Author's Note: My little brother gave me this idea some time ago. I've been considering it for a while and figured; why not? After all, it might just work out.

He's seen me play Luigi's Mansion before. And has always been interested in it. He's even seen me beat it before.

^^ The credit for this idea, goes to him. The plot twists, OCs, and the plot's credit, goes to myself. ;)

Here's the Full Summary:

After beating King Boo and freeing Mario from the Haunted Mansion, Luigi returns back home with his brother. But the peace is short-lived after one month: Mario, Luigi, and Princess Daisy visit Princess Peach's castle to hang out. But when Luigi gets a mysterious letter telling him to return back to the newly re-built Mansion, Mario and the two princesses suspect it to be a trap; Mario goes ahead again to check it out and they follow when they don't here back from him.

However, it turns out to be a trick! And now the three are trapped inside the Mansion with no way out! With the help of Professor E. Gadd's inventions, a friendly ghost named Lynette, and some cool Ghostbuster tunes, Luigi, Princess Daisy, and Princess Peach have to save Mario again!

But who's the evil villain that captured Mario upon entering? That's the question. A new adventure's begun!

Will the trio save Mario? ...Or will they fail? And why is nothing as it seems?

Disclaimer: Luigi's Mansion belongs to Nintendo. I don't own it in any shape or form.

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Luigi's Mansion: The Continuation:

Chapter one: Back Home...

One Month Ago...

Luigi finally stopped laughing and crying hysterically from Mario's weird appearance: him sitting on the floor of Professor E. Gadd's lab with a vent around his neck dizzily.

"Luigi boy...I think that's quite enough..." E. Gadd muttered; rubbing the back of his neck awkwardly.

Luigi wiped away the remaining tears and muffled a last snicker.

"R-right! L-let's see if Mario's okay!"

Luigi and E. Gadd then walked over to the dizzy plumber and removed the machine piece from around his neck.

"Mario...are you okay?" E. Gadd asked cautiously as he tapped his face.

Luigi blinked and cautiously crept closer. It was strange; the poor plumber wasn't even responding.

"Is...is he alright, Professor?" Luigi asked.

The old professor sighed.

"I'm not sure. Let's see..."

In just a few more seconds, Mario suddenly shook his head and looked around the area in surprise.

"Hey! I'm free from that painting!"

Mario jumped up and dusted himself off. He smiled as he looked around; glad to see that King Boo was nowhere in sight and that Luigi was there.

"...Thank you for saving me, Luigi." Mario thanked; shifting his gaze over to his brother.

Luigi smiled and nodded.

"Sure, it was no problem! ...Well, despite the fact that I had to endure a night-long search for you and encounter many spooky ghosts."

The old professor smiled and pumped his fists in the air.

"And the boy did it in only ONE NIGHT! That's just amazing, isn't it, Mario?" E. Gadd mentioned.

Mario laughed.

"Yeah. It really is...do you think that he's not afraid of ghosts anymore?" Mario asked.

E. Gadd chuckled.

"Let's hope not. However, your brother did display courage countless times! I'm sure that he's over it."

Mario nodded and then walked over to Luigi.

"Well, we should probably get going now." Mario mentioned.

Luigi smiled.

"Yeah, of course." Luigi replied as he took the vacuum off his back.

E. Gadd smiled as he took the vacuum from Luigi.

"Well, I guess I'll see you boys around then. In the meantime, I will be enjoying my wonderful paintings that you helped me acquire."

Just as he said that, the old professor walked over to the machine and picked up one of the paintings; admiring it's beauty.

Mario and Luigi walked over to, and that's when Mario noticed the painting of King Boo with his Bowser suit.

"Mario, what are you looking at?" Luigi curiously asked as he looked over his shoulder.

"Huh? Oh, just the painting of King Boo. It's a pretty good looking painting. Haha...almost life-like." Mario replied happily.

Luigi's eyes widened and he stumbled back; nearly fainting as he heard that.

"L-l-l-l-l-LIFE-LIKE? Not AGAIN!"

Mario and E. Gadd exchanged odd looks as they stared at the green-clad plumber.

"...That was quite odd." E. Gadd commented. "Anyway, I do hope I see you two again. Please be careful going back to your home."

Mario and Luigi nodded. They both then exchanged goodbyes to the old professor and walked out of the lab.

"...Hey, bro?"

Luigi glanced over at Mario in a confused fashion.

"What...?"

Mario sighed.

"I was just wondering, what did you do to that treasure you acquired as you went through the mansion?" Mario asked.

Luigi smiled I memory and kept looking straight ahead as he walked.

"Oh, I gave it back to the professor. I didn't really need it; after all, I'm not too greedy with things like that." Luigi replied.

Mario closed his eyes and smiled as well.

"Good choice. But I wonder what he's going to do with that..." Mario commented.

Luigi shrugged his shoulders.

"Who knows? Maybe...maybe he'll sell it and buy a bigger lab."

XXXX

Professor E. Gadd stared at the treasure he set on the table. Honestly, he didn't really have any plans to keep it; but Luigi was a good person, not some treasure hoarder. The aged professor couldn't help but admire that.

However, the fate of the treasure was a mystery. Since the professor wasn't a hoarder of treasure himself, and didn't need an extra money.

"Hmm...what should I do with this?"

He sighed and brought his hand in his chin; rubbing it sagely, he had to think about what to do in the predicament.

Suddenly, an idea came to him in a blinding flash! He knew this was a great idea; and well-thought out as well.

. . . .He would simply bury the treasure! Then hopefully in the future, someone in need of money can accidentally come across it and get what they deserved.

The old man was sure that it was a good idea; and he was killing two birds with one stone in the process!

"Now, now...where did I put that shovel..."

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Back In The Present...

Mario hummed an upbeat tune as he walked to the mailbox outside him and his brother's home in the Mushroom Kingdom.

Curious to see if they have received any mail, the red-clad plumber opened the mail box. But he was kind of puzzled to see only one letter inside.

"(Only one letter? That's odd.)"

Mario frowned and closed the mailbox. He figured it would be better in inspect it inside privately. After all for all he knew, it could have been a trap.

. . . .Due to the fact that the Mario brothers were magnets for traps, caution was definitely needed at all times. But since that whole thing with Luigi and the haunted 'mansion', things have been oddly quite.

Mario arrived back into the small, yet cozy home and he curiously examined the light blue colored envelope. It didn't seem too suspicious; but mainly the whole thing with trouble not starting up was bothering him.

"I wonder who it's for?"

Mario's fingers then traced over some writing. He noticed the writing and glanced at it warily. In semi-neat handwriting it said: Luigi on it.

"Luigi huh? . . . .Maybe I shouldn't look at it." Mario mumbled.

Mario didn't ever really like reading his brother's mail; he always just gave it to him and didn't even let his mind wonder what it was. He just wasn't that nosy.

"...I'll leave it here for him."

Mario placed the mysterious letter on the bar and then walked back over to the table where he was previously drinking a glass of orange juice.

They both had just eaten breakfast, and Luigi went out into town to buy groceries. It was a typical morning.

And a month had passed since their creepy experience with King Boo and the 'mansion'. Since then, the topic of it hadn't really been brought up much. But they would talk occasionally about it; even telling it to various friends like Princess Peach of the kingdom, and Princess Daisy of Sarasaland.

Not that it bothered the plumber, but he just felt like things were boring-

These thoughts where cut short, Mario's ears perked up when he heard knocking at the door. And glancing over at the door's window, he quickly noticed a familiar face.

. . .It was non other then Princess Peach! A friend of the brother's that they saved on a regular basis. But due to the fact that trouble wasn't active anymore, she was safe.

Mario smiled and walked over to the door. He opened it and was greeted by Peach's warm smile.

"Hello, Mario!" Peach greeted with her slightly high-pitched singsong voice.

"Hi, Peach. What brings you by here?"

Peach giggled and stepped in.

"Well Mario, I was just taking a little stroll. Toadsworth has been bugging me all morning!" Peach replied; a sigh escaping from her towards the last part.

Mario blinked.

"Bugging you about what?"

Peach looked annoyed briefly and she walked over to the table and sat down elegantly.

"...He's just paranoid about trouble lurking around the corner; since that whole thing with King Boo tricking you and Luigi." Peach replied.

Mario nodded and sat down in the chair he was previously in. He was kind of interested in what the princess was talking about.

"...It doesn't help that the castle doesn't have much security; just my toad servants. That makes him even more paranoid." Peach added. "...But I know he means well. He just wants to make sure I'm safe."

Mario nodded and took a sip of orange juice.

"Of course he does. But Peach, he doesn't have to worry; if you're ever in any danger, we'll come rescue you no matter what." Mario mentioned.

Peach removed her gloved hand from her face and smiled.

"I know that, Mario. And I'm real glad!"

Peach then giggled and brushed her long yellow-blond hair behind her ears. Suddenly she stood up and walked over to the door; Mario followed her.

"Well, I should probably be heading back. I promised to take a warp pipe to Sarasaland and have a tennis match with Daisy." Peach said.

Mario smiled.

"Yes, good luck Peach."

Peach blushed slightly and nodded. She then stepped out the door but quickly turned around.

"Oh, wait!" Peach suddenly shouted. "How would you and Luigi like to come to my castle sometime around noon and have lunch with me and Daisy? She hasn't seen you guys since you came back!"

Mario chuckled.

"That sounds great. I'd like to see her again; and Luigi definitely would too."

Peach smirked mischievously at that.

"Oh yes, I'm positive. Well, goodbye!"

Mario waved goodbye to the princess and she walked off away from the brother's home. Mario then walked back over to the table and grabbed the empty glass of orange juice.

As he washed the glass, Mario couldn't help but think about having lunch with the two princesses. He really did care for Daisy like a sister and hoped she was doing well. He also thought about how Luigi's been talking about seeing her again.

But somehow along the way, these thoughts were paused and he began thinking about the mysterious letter Luigi received. Looking at the letter innocently laying on the counter, Mario felt a little wary-

"Hey, I'm home."

Mario was pulled away from his thoughts as he heard the door open. He turned around and saw Luigi in the doorway with a few shopping bags.

"Oh, hey bro! You're back..."

Mario then run over and grabbed two of the shopping bags.

"Yeah...hey, I saw Peach walking past the house. What did she come here for?" Luigi asked.

Mario shrugged his shoulders and put the shopping bags on the table.

"She wanted to talk for a few minutes. Oh, and she invited us to come have lunch with her and Daisy today..."

The minute Mario said 'Daisy', Luigi dropped the shopping bags.

Mario gasped at the sound and then he turned around really fast.

"Daisy? That's...good. We haven't seen her since the morning you left for the...mansion." Luigi stammered.

Mario blinked.

"I told her we would come..." Mario added; now slightly wary.

Luigi smiled.

"That's great."

Mario clasped his hands together.

"Okay. Well, I'm going to go hang out with Yoshi! See 'ya later at noon, bro." Mario said.

Mario then walked out of the house as Luigi waved goodbye. When Mario had completely left, Luigi shrugged his shoulders and walked over to the counter. He noticed the mysterious letter sitting there.

"(Is that a letter for me? It looks a little mysterious.)" Luigi thought as he stared at it.

Luigi picked up the letter and curiously traced over it. He was tempted to open it; it was that suspicious. But in the end, he shrugged his shoulders and placed it back.

"I'll just look at it later. It probably isn't too important anyway."

And with that said, Luigi smiled and left the kitchen into the living room. Leaving the mysterious letter behind.

But the questions left are: just what is with that letter? Who sent it?

Continued.

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*Silence* So...how is the first chapter?

I know this chapter doesn't really get us anywhere, but the next chapter will; don't worry. ^_-

Some things will be explained in the next chapter as well. So...sorry if this was short. -_-'

Anyway, I'm not exactly sure when I'll update. Hopefully soon. But with school and all...I'm not too sure...

Read and review! It's not that hard! :]