It was Winter Wrap Up time in Ponyville, and none were more busy than the Mane 7.
"Ok so everypony has their jobs right?" said the Mayor, "Rainbow Dash will lead the weather team, Applejack the plant team, and er... that unicorn pony as the Animal Team"
"It's Amethyst Star" said the unicorn pony
“Wait, explain the logic behind a pony with that name being in charge of the animals?” asked the mayor.
“Fluttershy didn’t want to do it so we went with the second best choice; picking a name out of a hat.”
"Well, on that encouraging note, everypony knows what to do, so let's get to it." finished the Mayor
Twilight, being a newcomer, did not know what to do. She sang "Winter Wrap Up" and then went to her friends to see if she could piggyback off of their talents and ideas.
"What do you do Cassandra?" asked Twilight Sparkle
"I have to fly to the Northern Hemisphere and manually adjust the planet's axis."
"But that's impossible for one pony to do, let alone without magic!"
"I do like a good challenge" replied Cassandra, "and nothing's impossible when you put your mind to it. Smoke me a kipper, I'll be back for breakfast." She took off in a blaze of cyan light
"What a guy" said Twilight, looking on awestruck.
*****
Cassandra rocketed along the curvature of the planet. Lesser ponies would be fatigued, distracted by the beautiful landscape below. But not her. As she was flying along, she chanced upon a grey pegasus pony, whom she recognized as Ditzy Doo, fervently searching for something.
"Have you seen the southern birds?" asked Ditzy
"I'd be hard pressed to find a southern bird as ravishing as yourself" joked Cassandra, making Ditzy blush, "but you might have better luck if you went south instead. Here, I think I see the problem." She fixed Ditzy's eyes. "Anyway, I have to get back to my job, so you take care of yourself now." and she took off again, with Ditzy now flying back south.
"What a guy" said Ditzy.
The frozen tundra of the north was harsh and unforgiving, but Cassandra pressed on. Eventually she made it to the Northern Hemisphere. She took a deep breath and focused. This was a task so delicate that not even Celestia was trusted with it. One wrong move and the planet could be burned or frozen in an instant. Even harder than inventing the spell that let ponies breathe in space, was gathering the courage to do this. But Cassandra knew she had to, and with a momentous heave, she rolled the axis nice and steady until it was at just the right position, down to a trillionth of a second. Relieved and satisfied, she turned around and went home.
She got there just as the town was in a fervor over disorganization. Suddenly an idea occurred to her. She shouted,
"HEY!" Everyone went quiet in an instant. "Why don't you have Twilight be the leader? I got bored during my flight and made this tri-colored vest. Let's give it to her."
"What a guy" said the mayor.