BatHarry.

Then she saw him, Harry, standing tall in the shadows, his cape fluttering dramatically in the magical breeze. The Pureblood who had questioned her costume looked at him in awe. "Is that Harry Potter...as Batman?" she whispered, barely containing her excitement.

Hermione couldn't help but smirk. Harry had always had a flair for the dramatic, and he pulled off the brooding superhero look with surprising ease. His mask perfectly covered his face, but she knew it was him by the way he carried himself – with a mix of confidence and vulnerability that screamed "Bruce Wayne."

As she approached, Harry's eyes lit up behind the mask, a silent acknowledgment of their shared childhood bond and the secret they had kept all these years. He had found a way to blend the two worlds they loved so much, and she knew he had done it just for her.

They greeted each other with a nod, the tension between them palpable. Harry's deep voice rumbled through the room, "Ready for a little heroics, Wonder Woman?"

"Always, Batman," Hermione replied, her voice filled with excitement and a hint of challenge.

The party buzzed with whispers as the two iconic figures of their childhood made their way to the dance floor. The magical lights dimmed, and a rhythmic beat filled the air. It was the perfect backdrop for their covert mission – to enjoy themselves and let loose from the weight of the wizarding world.

As they danced, their movements synchronized as if they had rehearsed it a hundred times. The chemistry between them was undeniable, and the crowd parted to make way for the superheroes. Even Draco Malfoy couldn't help but watch from the sidelines, his usual smug expression replaced with something akin to admiration.

The music grew faster, and the dance floor became a whirlwind of colors and laughter. Hermione twirled around Harry, her cape billowing out like a majestic bird in flight. He caught her with ease, and they danced in perfect harmony, each step in sync with the other's, the crowd cheering them on.

"You look amazing as Wonder Woman." Harry told her as the took a break.

Hermione felt her cheeks heat up. "Thank you, Harry," she said, trying to keep her voice steady. "Your Batman costume isn't too shabby either."

He chuckled, the sound echoing through the mask. "It's all in the cape," he quipped, flicking it dramatically.

The party was in full swing, and the atmosphere was electric. Witches and wizards in various costumes – from Harry Potter characters to muggle superheroes – mingled and danced to the enchanted beats. The air was thick with laughter, spells, and the sweet scent of butterbeer and treacle tart. Hermione felt a strange thrill as she and Harry danced together, their costumes blending the lines between the wizarding world and the muggle comic books they had shared.