Author's Note: Ladies and Gentlemen... Rattler is back once again with some new crossover madness!

This one might take me a bit longer to post as I am actually... not done writing it. CLOSE, but not quite as of right now.

Anyways... special guest Sunset Shimmer will do the disclaimer.

Sunset: Rattler20200 owns nothing but the plot of the story.

Chapter 1

Shadows

Medieval Europe

She sighed as she looked up into the sky. They had originally come to this country by order of King Arthur to try and negotiate a peaceful resolution to a rising situation. But the King they had been sent to negotiate with would have none of it and attacked the Knights almost on sight. His dying words still hung over her head, a vow of vengeance upon their descendants.

Someone came up next to her. Looking to her right, she saw Merlin leaning against his staff.

"You're worried about the future?" he asked before turning to face him.

"And you are not?" she asked in return.

Merlin chuckled as he adjusted his grip on his staff and turned to face the redhead.

"Of course I am Gwenevere," he replied. "But… it is not our tale to tell."

Gwenevere rolled her eyes and slung her bow across her back. She still couldn't help but worry for the future. The dark King was in possession of powerful magic. If anyone was capable of carrying out the threat… it was him. But at the same time… she somehow knew Merlin was right.

"Merlin… can I ask you something?" she asked.

"You already did," he chuckled before adjusting his hat.

"Why does Arthur sometimes call you Starswirl?"

The only response she got… was a growing, knowing smile on the old man's face.

Westside Island

Present Day

She ran as fast as her legs could carry her. Ever since the accident that had taken her parents from her, she had been hounded by spirits that seemed to want her for some reason.

Splashing through puddles, she didn't care if she got wet. She just wanted to get away from the ghost chasing her down the street. While the weather had cleared up, the ground was still wet from the morning rain. The cackling behind her urged her on despite her growing fatigue. All thoughts of getting to school dashed the moment the spirit ambushed her.

Suddenly she felt something grab her from behind, and her feet left the ground entirely.

"I have you now Gwenevere!"

"LET ME GO!"

She thrashed in the spirits grip, her legs kicking wildly in the air. Why this thing kept calling her Gwenevere was beyond her. But hell if she wasn't going to fight with everything she had to get free, flailing and screaming all the way.

The Riot Act she was giving attracted the attention of someone at the church, as the local Preacher came out… carrying a spray bottle. He took one look at the situation and ran over, holding up the bottle.

"My child! Here! Use this!" he called out before throwing the bottle. She caught it, unsure what he meant, but decided anything was better than doing nothing. Pointing the business end over her shoulder, she pulled the trigger and spritzed the ghost in the face. Crying out as if it had been burned, the ghost let her go and flew off, dropping her in the process. Her legs gave out and she collapsed to the ground. The Preacher ran over and brushed some of her red and gold hair out of her face.

"Are you alright?" he asked.

"I just got chased by a ghost Father Michael," she replied, taking a deep breath. "What was in that spray bottle anyways?"

"Holy Water," Father Michael replied before smiling. "And before you ask… all water in a church is Holy."

"Bad joke," she said, suppressing a laugh as he helped her back to her feet.

"Come… you will be safe inside. I'll call Principal Aleena and let her know where you are."

As the pair entered the church, a young girl about the same age as the recent victim was sweeping the floor and noticed them enter. At first she had a concerned look on her face, until she saw the redhead. With a scowl, she went back to what she was doing.

"Starlight, would you please get some hot chocolate?" Father Michael asked.

"Don't see why we should help that Mainlander," Starlight Glimmer growled. "She..."

"Is in need, and it is our duty to help those in need," Father Michael countered. "Now please… hot chocolate."

With a huff, Starlight propped the broom up and left. Father Michael took the redhead over to a more comfortable spot and sat her down before pulling out a rag and cleaning her face a bit.

"She still hates me I see," she sighed.

"Starlight is a bit more stubborn than I'd like for an apprentice, but… I feel she just needs time."

After a few minutes, Starlight returned with a mug of steaming Hot Chocolate. After handing it over to the redhead, Starlight returned to sweeping the floor, as far away from the redhead as possible.

Once he was confident that his charge was safe for the moment, Father Michael entered his office and picked up the phone.

"Hello?" Principal Aleena Hedge answered the phone as she ran a hand through her violet hair.

"Aleena… its Father Michael. Something has happened."

"What?" Principal Aleena asked as she instantly sat up behind her desk. While it was a small high school, Westside Island High was, like the rest of the town, a close knit community.

"Sunset was attacked by a spirit. She's here at the church now."

Closing her eyes, Aleena tried to think of what to do now. Her hand dropped down to her desk, and landed on a newspaper. Opening her eyes, she looked at the article her hand landed on.

High School Heroes

Canterlot saved from Paranormal Horrors

Blinking in surprise, Aleena picked up the newspaper and quickly read the article before getting an idea.

"Father Michael… I'll need to call you back," she said. "Take care of Sunset for me will you?"

"Of course Aleena. She will be safe here."

Hanging up the phone, Aleena scanned the article for key words.

Canterlot High.

Ghosts.

Principal Celestia.

Ghostbusters.

With a smile, Aleena pressed 0 on the phone and waited for a response.

"Operator? Get me the number for Canterlot High School."

After a moment, she was put through to Canterlot High's office, where she asked to speak with the Principal. A moment later…

"Tia… Good to hear your voice again. Wish this was a social call but… I need your help with something..."

As she put down the newspaper to talk with her old friend, she failed to notice that the picture of the Ghostbusters had one VERY familiar face among them. A young woman… with red and gold hair.

Canterlot High

Things were relatively quiet for a change. The excitement from the Nightmare Moon Incident had died down, as had paranormal activity around town. The events at Camp Everfree were still fresh in everyone's minds, but… once again the Ghostbuster Girls had stepped up to the plate, even if they didn't actually bring all their gear. Twilight had brought a PKE meter, but for a while had actually doubted herself because of a resurgent fear of becoming Midnight Sparkle again. A fear that was truly put to bed with help from her friends.

It took a little time, but even Slimer was accepted at Canterlot High as a bit of a mascot for the Ghostbusters. No one was shying away from him anymore, and students actually greeted him as he flew down the hallways. Granny Smith even took in the little spud every once in a while to try and teach him how to cook… without slimming everything in sight.

Kylie Griffin had been adopted by Twilight's parents, and was now running an occult bookstore in downtown Canterlot. Ever since the Nightmare Moon Incident, business had been booming. In honor of the original team, she named the store Ray's Occults. Shining Armor still had no idea what to make of Kylie, while Twilight was the most open to it. For reasons she never revealed to her brother of course.

It was shaping up to be just another day at Canterlot High. In one particular class, one particular chromatic haired athlete sat at her desk reading… of all things… a manga. Rainbow Dash was an unexpected presence in Ms. Fujibayashi's Japanese class, but was also… a surprisingly attentive student, unlike in Math or English class where she tended to doze off. And when it came to Chemistry… Rainbow Dash could be considered tranquilized on the spot as the Chemistry teacher had a rather dull, monotone voice. All students had to take a foreign language class at some point, and when asked, Rainbow Dash just said she kicked a ball into a net blindfolded to decide what foreign language to take. What she didn't reveal to her friends was that she was actually a fan of Japanese Anime, and was very eager to learn the language so she could be less reliant on subtitles. And she also wanted ammo for insults no one could respond to.

Also… Japanese class didn't frown on reading manga in class.

"Will the Ghostbusters please report to the Principal's Office."

Looking up at the unexpected announcement, Rainbow Dash closed her manga and slipped it into her backpack before standing up. The rest of the class did look at her for a moment before going back to their assignments. Slinging her backpack over her shoulder, Rainbow Dash approached Ms. Fujibayashi's desk and gave a respectful bow.

"Sorry Sensei, but duty calls," she said.

"I understand," Ms. Fujibayashi replied with a smile. "Keep up with your studies, and I'll see you when you get back."

"Arigato," Rainbow Dash replied. "Sayōnara."

With a smile, Rainbow Dash slipped out the door and into the hallway. A minute later she was joined by Applejack, with Pinkie Pie skipping in behind them.

"What'cha reckon we gettin' called for?" Applejack drawled.

"Don't know. But its been a while since we got a call so…" Rainbow Dash replied. "Guess we'll find out."

Ever since the Nightmare Moon Incident, the girls had gotten even closer than ever before. Vinyl Scratch actually said they might as well call each other sisters with how close knit their group had become over time.

Fluttershy came out of the a classroom and joined the group, sliding a textbook into her backpack before slinging it over her shoulder. While still timid, everyone could tell that all the magic and ghost stuff gave her a drive to help her friends. If she was pushed, you'd see another side of the pink haired quiet girl. And everyone knows… its the quiet ones you have to worry about.

Rarity soon ran up to the group, having come from the Gym so she was a little out of breath… and carrying a fencing Saber. Like Fluttershy, Rarity had changed a bit herself thanks to everything. While she was still a bit of a drama queen and fashionista, Rarity gained a bit of a sense of duty and could be counted on to stand with her friends when the chips were down.

Finally, Twilight Sparkle and Sunset Shimmer joined the group. The former taking a quick moment to clean her glasses as the latter… made a quick stop at one particular vending machine.

"Have a feeling we might not make it to lunch," she said as she dropped some change into the machine… and was denied her candy bar.

"I hate that machine..." Rainbow Dash deadpanned. "ALWAYS eats my quarters."

"Ah think everyone hates that machine," Applejack drawled.

Sunset Shimmer had an annoyed look on her face before reaching into her pocket and producing… a small Swiss Army Knife. She proceeded to pry the panel open, traced some wires, and a minute later the snack she wanted dropped. A minute later she closed up the panel and put the contraband knife away and claimed her treat.

"Well… I did pay for it," she said.

"Did you just hotwire the vending machine?" Twilight asked.

"I only use my skills for good now," Sunset said with a smirk.

Soon after, the group reached the door to the Principal's office. Slimer was already present, patiently waiting for the team. With a silent nod, Sunset opened the door and stepped in.

"Thank you for coming," Principal Celestia said. Nearby stood her sister, Vice Principal Luna.

"We got a job?" Sunset asked.

"I just got off the phone with an old college friend of mine, Aleena Hedge. She's Principal for Westside Island High School. Apparently… there's been some paranormal activity on the island and… it just reached a red line."

The girls and Slimer looked at each other, a mix of emotions present. The dominant one however… was concern.

"What happened?" Twilight asked.

"One of her students was attacked today. Physically."

That sold it. This was a priority call.

"We'll take the job," Sunset said.

"Thank you," Celestia said with a smile before getting serious again. "I have no idea how long this will take, but I will see to it your assignments are waved for the duration. In exchange however, you will be graded on your performance in the field. Fair trade, as this is essentially real world experience that may help you better than anything you'll learn in a textbook."

"We don't know the full extent of what's happening out there… so be careful," Luna added as she leaned against the wall with her arms crossed over her chest. "You'll have to take a ferry over to Westside Island, so I suggest you pack everything you need."