In a forest located the mushroom Kingdom, there was a large luxurious hotel seen built in an open area of the terrestrial forest, it was made of gold and features many amenities inside such as rooms, swimming pools, a dance room, a large garden situated in one floor and many more, the hotel has a total of 17 floors which contains many suites which includes: the gym, basement 1, basement 2, magic suite, the great stage, the hotel shops and many more. The master suite was located on the 17th floor where the owner of the hotel stays in. However, the hotel has a dark side concealed to the visitors who arrived at the hotel, and that is, it is owned by ghosts who are all under the command of their employer of the hotel, the hotel owner had a wicked intention of trapping a group of people into her hotel by tricking them for an invitation which they all accepted. At first, everything seemed going according to plan to the hotel owner but, all of that hard work has went down the drain which was an action conducted by one individual who captured all of her staff, including herself.

On the hotel rooftop, there were two brothers seen standing on the hotel rooftop with the red suited brother staring at a portrait with a down and anxious expression towards someone, and the other green suited brother was seen trying to calm his brother down. The brothers were known as Mario and Luigi. Mario, Luigi, Peach, three toads, and Luigi's polterpup pet were all invited to the hotel for a tranquil vacation to put their mind off of all the hard work that they've done in their Kingdom, and when they received the invitation from the hotel owner Helllen Gravely, they immediately accepted the invitation and went to the hotel for a pleasant vacation.

However, unknown to them, it was all a trap, the hotel was actually haunted with dozens of ghosts who were under the command of Hellen Gravely herself and the ghost that she has been a fan for for a long time, and that ghost was King Boo, Luigi's arch nemesis. The ghost King has trapped Mario, Peach, and the three toads in portraits leaving only Luigi left but luckily, the nervous plumber managed to escape down the laundry chute and suck up all of the ghosts with the assistance of his friend professor E.Gadd, his modified poltergust g-00 and his latest invention Gooigi.

With the courage and bravery of Luigi, he bravely fought and sucked up many of the ghosts located in different suites including their employer Hellen Gravely and her polterkitty now, Luigi has saved Mario and the toads. Only the princess Peach was left to be rescued from the portrait.

"Luigi come on! You have to save peach!" Mario said with a concerned expression towards peach.

"On it Mario." Luigi said with a nod as he aimed his flashlight at the portrait. He then shifted the flashlight into dark-light mode and shined it on the portrait. The picture frame then began to spiral in a purple colour, a brief second later, Peach was now free from the portrait, and she landed on the floor.

At first, Peach looked at her arms to see whether she was okay or not and she found out that she is already back to normal. She then looked in front of her to see Mario and Luigi.

"Mario! Luigi!" Peach said happily as the three embraced each other in a hug.

However, the hugging session was drawn to an end when Luigi saw a purple glow behind them. He turned around to see a giant purple crystal on a crown.

"Uh oh."

Mario, Luigi and Peach all broke their hug and looked behind them to see King Boo hovering in front of them with a wicked expression towards them.

"Mwahahahahaha! How temerarious of you to come and face me Luigi!" King Boo shouted. "You should've just ran away while you had the chance, then you'd be safe." He suggested. Then, anger replaced his expression.

"But instead you stayed behind and fought all the way up here to challenge me? How naive!" He said in an angry tone. "Not only that, you even sucked up all of those ghosts in the hotel with E.Gadd's frustrating inventions as usual!" He added.

"Each and every single one of them are gone into that vacuum cleaner right in front of my eyes!" He shouted in anger. "Ahem. Never mind that, just because you vacuumed up all of those ghosts doesn't mean that you can stand a chance against me." He told him.

"Hellen Gravely? Grrrr! She let you and all of your friends escape?! It just makes me so infuriated and vexed to see my victims escaping when I already trapped them in the portraits with all of my hard work you know what I mean?" King Boo asked them with a vexed expression. "Argh! Hellen Gravely, all of those other ghosts are all so futile, they can't even do a simple obligation that I respectfully requested them to do. I always have to do everything myself!" He exclaimed, then, he hovered a bit closer.

"I'm done with this nonsense Luigi! No more mercy for you, Luigi!" He yelled, then, he backed up a little "No more tricks! No more carefully laid out plans! Now it's time for raw King Boo gusto!" He finished.

"What do you mean?" Mario asked sending King Boo a glare.

King Boo replied to the plumber by charging the crystal in his crown and levitating a laboratory in the air which was E.Gadd's laboratory where he and the toads were taking shelter in. The ghost King then broke the lab revealing the preoccupied E.Gadd and Toad who all had terrified expressions on them. After that, King Boo held them aside in the air and summoned another picture frame which was bigger compared to the ones Mario, Peach, E.Gadd and the Toads were held captive in, there were bats seen flying out of the portrait too. Without any second thoughts or hesitation, King Boo shoved the professor and the toads inside of the painting.

"E.Gadd! Toads!" Luigi exclaimed with a concerned expression but, King Boo only laughed in a vile way.

"How dare you do something like this King Boo?" Peach said shooting the ghost King an angry glare but King Boo disregarded her. Then, he aimed the spiralling portrait at the three.

"Sorry to keep you all waiting, are you three ready? I don't care! Here I come!" He exclaimed as he began to bring the portrait down to them.

Mario, Peach and Luigi were all very petrified from the sight of King Boo trying to trap them all in portraits other than Luigi's polterpup pet who was seen chasing a bat for fun. A brief second later, King Boo dropped the portrait frame onto Mario, Peach and Luigi but luckily, Luigi was rescued by Polterpup who pushed Luigi out of the way, licking his right cheek in the process.

King Boo let out a vile laugh after thinking that he has succeeded in trapping the last of his targets in the portraits, but, just as he brought it up and looked at it, he noticed that someone is unaccounted for.

"Huh? One, two, three, four, five, six, sev- wait! There should be seven! Who's missing?!" King Boo exclaimed in a perplexed tone. The ghost King looked back down on the rooftop to see Luigi still standing on his ground on the rooftop. "Luigi?! What are you doing over there?! Grr, that is it, I'm sick and tired of you! I'm gonna put and end to you in the most brutal way ever!" He shouted in anger.

"Let my friends go this instance King Boo!" Luigi demanded.

"Sure, but after I do this!" King Boo replied as he casted magic on Luigi's Poltergust G-00 which got him nonplussed and perplexed at the same time. Then suddenly, multiple ghosts that Luigi captured flew out of the Poltergust G-00 including some of the ghosts who owns some suites, the hotel boss Hellen Gravely was out of the vacuum too.

"Mwuahahaha! Look what we have here, the coward who vacuumed us all up!" A Goob ghost said with an angry expression.

"Oh ho ho, I'm eager for payback for what he did to me in the opera!" Shouted Amadeus Wolfgeist in anger.

"This is gonna be satisfying when I punch him so hard in the face!" Shouted a Hammer Ghost.

Luigi was beyond petrified to even move right now from the sight of the ghosts that he has captured in the hotel escaping from his vacuum and hovering all over him.

"K-King Boo! Thank you so much for freeing us!" Hellen Gravely said with a satisfied expression. "I promise you that this time me and my staff will not make you disillusioned!" She assured him.

"Gah, I'm not intrigued in your improvements!" King Boo exclaimed with a vexed expression. "I'm only intrigued in making Luigi suffer the repercussions!" He told her.

Then, all of the ghosts prepared to attack Luigi while the anxious plumber aimed his vacuum forward and prepared to capture tall of the ghosts again. Suddenly, one of the ghosts known as an Oozer held a bomb in his right hand.

"Take this!" The Oozer exclaimed as he threw the bomb at Luigi.

When Luigi noticed this, he immediately sucked up the bomb with the use of his Poltergust-G-00, and it got stuck in the brush area. After that, he burst out the ticking bomb and it headed straight for King Boo.

"Oh no you don't!" He shouted as he fired an electrical charge at the bomb.

At first, everyone thought that the explosion was just going to create smoke that is just going to dissipate a second later but suddenly, the collision of the bomb combined with King Boo's magic began to generate a large glow.

"What is that?"

"Is this some sort of light show?"

"Is this another strobulb attempt from Luigi?"

Then, Luigi and the ghosts got their answers as the white glow grew bigger and bigger which shocked and nonplussed them all. When it expanded itself in a ginormous size, the glow began to suck everything in like the ability of Luigi's poltergust G-00 ability.

"Ahhhhh!"

"No! No! Noooo!"

"Is this another one of that professor's inventions?!"

"I don't want to be trapped again!"

Luigi tried desperately to grip onto the roof of the building with the assistance of his polterpup friend trying to keep him on the roof but unfortunately, both Polterpup and Luigi both lost their grip and footings and began to get sucked into the white glow including the portrait where Mario, Peach, the toads and professor E.Gadd all got trapped in.

"Waaaaaaaah!" Screamed Luigi as he and his polterpup pet got sucked into the white glow.

The white glow expanded itself for a brief second then disappeared, turning everything back to normal.

Author's Note

The prologue chapter of my new crossover story has been officially completed! I hope you all enjoyed it!