“So how did you know about the changelings’ plan?” Twilight asked Applejack.
“Because I am a changeling,” Applejack said, and changed into her changeling form.
“What?” Twilight said.
“Wait, was Applejack a changeling all along, or…?” Spike asked.
“No, I’m not the real Applejack. Her whole family is in cocoons in the storage room of the Apple family house,” the fake Applejack said.
“The room where Granny Smith got the magnifying glass?” Twilight asked.
“Yeah, that room,” the fake Applejack said.
“How long have they been there?” Twilight asked.
“About a week,” the fake Applejack said.
“So you were the one who went to Manehattan with the rest of us?” Twilight asked.
“Yep,” the fake Applejack said.
“And you were the one who tore the pages of your copy of ‘What Are You Doing? Buy This Book Now!’ by Flimmy McFlammerson and wrote in it?” Twilight asked.
“Yep,” the fake Applejack said.
“Why so cryptic with the page tearing?” Twilight asked.
“Oh, that was just a coincidence,” the fake Applejack said. “I accidentally tore a few pages when I opened the book to write the little message in it. I figured you’d probably see it. And I wasn't really foalnapped; I just had no choice but to go with the others.”
“Hmm…” Twilight said. “But why did you help us?”
“I don’t want to follow Chrysalis anymore,” the fake Applejack said. “I want to follow Thorax instead.” Suddenly, the fake Applejack changed into the form popularized by Thorax and his changeling kingdom. “Yay!” the fake Applejack said, and started to fly away.
“Wait!” Twilight called after them. “Why did Chrysalis want to change the past in the first place?”
“I think she thought that if Ponyville hadn’t come to exist, you’d never have visited it and you’d never have stopped her!” the changeling called back, and flew off into the distance.