Tower, she took in the scene—Loki stood atop the building, scepter in hand, an eerie glow radiating from the device that powered the portal. Thor was engaging him in battle, lightning clashing against magic. But the longer the portal remained open, the more enemies flooded through.

"We need to close it!" Celeste shouted into her comms, just as another wave of Chitauri descended upon them.

She and Natasha fought side by side, their movements fluid and efficient. At one point, Celeste felt a surge of light flicker in her palm, her body responding to the sheer adrenaline coursing through her veins. A small construct formed—barely stable, but enough. She flung it at an approaching Chitauri, watching as the glowing blade pierced its armor before fading into nothing.

Her powers were returning. Slowly. Unpredictably. But now wasn’t the time to dwell on it.

As Tony carried the missile through the portal, the tension in her chest tightened. She watched the sky shift, the massive explosion on the other side consuming the invading fleet. One by one, the creatures collapsed, lifeless. And then—

The portal closed.

Silence. The kind that only followed destruction.

Celeste exhaled, gripping her knives as she surveyed the battlefield. Bodies—both human and alien—littered the streets. The team gathered, breathing heavily, bruised, bloodied, but victorious.

Steve placed a hand on her shoulder. "You did good."

She met his gaze and nodded. But as she looked at the wreckage around them, she couldn't shake the feeling that this was just the beginning.

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