"Twilight, we need to talk." Pinkie Pie said sternly. "In private."
Twilight Sparkle turned to look at her friend. "What about?" she asked, confused.
Pinkie ignored her. "We'll go to your library. No one's there except for Spike, right?"
"Actually, Spike's not_"
"Great. Let's go." Pinkie started on her way to Twilight's library, not in her usual bouncy way at all. Twilight ran to catch up.
When the two reached their destination, Pinkie Pie shut all the doors and windows and sighed heavily.
"Pinkie, what's so important that you wanted to tell me?" Twilight asked. Pinkie looked up.
"First thing's first." she said simply. "I'm not actually Pinkie Pie."
"Of course you-"
A bright light that filled the room cut Twilight off. She shielded her eyes from the glow that was mysteriously surrounding her friend. It had completely engulfed her, then disappeared in an exploding way.
Twilight opened her eyes to see a light orange alicorn with a fall-colored mane standing in Pinkie's place.
"Are?" Twilight finished her sentence, completely stunned. "Who are you?"
"My name is Autumn Breeze, the Princess of Fall." the alicorn explained with a bow.
"Then where's the real Pinkie Pie?" Twilight persisted. "And how do you know who I am?"
"Actually, that's why I need to talk to you. But the story of how I know you will have to wait until later." Autumn closed her eyes and hung her head. "Pinkie and the rest of your friends...she got to them first." She glanced at Twilight. Twilight kept growing more and more anxious, and also a little confused.
"Who?"
"Thunder Dust, the Princess of Destruction. Twilight, all of Equestria-and everywhere else-is in danger and-"
"Wait, everywhere else?"
"Yes, I'm from Celentoria, a place outside of Equestria. Many years ago, the leaders of Celentoria divided our home from Equestria. All the princesses live in Celentoria...except for Celestia, Luna, and Cadence. And, apparently, you as well. The only way I know about you is because you are a new princess and have the elements of harmony. But that's not the point right now."
"I didn't know that Equestria wasn't the only place..." Twilight thought aloud.
"As I was saying, Thunder wants to destroy all friendship and control in our world. She took your friends because of the elements of harmony. I just hope we're not too late..."
"Too late?" Twilight repeated.
"She's going to use her magic on them first!" Autumn exclaimed. Twilight gasped.
"How do you know all this?" Twilight asked curiously.
"The princesses of Winter, Spring, Summer, and I are the protectors of the elements of harmony. We know when they are in trouble before it happens. This time, everyone's in trouble."
"I have a lot of questions, but I know that we'd better get started on saving my friends." Twilight said. Autumn nodded.
"Here, I've got a map." She used her magic to make a map appear right in front of them. "Unfortunately, Thunder Dust lives in Celentoria. We have a long and hard journey ahead of us..."
Fluttershy, Rarity, Pinkie Pie, and Applejack backed against the wall. A yellow alicorn with a black mane, referred to as Thunder Dust, came closer, an evil smile spreading across her face.
"Hey, mess with them, you mess with me!" Rainbow Dash shouted, flying towards Thunder. Thunder yawned and used her magic to crash Rainbow against the wall.
"Ouch..." Rainbow said, head spinning.
"I really wish Twilight were here." Fluttershy whispered to Rarity. "She'd probably know what to do." Rarity nodded.
"Now, where were we? Oh, yes." Thunder giggled. "Once I'm done with you, you'll all beex best friends! That will be a lot more entertaining!" She created a ball of magic and shot it straight at the 5 ponies.