"Hey Twilight, are you sure this is going to work?" A nervous Rainbow Dash said. She was holding an apple. "I've heard all about that incident with Pinkie and Fluttershy a few days ago."

"Don't worry Dash, I know this growth spell won't have any similar side effect in case the same thing happens." Twilight Sparkle said. "Okay, you ready?" She sounded really excited.

"Uhhh I guess…"

Twilight fired her horn's magic at the apple. The apple actually grew in size, but only a little. It was enough to make her happy. "Yes! It worked!"

Rainbow Dash thought the apple felt heavier and put it down on the table in front of her and Twilight, which seemingly appeared out of nowhere, but it was still surrounded by the aura of magic.

"Uhh Twilight, why is it still glowing?" Rainbow Dash asked.

Twilight laughed. "Oh that's just an animation error."

Rainbow was confused. "What?"

Twilight avoided the question. "Come on Dash there's nothing wrong with it." She took a bite. "See? Why don't you try it?" She extended her foreleg to Rainbow.

Rainbow accepted and slowly took a small bite out of the magic-engulfed apple. As the piece went on her tongue, she thought it tasted different. "Hey, this is actually good! It tastes better!" she smiled.

She saw Twilight holding her head, looking like she was in pain. The concerned Pegasus approached the lavender pony. "Twilight? Are you alright?"

Twilight half-opened her eyes and saw her friend. "D-Dash… help me…" She suddenly collapsed to the floor.

Rainbow Dash gasped. She nudged her friend's shoulder lightly. "Twilight? Twilight?!" Dash felt weak all of a sudden. She collapsed to the floor, just beside Twilight.

A few moments later, the lavender pony groaned and slowly opened her eyes. Am I… dead? She rubbed the back of her head. "Man, what happened?" As she continued rubbing her head, she touched her mane. It felt different for her. When she saw her hoof, it wasn't what she expected. She felt so confused, but was more scared. "W-what's going on here?!" Hearing her current voice gave her a clue. "Why do I sound like-" She looked to the right and gasped. She saw her own body lying on the floor, looking unconscious. "No! T-this can't be happening!" She went near her own body and lightly shook it.

The cyan Pegasus stirred. She opened her eyes, only to see herself. Her eyes widened, and she quickly stood up. "Oh no!" She found it weird to have a different voice.

"Twilight" said, "No side effects huh?" She glared at the cyan Pegasus.

"Rainbow Dash" said, "This can't be! Growth spells are not supposed to have a side effect like this! It just doesn't add up!"

"Twilight" said, "There should be a reverse spell or something! I don't wanna be the egghead!"

"Dash" glared at her. "And I don't wanna look like skittles!"

The two growled and glared at each other, ready to go into a rumble. Suddenly, somebody entered the library.

"Hey guys, what's going on?"

"S-S-Sonic? What are you doing here?" "Twilight" said.

"Sorry, were you guys busy? I guess I'll just leave th-" Sonic was cut off by "Twilight".

"NO! I-I mean… you can stay…" She blushed.

Sonic approached the blushing lavender pony. "Whoa Twilight, you okay? You don't look so good…" He felt her cheeks.

"Twilight" blushed harder. She gently held the hedgehog's hand away from her burning cheeks. "N-no I'm fine Sonic." She smiled sheepishly.

"Are you sure? I can't just let the one who offered her home for me to stay in be sick." Sonic said.

"Yeah I'm fine, don't worry about me alright?" She huffed, trying to act as tough as she can.

"If you say so. Hey Rainbow."

"Oh hey Sonic." "Dash" said.

"Sooo what were you two doing?" Sonic asked.

The cyan Pegasus replied, "Oh I just did a spell that modifies the composition of objects, increasing their size."

Sonic's eyes widened.

"Rainbow" quickly realized what she said. "I-I mean Twilight, who is over there, did a magic spell to make apples bigger." She grinned and chuckled nervously.

Sonic went closer to "Twilight" and whispered, "Hey Twilight, I think Dash is getting smarter. You better step up your game."

"Twilight" felt a little offended by what she heard. "Are you saying that I'm- I mean Dash… is dumb?!" She said angrily.

"Dash" gasped.

Sonic quickly realized what he said. "Oops. Sorry, I didn't mean it that way. I'm just trying to say that I know Twilight's really intelligent because she shows it."

"Dash" blushed at his compliment, if it was even one. She had to act like she was actually Rainbow. "Well Sonic, you don't know much about me yet. You might be surprised."

Sonic said, "Fair enough."

"So Sonic, what are you doing here anyway?" "Twilight" asked.

"Oh, just grabbing some books for Tails to read. I didn't have anything else to do so I decided to just do it for him." Sonic explained. He started going towards the bookshelves at the right side of the room. He searched on the rows where he could reach, but the book Tails was looking for wasn't in any. He came to one conclusion that the book must be in the highest parts of the bookshelves. But he didn't see any ladder. "Hey uhh Twilight, can you help me get the book Tails wants? I think it's in the highest rows."

"Rainbow Dash" nudged "Twilight", giving her the sign that Sonic was talking to her.

"Ohh umm, sure… uhh what's the title?" The lavender pony asked.

Sonic mentioned the titled, but it obviously didn't help her. She may have dropped by here a couple of times, but that doesn't mean she knows where all the books exactly are. She just acted along, hoping they would find the book with luck. "Okay, uhh I think it's here…" She pointed at the leftmost shelf. But she didn't know how to use the horn. She took some steps back to "Dash". She whispered, "Hey, how do you use this thing?" She knocked on the horn.

"Dash" gasped and narrowed her eyes at her, and whispered back, "Don't do that! There's a high chance of injury." She sighed. "Just think about the spell you want to use." She explained.

"Twilight" smirked, a playful thought coming in her mind. "Any kind of spell?"

"Now's not the time! Help Sonic!"

The lavender pony had almost forgotten about the reason why she asked her in the first place. She quickly approached the hedgehog, who has been trying to jump to find the book. "Here Sonic, let me help."

"It's about time. I look like I'm bouncing on a spring here."

"Twilight" chuckled nervously. "Sorry." She tried using her magic to levitate the book. She was able to somehow get it out of the shelf, but it was slow and shaky.

"Rainbow Dash" was impressed that she was able to do it.

Yet all of a sudden, she lost control of the book and fell on Sonic's head. "Ow." He rubbed his head.

"Sorry Sonic!"

"It's okay. I'm used to pain anyway." But inside, he actually felt like crying. Man… That edge is sharper than any spike I've encountered!

Sonic checked the book, but it wasn't the one Tails was looking for. "This isn't the one. Let's keep looking."

They searched all the shelves, and "Rainbow" just sat there watching in anticipation like a little filly. Despite the current situation, she was a little happy that she didn't have to do all those work unfolding in front of her.

"Twilight" groaned in frustation. "We're never gonna find that darn book!"

"I found it!" Sonic said.

The lavender pony furrowed her brows in anger. "Spoke too soon…" She approached the hedgehog.

"Thanks for the big help Twilight!" He gave her a thumbs up. "See you two later!" He exited the door and ran off.

Once they knew they were alone in the library, the brought the topic up again, with "Twilight" talking first. "Okay how do we fix this? I want my awesome body back!"

The cyan Pegasus paused to think about it. "I'm not so sure if there's a spell for it, and if there is, you have to do it, for obvious reasons."

"Twilight" sighed. "Is there another way?"

"Well, we can always look at books."

And that's exactly what they did, eventually finding a book about spells and its effects, and hopefully side effects as well.

"Dash" opened the book and looked for the page about the spell she used earlier. "Okay, it says here that in case a similar situation like this happens, we have to find a similar sized object that the spell was used on, but shrink it this time, all this before the sun comes down. If this happens during nighttime, wait for tomorrow." She stopped reading and looked up and had a blank expression. "Cliché…" She continued reading. "If you fail to do this before the sunset, then you can always do it the next day."

"Twilight" interrupted her. "You know, it's kinda weird hearing my own voice, and especially that you're talking smart with it!"

"Okay, we just have to find another apple, but this time we have to shrink it." The Pegasus said. "And it's still pretty early. We have a lot of time."

"Is that really the only way?" "Twilight" frowned.

"Come on Rainbow! I thought you don't give up easily? I know you can do it!" The Pegasus said.

The lavender pony was surprised at her friend, but now she was determined. "Okay then, let's go!"

The switched pair of ponies headed out of the library to find some apples.