Ponyville
Inside of the Ponyville library, Rainbow Dash was returning her most recently finished Daring Do book to Twilight Sparkle.
"So, what did you think of this book?" Twilight asked as Spike, the purple dragon, put the book in it's correct position.
"It was even better than the last one!" Rainbow said, "I can't wait to read the next one!"
"Good! Spike, could you get the next book for rainbow dash?"
"I have it right here Twilight!" Spike said, waving the book in the air. Just then, Zecora the zebra burst into the room, causing Spike to lose his grip and fall of the ladder.
"Zecora, what's wrong?" Twilight asked
"I have come to you with a warning," Zecora said, "about what I have found this morning. I saw a changeling with my own eyes! It gave me a very nasty surprise."
"A changeling?!? I thought we got rid of them all! Show me where you found it."
"I knew you were the one to warn, but there was something wrong with this one's horn."
"Wrong? What do you mean by that?"
"Half of was not there, like it had been broken off elsewhere."
"No matter, we'll find it. Come on Rainbow Dash, let's find that changeling."
"Right!" All three of them dashed towards the Everfree forest as fast as they could to find the changeling.