Sonata the Drama

by MythrilMoth


Sonata Doppelganger

"Well...this is awkward."

Ron looked back and forth between the two Twilights, then drooped his head, his ears dragging the ground. "Oh man, I thought we left all this identical pony twin stuff back in Ponyville!"

Celestia's lip quivered as she fought to restrain a giggle. "Well," she said, her voice quavering, "this is certainly...an unexpected development."

The newly arrived Twilight Sparkle was, for her part, staring in open-mouthed shock at the array of colorful equines before her. "Uhhhh..."

Sunset Shimmer stepped forward. "It's alright," she said. "I know this all looks...strange. I assure you there's a perfectly logical explanation for all this—"

"I jumped through a dimensional vortex," Twilight said. "It transported me to another world. An alien world. An alien world populated by small talking horses."

"Well, she's quick on the uptake," Kim said.

Twilight shook her head. "I don't know what I was expecting to find on the other side of the Hindstein-Ronan-Piedolsky Bridge, but this is..." She paused, looking around the room again. "Weird."

Princess Twilight's ears perked up. "Did you say Hindstein-Ronan-Piedolsky Bridge? That was a Hindstein-Ronan-Piedolsky Bridge? You actually created a Hindstein-Ronan-Piedolsky Bridge?!"

"Well...yeah!" Twilight said, staring at the excited pony who was suddenly two feet from her face and bouncing eagerly on her hooves. "I mean, it was kind of an accident, I was working on a completely different experiment, but..." She frowned, adjusting her glasses. "Wait. Whyyyyyy do you look and sound so much like, well...me?"

"She is you," Sunset said. "Well, the you from this dimension."

Twilight stared at her, eyes wide. "You mean the multiverse theory really is true?"

"It certainly is," Celestia said.

"Oh my gosh! This. Is. So. Amazing!" Twilight started to vibrate as she pulled out a device that looked like she'd built it in her garage and started waving it around. Things lit up and went ding on the little device as she wandered all over the room. After a full minute of this, she paused, frowned, and looked back around the room. "Wait, why are you all horses?"

Princess Twilight giggled. "Welcome to Equestria, Twilight. I'm Twilight Sparkle—well, obviously—and this is Princess Celestia, Princess Luna, and Sunset Shimmer."

"And I'm Kim Possible, and this is my boyfriend Ron," Kim chipped in. She paused, then added, "We're usually human. Me and Ron. This pony and donkey thing is new."

Twilight blinked at that. "Wait. What?" She looked around with alarm, backing up against a wall. "Oh no. You turn humans into horses? I don't wanna be turned into a horse!"

"Calm down, Twilight, nobody's gonna turn you into a horse!" Princess Twilight exclaimed, flaring her wings. She pointed a hoof at Kim and Ron. "That is just a side effect of the usual way we cross back and forth from your world to Equestria."

Twilight blinked. "The...the usual way? You mean...you've been coming and going from my world already?" Her brow furrowed, and she narrowed her eyes. "Wait a second," she said suspiciously. "It's you! You're the anomaly I've been tracking at Canterlot High School!"

This brought Sunset and Princess Twilight up short. They exchanged a guilty glance and shuffled their hooves. "Well, yeah...that's where the portal to Equestria is," Sunset said. "You mean you've been...you've been investigating that?"

"For several months now," Twilight said. "There's a lot of strange things going on at that school. Seismic disturbances, rainbows in the night sky, weird rumors..." She pushed her glasses up the bridge of her nose. "Ever since that last huge surge in readings, I've been working on finding a way to track and measure any energy anomalies coming out of CHS. I was actually going to head over there once I finished my latest experiment, but then the device I was building turned out to..." Her cheeks flushed. "Well, let's just say inventing interdimensional travel was more or less an accident."

"Great," Ron said. "Another prep school mad scientist."

Sunset frowned at that, taking a closer look at Twilight's uniform. "Prep school...Twilight, by any chance to you go to Crystal Prep?"

"Yeah," Twilight said. "You've heard of it?"

Sunset shrugged. "Yeah, I go to CHS."

Twilight blinked. "Umm...you're a horse," she said.

"Pony," Sunset corrected. "And I've been living in your world—as a human—for a long time now. And in your world, I go to CHS."

"Oh." Twilight shrugged. "Well okay then!" She paused, her brow furrowing as she leaned closer to Sunset, adjusting her glasses and squinting. "You have a horn," she noted.

"Well, I am a unicorn."

"Unicorn...?" Twilight's mouth hung slack as she looked around the room, taking in features of the assembled equines she'd missed. Her jaw dropped, her eyes bugging out. "What in the world!?"

Princess Twilight laughed. "Come on, I'll get you some tea and explain Equestria to you," she said. Gently guiding her doppelganger with one wing, she led her out of the room.

Once the two Twilights were gone, Luna spoke up for the first time since Twilight's arrival. "Oh, but for the days when you and I had such adventures, eh Sister?"

Celestia chuckled. "Twilight and her friends do get to have all the fun these days," she said. "But we have our role and they have theirs. Besides, I am far too old for adventuring..."

Sunset snorted. "That's a load," she said. "You're ageless. You could win ten races in a row on hoof or in the air and still have energy for a magic duel."

"Let me have my delusions," Celestia stage-whispered.

* * * * *

Several hours passed before the two Twilights rejoined the group. The human Twilight looked frazzled and bewildered, but at the same time excited beyond measure.

"Good news!" Princess Twilight declared. "Twilight has agreed to help us! I explained the entire situation, and as soon as Sunset and I finish our research in Starswirl's Athenaeum, we're all going back to the human world!"

Twilight adjusted her glasses. "As soon as you're all ready, come to my lab at Crystal Prep. I got enough baseline readings off Twilight and some other ponies around the castle to start building a more refined and accurate magic sensor. I should theoretically also be able to build something that'll track these crystals you're searching for."

Kim sighed gratefully. "Please and thank you," she said. "If it was just me and Ron getting caught up in parallel universe shenanigans, it wouldn't be so bad, but our entire world is in trouble."

"Hey, how often does a teenage girl get to save an entire parallel universe with science?" Twilight asked with a broad, slightly manic grin.

"You'd be surprised," Ron said flatly.