The brilliant sunshine beamed through Twilight Sparkle's window, basking onto her face. She groaned as the light began to wake her up, she was quite tired after Winter Wrap Up yesterday.

Although she was still exhausted, she was eager to get out of bed. It was the first day of Spring, and she was excited. Not for the spirit of the season, but her friends had promised to assist her in spring cleaning. She wanted to get the job done as soon as possible to leave the rest of the month free.

"Spike, wake up." she said, nudging his bed.

"Uhhhh..." Spike groaned as he tried to ignore her. "It's still early, I want to sleep."

"It's the first day of Spring, we have to take the books off the bookcases before the girls get here."

"Uh, why don't you do that, I'll join you in a second."

"I'm glad you could come over and help me." Twilight said to her friends as they entered the library. "Spring cleaning is no easy task."

"No problem, sugarcube." Applejack replied cheerfully.

"Yeah, if we all work together, it'll get done in no time." Pinkie added.

They walked into the main area to find all of the bookcases bare, and the books all in neat piles around the room.

"Spike and I have already taken the books off the shelves, now we just need to dust everything." Twilight said.

Twilight gave each of the ponies a feather duster and assigned them to different sections of the library. Rainbow Dash, Fluttershy, and Applejack were to clean the top half of the shelves, and Rarity, Pinkie Pie, Spike, and Twilight all cleaned the rest of it.

Applejack grabbed a duster in her mouth and climbed the ladder to the top of the bookcases near the stairs. She brushed along the shelves, as did everypony else.

She leaned out to the side, attempting to dust the remaining area of the shelf, stretching her neck as far out as it would go. Despite leaning as far out as she could, she still couldn't quite reach the last bookcase without falling.

"Do you need some help?" Twilight asked as Applejack continued to stretch out, determined to reach the shelf. "You're going to hurt yourself."

"Nah, I got it." she replied, her voice barely understandable by the duster between her teeth. She tried to reach a slight bit further, but was once again unsuccessful. Her hoof that she was using to grasp onto the top rung slipped, causing Applejack to fall.

"Ah!" Twilight yelled as Applejack toppled down on top of her. "What did I just tell you?"

"Uh, sorry Twilight." Applejack said as she got up and dusted herself off. "Lemme try that again."

Applejack once again began climbing the ladder, but was stopped as Twilight grabbed her with her magic. She levitated her over to the shelf that she was trying so desperately to reach.

"There, now try." she said, a slightly annoyed tone in her voice.

"Oh, uh, thanks."

Applejack finally wiped the shelf down, before Twilight returned her to the floor. As Twilight was lowering her, she noticed something quite peculiar in the back of the shelf. She wasn't sure what it was, as she didn't quite get a decent look at it.

"Twilight, I think I saw something up there." she said when her hooves landed on the ground again.

"Really? Like what?" Twilight asked.

"I'm not sure, take me back up."

Twilight once again lifted Applejack into the air, the other five crowded around her, just as curious as them to know what she saw.

Applejack took another look at what was up there. A part of the back of the shelf have been carved out, and a book was filling the gap.

"Hey Twilight, check this out." she said, pulling the book out of the gap and tossing it onto the floor.

Twilight walked over to the book, which was covered in dust, and picked it up. She dropped Applejack onto the floor, and wiped the dust off the cover. Everyone gathered around her, eager to find out what the hidden book was and what it contained.

"Hmm...." Twilight said, examining the cover. "Lady Lucinda's Book of Secret and Rare Spells. That's odd. I wonder why I've never found this before. I've read every book at least once."

"Yeah, and who's Lady Lucinda?" Rainbow Dash asked.

"I'm not sure, I think I've heard that name before."

Twilight walked over to a pile of books beside the door and began looking through them. She browsed through the stack, reading the titles in her head. She pulled a book out from the middle of the stack and opened it up. She flicked through a few pages, before stopping in the middle.

"Here. This is Lady Lucinda." she said, reading the page.

The other six gathered around her and looked at the picture of the amber unicorn.

"Lucinda von Linz was a famous unicorn," Twilight read. "famous for her work in discovering new spells. Many of these spells were lost when she perished in an attack on Canterlot. It is often believed that she kept a journal containing her spells, but such an item has never been found."

Twilight looked back up at her friends.

"Don't you see, Twilight?" Pinkie Pie said, picking up the mysterious book. "This must be Lady Lucinda's magic journal, containing all of her secret spells."

"Maybe, I guess we'll have to find out." Twilight said as she grabbed the book off Pinkie. She opened the book to a random page and looked inside. They were certainly spells, but what they did, she was unsure as none of them had titles.

"Huh, that's odd." she said.

"What is?" Spike asked.

"None of these spells actually tell me what they do, so I have no idea what type of magic this is."

"Can't you tell from the spells?"

"I don't know, maybe we could take this to Princess Celestia? She might know what it is."

"No way, Twilight. That'd take way too long." Rainbow Dash said. "Just try one out, what's the worst that could happen?" Rainbow Dash was quite eager, those spells could do anything.

Twilight looked at Rainbow Dash with a stern expression.

"The worst that could happen? Anything could happen! That's why I think before I do things." she said.

"Well, um..." Rainbow Dash said, trying to make up a reason for Twilight to try a spell. "You're an avid student, right?"

"Yeah, so?"

"Well, the more spells you try, the better you'll be at magic, the more impressed Celestia will be. You want her to be proud of you, right?"

"Well, I guess so..."

"Exactly! Come on, just one."

"Well, I guess it can't hurt to try out just one spell."

Twilight put her hoof down on a page in the middle of the book. She took a look at the spell, and began browsing through it.

"Okay, I'll try one spell, but that's it."

She recited the spell a few times in her head, before attempting it.

Her horn glowed it's purple aura, a bright light forming at the tip. The light got brighter and brighter, until it retracted into her horn, and blasted out, filling the room with blinding light.

Twilight and her friends all dropped to the floor as a shockwave blasted out from Twilight's horn, except for Spike who had taken cover behind the desk before she casted the spell.

Twilight stood back up and shook her head. She looked around the room, but was only able to see the thick dust cloud that swarmed in the house.

"Is everypony okay?" she coughed as she wandered through the dust.

"Yeah, I'm fine." Rainbow Dash said.

"I'm okay." Pinkie Pie said.

"What happened?" Futtershy asked.

"I'm not sure."

Suddenly, the dust cloud settled, and they were able to see each other again.

"Good, everyone's okay." Twilight said, being able to see the other six in the room. "Does anyone know what the spell did?"

Her friends didn't answer.

"Girls?" she asked, holding the spell book.

The room remained silent, her friends still not saying anything. Rather, they were all staring behind Twilight, their mouths agape.

"Girls, what's wrong?" Twilight said nervously. "What's behind me?"

"Tha- That's not possible..." Rarity said.

"What?" Twilight said, slowly turning around.

Upon turning around, she found herself staring at a most curious sight. The moment she saw it, she gasped and dropped the book.

She continued staring at the cluster of ponies which had suddenly appeared in the room. It took Twilight a moment to identify who they were, but even then, she still didn't believe it. Lying behind her, unconscious on the floor, was her and her friends, or more likely just duplicates made from the mysterious spell...

"Err... My head..." Twilight groaned as she began to regain consciousness. She opened her eyes and saw her friends, also awakening.

She rubbed her eyes and looked up, and screamed when she saw herself and her friends watching her.

"Ah! What's going on?!" she exclaimed.

"Uh, I think I just accidentally cloned us all." Twilight replied.

"Cloned?" her duplicate said, starting calming down. "That's weird."

Her friends also looked up and saw themselves, just as unsure as Twilight.

"Twilight, what's going on?" Rarity's duplicate said. "Why is there two of everyone?"

"She says she accidentally cloned herself and her friends." she replied, pointing at Twilight.

Twilight picked the book up again and she and her duplicate began reading it as the others got into conversation with themselves.

"So I used this spell." Twilight said to herself. "I can just use this other spell to send you six back to where you came from."

"Okay, makes sense." her clone said. "We'll do that."

"So you're the exact same as me?" Rainbow Dash asked her doppelgänger.

"I guess so." she replied, shrugging her shoulders. "I'm not completely sure."

"Well, you look the same as me. Do you have the same memories as me?"

"Well, I think so."

"What's the last thing you can remember?"

"Uh, I remember going to bed last night..." she said as she thought to herself. "I remember I all went to Sugarcube Corner yesterday for Scootaloo's birthday."

"Hey, I did that yesterday. I guess your memories are the same as mine, aside from today."

The ten ponies continued chatting with each other like nothing was weird, until they were interrupted by the two Twilights.

"Okay, girls. As much fun as this was, I'm afraid I have to reverse the spell." Twilight said.

"Reverse the spell?" Rainbow Dash's duplicate said. "What do you mean?"

"I mean that I'm going to send you back to where you came from."

"You can't do that!"

Twilight was a little unsure about that response. "What? You aren't meant to be here, you're just copies of us."

"So? We're still ponies, aren't we?"

"I... guess so."

"Then we're worth keeping alive."

Twilight could see where this was going, and was afraid of this.

"Rainbow Dash, calm down." Twilight's clone said. "We aren't even meant to be here, we were just an accident."

"But I don't want to be killed. I'm Rainbow Dash, I'm just as good as her." she said, pointing at the original Rainbow Dash.

"As much as I'd hate to cause a fuss," Applejack's gänger said. "But I have to agree with Rainbow Dash. It just doesn't seem right to get rid of us. I mean, why are you any better than us? Why can't we get rid of you six?"

"Yeah!" the other three clones agreed.

Twilight and her friends all took a step backwards.

"What are you saying?" Twilight asked.

"Nothin'..." Applejack said. "All I'm sayin' is that we're just as good as y'all. Why should you send us back when we could just as easily do the same to you?"

"Applejack, are you crazy?" the second Twilight said.

"Twi, don't deny it. You don't want to die, do ya?"

"Uh, of course not, but-"

"Exactly. Don't let them, join us."

Applejack pointed her hoof towards Twilight, offering her to take ahold of it. By this point, the original Twilight was beginning to suspect that they weren't exact copies. Rather, they were slightly darker in a way.

Twilight looked down at Applejack's hoof, which was still outstretched towards her. She wasn't sure what to do. She didn't want to start a fight against herself, but she didn't want to have to die.

She gulped, before taking Applejack's hoof. "Alright, I'm with you."

Twilight was shocked at herself for agreeing to something like that.

The doppelgängers turned around to face the original six, making them take another step backwards.

"Get them!" Rainbow Dash's duplicate ordered, before they all ran at them. They chased each other through the library, before chasing them out the door and making them run away.

"And don't come back!" Applejack's clone yelled as they ran off.

"You know what, Rainbow Dash?" Twilight said as they galloped through town. "I don't think they're exact copies of us."

"You just realised that?"