So Pinkie Pie, Fluttershy, Applejack, Rarity, and Twilight had finally made it out of the forest, had heard a big boom, and got a good view at the boring old rainbow coloured sky...
Wait. WHAT?
"A SONIC RAINBOOM!" Pinkie cheered. "EVEN THOUGH IT'S IMPOSSIBLE AND WE'RE IN ANOTHER UNIVERSE RAINBOW CAN STILL PULL IT OFF!" she squealed. "Hey! Rainbow Dash might be there!" Rarity said, pointing at the edge, which kept spreading father across the sky. So the five girls ran, but the rainbow was faster. But then Fluttershy got an idea. She ran into some random store, no clue what town it was in, and came out with a... Lyre? Everypony could recognize it, though, since they were hanging with Lyra Heartstrings at Pinkie's last party.
Fluttershy sat down, and began to play. Animals began to crowd around her. Applejack ran into the store and hung some pipes around her neck. And Pinkie was going to go check if they had horns of any sort, but she didn't.
The music was just so soothing that Fluttershy grew wings, like in the human world. Mouthed, keep playing! to Applejack, and took off.
Usually she didn't like to fly, but this was an emergency. Some birds flew along with her. She flew faster and faster, but she was worried she'd get out of range soon. She slowed down and gestured for her friends to follow her. Eventually, Twilight got her wings, but no horn. However, Pinkie got a horn. Kinda like the ones the crystal ponies have, but softer, while Rarity got a banjo.
The more music, the better. Fluttershy then caught up with the pretty rainbow winged girl. "There you are! I've been looking for you! Recognize the staff?" Rainbow Dash said, after giving her friend a big hug. "Twilight!", and she hugged her, too. "Umm, according to the goddess of cures, I'm princess Genera." Twilight explained everything. "So, Rainbow, what have you been doing?" Fluttershy then asked.
"Umm, according to the Gods, I'm Iris. Goddess of the Rainbow." She then told her two friends where she ended up.
As they soared down, two sets of wings disappeared. Rarity, Applejack, and Pinkie put their instruments back, and discussed their situation once again.