The towering and famed Agreste mansion seemed to cast a dark shadow over the land it occupied within the city of Paris. It was almost fearsome looking at night, at least these days, with all the rumors flying around of it being haunted and people seeing ghosts within its hallways within the past year. Each rumor got darker and more silly than the last.

The voices of two teenagers, a boy and a girl with a camera around her neck, seemed to echo through the courtyard as they jumped the gate. "I heard he killed his whole family under the command of Hawk Moth," the boy said.

"Don't be dumb, Nino, Adrien Agreste is still alive. He was just sent away to another school. Besides, Hawk Moth hasn't been heard from in a long time. Maybe someone finally got him."

"Hey, I didn't say I believed it, I said I heard it."

"Then why is your voice shaking?" She asked, giggling.

"It's not!"

"Sure…"

As they walked up to the giant house, Nino spoke, "Alya, are you sure about this?"

"Like I said the last seventeen times… yes. Look, when someone gives me a challenge, I do it. You wanna be called a wimp for the rest of the year?"

"I'm fine with that! I'm not the one who accepted the dare. I'm just here because you asked me to protect you," he teased her.

"I did NOT ask you to protect me!" Alya huffed and stormed away towards the empty mansion, making her way to the front door and giving it a try. To her surprise, it opened. "Whoa…"

"I didn't think it'd be that easy," Nino admitted.

"Yeah, same here," Alya said, giving the door a small push open and walking into the darkness. They could barely see from the moonlight coming in through the windows. "Wow… look at this place." They were in a huge entrance hall, with a grand staircase divided on the left and right, leading up to the three upper floors. There was a huge portrait of the Agreste family. Gabriel Agreste seemed to leer down at them disapprovingly in the dark.

Alya shivered, feeling like she was being watched. "Okay, okay… here, just take one picture of me and we're done. That's all we really need." She quickly handed Nino the camera and went to pose in between the two large staircases to the left and right so that she would be seen within the very large entrance hall.

He took a picture and she jogged back to pick it up and inspect the picture as it came sliding out of the camera. "Okay, come on, let's go." She started to walk towards the door.

"Hey, wait a minute," he protested. "What about me?"

"What about you? I thought you didn't care."

"I don't! But… you know, as long as we're here and I didn't bring my phone, well…"

Alya giggled. "Well, that's a shame, isn't it?" She bounced away from him, holding the camera away teasingly as he chased her around for a bit.

"Come on!"

"Ah! Let go!"

"I got it fair and square! You let go!"

"No, you!"

"You!"

"You!"

A sweet, joyful voice suddenly interrupted them. "Guys, guys! Don't argue! Here! I'll take a picture of both of you!" The camera was plucked out of Alya's hands and she and Nino stared at each other in shock, both thinking the same thing. They hadn't seen any hands take the camera away!

They both turned to look at the camera seemingly floating in mid-air, until they looked closer and the moonlight revealed who, or what, was holding it.

"Say cheese!" The voice said happily, clicking the camera.

A picture slid out showing Nino and Alya both screaming at the top of their lungs and in the middle of spinning around and running for the front door.

"Um… you forgot your camera…" The voice called out with a heavy sigh. "Every single time…"

After running about a mile, the two teens looked back at the house in the distance. "She's not… following us…" Nino said breathlessly as the two relaxed. "That was… that was…"

"That was AWESOME," Alya gushed, making Nino stare at her like she was insane. "A real ghost!"

Audrey Bourgeois and André Bourgeois sat at a table as Nathalie Sancoeur looked through document after document in silence. "Well?" Audrey demanded impatiently, adjusting her oversized sunglasses. "When do we get our share of Gabriel's business?"

André cleared his throat. "Um… I believe what she's trying to say is that we've already lost so much with the disappearance of our dear Chloé, and we're simply wondering if we can get back to work as soon as possible."

Nathalie looked unimpressed as she looked back at the papers. "Unfortunately, I'm afraid your previous arrangements with Mr. Agreste are no longer in place."

"Excuse me?"

"I'm afraid that's what happens when you don't set up a contract before going into business with someone," Nathalie said as she stared down Audrey Bourgeois, unintimidated. "Now that Mr. Agreste has passed on, Adrien Agreste is the only possible heir."

"But he is…"

"Too young to take control," Nathalie said. "That's right. Mr. Agreste left the responsibility to me to handle his affairs in his absence. I've been looking at your documents. All the latest trends indicate your fashion brand is failing. And so, I have decided you will not be needed in his business." The assistant collected the papers in her hands and stood up, walking out of the office. "That will be all."

Audrey stood up in a huff. "Not needed?" She glared at her husband. "How dare that woman?! André, this is all your fault, as usual. I told you to just forge a damned contract!"

"I'm sorry, dear," André said, bowing his head. "But there's not much we can do now."

"Oh, yes there is," Audrey said, a cruel smile forming on her face.

"There is?" He asked, confused.

"Remember what Gabriel told us? Somewhere within his house is the key to an amazing treasure beyond words. He said it would be ours if the time came. Well, that time has come. That treasure belongs to us, contract or no contract."

"What are you saying?"

"No one has claimed his house yet. Gabriel's little brat will return soon, but until then, everything is up for grabs. We need to go there ourselves before it's too late."

"We're going to rob his house?" André asked in a disbelieving tone. It was not often he questioned his wife's crazy ideas.

"No," she said with a smile. "We're going to take what's rightfully ours."

The scheming wife and husband soon found themselves inside the great hall of the mansion as thunder and rain were heard outside. André was soaking wet, having been forced to open the gate for Audrey to drive through. Audrey had simply driven right inside, leaving André to chase after her desperately in the rain.

"Rather spooky, isn't it?" André said, looking around the house as he shined a flashlight around.

"Hmph," Audrey said with a sniff. "A dark, dreary old place for a dark, dreary man. How fitting."

"Hi there!" The young girl's voice rang out.

Audrey immediately hid behind her husband. "Who is that?" She whispered.

"Who is that?" André repeated.

"I, uh… I can't answer that."

"Why not?" She whispered.

"Why not?!"

"It's pretty hard to explain."

"Tell her to show herself."

"Show yourself!"

"Well… okay. Here's the deal, though. If I do, you can't scream, okay? I get that a lot. Here I come!"

Audrey and André watched as a transparent *something* came sliding down the long banister of the staircase before popping over right in front of them.

It was a pretty teenaged girl with blue hair in pigtails, a white shirt, light brown jacket and pink pants. And she was floating and completely see-through.

"Hi! I'm Marinette!"

The couple let out a loud scream.

"No-no!" Marinette gasped. "Please don't do that! You might wake-" A loud banging sound was heard and she facepalmed. "Too late… you might wanna run."

Winds suddenly howled loudly within the house and a huge gray tornado of eerie moans and evil laughter took form in the middle of the floor. André and Audrey let out loud screams again and turned and ran away, hurrying out the front door as the laughter boomed behind them.

a/n: Hi to anyone reading! WTH is this? Well, I love Miraculous AU stories and I wanted to write my own, hehe. So here's one based on one of my fav childhood movies. Thought it'd be more fun with Marinette as the funny ghost haha.

To be clear about the AU parts: Hawk Moth, Ladybug, and others exist in this story, but Adrien isn't Cat Noir (yet, hint hint ;D) and both Adrien's parents are gone. Confused? Don't worry! Everything gets an explanation!

Please review/comment if you read and enjoy! I'd really appreciate it :)